-refactor TALER_AgeMask.mask -> TALER_AgeMask.bits

also: fix off-by-one in TALER_age_restriction_commit

README

@@ -24,7 +24,7 @@ works fine.  that does not work yet.  This package also only includes
 the Taler exchange, not the other components of the system.
 
 Documentation about Taler can be found at https://taler.net/.
-Our bug tracker is at https://gnunet.org/bugs/.
+Our bug tracker is at https://bugs.taler.net/.
 
 
 Joining GNU
@@ -43,9 +43,9 @@ Dependencies:
 
 These are the direct dependencies for running a Taler exchange:
 
-- GNUnet            >= 0.15.4
+- GNUnet            >= 0.16.0
 - GNU libmicrohttpd >= 0.9.71
-- Postgres          >= 9.5
+- PostgreSQL        >= 13.0
 
 
 

configure.ac

@@ -335,7 +335,7 @@ AS_IF([test $jansson = 0],
 
 
 # test for postgres
-AX_LIB_POSTGRESQL([9.3])
+AX_LIB_POSTGRESQL([13.0])
 AS_IF([test "x$found_postgresql" = "xyes"],[postgres=true])
 
 TALER_LIB_LDFLAGS="-export-dynamic -no-undefined"

contrib/gana

@@ -1 +1 @@
-Subproject commit f0deccc31022f5aa0eecfe4c9c173625f4a6d848
+Subproject commit 24eb905bac48869b4184801571c0728c772b299c

debian/taler-exchange.install

@@ -2,6 +2,7 @@ usr/bin/taler-exchange-aggregator
 usr/bin/taler-exchange-closer
 usr/bin/taler-exchange-dbinit
 usr/bin/taler-exchange-httpd
+usr/bin/taler-exchange-secmod-cs
 usr/bin/taler-exchange-secmod-eddsa
 usr/bin/taler-exchange-secmod-rsa
 usr/bin/taler-exchange-transfer
@@ -13,6 +14,7 @@ usr/share/man/man1/taler-exchange-dbinit*
 usr/share/man/man1/taler-exchange-httpd*
 usr/share/man/man1/taler-exchange-secmod-eddsa*
 usr/share/man/man1/taler-exchange-secmod-rsa*
+usr/share/man/man1/taler-exchange-secmod-cs*
 usr/share/man/man1/taler-exchange-transfer*
 usr/share/man/man1/taler-exchange-wirewatch*
 usr/share/man/man1/taler-bank*

debian/taler-exchange.postinst

@@ -9,6 +9,7 @@ _GROUPNAME=taler-exchange-secmod
 _DBGROUPNAME=taler-exchange-db
 _EUSERNAME=taler-exchange-httpd
 _CLOSERUSERNAME=taler-exchange-closer
+_CSECUSERNAME=taler-exchange-secmod-cs
 _RSECUSERNAME=taler-exchange-secmod-rsa
 _ESECUSERNAME=taler-exchange-secmod-eddsa
 _AGGRUSERNAME=taler-exchange-aggregator
@@ -33,6 +34,9 @@ configure)
   if ! getent passwd ${_RSECUSERNAME} >/dev/null; then
     adduser --quiet --system --no-create-home --ingroup ${_GROUPNAME} --home ${TALER_HOME} ${_RSECUSERNAME}
   fi
+  if ! getent passwd ${_CSECUSERNAME} >/dev/null; then
+    adduser --quiet --system --no-create-home --ingroup ${_GROUPNAME} --home ${TALER_HOME} ${_CSECUSERNAME}
+  fi
   if ! getent passwd ${_ESECUSERNAME} >/dev/null; then
     adduser --quiet --system --no-create-home --ingroup ${_GROUPNAME} --home ${TALER_HOME} ${_ESECUSERNAME}
   fi

debian/taler-exchange.taler-exchange-httpd.service

@@ -1,8 +1,8 @@
 [Unit]
 Description=GNU Taler payment system exchange REST API
 AssertPathExists=/run/taler/exchange-httpd
-Requires=taler-exchange-httpd.socket taler-exchange-secmod-rsa.service taler-exchange-secmod-eddsa.service
-After=postgres.service network.target taler-exchange-secmod-rsa.service taler-exchange-secmod-eddsa.service
+Requires=taler-exchange-httpd.socket taler-exchange-secmod-cs.service taler-exchange-secmod-rsa.service taler-exchange-secmod-eddsa.service
+After=postgres.service network.target taler-exchange-secmod-cs.service taler-exchange-secmod-rsa.service taler-exchange-secmod-eddsa.service
 PartOf=taler-exchange.target
 
 [Service]

debian/taler-exchange.taler-exchange-secmod-cs.service

@@ -0,0 +1,16 @@
+[Unit]
+Description=GNU Taler payment system exchange CS security module
+AssertPathExists=/run/taler/exchange-secmod-cs
+PartOf=taler-exchange.target
+
+[Service]
+User=taler-exchange-secmod-cs
+Type=simple
+Restart=always
+RestartSec=100ms
+ExecStart=/usr/bin/taler-exchange-secmod-cs -c /etc/taler/taler.conf
+StandardOutput=journal
+StandardError=journal
+PrivateTmp=no
+PrivateDevices=yes
+ProtectSystem=full

doc/cs/content/4_1_design.tex

@@ -111,12 +111,12 @@ The denomination key was chosen because it has the recopu protocol in place that
       \\\text{generate withdraw secret:}
       \\ \omega := randombytes(32)
       \\ \text{persist } \langle \omega, D_p \rangle
-      \\ n_w := \text{HKDF}(256, \omega,\text{"n"})
+      \\ n_w := \text{HKDF}(256, \omega, \text{"n"})
       \\ & \xrightarrow[\rule{2.5cm}{0pt}]{n_w, D_p} &
       % generate R
       \\ & & \text{verify if } D_p \text{ is valid}
-      \\ & & r_0 := \text{HKDF}(256,n_w || d_s, \text{"r0"})
-      \\ & & r_1 := \text{HKDF}(256,n_w || d_s, \text{"r1"})
+      \\ & & r_0 := \text{HKDF}(256,n_w || d_s, \text{"wr0"})
+      \\ & & r_1 := \text{HKDF}(256,n_w || d_s, \text{"wr1"})
       \\ & & R_0 := r_0G
       \\ & & R_1 := r_1G
       \\ & \xleftarrow[\rule{2.5cm}{0pt}]{R_0, R_1} &
@@ -169,13 +169,13 @@ The denomination key was chosen because it has the recopu protocol in place that
       \\ & & b := \text{HKDF}(1,n_w || d_s, \text{"b"})
       \\ & & s \leftarrow \text{GetWithdraw}(n_w, D_p)
       \\ & & \textbf{if } s = \bot
-      \\ & & \textbf{check !} \text{NonceReuse} (n_w, D_p)
+      \\ & & \textbf{check !} \text{NonceReuse} (n_w, D_p, \rho_W)
       \\ & & r_b := \text{HKDF}(256,n_w || d_s, \text{"r}b\text{"})
       % sign coin
       \\ & & s := r_b + c_b d_s \mod p
       % the following db operations are atomic
       \\ & & \text{decrease balance if sufficient and}
-      \\ & & \text{persist NonceUse } \langle n_w, D_p, s \rangle
+      \\ & & \text{persist NonceUse } \langle n_w, D_p, \rho_W \rangle
       \\ & & \text{persist } \langle D_p, s \rangle
       \\ & & \textbf{endif}
       \\ & \xleftarrow[\rule{2.5cm}{0pt}]{b,s} &
@@ -265,23 +265,21 @@ In the reveal phase, the RSA signing and unblinding is exchanged with Schnorr's
       \\ \text{coin}_0 = \langle D_{p(0)}, c_s^{(0)}, C_p^{(0)}, \sigma_c^{(0)} \rangle  &&  \text{new denomination keys } d_s, D_P
       % request r
       \\ & &
-      \\ \omega := randombytes(32)
-      \\ \text{persist } \langle \omega, D_p \rangle
-      %\\ s_w := \text{HKDF}(256,  c_s^{(0)},\text{"n"})
-      \\ n_r := \text{HKDF}(256, \omega,\text{"n"})
+      \\ n_r := randombytes(32)
+      \\ \text{persist } \langle n_r, D_p \rangle
       % sign with reserve sk
       \\ & \xrightarrow[\rule{2.5cm}{0pt}]{n_r, D_p} &
       % generate R
       \\ & & \text{verify if } D_p \text{ is valid}
-      \\ & & r_0 := \text{HKDF}(256,n_r || d_s, \text{"r0"})
-      \\ & & r_1 := \text{HKDF}(256,n_r || d_s, \text{"r1"})
+      \\ & & r_0 := \text{HKDF}(256, n_r || d_s, \text{"mr0"})
+      \\ & & r_1 := \text{HKDF}(256, n_r || d_s, \text{"mr1"})
       \\ & & R_0 := r_0G
       \\ & & R_1 := r_1G
       \\ & \xleftarrow[\rule{2cm}{0pt}]{R_0, R_1} &
       % refresh request
       \\ \textbf{for } i = 1, \dots, \kappa: % generate k derives
       %\\ s_i \leftarrow \{0,1\}^{256} % seed generation
-      \\ t_i := \text{HKDF}(256, \omega || R_0 || R_1,\text{"t} i \text{"} )  % seed generation
+      \\ t_i := \text{HKDF}(256, c_s^{(0)}, n_r || R_0 || R_1,\text{"t} i \text{"} )  % seed generation
       \\ X_i := \text{RefreshDerive}(t_i, D_p, C_p^{(0)}, R_0, R_1)
       \\ (T_i, c_s^{(i)}, C_p^{(i)}, \overline{c_0}, \overline{c_1}):= X_i
       \\ \textbf{endfor}
@@ -293,7 +291,7 @@ In the reveal phase, the RSA signing and unblinding is exchanged with Schnorr's
       \\ \rho_{RC} := \langle h_C, D_p, \text{ } D_{p(0)}, C_p^{(0)}, \sigma_C^{(0)} \rangle
       \\ \sigma_{RC} := \text{Ed25519.Sign}(c_s^{(0)}, \rho_{RC})
       \\ \text{Persist refresh-request}
-      \\ \langle \omega, R_0, R_1, \rho_{RC}, \sigma_{RC} \rangle
+      \\ \langle n_r, R_0, R_1, \rho_{RC}, \sigma_{RC} \rangle
       \\
       \\ & \textit{Continued in figure \ref{fig:refresh-commit-part2}} &
     \end{array}$
@@ -324,7 +322,7 @@ In the reveal phase, the RSA signing and unblinding is exchanged with Schnorr's
       \\ & & v := \text{Denomination}(D_p)
       \\ & & \textbf{check } \text{IsOverspending}(C_p^{(0)}, D_ {p(0)}, v)
       \\ & & \text{verify if } D_p \text{ is valid}
-      \\ & & \textbf{check !} \text{NonceReuse} (n_r, D_p)
+      \\ & & \textbf{check !} \text{NonceReuse} (n_r, D_p, \rho_{RC})
       \\ & & \textbf{check } \text{Schnorr.Verify}(D_{p(0)}, C_p^{(0)}, \sigma_C^{(0)})
       \\ & & \text{MarkFractionalSpend}(C_p^{(0)}, v)
       \\ & & \gamma \leftarrow \{1, \dots, \kappa\}
@@ -366,7 +364,7 @@ In the reveal phase, the RSA signing and unblinding is exchanged with Schnorr's
       \\ & & \langle T'_\gamma, \overline{c_0}_\gamma, \overline{c_1}_\gamma, S \rangle := \rho_{RR}
       \\ & & \langle t_1,\dots,t_{\gamma-1},t_{\gamma+1},\dots,t_\kappa \rangle := S
       \\ & & \textbf{check } \text{Ed25519.Verify}(C_p^{(0)}, \sigma_L, \rho_L)
-      \\ & & b := \text{HKDF}(1,n_r || d_{s(i)}, \text{"b"})
+      \\ & & b := \text{HKDF}(1, n_r || d_{s(i)}, \text{"b"})
       \\ & & \textbf{for } i = 1,\dots, \gamma-1, \gamma+1,\dots, \kappa
       \\ & & X_i := \text{RefreshDerive}(t_i, D_p, C_p^{(0)} \\ &&, R_0, R_1)
       \\ & & \langle T_i, c_s^{(i)}, C_p^{(i)}, \overline{c_1}_i, \overline{c_2}_i \rangle := X_i
@@ -377,7 +375,7 @@ In the reveal phase, the RSA signing and unblinding is exchanged with Schnorr's
       \\ & & h_{\overline{c}}' := H(h_{\overline{c_0}}, h_{\overline{c_1}}, n_r)
       \\ & & h_C' = H(h_T', h_{\overline{c}}')
       \\ & & \textbf{check } h_C = h_C'
-      \\ & & r_b := \text{HKDF}(256,n_r || d_s, \text{"r}b\text{"})
+      \\ & & r_b := \text{HKDF}(256, n_r || d_s, \text{"mr}b\text{"})
       \\ & & \overline{s}_{C_p}^{(\gamma)} = r_b + \overline{c_{b_\gamma}} d_s \mod p
       \\ & & \text{persist } \langle \rho_L, \sigma_L, S \rangle
       \\ & \xleftarrow[\rule{2.5cm}{0pt}]{b, \overline{s}_C^{(\gamma)}} &

m4/ax_compare_version.m4

@@ -0,0 +1,177 @@
+# ===========================================================================
+#    https://www.gnu.org/software/autoconf-archive/ax_compare_version.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_COMPARE_VERSION(VERSION_A, OP, VERSION_B, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
+#
+# DESCRIPTION
+#
+#   This macro compares two version strings. Due to the various number of
+#   minor-version numbers that can exist, and the fact that string
+#   comparisons are not compatible with numeric comparisons, this is not
+#   necessarily trivial to do in a autoconf script. This macro makes doing
+#   these comparisons easy.
+#
+#   The six basic comparisons are available, as well as checking equality
+#   limited to a certain number of minor-version levels.
+#
+#   The operator OP determines what type of comparison to do, and can be one
+#   of:
+#
+#    eq  - equal (test A == B)
+#    ne  - not equal (test A != B)
+#    le  - less than or equal (test A <= B)
+#    ge  - greater than or equal (test A >= B)
+#    lt  - less than (test A < B)
+#    gt  - greater than (test A > B)
+#
+#   Additionally, the eq and ne operator can have a number after it to limit
+#   the test to that number of minor versions.
+#
+#    eq0 - equal up to the length of the shorter version
+#    ne0 - not equal up to the length of the shorter version
+#    eqN - equal up to N sub-version levels
+#    neN - not equal up to N sub-version levels
+#
+#   When the condition is true, shell commands ACTION-IF-TRUE are run,
+#   otherwise shell commands ACTION-IF-FALSE are run. The environment
+#   variable 'ax_compare_version' is always set to either 'true' or 'false'
+#   as well.
+#
+#   Examples:
+#
+#     AX_COMPARE_VERSION([3.15.7],[lt],[3.15.8])
+#     AX_COMPARE_VERSION([3.15],[lt],[3.15.8])
+#
+#   would both be true.
+#
+#     AX_COMPARE_VERSION([3.15.7],[eq],[3.15.8])
+#     AX_COMPARE_VERSION([3.15],[gt],[3.15.8])
+#
+#   would both be false.
+#
+#     AX_COMPARE_VERSION([3.15.7],[eq2],[3.15.8])
+#
+#   would be true because it is only comparing two minor versions.
+#
+#     AX_COMPARE_VERSION([3.15.7],[eq0],[3.15])
+#
+#   would be true because it is only comparing the lesser number of minor
+#   versions of the two values.
+#
+#   Note: The characters that separate the version numbers do not matter. An
+#   empty string is the same as version 0. OP is evaluated by autoconf, not
+#   configure, so must be a string, not a variable.
+#
+#   The author would like to acknowledge Guido Draheim whose advice about
+#   the m4_case and m4_ifvaln functions make this macro only include the
+#   portions necessary to perform the specific comparison specified by the
+#   OP argument in the final configure script.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Tim Toolan <toolan@ele.uri.edu>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 13
+
+dnl #########################################################################
+AC_DEFUN([AX_COMPARE_VERSION], [
+  AC_REQUIRE([AC_PROG_AWK])
+
+  # Used to indicate true or false condition
+  ax_compare_version=false
+
+  # Convert the two version strings to be compared into a format that
+  # allows a simple string comparison.  The end result is that a version
+  # string of the form 1.12.5-r617 will be converted to the form
+  # 0001001200050617.  In other words, each number is zero padded to four
+  # digits, and non digits are removed.
+  AS_VAR_PUSHDEF([A],[ax_compare_version_A])
+  A=`echo "$1" | sed -e 's/\([[0-9]]*\)/Z\1Z/g' \
+                     -e 's/Z\([[0-9]]\)Z/Z0\1Z/g' \
+                     -e 's/Z\([[0-9]][[0-9]]\)Z/Z0\1Z/g' \
+                     -e 's/Z\([[0-9]][[0-9]][[0-9]]\)Z/Z0\1Z/g' \
+                     -e 's/[[^0-9]]//g'`
+
+  AS_VAR_PUSHDEF([B],[ax_compare_version_B])
+  B=`echo "$3" | sed -e 's/\([[0-9]]*\)/Z\1Z/g' \
+                     -e 's/Z\([[0-9]]\)Z/Z0\1Z/g' \
+                     -e 's/Z\([[0-9]][[0-9]]\)Z/Z0\1Z/g' \
+                     -e 's/Z\([[0-9]][[0-9]][[0-9]]\)Z/Z0\1Z/g' \
+                     -e 's/[[^0-9]]//g'`
+
+  dnl # In the case of le, ge, lt, and gt, the strings are sorted as necessary
+  dnl # then the first line is used to determine if the condition is true.
+  dnl # The sed right after the echo is to remove any indented white space.
+  m4_case(m4_tolower($2),
+  [lt],[
+    ax_compare_version=`echo "x$A
+x$B" | sed 's/^ *//' | sort -r | sed "s/x${A}/false/;s/x${B}/true/;1q"`
+  ],
+  [gt],[
+    ax_compare_version=`echo "x$A
+x$B" | sed 's/^ *//' | sort | sed "s/x${A}/false/;s/x${B}/true/;1q"`
+  ],
+  [le],[
+    ax_compare_version=`echo "x$A
+x$B" | sed 's/^ *//' | sort | sed "s/x${A}/true/;s/x${B}/false/;1q"`
+  ],
+  [ge],[
+    ax_compare_version=`echo "x$A
+x$B" | sed 's/^ *//' | sort -r | sed "s/x${A}/true/;s/x${B}/false/;1q"`
+  ],[
+    dnl Split the operator from the subversion count if present.
+    m4_bmatch(m4_substr($2,2),
+    [0],[
+      # A count of zero means use the length of the shorter version.
+      # Determine the number of characters in A and B.
+      ax_compare_version_len_A=`echo "$A" | $AWK '{print(length)}'`
+      ax_compare_version_len_B=`echo "$B" | $AWK '{print(length)}'`
+
+      # Set A to no more than B's length and B to no more than A's length.
+      A=`echo "$A" | sed "s/\(.\{$ax_compare_version_len_B\}\).*/\1/"`
+      B=`echo "$B" | sed "s/\(.\{$ax_compare_version_len_A\}\).*/\1/"`
+    ],
+    [[0-9]+],[
+      # A count greater than zero means use only that many subversions
+      A=`echo "$A" | sed "s/\(\([[0-9]]\{4\}\)\{m4_substr($2,2)\}\).*/\1/"`
+      B=`echo "$B" | sed "s/\(\([[0-9]]\{4\}\)\{m4_substr($2,2)\}\).*/\1/"`
+    ],
+    [.+],[
+      AC_WARNING(
+        [invalid OP numeric parameter: $2])
+    ],[])
+
+    # Pad zeros at end of numbers to make same length.
+    ax_compare_version_tmp_A="$A`echo $B | sed 's/./0/g'`"
+    B="$B`echo $A | sed 's/./0/g'`"
+    A="$ax_compare_version_tmp_A"
+
+    # Check for equality or inequality as necessary.
+    m4_case(m4_tolower(m4_substr($2,0,2)),
+    [eq],[
+      test "x$A" = "x$B" && ax_compare_version=true
+    ],
+    [ne],[
+      test "x$A" != "x$B" && ax_compare_version=true
+    ],[
+      AC_WARNING([invalid OP parameter: $2])
+    ])
+  ])
+
+  AS_VAR_POPDEF([A])dnl
+  AS_VAR_POPDEF([B])dnl
+
+  dnl # Execute ACTION-IF-TRUE / ACTION-IF-FALSE.
+  if test "$ax_compare_version" = "true" ; then
+    m4_ifvaln([$4],[$4],[:])dnl
+    m4_ifvaln([$5],[else $5])dnl
+  fi
+]) dnl AX_COMPARE_VERSION

m4/ax_lib_postgresql.m4

@@ -1,10 +1,10 @@
 # ===========================================================================
-#     http://www.gnu.org/software/autoconf-archive/ax_lib_postgresql.html
+#    https://www.gnu.org/software/autoconf-archive/ax_lib_postgresql.html
 # ===========================================================================
 #
 # SYNOPSIS
 #
-#   AX_LIB_POSTGRESQL([MINIMUM-VERSION])
+#   AX_LIB_POSTGRESQL([MINIMUM-VERSION],[ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND])
 #
 # DESCRIPTION
 #
@@ -23,28 +23,132 @@
 #   should be in the PATH)
 #
 #   path - complete path to pg_config utility, use this option if pg_config
-#   can't be found in the PATH
+#   can't be found in the PATH (You could set also PG_CONFIG variable)
 #
 #   This macro calls:
 #
 #     AC_SUBST(POSTGRESQL_CPPFLAGS)
 #     AC_SUBST(POSTGRESQL_LDFLAGS)
+#     AC_SUBST(POSTGRESQL_LIBS)
 #     AC_SUBST(POSTGRESQL_VERSION)
 #
 #   And sets:
 #
 #     HAVE_POSTGRESQL
 #
+#   It execute if found ACTION-IF-FOUND (empty by default) and
+#   ACTION-IF-NOT-FOUND (AC_MSG_FAILURE by default) if not found.
+#
 # LICENSE
 #
 #   Copyright (c) 2008 Mateusz Loskot <mateusz@loskot.net>
+#   Copyright (c) 2014 Sree Harsha Totakura <sreeharsha@totakura.in>
+#   Copyright (c) 2018 Bastien Roucaries <rouca@debian.org>
 #
 #   Copying and distribution of this file, with or without modification, are
 #   permitted in any medium without royalty provided the copyright notice
 #   and this notice are preserved. This file is offered as-is, without any
 #   warranty.
 
-#serial 9
+#serial 22
+
+AC_DEFUN([_AX_LIB_POSTGRESQL_OLD],[
+	found_postgresql="no"
+	_AX_LIB_POSTGRESQL_OLD_fail="no"
+	while true; do
+	  AC_CACHE_CHECK([for the pg_config program], [ac_cv_path_PG_CONFIG],
+	    [AC_PATH_PROGS_FEATURE_CHECK([PG_CONFIG], [pg_config],
+	      [[ac_cv_path_PG_CONFIG="";$ac_path_PG_CONFIG --includedir > /dev/null \
+		&& ac_cv_path_PG_CONFIG=$ac_path_PG_CONFIG ac_path_PG_CONFIG_found=:]],
+	      [ac_cv_path_PG_CONFIG=""])])
+	  PG_CONFIG=$ac_cv_path_PG_CONFIG
+	  AS_IF([test "X$PG_CONFIG" = "X"],[break])
+
+	  AC_CACHE_CHECK([for the PostgreSQL libraries CPPFLAGS],[ac_cv_POSTGRESQL_CPPFLAGS],
+		       [ac_cv_POSTGRESQL_CPPFLAGS="-I`$PG_CONFIG --includedir`" || _AX_LIB_POSTGRESQL_OLD_fail=yes])
+	  AS_IF([test "X$_AX_LIB_POSTGRESQL_OLD_fail" = "Xyes"],[break])
+	  POSTGRESQL_CPPFLAGS="$ac_cv_POSTGRESQL_CPPFLAGS"
+
+	  AC_CACHE_CHECK([for the PostgreSQL libraries LDFLAGS],[ac_cv_POSTGRESQL_LDFLAGS],
+		       [ac_cv_POSTGRESQL_LDFLAGS="-L`$PG_CONFIG --libdir`" || _AX_LIB_POSTGRESQL_OLD_fail=yes])
+	  AS_IF([test "X$_AX_LIB_POSTGRESQL_OLD_fail" = "Xyes"],[break])
+	  POSTGRESQL_LDFLAGS="$ac_cv_POSTGRESQL_LDFLAGS"
+
+	  AC_CACHE_CHECK([for the PostgreSQL libraries LIBS],[ac_cv_POSTGRESQL_LIBS],
+		       [ac_cv_POSTGRESQL_LIBS="-lpq"])
+	  POSTGRESQL_LIBS="$ac_cv_POSTGRESQL_LIBS"
+
+	  AC_CACHE_CHECK([for the PostgreSQL version],[ac_cv_POSTGRESQL_VERSION],
+		       [
+			ac_cv_POSTGRESQL_VERSION=`$PG_CONFIG --version | sed "s/^PostgreSQL[[[:space:]]][[[:space:]]]*\([[0-9.]][[0-9.]]*\).*/\1/"` \
+			      || _AX_LIB_POSTGRESQL_OLD_fail=yes
+		       ])
+	  AS_IF([test "X$_AX_LIB_POSTGRESQL_OLD_fail" = "Xyes"],[break])
+	  POSTGRESQL_VERSION="$ac_cv_POSTGRESQL_VERSION"
+
+
+	  dnl
+	  dnl Check if required version of PostgreSQL is available
+	  dnl
+	  AS_IF([test X"$postgresql_version_req" != "X"],[
+	     AC_MSG_CHECKING([if PostgreSQL version $POSTGRESQL_VERSION is >= $postgresql_version_req])
+	     AX_COMPARE_VERSION([$POSTGRESQL_VERSION],[ge],[$postgresql_version_req],
+				[found_postgresql_req_version=yes],[found_postgresql_req_version=no])
+	     AC_MSG_RESULT([$found_postgresql_req_version])
+	  ])
+	  AS_IF([test "Xfound_postgresql_req_version" = "Xno"],[break])
+
+	  found_postgresql="yes"
+	  break
+	done
+])
+
+AC_DEFUN([_AX_LIB_POSTGRESQL_PKG_CONFIG],
+[
+  AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+  found_postgresql=no
+
+  while true; do
+    PKG_PROG_PKG_CONFIG
+    AS_IF([test X$PKG_CONFIG = X],[break])
+
+    _AX_LIB_POSTGRESQL_PKG_CONFIG_fail=no;
+    AS_IF([test "X$postgresql_version_req" = "X"],
+	  [PKG_CHECK_EXISTS([libpq],[found_postgresql_pkg_config=yes],[found_postgresql=no])],
+	  [PKG_CHECK_EXISTS([libpq >= "$postgresql_version_req"],
+			   [found_postgresql=yes],[found_postgresql=no])])
+    AS_IF([test "X$found_postgresql" = "no"],[break])
+
+    AC_CACHE_CHECK([for the PostgreSQL libraries CPPFLAGS],[ac_cv_POSTGRESQL_CPPFLAGS],
+		   [ac_cv_POSTGRESQL_CPPFLAGS="`$PKG_CONFIG libpq --cflags-only-I`" || _AX_LIB_POSTGRESQL_PKG_CONFIG_fail=yes])
+    AS_IF([test "X$_AX_LIB_POSTGRESQL_PKG_CONFIG_fail" = "Xyes"],[break])
+    POSTGRESQL_CPPFLAGS="$ac_cv_POSTGRESQL_CPPFLAGS"
+
+
+    AC_CACHE_CHECK([for the PostgreSQL libraries LDFLAGS],[ac_cv_POSTGRESQL_LDFLAGS],
+		   [ac_cv_POSTGRESQL_LDFLAGS="`$PKG_CONFIG libpq --libs-only-L --libs-only-other`" || _AX_LIB_POSTGRESQL_PKG_CONFIG_fail=yes])
+    AS_IF([test "X$_AX_LIB_POSTGRESQL_PKG_CONFIG_fail" = "Xyes"],[break])
+    POSTGRESQL_LDFLAGS="$ac_cv_POSTGRESQL_LDFLAGS"
+
+
+    AC_CACHE_CHECK([for the PostgreSQL libraries LIBS],[ac_cv_POSTGRESQL_LIBS],
+		   [ac_cv_POSTGRESQL_LIBS="`$PKG_CONFIG libpq --libs-only-l`" || _AX_LIB_POSTGRESQL_PKG_CONFIG_fail=ye])
+    AS_IF([test "X$_AX_LIB_POSTGRESQL_PKG_CONFIG_fail" = "Xyes"],[break])
+    POSTGRESQL_LIBS="$ac_cv_POSTGRESQL_LIBS"
+
+    dnl already checked by exist but need to be recovered
+    AC_CACHE_CHECK([for the PostgreSQL version],[ac_cv_POSTGRESQL_VERSION],
+		   [ac_cv_POSTGRESQL_VERSION="`$PKG_CONFIG libpq --modversion`" || _AX_LIB_POSTGRESQL_PKG_CONFIG_fail=yes])
+    AS_IF([test "X$_AX_LIB_POSTGRESQL_PKG_CONFIG_fail" = "Xyes"],[break])
+    POSTGRESQL_VERSION="$ac_cv_POSTGRESQL_VERSION"
+
+    found_postgresql=yes
+    break;
+  done
+
+])
+
+
 
 AC_DEFUN([AX_LIB_POSTGRESQL],
 [
@@ -53,103 +157,91 @@ AC_DEFUN([AX_LIB_POSTGRESQL],
 	    [use PostgreSQL library @<:@default=yes@:>@, optionally specify path to pg_config]
 	),
 	[
-        if test "$withval" = "no"; then
-            want_postgresql="no"
-        elif test "$withval" = "yes"; then
-            want_postgresql="yes"
-        else
+	AS_CASE([$withval],
+		[[[nN]][[oO]]],[want_postgresql="no"],
+		[[[yY]][[eE]][[sS]]],[want_postgresql="yes"],
+		[
 			want_postgresql="yes"
 			PG_CONFIG="$withval"
-        fi
+		])
 	],
 	[want_postgresql="yes"]
     )
 
-    POSTGRESQL_CPPFLAGS=""
-    POSTGRESQL_LDFLAGS=""
+    AC_ARG_VAR([POSTGRESQL_CPPFLAGS],[cpp flags for PostgreSQL overriding detected flags])
+    AC_ARG_VAR([POSTGRESQL_LIBFLAGS],[libs for PostgreSQL overriding detected flags])
+    AC_ARG_VAR([POSTGRESQL_LDFLAGS],[linker flags for PostgreSQL overriding detected flags])
+
+    # populate cache
+    AS_IF([test "X$POSTGRESQL_CPPFLAGS" != X],[ac_cv_POSTGRESQL_CPPFLAGS="$POSTGRESQL_CPPFLAGS"])
+    AS_IF([test "X$POSTGRESQL_LDFLAGS" != X],[ac_cv_POSTGRESQL_LDFLAGS="$POSTGRESQL_LDFLAGS"])
+    AS_IF([test "X$POSTGRESQL_LIBS" != X],[ac_cv_POSTGRESQL_LIBS="$POSTGRESQL_LIBS"])
+
+    postgresql_version_req=ifelse([$1], [], [], [$1])
+    found_postgresql="no"
+
     POSTGRESQL_VERSION=""
 
     dnl
     dnl Check PostgreSQL libraries (libpq)
     dnl
+    AS_IF([test X"$want_postgresql" = "Xyes"],[
+      _AX_LIB_POSTGRESQL_PKG_CONFIG
 
-    if test "$want_postgresql" = "yes"; then
 
-        if test -z "$PG_CONFIG" -o test; then
-            AC_PATH_PROG([PG_CONFIG], [pg_config], [])
-        fi
+      AS_IF([test X"$found_postgresql" = "Xno"],
+	    [_AX_LIB_POSTGRESQL_OLD])
 
-        if test ! -x "$PG_CONFIG"; then
-            dnl AC_MSG_ERROR([$PG_CONFIG does not exist or it is not an exectuable file])
-            PG_CONFIG="no"
-            found_postgresql="no"
-        fi
+      AS_IF([test X"$found_postgresql" = Xyes],[
+	  _AX_LIB_POSTGRESQL_OLD_CPPFLAGS="$CPPFLAGS"
+	  CPPFLAGS="$CPPFLAGS $POSTGRESQL_CPPFLAGS"
+	  _AX_LIB_POSTGRESQL_OLD_LDFLAGS="$LDFLAGS"
+	  LDFLAGS="$LDFLAGS $POSTGRESQL_LDFLAGS"
+	  _AX_LIB_POSTGRESQL_OLD_LIBS="$LIBS"
+	  LIBS="$LIBS $POSTGRESQL_LIBS"
+	  while true; do
+	    dnl try to compile
+	    AC_CHECK_HEADER([libpq-fe.h],[],[found_postgresql=no])
+	    AS_IF([test "X$found_postgresql" = "Xno"],[break])
+	    dnl try now to link
+	    AC_CACHE_CHECK([for the PostgreSQL library linking is working],[ac_cv_postgresql_found],
+	    [
+	      AC_LINK_IFELSE([
+		AC_LANG_PROGRAM(
+		  [
+		   #include <libpq-fe.h>
+		  ],
+		  [[
+		    char conninfo[]="dbname = postgres";
+		    PGconn     *conn;
+		    conn = PQconnectdb(conninfo);
+		  ]]
+		 )
+		],[ac_cv_postgresql_found=yes],
+		  [ac_cv_postgresql_found=no])
+	     ])
+	    found_postgresql="$ac_cv_postgresql_found"
+	    AS_IF([test "X$found_postgresql" = "Xno"],[break])
+	    break
+	done
+	CPPFLAGS="$_AX_LIB_POSTGRESQL_OLD_CPPFLAGS"
+	LDFLAGS="$_AX_LIB_POSTGRESQL_OLD_LDFLAGS"
+	LIBS="$_AX_LIB_POSTGRESQL_OLD_LIBS"
+	])
 
-        if test "$PG_CONFIG" != "no"; then
-            AC_MSG_CHECKING([for PostgreSQL libraries])
-
-            POSTGRESQL_CPPFLAGS="-I`$PG_CONFIG --includedir`"
-            POSTGRESQL_LDFLAGS="-L`$PG_CONFIG --libdir`"
-
-            POSTGRESQL_VERSION=`$PG_CONFIG --version | sed -e 's#PostgreSQL ##' | awk '{print $1}'`
 
+      AS_IF([test "x$found_postgresql" = "xyes"],[
 		AC_DEFINE([HAVE_POSTGRESQL], [1],
-                [Define to 1 if PostgreSQL libraries are available])
-
-            found_postgresql="yes"
-            AC_MSG_RESULT([yes])
-        else
-            found_postgresql="no"
-            AC_MSG_RESULT([no])
-        fi
-    fi
-
-    dnl
-    dnl Check if required version of PostgreSQL is available
-    dnl
-
-
-    postgresql_version_req=ifelse([$1], [], [], [$1])
-
-    if test "$found_postgresql" = "yes" -a -n "$postgresql_version_req"; then
-
-        AC_MSG_CHECKING([if PostgreSQL version $POSTGRESQL_VERSION is >= $postgresql_version_req])
-
-        dnl Decompose required version string of PostgreSQL
-        dnl and calculate its number representation
-        postgresql_version_req_major=`expr $postgresql_version_req : '\([[0-9]]*\)'`
-        postgresql_version_req_minor=`expr $postgresql_version_req : '[[0-9]]*\.\([[0-9]]*\)'`
-        postgresql_version_req_micro=`expr $postgresql_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
-        if test "x$postgresql_version_req_micro" = "x"; then
-            postgresql_version_req_micro="0"
-        fi
-
-        postgresql_version_req_number=`expr $postgresql_version_req_major \* 1000000 \
-                                   \+ $postgresql_version_req_minor \* 1000 \
-                                   \+ $postgresql_version_req_micro`
-
-        dnl Decompose version string of installed PostgreSQL
-        dnl and calculate its number representation
-        postgresql_version_major=`expr $POSTGRESQL_VERSION : '\([[0-9]]*\)'`
-        postgresql_version_minor=`expr $POSTGRESQL_VERSION : '[[0-9]]*\.\([[0-9]]*\)'`
-        postgresql_version_micro=`expr $POSTGRESQL_VERSION : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
-        if test "x$postgresql_version_micro" = "x"; then
-            postgresql_version_micro="0"
-        fi
-
-        postgresql_version_number=`expr $postgresql_version_major \* 1000000 \
-                                   \+ $postgresql_version_minor \* 1000 \
-                                   \+ $postgresql_version_micro`
-
-        postgresql_version_check=`expr $postgresql_version_number \>\= $postgresql_version_req_number`
-        if test "$postgresql_version_check" = "1"; then
-            AC_MSG_RESULT([yes])
-        else
-            AC_MSG_RESULT([no])
-        fi
-    fi
+			  [Define to 1 if PostgreSQL libraries are available])])
+    ])
 
     AC_SUBST([POSTGRESQL_VERSION])
     AC_SUBST([POSTGRESQL_CPPFLAGS])
     AC_SUBST([POSTGRESQL_LDFLAGS])
+    AC_SUBST([POSTGRESQL_LIBS])
+
+    AS_IF([test "x$found_postgresql" = "xyes"],
+     [ifelse([$2], , :, [$2])],
+     [ifelse([$3], , AS_IF([test X"$want_postgresql" = "Xyes"],[AC_MSG_ERROR([Library requirements (PostgreSQL) not met.])],[:]), [$3])])
+
 ])

src/auditor/Makefile.am

@@ -193,14 +193,16 @@ check_SCRIPTS = \
   test-sync.sh
 
 .NOTPARALLEL:
-# Disabled for now: need working wallet first!
+# revocation test disabled for now: need working wallet first!
 # TESTS = $(check_SCRIPTS)
+TESTS = \
+  test-auditor.sh \
+  test-sync.sh
 
 EXTRA_DIST = \
   taler-auditor.in \
   taler-helper-auditor-render.py \
   auditor.conf \
-  test-auditor.conf \
   test-sync-in.conf \
   test-sync-out.conf \
   generate-auditor-basedb.sh \
@@ -209,8 +211,10 @@ EXTRA_DIST = \
   generate-auditor-basedb-template.conf \
   $(check_SCRIPTS) \
   auditor-basedb.age \
+  auditor-basedb.conf \
   auditor-basedb.sql \
   auditor-basedb.mpub \
   revoke-basedb.age \
+  revoke-basedb.conf \
   revoke-basedb.sql \
   revoke-basedb.mpub

src/auditor/auditor-basedb.age

@@ -1 +1 @@
-1638356946
+1646042841

src/auditor/auditor-basedb.conf

@@ -0,0 +1,186 @@
+[arm]
+CONFIG = /research/taler/exchange/src/auditor/auditor-basedb.conf
+
+[benchmark]
+MERCHANT_DETAILS = merchant_details.json
+BANK_DETAILS = bank_details.json
+
+[coin_kudos_10]
+rsa_keysize = 1024
+CIPHER = RSA
+fee_refund = TESTKUDOS:0.01
+fee_refresh = TESTKUDOS:0.03
+fee_deposit = TESTKUDOS:0.01
+fee_withdraw = TESTKUDOS:0.01
+duration_legal = 3 years
+duration_spend = 2 years
+duration_withdraw = 7 days
+value = TESTKUDOS:10
+
+[coin_kudos_8]
+rsa_keysize = 1024
+CIPHER = RSA
+fee_refund = TESTKUDOS:0.04
+fee_refresh = TESTKUDOS:0.03
+fee_deposit = TESTKUDOS:0.02
+fee_withdraw = TESTKUDOS:0.05
+duration_legal = 3 years
+duration_spend = 2 years
+duration_withdraw = 7 days
+value = TESTKUDOS:8
+
+[coin_kudos_5]
+rsa_keysize = 1024
+CIPHER = RSA
+fee_refund = TESTKUDOS:0.01
+fee_refresh = TESTKUDOS:0.03
+fee_deposit = TESTKUDOS:0.01
+fee_withdraw = TESTKUDOS:0.01
+duration_legal = 3 years
+duration_spend = 2 years
+duration_withdraw = 7 days
+value = TESTKUDOS:5
+
+[coin_kudos_4]
+rsa_keysize = 1024
+CIPHER = RSA
+fee_refund = TESTKUDOS:0.02
+fee_refresh = TESTKUDOS:0.04
+fee_deposit = TESTKUDOS:0.03
+fee_withdraw = TESTKUDOS:0.03
+duration_legal = 3 years
+duration_spend = 2 years
+duration_withdraw = 7 days
+value = TESTKUDOS:4
+
+[coin_kudos_2]
+rsa_keysize = 1024
+CIPHER = RSA
+fee_refund = TESTKUDOS:0.02
+fee_refresh = TESTKUDOS:0.04
+fee_deposit = TESTKUDOS:0.03
+fee_withdraw = TESTKUDOS:0.03
+duration_legal = 3 years
+duration_spend = 2 years
+duration_withdraw = 7 days
+value = TESTKUDOS:2
+
+[coin_kudos_1]
+rsa_keysize = 1024
+CIPHER = RSA
+fee_refund = TESTKUDOS:0.01
+fee_refresh = TESTKUDOS:0.03
+fee_deposit = TESTKUDOS:0.02
+fee_withdraw = TESTKUDOS:0.02
+duration_legal = 3 years
+duration_spend = 2 years
+duration_withdraw = 7 days
+value = TESTKUDOS:1
+
+[coin_kudos_ct_10]
+rsa_keysize = 1024
+CIPHER = RSA
+fee_refund = TESTKUDOS:0.01
+fee_refresh = TESTKUDOS:0.03
+fee_deposit = TESTKUDOS:0.01
+fee_withdraw = TESTKUDOS:0.01
+duration_legal = 3 years
+duration_spend = 2 years
+duration_withdraw = 7 days
+value = TESTKUDOS:0.10
+
+[coin_kudos_ct_1]
+rsa_keysize = 1024
+CIPHER = RSA
+fee_refund = TESTKUDOS:0.01
+fee_refresh = TESTKUDOS:0.01
+fee_deposit = TESTKUDOS:0.01
+fee_withdraw = TESTKUDOS:0.01
+duration_legal = 3 years
+duration_spend = 2 years
+duration_withdraw = 7 days
+value = TESTKUDOS:0.01
+
+[payments-generator]
+exchange = http://localhost:8081/
+exchange-admin = http://localhost:18080/
+exchange_admin = http://localhost:18080/
+merchant = http://localhost:9966/
+bank = http://localhost:8082/
+instance = default
+currency = TESTKUDOS
+
+[merchant-exchange-default]
+CURRENCY = TESTKUDOS
+EXCHANGE_BASE_URL = http://localhost:8081/
+MASTER_KEY = TMQ09D9G18Z8TFEABD833SDJ6JQWRYKFHPTWT6DMPQS54ZC66RDG
+
+[merchant-account-merchant]
+ACTIVE_default = YES
+HONOR_default = YES
+PAYTO_URI = payto://x-taler-bank/localhost/42
+
+[exchange-accountcredentials-1]
+PASSWORD = x
+USERNAME = Exchange
+WIRE_GATEWAY_AUTH_METHOD = basic
+WIRE_GATEWAY_URL = http://localhost:8082/taler-wire-gateway/Exchange/
+
+[exchange-account-1]
+enable_credit = yes
+enable_debit = yes
+PAYTO_URI = payto://x-taler-bank/localhost/Exchange
+
+[instance-default]
+NAME = Merchant Inc.
+KEYFILE = ${TALER_DATA_HOME}/merchant/default.priv
+
+[taler]
+CURRENCY_ROUND_UNIT = TESTKUDOS:0.01
+CURRENCY = TESTKUDOS
+
+[merchantdb-postgres]
+CONFIG = postgres:///auditor-basedb
+
+[merchant]
+DEFAULT_MAX_WIRE_FEE = TESTKUDOS:0.10
+KEYFILE = ${TALER_DATA_HOME}/merchant/merchant.priv
+DEFAULT_MAX_DEPOSIT_FEE = TESTKUDOS:0.1
+WIREFORMAT = default
+WIRE_TRANSFER_DELAY = 1 minute
+FORCE_AUDIT = YES
+UNIXPATH = ${TALER_RUNTIME_DIR}/merchant.http
+
+[exchangedb-postgres]
+CONFIG = postgres:///auditor-basedb
+
+[exchange]
+LOOKAHEAD_SIGN = 32 weeks 1 day
+SIGNKEY_DURATION = 4 weeks
+MASTER_PUBLIC_KEY = TMQ09D9G18Z8TFEABD833SDJ6JQWRYKFHPTWT6DMPQS54ZC66RDG
+SIGNKEY_LEGAL_DURATION = 4 weeks
+UNIXPATH = ${TALER_RUNTIME_DIR}/exchange.http
+
+[bank]
+SERVE = http
+ALLOW_REGISTRATIONS = YES
+SUGGESTED_EXCHANGE_PAYTO = payto://x-taler-bank/localhost/2
+SUGGESTED_EXCHANGE = http://localhost:8081/
+HTTP_PORT = 8082
+MAX_DEBT_BANK = TESTKUDOS:100000.0
+MAX_DEBT = TESTKUDOS:50.0
+DATABASE = postgres:///taler-auditor-basedb
+
+[auditordb-postgres]
+CONFIG = postgres:///taler-auditor-basedb
+
+[auditor]
+PUBLIC_KEY = 95FVPHMW4110HTPVSGMT2YMDE2BSGXZEV5WSV0TD1DXMF2RQ5HN0
+TINY_AMOUNT = TESTKUDOS:0.01
+BASE_URL = http://localhost:8083/
+
+[PATHS]
+TALER_CACHE_HOME = $TALER_HOME/.cache/taler/
+TALER_CONFIG_HOME = $TALER_HOME/.config/taler/
+TALER_DATA_HOME = $TALER_HOME/.local/share/taler/
+TALER_HOME = ${PWD}/generate_auditordb_home/

src/auditor/auditor-basedb.mpub

@@ -1 +1 @@
-R8JBA9089F3YRRSQDPWB92CZ5V1V0J1BPVW8J1B0P8VCVH71CYY0
+TMQ09D9G18Z8TFEABD833SDJ6JQWRYKFHPTWT6DMPQS54ZC66RDG

src/auditor/generate-auditor-basedb.sh

@@ -41,9 +41,9 @@ BASEDB=${1:-"auditor-basedb"}
 # Name of the Postgres database we will use for the script.
 # Will be dropped, do NOT use anything that might be used
 # elsewhere
-TARGET_DB=taler-auditor-basedb
+export TARGET_DB=${BASEDB}
 
-WALLET_DB=${BASEDB:-"wallet"}.wdb
+export WALLET_DB=${BASEDB:-"wallet"}.wdb
 
 # delete existing wallet database
 rm -f $WALLET_DB
@@ -51,7 +51,7 @@ rm -f $WALLET_DB
 
 # Configuration file will be edited, so we create one
 # from the template.
-CONF=generate-auditor-basedb-prod.conf
+CONF=${BASEDB}.conf
 cp generate-auditor-basedb-template.conf $CONF
 
 
@@ -92,8 +92,11 @@ mkdir -p $AUDITOR_PRIV_DIR
 gnunet-ecc -g1 $AUDITOR_PRIV_FILE > /dev/null
 AUDITOR_PUB=`gnunet-ecc -p $AUDITOR_PRIV_FILE`
 
+echo "AUDITOR PUB is $AUDITOR_PUB using file $AUDITOR_PRIV_FILE"
+
 # patch configuration
 taler-config -c $CONF -s exchange -o MASTER_PUBLIC_KEY -V $MASTER_PUB
+taler-config -c $CONF -s auditor -o PUBLIC_KEY -V $AUDITOR_PUB
 taler-config -c $CONF -s merchant-exchange-default -o MASTER_KEY -V $MASTER_PUB
 taler-config -c $CONF -s exchangedb-postgres -o CONFIG -V postgres:///$TARGET_DB
 taler-config -c $CONF -s auditordb-postgres -o CONFIG -V postgres:///$TARGET_DB
@@ -120,6 +123,7 @@ TBINPFX=`dirname $TFN`
 TLIBEXEC=${TBINPFX}/../lib/taler/libexec/
 taler-exchange-secmod-eddsa -c $CONF 2> taler-exchange-secmod-eddsa.log &
 taler-exchange-secmod-rsa -c $CONF 2> taler-exchange-secmod-rsa.log &
+taler-exchange-secmod-cs -c $CONF 2> taler-exchange-secmod-cs.log &
 taler-exchange-httpd -c $CONF 2> taler-exchange-httpd.log &
 taler-merchant-httpd -c $CONF -L INFO 2> taler-merchant-httpd.log &
 taler-exchange-wirewatch -c $CONF 2> taler-exchange-wirewatch.log &
@@ -237,7 +241,6 @@ echo "Final clean up"
 dropdb $TARGET_DB
 
 rm -rf $DATA_DIR || true
-rm $CONF
 
 echo "====================================="
 echo "  Finished generation of $BASEDB"

src/auditor/generate-revoke-basedb.sh

@@ -32,7 +32,7 @@ export BASEDB=${1:-"revoke-basedb"}
 # Name of the Postgres database we will use for the script.
 # Will be dropped, do NOT use anything that might be used
 # elsewhere
-export TARGET_DB=taler-auditor-revokedb
+export TARGET_DB=${BASEDB}
 TMP_DIR=`mktemp -d revocation-tmp-XXXXXX`
 export WALLET_DB=wallet-revocation.json
 rm -f $WALLET_DB
@@ -109,7 +109,9 @@ TLIBEXEC=${TBINPFX}/../lib/taler/libexec/
 taler-exchange-secmod-eddsa -c $CONF 2> taler-exchange-secmod-eddsa.log &
 SIGNKEY_HELPER_PID=$!
 taler-exchange-secmod-rsa -c $CONF 2> taler-exchange-secmod-rsa.log &
-DENOM_HELPER_PID=$!
+RSA_DENOM_HELPER_PID=$!
+taler-exchange-secmod-cs -c $CONF 2> taler-exchange-secmod-cs.log &
+CS_DENOM_HELPER_PID=$!
 taler-exchange-httpd -c $CONF 2> taler-exchange-httpd.log &
 EXCHANGE_PID=$!
 taler-merchant-httpd -c $CONF -L INFO 2> taler-merchant-httpd.log &
@@ -277,12 +279,15 @@ export TIMETRAVEL="--timetravel=604800000000"
 
 echo "Launching exchange 1 week in the future"
 kill -TERM $EXCHANGE_PID
-kill -TERM $DENOM_HELPER_PID
+kill -TERM $RSA_DENOM_HELPER_PID
+kill -TERM $CS_DENOM_HELPER_PID
 kill -TERM $SIGNKEY_HELPER_PID
 taler-exchange-secmod-eddsa $TIMETRAVEL -c $CONF 2> taler-exchange-secmod-eddsa.log &
 SIGNKEY_HELPER_PID=$!
 taler-exchange-secmod-rsa $TIMETRAVEL -c $CONF 2> taler-exchange-secmod-rsa.log &
-DENOM_HELPER_PID=$!
+RSA_DENOM_HELPER_PID=$!
+taler-exchange-secmod-cs $TIMETRAVEL -c $CONF 2> taler-exchange-secmod-cs.log &
+CS_DENOM_HELPER_PID=$!
 taler-exchange-httpd $TIMETRAVEL -c $CONF 2> taler-exchange-httpd.log &
 export EXCHANGE_PID=$!
 

src/auditor/report-lib.c

@@ -172,7 +172,7 @@ add_denomination (
 
 enum GNUNET_DB_QueryStatus
 TALER_ARL_get_denomination_info_by_hash (
-  const struct TALER_DenominationHash *dh,
+  const struct TALER_DenominationHashP *dh,
   const struct TALER_DenominationKeyValidityPS **issue)
 {
   enum GNUNET_DB_QueryStatus qs;
@@ -186,6 +186,7 @@ TALER_ARL_get_denomination_info_by_hash (
                                                    NULL);
     if (0 > qs)
     {
+      GNUNET_break (0);
       *issue = NULL;
       return qs;
     }
@@ -211,6 +212,7 @@ TALER_ARL_get_denomination_info_by_hash (
                                                &issue);
     if (qs <= 0)
     {
+      GNUNET_break (qs >= 0);
       if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs)
         GNUNET_log (GNUNET_ERROR_TYPE_INFO,
                     "Denomination %s not found\n",
@@ -245,9 +247,9 @@ enum GNUNET_DB_QueryStatus
 TALER_ARL_get_denomination_info (
   const struct TALER_DenominationPublicKey *denom_pub,
   const struct TALER_DenominationKeyValidityPS **issue,
-  struct TALER_DenominationHash *dh)
+  struct TALER_DenominationHashP *dh)
 {
-  struct TALER_DenominationHash hc;
+  struct TALER_DenominationHashP hc;
 
   if (NULL == dh)
     dh = &hc;
@@ -558,7 +560,7 @@ TALER_ARL_init (const struct GNUNET_CONFIGURATION_Handle *c)
                                "BASE_URL");
     return GNUNET_SYSERR;
   }
-  if (GNUNET_YES == GNUNET_is_zero (&TALER_ARL_master_pub))
+  if (GNUNET_is_zero (&TALER_ARL_master_pub))
   {
     /* -m option not given, try configuration */
     char *master_public_key_str;
@@ -596,47 +598,16 @@ TALER_ARL_init (const struct GNUNET_CONFIGURATION_Handle *c)
               "Taler auditor running for exchange master public key %s\n",
               TALER_B2S (&TALER_ARL_master_pub));
 
-  if (GNUNET_YES == GNUNET_is_zero (&TALER_ARL_auditor_pub))
+  if (GNUNET_is_zero (&TALER_ARL_auditor_pub))
   {
-    /* try loading private key and deriving public key */
-    char *fn;
-
-    if (GNUNET_OK ==
-        GNUNET_CONFIGURATION_get_value_filename (c,
-                                                 "auditor",
-                                                 "AUDITOR_PRIV_FILE",
-                                                 &fn))
-    {
-      struct TALER_AuditorPrivateKeyP auditor_priv;
-
-      if (GNUNET_OK ==
-          GNUNET_CRYPTO_eddsa_key_from_file (fn,
-                                             GNUNET_NO, /* do NOT create it! */
-                                             &auditor_priv.eddsa_priv))
-      {
-        GNUNET_CRYPTO_eddsa_key_get_public (&auditor_priv.eddsa_priv,
-                                            &TALER_ARL_auditor_pub.eddsa_pub);
-      }
-      GNUNET_free (fn);
-    }
-  }
-
-  if (GNUNET_YES == GNUNET_is_zero (&TALER_ARL_auditor_pub))
-  {
-    /* private key not available, try configuration for public key */
     char *auditor_public_key_str;
 
-    if (GNUNET_OK !=
+    if (GNUNET_OK ==
         GNUNET_CONFIGURATION_get_value_string (c,
                                                "auditor",
                                                "PUBLIC_KEY",
                                                &auditor_public_key_str))
     {
-      GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                                 "auditor",
-                                 "PUBLIC_KEY");
-      return GNUNET_SYSERR;
-    }
       if (GNUNET_OK !=
           GNUNET_CRYPTO_eddsa_public_key_from_string (
             auditor_public_key_str,
@@ -652,6 +623,44 @@ TALER_ARL_init (const struct GNUNET_CONFIGURATION_Handle *c)
       }
       GNUNET_free (auditor_public_key_str);
     }
+  }
+
+  if (GNUNET_is_zero (&TALER_ARL_auditor_pub))
+  {
+    /* public key not configured */
+    /* try loading private key and deriving public key */
+    char *fn;
+
+    if (GNUNET_OK ==
+        GNUNET_CONFIGURATION_get_value_filename (c,
+                                                 "auditor",
+                                                 "AUDITOR_PRIV_FILE",
+                                                 &fn))
+    {
+      struct TALER_AuditorPrivateKeyP auditor_priv;
+
+      GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                  "Loading offline private key from `%s' to get auditor public key\n",
+                  fn);
+      if (GNUNET_OK ==
+          GNUNET_CRYPTO_eddsa_key_from_file (fn,
+                                             GNUNET_NO, /* do NOT create it! */
+                                             &auditor_priv.eddsa_priv))
+      {
+        GNUNET_CRYPTO_eddsa_key_get_public (&auditor_priv.eddsa_priv,
+                                            &TALER_ARL_auditor_pub.eddsa_pub);
+      }
+      GNUNET_free (fn);
+    }
+  }
+
+  if (GNUNET_is_zero (&TALER_ARL_auditor_pub))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_INFO,
+                               "auditor",
+                               "PUBLIC_KEY/AUDITOR_PRIV_FILE");
+    return GNUNET_SYSERR;
+  }
 
   if (GNUNET_OK !=
       TALER_config_get_currency (TALER_ARL_cfg,

src/auditor/report-lib.h

@@ -101,7 +101,7 @@ TALER_ARL_report (json_t *array,
  */
 enum GNUNET_DB_QueryStatus
 TALER_ARL_get_denomination_info_by_hash (
-  const struct TALER_DenominationHash *dh,
+  const struct TALER_DenominationHashP *dh,
   const struct TALER_DenominationKeyValidityPS **issue);
 
 
@@ -118,7 +118,7 @@ enum GNUNET_DB_QueryStatus
 TALER_ARL_get_denomination_info (
   const struct TALER_DenominationPublicKey *denom_pub,
   const struct TALER_DenominationKeyValidityPS **issue,
-  struct TALER_DenominationHash *dh);
+  struct TALER_DenominationHashP *dh);
 
 
 /**

src/auditor/taler-auditor-sync.c

@@ -91,6 +91,7 @@ struct Table
 static struct Table tables[] = {
   { .rt = TALER_EXCHANGEDB_RT_DENOMINATIONS},
   { .rt = TALER_EXCHANGEDB_RT_DENOMINATION_REVOCATIONS},
+  { .rt = TALER_EXCHANGEDB_RT_WIRE_TARGETS},
   { .rt = TALER_EXCHANGEDB_RT_RESERVES},
   { .rt = TALER_EXCHANGEDB_RT_RESERVES_IN},
   { .rt = TALER_EXCHANGEDB_RT_RESERVES_CLOSE},
@@ -202,20 +203,16 @@ transact (void)
     src->lookup_serial_by_table (src->cls,
                                  tables[i].rt,
                                  &tables[i].end_serial);
-  if (0 >
-      src->commit (src->cls))
-    return GNUNET_SYSERR;
+  src->rollback (src->cls);
   if (GNUNET_OK !=
-      dst->start (src->cls,
+      dst->start (dst->cls,
                   "lookup dst serials"))
     return GNUNET_SYSERR;
   for (unsigned int i = 0; ! tables[i].end; i++)
     dst->lookup_serial_by_table (dst->cls,
                                  tables[i].rt,
                                  &tables[i].start_serial);
-  if (0 >
-      dst->commit (dst->cls))
-    return GNUNET_SYSERR;
+  dst->rollback (dst->cls);
   for (unsigned int i = 0; ! tables[i].end; i++)
   {
     struct Table *table = &tables[i];

src/auditor/taler-helper-auditor-aggregation.c

@@ -390,10 +390,10 @@ struct WireCheckContext
  * @param[out] deposit_gain amount the coin contributes excluding refunds
  * @return #GNUNET_OK on success, #GNUNET_SYSERR if the transaction must fail (hard error)
  */
-static int
+static enum GNUNET_GenericReturnValue
 check_transaction_history_for_deposit (
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   const struct TALER_MerchantPublicKeyP *merchant_pub,
   const struct TALER_DenominationKeyValidityPS *issue,
   const struct TALER_EXCHANGEDB_TransactionList *tl_head,
@@ -683,6 +683,7 @@ check_transaction_history_for_deposit (
  * @param rowid which row in the table is the information from (for diagnostics)
  * @param merchant_pub public key of the merchant (should be same for all callbacks with the same @e cls)
  * @param account_pay_uri where did we transfer the funds?
+ * @param h_payto hash over @a account_payto_uri as it is in the DB
  * @param exec_time execution time of the wire transfer (should be same for all callbacks with the same @e cls)
  * @param h_contract_terms which proposal was this payment about
  * @param denom_pub denomination of @a coin_pub
@@ -698,8 +699,9 @@ wire_transfer_information_cb (
   uint64_t rowid,
   const struct TALER_MerchantPublicKeyP *merchant_pub,
   const char *account_pay_uri,
+  const struct TALER_PaytoHashP *h_payto,
   struct GNUNET_TIME_Timestamp exec_time,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   const struct TALER_DenominationPublicKey *denom_pub,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   const struct TALER_Amount *coin_value,
@@ -712,7 +714,18 @@ wire_transfer_information_cb (
   struct TALER_EXCHANGEDB_TransactionList *tl;
   struct TALER_CoinPublicInfo coin;
   enum GNUNET_DB_QueryStatus qs;
+  struct TALER_PaytoHashP hpt;
 
+  TALER_payto_hash (account_pay_uri,
+                    &hpt);
+  if (0 !=
+      GNUNET_memcmp (&hpt,
+                     h_payto))
+  {
+    report_row_inconsistency ("wire_targets",
+                              rowid,
+                              "h-payto does not match payto URI");
+  }
   /* Obtain coin's transaction history */
   qs = TALER_ARL_edb->get_coin_transactions (TALER_ARL_edb->cls,
                                              coin_pub,

src/auditor/taler-helper-auditor-coins.c

@@ -673,7 +673,7 @@ struct CoinContext
  * @return transaction status code
  */
 static enum GNUNET_DB_QueryStatus
-init_denomination (const struct TALER_DenominationHash *denom_hash,
+init_denomination (const struct TALER_DenominationHashP *denom_hash,
                    struct DenominationSummary *ds)
 {
   enum GNUNET_DB_QueryStatus qs;
@@ -760,7 +760,7 @@ init_denomination (const struct TALER_DenominationHash *denom_hash,
 static struct DenominationSummary *
 get_denomination_summary (struct CoinContext *cc,
                           const struct TALER_DenominationKeyValidityPS *issue,
-                          const struct TALER_DenominationHash *dh)
+                          const struct TALER_DenominationHashP *dh)
 {
   struct DenominationSummary *ds;
 
@@ -802,7 +802,7 @@ sync_denomination (void *cls,
                    void *value)
 {
   struct CoinContext *cc = cls;
-  struct TALER_DenominationHash denom_h = {
+  struct TALER_DenominationHashP denom_h = {
     .hash = *denom_hash
   };
   struct DenominationSummary *ds = value;
@@ -963,7 +963,7 @@ sync_denomination (void *cls,
 static enum GNUNET_GenericReturnValue
 withdraw_cb (void *cls,
              uint64_t rowid,
-             const struct TALER_BlindedCoinHash *h_blind_ev,
+             const struct TALER_BlindedCoinHashP *h_blind_ev,
              const struct TALER_DenominationPublicKey *denom_pub,
              const struct TALER_ReservePublicKeyP *reserve_pub,
              const struct TALER_ReserveSignatureP *reserve_sig,
@@ -972,7 +972,7 @@ withdraw_cb (void *cls,
 {
   struct CoinContext *cc = cls;
   struct DenominationSummary *ds;
-  struct TALER_DenominationHash dh;
+  struct TALER_DenominationHashP dh;
   const struct TALER_DenominationKeyValidityPS *issue;
   struct TALER_Amount value;
   enum GNUNET_DB_QueryStatus qs;
@@ -1275,7 +1275,7 @@ refresh_session_cb (void *cls,
 
   /* verify melt signature */
   {
-    struct TALER_DenominationHash h_denom_pub;
+    struct TALER_DenominationHashP h_denom_pub;
     struct TALER_Amount fee_refresh;
 
     TALER_denom_pub_hash (denom_pub,
@@ -1611,8 +1611,8 @@ deposit_cb (void *cls,
 
   /* Verify deposit signature */
   {
-    struct TALER_MerchantWireHash h_wire;
-    struct TALER_DenominationHash h_denom_pub;
+    struct TALER_MerchantWireHashP h_wire;
+    struct TALER_DenominationHashP h_denom_pub;
     struct TALER_Amount deposit_fee;
 
     TALER_denom_pub_hash (denom_pub,
@@ -1761,7 +1761,7 @@ refund_cb (void *cls,
            const struct TALER_CoinSpendPublicKeyP *coin_pub,
            const struct TALER_MerchantPublicKeyP *merchant_pub,
            const struct TALER_MerchantSignatureP *merchant_sig,
-           const struct TALER_PrivateContractHash *h_contract_terms,
+           const struct TALER_PrivateContractHashP *h_contract_terms,
            uint64_t rtransaction_id,
            const struct TALER_Amount *amount_with_fee)
 {
@@ -2089,7 +2089,7 @@ recoup_refresh_cb (void *cls,
                    struct GNUNET_TIME_Timestamp timestamp,
                    const struct TALER_Amount *amount,
                    const struct TALER_CoinSpendPublicKeyP *old_coin_pub,
-                   const struct TALER_DenominationHash *old_denom_pub_hash,
+                   const struct TALER_DenominationHashP *old_denom_pub_hash,
                    const struct TALER_CoinPublicInfo *coin,
                    const struct TALER_DenominationPublicKey *denom_pub,
                    const struct TALER_CoinSpendSignatureP *coin_sig,
@@ -2194,7 +2194,12 @@ check_denomination (
                                                 &issue->denom_hash,
                                                 &TALER_ARL_auditor_pub,
                                                 &auditor_sig);
-  if (0 >= qs)
+  if (0 > qs)
+  {
+    GNUNET_break (0);
+    return; /* skip! */
+  }
+  if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs)
   {
     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                 "Encountered denomination `%s' (%s) valid from %s (%llu-%llu) that this auditor is not auditing!\n",

src/auditor/taler-helper-auditor-reserves.c

@@ -491,7 +491,7 @@ handle_reserve_in (void *cls,
 static enum GNUNET_GenericReturnValue
 handle_reserve_out (void *cls,
                     uint64_t rowid,
-                    const struct TALER_BlindedCoinHash *h_blind_ev,
+                    const struct TALER_BlindedCoinHashP *h_blind_ev,
                     const struct TALER_DenominationPublicKey *denom_pub,
                     const struct TALER_ReservePublicKeyP *reserve_pub,
                     const struct TALER_ReserveSignatureP *reserve_sig,
@@ -508,7 +508,7 @@ handle_reserve_out (void *cls,
   struct GNUNET_TIME_Timestamp valid_start;
   struct GNUNET_TIME_Timestamp expire_withdraw;
   enum GNUNET_DB_QueryStatus qs;
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   /* should be monotonically increasing */
   GNUNET_assert (rowid >= ppr.last_reserve_out_serial_id);

src/auditor/test-auditor.sh

@@ -866,10 +866,10 @@ function test_13() {
 
 echo "===========13: wrong melt signature ==========="
 # Modify denom_sig, so it is wrong
-COIN_ID=`echo "SELECT old_known_coin_id FROM refresh_commitments LIMIT 1;"  | psql $DB -Aqt`
-OLD_SIG=`echo "SELECT old_coin_sig FROM refresh_commitments WHERE old_known_coin_id='$COIN_ID';" | psql $DB -Aqt`
+COIN_PUB=`echo "SELECT old_coin_pub FROM refresh_commitments LIMIT 1;"  | psql $DB -Aqt`
+OLD_SIG=`echo "SELECT old_coin_sig FROM refresh_commitments WHERE old_known_pub='$COIN_PUB';" | psql $DB -Aqt`
 NEW_SIG="\xba588af7c13c477dca1ac458f65cc484db8fba53b969b873f4353ecbd815e6b4c03f42c0cb63a2b609c2d726e612fd8e0c084906a41f409b6a23a08a83c89a02"
-echo "UPDATE refresh_commitments SET old_coin_sig='$NEW_SIG' WHERE old_known_coin_id='$COIN_ID'" | psql -Aqt $DB
+echo "UPDATE refresh_commitments SET old_coin_sig='$NEW_SIG' WHERE old_coin_pub='$COIN_PUB'" | psql -Aqt $DB
 
 run_audit
 
@@ -943,42 +943,27 @@ fi
 }
 
 
-
-# Test where h_wire in the deposit table is wrong
+# Test where salt in the deposit table is wrong
 function test_15() {
-echo "===========15: deposit wire hash wrong================="
+echo "===========15: deposit wire salt wrong================="
 
-# Check wire transfer lag reported (no aggregator!)
+# Modify wire_salt hash, so it is inconsistent
+SALT=`echo "SELECT wire_salt FROM deposits WHERE deposit_serial_id=1;" | psql -Aqt $DB`
+echo "UPDATE deposits SET wire_salt='\x1197cd7f7b0e13ab1905fedb36c536a2' WHERE deposit_serial_id=1;" | psql -Aqt $DB
 
-# NOTE: This test is EXPECTED to fail for ~1h after
-# re-generating the test database as we do not
-# report lag of less than 1h (see GRACE_PERIOD in
-# taler-helper-auditor-wire.c)
-if [ $DATABASE_AGE -gt 3600 ]
+run_audit
+
+echo -n "Testing inconsistency detection... "
+OP=`jq -r .bad_sig_losses[0].operation < test-audit-coins.json`
+if test "x$OP" != "xdeposit"
 then
-
-    # Modify h_wire hash, so it is inconsistent with 'wire'
-    echo "UPDATE deposits SET h_wire='\x973e52d193a357940be9ef2939c19b0575ee1101f52188c3c01d9005b7d755c397e92624f09cfa709104b3b65605fe5130c90d7e1b7ee30f8fc570f39c16b853' WHERE deposit_serial_id=1" | psql -Aqt $DB
-
-    # The auditor checks h_wire consistency only for
-    # coins where the wire transfer has happened, hence
-    # run aggregator first to get this test to work.
-    run_audit aggregator
-
-    echo -n "Testing inconsistency detection... "
-    TABLE=`jq -r .row_inconsistencies[0].table < test-audit-aggregation.json`
-    if test "x$TABLE" != "xaggregation" -a "x$TABLE" != "xdeposits"
-    then
-        exit_fail "Reported table wrong: $TABLE"
-    fi
-    echo PASS
-
-    # cannot easily undo aggregator, hence full reload
-    full_reload
-
-else
-    echo "Test skipped (database too new)"
+    exit_fail "Reported operation wrong: $OP"
 fi
+echo PASS
+
+# Restore DB
+echo "UPDATE deposits SET wire_salt='$SALT' WHERE deposit_serial_id=1;" | psql -Aqt $DB
+
 }
 
 
@@ -1181,14 +1166,14 @@ then
 
     OLD_TIME=`echo "SELECT execution_date FROM reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
     OLD_VAL=`echo "SELECT credit_val FROM reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
-    RES_UUID=`echo "SELECT reserve_uuid FROM reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
-    OLD_EXP=`echo "SELECT expiration_date FROM reserves WHERE reserve_uuid='${RES_UUID}';" | psql $DB -Aqt`
+    RES_PUB=`echo "SELECT reserve_pub FROM reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
+    OLD_EXP=`echo "SELECT expiration_date FROM reserves WHERE reserve_pub='${RES_PUB}';" | psql $DB -Aqt`
     VAL_DELTA=1
     NEW_TIME=`expr $OLD_TIME - 3024000000000 || true`  # 5 weeks
     NEW_EXP=`expr $OLD_EXP - 3024000000000 || true`  # 5 weeks
     NEW_CREDIT=`expr $OLD_VAL + $VAL_DELTA || true`
     echo "UPDATE reserves_in SET execution_date='${NEW_TIME}',credit_val=${NEW_CREDIT} WHERE reserve_in_serial_id=1;" | psql -Aqt $DB
-    echo "UPDATE reserves SET current_balance_val=${VAL_DELTA}+current_balance_val,expiration_date='${NEW_EXP}' WHERE reserve_uuid='${RES_UUID}';" | psql -Aqt $DB
+    echo "UPDATE reserves SET current_balance_val=${VAL_DELTA}+current_balance_val,expiration_date='${NEW_EXP}' WHERE reserve_pub='${RES_PUB}';" | psql -Aqt $DB
 
     # Need to run with the aggregator so the reserve closure happens
     run_audit aggregator
@@ -1219,11 +1204,11 @@ echo "===========20: reserve closure missing ================="
 
 OLD_TIME=`echo "SELECT execution_date FROM reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
 OLD_VAL=`echo "SELECT credit_val FROM reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
-RES_UUID=`echo "SELECT reserve_uuid FROM reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
+RES_PUB=`echo "SELECT reserve_pub FROM reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
 NEW_TIME=`expr $OLD_TIME - 3024000000000 || true`  # 5 weeks
 NEW_CREDIT=`expr $OLD_VAL + 100 || true`
 echo "UPDATE reserves_in SET execution_date='${NEW_TIME}',credit_val=${NEW_CREDIT} WHERE reserve_in_serial_id=1;" | psql -Aqt $DB
-echo "UPDATE reserves SET current_balance_val=100+current_balance_val WHERE reserve_uuid='${RES_UUID}';" | psql -Aqt $DB
+echo "UPDATE reserves SET current_balance_val=100+current_balance_val WHERE reserve_pub='${RES_PUB}';" | psql -Aqt $DB
 
 # This time, run without the aggregator so the reserve closure is skipped!
 run_audit
@@ -1240,7 +1225,7 @@ fi
 
 # Undo
 echo "UPDATE reserves_in SET execution_date='${OLD_TIME}',credit_val=${OLD_VAL} WHERE reserve_in_serial_id=1;" | psql -Aqt $DB
-echo "UPDATE reserves SET current_balance_val=current_balance_val-100 WHERE reserve_uuid='${RES_UUID}';" | psql -Aqt $DB
+echo "UPDATE reserves SET current_balance_val=current_balance_val-100 WHERE reserve_pub='${RES_PUB}';" | psql -Aqt $DB
 
 }
 
@@ -1259,19 +1244,18 @@ then
 
     OLD_TIME=`echo "SELECT execution_date FROM reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
     OLD_VAL=`echo "SELECT credit_val FROM reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
-    RES_UUID=`echo "SELECT reserve_uuid FROM reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
-    OLD_EXP=`echo "SELECT expiration_date FROM reserves WHERE reserve_uuid='${RES_UUID}';" | psql $DB -Aqt`
+    RES_PUB=`echo "SELECT reserve_pub FROM reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
+    OLD_EXP=`echo "SELECT expiration_date FROM reserves WHERE reserve_pub='${RES_PUB}';" | psql $DB -Aqt`
     VAL_DELTA=1
     NEW_TIME=`expr $OLD_TIME - 3024000000000 || true`  # 5 weeks
     NEW_EXP=`expr $OLD_EXP - 3024000000000 || true`  # 5 weeks
     NEW_CREDIT=`expr $OLD_VAL + $VAL_DELTA || true`
     echo "UPDATE reserves_in SET execution_date='${NEW_TIME}',credit_val=${NEW_CREDIT} WHERE reserve_in_serial_id=1;" | psql -Aqt $DB
-    echo "UPDATE reserves SET current_balance_val=${VAL_DELTA}+current_balance_val,expiration_date='${NEW_EXP}' WHERE reserve_uuid='${RES_UUID}';" | psql -Aqt $DB
+    echo "UPDATE reserves SET current_balance_val=${VAL_DELTA}+current_balance_val,expiration_date='${NEW_EXP}' WHERE reserve_pub='${RES_PUB}';" | psql -Aqt $DB
 
     # Need to first run the aggregator so the transfer is marked as done exists
     pre_audit aggregator
 
-
     # remove transaction from bank DB
     echo "DELETE FROM app_banktransaction WHERE debit_account_id=2 AND amount='TESTKUDOS:${VAL_DELTA}';" | psql -Aqt $DB
 
@@ -1312,7 +1296,7 @@ S_DENOM=`echo 'SELECT denominations_serial FROM reserves_out LIMIT 1;' | psql $D
 OLD_START=`echo "SELECT valid_from FROM denominations WHERE denominations_serial='${S_DENOM}';" | psql $DB -Aqt`
 OLD_WEXP=`echo "SELECT expire_withdraw FROM denominations WHERE denominations_serial='${S_DENOM}';" | psql $DB -Aqt`
 # Basically expires 'immediately', so that the withdraw must have been 'invalid'
-NEW_WEXP=`expr $OLD_START + 1 || true`
+NEW_WEXP=$OLD_START
 
 echo "UPDATE denominations SET expire_withdraw=${NEW_WEXP} WHERE denominations_serial='${S_DENOM}';" | psql -Aqt $DB
 
@@ -1320,7 +1304,7 @@ echo "UPDATE denominations SET expire_withdraw=${NEW_WEXP} WHERE denominations_s
 run_audit
 
 echo -n "Testing inconsistency detection... "
-jq -e .denomination_key_validity_withdraw_inconsistencies[0] < test-audit-reserves.json > /dev/null || exit_fail "Denomination key withdraw inconsistency not detected"
+jq -e .denomination_key_validity_withdraw_inconsistencies[0] < test-audit-reserves.json > /dev/null || exit_fail "Denomination key withdraw inconsistency for $S_DENOM not detected"
 
 echo PASS
 
@@ -1793,6 +1777,50 @@ fi
 
 
 
+# Test where h_payto in the wire_targets table is wrong
+function test_33() {
+echo "===========33: h_payto wrong================="
+
+# Check wire transfer lag reported (no aggregator!)
+# NOTE: this test is BRAND NEW and expected
+# to fail until we implement the check in the auditor!
+
+# NOTE: This test is EXPECTED to fail for ~1h after
+# re-generating the test database as we do not
+# report lag of less than 1h (see GRACE_PERIOD in
+# taler-helper-auditor-wire.c)
+if [ $DATABASE_AGE -gt 3600 ]
+then
+
+    # Modify h_payto hash, so it is inconsistent with 'wire'
+    WTSID=`echo "SELECT wire_target_serial_id FROM deposits WHERE deposit_serial_id=1;" | psql -Aqt $DB`
+    echo "UPDATE wire_targets SET h_payto='\x973e52d193a357940be9ef2939c19b0575ee1101f52188c3c01d9005b7d755c397e92624f09cfa709104b3b65605fe5130c90d7e1b7ee30f8fc570f39c16b853' WHERE wire_target_serial_id=$WTSID" | psql -Aqt $DB
+
+    # The auditor checks h_wire consistency only for
+    # coins where the wire transfer has happened, hence
+    # run aggregator first to get this test to work.
+    run_audit aggregator
+
+    echo -n "Testing inconsistency detection... "
+    TABLE=`jq -r .row_inconsistencies[0].table < test-audit-aggregation.json`
+    if test "x$TABLE" != "xwire_targets"
+    then
+        exit_fail "Reported table wrong: $TABLE"
+    fi
+    echo PASS
+
+    # cannot easily undo aggregator, hence full reload
+    full_reload
+
+else
+    echo "Test skipped (database too new)"
+fi
+}
+
+
+
+
+
 # *************** Main test loop starts here **************
 
 
@@ -1840,10 +1868,10 @@ check_with_database()
 
 # ####### Setup globals ######
 # Postgres database to use
-DB=taler-auditor-test
+DB=auditor-basedb
 
 # Configuration file to use
-CONF=test-auditor.conf
+CONF=${DB}.conf
 
 # test required commands exist
 echo "Testing for jq"

src/auditor/test-revocation.sh

@@ -482,11 +482,11 @@ check_with_database()
 # *************** Main logic starts here **************
 
 # ####### Setup globals ######
-# Postgres database to use (must match test-auditor.conf)
+# Postgres database to use (must match revoke-basedb.conf)
 DB=taler-auditor-test
 
 # Configuration file to use
-CONF=test-auditor.conf
+CONF=revoke-basedb.conf
 
 # test required commands exist
 echo "Testing for jq"

src/auditor/test-sync.sh

@@ -16,9 +16,10 @@ echo -n "."
 psql talercheck-in < auditor-basedb.sql >/dev/null 2> /dev/null
 
 echo -n "."
-taler-auditor-sync -s test-sync-in.conf -d test-sync-out.conf -t
+~/bin/taler-auditor-sync -s test-sync-in.conf -d test-sync-out.conf -t
 
-for table in denominations denomination_revocations reserves reserves_in reserves_close reserves_out auditors auditor_denom_sigs exchange_sign_keys signkey_revocations known_coins refresh_commitments refresh_revealed_coins refresh_transfer_keys deposits refunds wire_out aggregation_tracking wire_fee recoup recoup_refresh
+# cs_nonce_locks excluded: no point
+for table in denominations denomination_revocations wire_targets reserves reserves_in reserves_close reserves_out auditors auditor_denom_sigs exchange_sign_keys signkey_revocations extensions extension_details known_coins refresh_commitments refresh_revealed_coins refresh_transfer_keys deposits refunds wire_out aggregation_tracking wire_fee recoup recoup_refresh
 do
     echo -n "."
     CIN=`echo "SELECT COUNT(*) FROM $table" | psql talercheck-in -Aqt`

src/auditordb/plugin_auditordb_postgres.c

@@ -2163,7 +2163,7 @@ postgres_get_wire_fee_summary (void *cls,
 static enum GNUNET_DB_QueryStatus
 postgres_insert_denomination_balance (
   void *cls,
-  const struct TALER_DenominationHash *denom_pub_hash,
+  const struct TALER_DenominationHashP *denom_pub_hash,
   const struct TALER_Amount *denom_balance,
   const struct TALER_Amount *denom_loss,
   const struct TALER_Amount *denom_risk,
@@ -2203,7 +2203,7 @@ postgres_insert_denomination_balance (
 static enum GNUNET_DB_QueryStatus
 postgres_update_denomination_balance (
   void *cls,
-  const struct TALER_DenominationHash *denom_pub_hash,
+  const struct TALER_DenominationHashP *denom_pub_hash,
   const struct TALER_Amount *denom_balance,
   const struct TALER_Amount *denom_loss,
   const struct TALER_Amount *denom_risk,
@@ -2240,9 +2240,9 @@ postgres_update_denomination_balance (
  * @return transaction status code
  */
 static enum GNUNET_DB_QueryStatus
-postgres_get_denomination_balance (void *cls,
-                                   const struct
-                                   TALER_DenominationHash *denom_pub_hash,
+postgres_get_denomination_balance (
+  void *cls,
+  const struct TALER_DenominationHashP *denom_pub_hash,
   struct TALER_Amount *denom_balance,
   struct TALER_Amount *denom_loss,
   struct TALER_Amount *denom_risk,
@@ -2439,7 +2439,7 @@ static enum GNUNET_DB_QueryStatus
 postgres_insert_historic_denom_revenue (
   void *cls,
   const struct TALER_MasterPublicKeyP *master_pub,
-  const struct TALER_DenominationHash *denom_pub_hash,
+  const struct TALER_DenominationHashP *denom_pub_hash,
   struct GNUNET_TIME_Timestamp revenue_timestamp,
   const struct TALER_Amount *revenue_balance,
   const struct TALER_Amount *loss_balance)
@@ -2506,7 +2506,7 @@ historic_denom_revenue_cb (void *cls,
 
   for (unsigned int i = 0; i < num_results; i++)
   {
-    struct TALER_DenominationHash denom_pub_hash;
+    struct TALER_DenominationHashP denom_pub_hash;
     struct GNUNET_TIME_Timestamp revenue_timestamp;
     struct TALER_Amount revenue_balance;
     struct TALER_Amount loss;

src/auditordb/test_auditordb.c

@@ -130,10 +130,10 @@ run (void *cls)
 
   struct TALER_MasterPublicKeyP master_pub;
   struct TALER_ReservePublicKeyP reserve_pub;
-  struct TALER_DenominationHash rnd_hash;
+  struct TALER_DenominationHashP rnd_hash;
   struct TALER_DenominationPrivateKey denom_priv;
   struct TALER_DenominationPublicKey denom_pub;
-  struct TALER_DenominationHash denom_pub_hash;
+  struct TALER_DenominationHashP denom_pub_hash;
   struct GNUNET_TIME_Timestamp now;
   struct GNUNET_TIME_Timestamp past;
   struct GNUNET_TIME_Timestamp future;
@@ -488,7 +488,7 @@ run (void *cls)
   int
   select_historic_denom_revenue_result (
     void *cls,
-    const struct TALER_DenominationHash *denom_pub_hash2,
+    const struct TALER_DenominationHashP *denom_pub_hash2,
     struct GNUNET_TIME_Timestamp revenue_timestamp2,
     const struct TALER_Amount *revenue_balance2,
     const struct TALER_Amount *loss2)

src/bank-lib/bank_api_common.c

@@ -23,11 +23,11 @@
 #include "bank_api_common.h"
 
 
-int
+enum GNUNET_GenericReturnValue
 TALER_BANK_setup_auth_ (CURL *easy,
                         const struct TALER_BANK_AuthenticationData *auth)
 {
-  int ret;
+  enum GNUNET_GenericReturnValue ret;
 
   ret = GNUNET_OK;
   switch (auth->method)

src/bank-lib/taler-fakebank-run.c

@@ -101,7 +101,7 @@ run (void *cls,
      const struct GNUNET_CONFIGURATION_Handle *cfg)
 {
   unsigned long long port = 8082;
-  unsigned long long ram = 1024 * 1024 * 128; /* 128 M entries */
+  unsigned long long ram = 1024 * 128; /* 128 k entries */
   char *currency_string;
 
   (void) cls;

src/benchmark/Makefile.am

@@ -37,6 +37,7 @@ taler_bank_benchmark_LDADD = \
   $(top_builddir)/src/exchangedb/libtalerexchangedb.la \
   $(top_builddir)/src/json/libtalerjson.la \
   $(top_builddir)/src/util/libtalerutil.la \
+  $(top_builddir)/src/extensions/libtalerextensions.la \
   -lgnunetjson \
   -lgnunetcurl \
   -lgnunetutil \

src/benchmark/taler-aggregator-benchmark.c

@@ -76,7 +76,7 @@ static struct GNUNET_SCHEDULER_Task *task;
 /**
  * Hash of the denomination.
  */
-static struct TALER_DenominationHash h_denom_pub;
+static struct TALER_DenominationHashP h_denom_pub;
 
 /**
  * "signature" to use for the coin(s).
@@ -223,7 +223,7 @@ struct Merchant
    * the exchange from the detailed wire data provided by the
    * merchant.
    */
-  struct TALER_MerchantWireHash h_wire;
+  struct TALER_MerchantWireHashP h_wire;
 
   /**
    * Salt used when computing @e h_wire.
@@ -249,7 +249,7 @@ struct Deposit
    * Hash over the proposal data between merchant and customer
    * (remains unknown to the Exchange).
    */
-  struct TALER_PrivateContractHash h_contract_terms;
+  struct TALER_PrivateContractHashP h_contract_terms;
 
 };
 
@@ -299,7 +299,7 @@ add_deposit (const struct Merchant *m)
   struct Deposit d;
   struct TALER_EXCHANGEDB_Deposit deposit;
   uint64_t known_coin_id;
-  struct TALER_DenominationHash dph;
+  struct TALER_DenominationHashP dph;
   struct TALER_AgeCommitmentHash agh;
 
   RANDOMIZE (&d.coin.coin_pub);
@@ -487,7 +487,7 @@ run (void *cls,
   {
     struct TALER_DenominationPrivateKey pk;
     struct TALER_DenominationPublicKey denom_pub;
-    struct TALER_CoinPubHash c_hash;
+    struct TALER_CoinPubHashP c_hash;
     struct TALER_PlanchetDetail pd;
     struct TALER_BlindedDenominationSignature bds;
     struct TALER_PlanchetMasterSecretP ps;
@@ -528,23 +528,23 @@ run (void *cls,
                                            &bks);
 
     {
-      uint32_t seed;
+      uint64_t seed;
       struct TALER_AgeMask mask = {
-        .mask = 1 || 1 << 8 || 1 << 12 || 1 << 16 || 1 << 18
+        .bits = 1 || 1 << 8 || 1 << 12 || 1 << 16 || 1 << 18
       };
-      struct TALER_AgeCommitment ac = {0};
+      struct TALER_AgeCommitmentProof acp = {0};
 
-      seed = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
-                                       UINT32_MAX);
+      seed = GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                       UINT64_MAX);
 
       GNUNET_assert (GNUNET_OK ==
                      TALER_age_restriction_commit (
                        &mask,
                        13,
                        seed,
-                       &ac));
+                       &acp));
 
-      TALER_age_commitment_hash (&ac, &hac);
+      TALER_age_commitment_hash (&acp.commitment, &hac);
     }
 
     GNUNET_assert (GNUNET_OK ==
@@ -558,6 +558,7 @@ run (void *cls,
     GNUNET_assert (GNUNET_OK ==
                    TALER_denom_sign_blinded (&bds,
                                              &pk,
+                                             false,
                                              &pd.blinded_planchet));
     TALER_blinded_planchet_free (&pd.blinded_planchet);
     GNUNET_assert (GNUNET_OK ==

src/exchange-tools/Makefile.am

@@ -39,6 +39,7 @@ taler_auditor_offline_LDADD = \
   $(top_builddir)/src/lib/libtalerexchange.la \
   $(top_builddir)/src/json/libtalerjson.la \
   $(top_builddir)/src/util/libtalerutil.la \
+  $(top_builddir)/src/extensions/libtalerextensions.la \
   -lgnunetjson \
   -lgnunetcurl \
   -ljansson \

src/exchange-tools/taler-auditor-offline.c

@@ -430,7 +430,7 @@ upload_denomination_add (const char *exchange_url,
                          const json_t *value)
 {
   struct TALER_AuditorSignatureP auditor_sig;
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
   struct DenominationAddRequest *dar;
   const char *err_name;
   unsigned int err_line;
@@ -781,7 +781,7 @@ show_denomkeys (const json_t *denomkeys)
       GNUNET_JSON_spec_end ()
     };
     struct GNUNET_TIME_Relative duration;
-    struct TALER_DenominationHash h_denom_pub;
+    struct TALER_DenominationHashP h_denom_pub;
 
     if (GNUNET_OK !=
         GNUNET_JSON_parse (value,
@@ -1066,7 +1066,7 @@ sign_denomkeys (const json_t *denomkeys)
                                    &master_sig),
       GNUNET_JSON_spec_end ()
     };
-    struct TALER_DenominationHash h_denom_pub;
+    struct TALER_DenominationHashP h_denom_pub;
 
     if (GNUNET_OK !=
         GNUNET_JSON_parse (value,

src/exchange-tools/taler-exchange-offline.c

@@ -914,7 +914,7 @@ upload_denom_revocation (const char *exchange_url,
                          const json_t *value)
 {
   struct TALER_MasterSignatureP master_sig;
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
   struct DenomRevocationRequest *drr;
   const char *err_name;
   unsigned int err_line;
@@ -1800,7 +1800,7 @@ upload_extensions (const char *exchange_url,
 
   /* 2. Verify the signature */
   {
-    struct TALER_ExtensionConfigHash h_config;
+    struct TALER_ExtensionConfigHashP h_config;
 
     if (GNUNET_OK !=
         TALER_JSON_extensions_config_hash (extensions, &h_config))
@@ -2023,7 +2023,7 @@ do_upload (char *const *args)
 static void
 do_revoke_denomination_key (char *const *args)
 {
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
   struct TALER_MasterSignatureP master_sig;
 
   if (NULL != in)
@@ -2857,7 +2857,7 @@ show_denomkeys (const struct TALER_SecurityModulePublicKeyP *secm_pub_rsa,
       GNUNET_JSON_spec_end ()
     };
     struct GNUNET_TIME_Relative duration;
-    struct TALER_DenominationHash h_denom_pub;
+    struct TALER_DenominationHashP h_denom_pub;
     enum GNUNET_GenericReturnValue ok;
 
     if (GNUNET_OK !=
@@ -3260,7 +3260,7 @@ load_age_mask (const char*section_name)
   static const struct TALER_AgeMask null_mask = {0};
   enum GNUNET_GenericReturnValue ret;
 
-  if (age_mask.mask == 0)
+  if (age_mask.bits == 0)
     return null_mask;
 
   if (GNUNET_OK != (GNUNET_CONFIGURATION_have_value (
@@ -3338,7 +3338,7 @@ sign_denomkeys (const struct TALER_SecurityModulePublicKeyP *secm_pub_rsa,
       GNUNET_JSON_spec_end ()
     };
     struct GNUNET_TIME_Relative duration;
-    struct TALER_DenominationHash h_denom_pub;
+    struct TALER_DenominationHashP h_denom_pub;
 
     if (GNUNET_OK !=
         GNUNET_JSON_parse (value,
@@ -3645,7 +3645,7 @@ do_extensions_sign (char *const *args)
 {
   json_t *obj = json_object ();
   json_t *extensions = json_object ();
-  struct TALER_ExtensionConfigHash h_config;
+  struct TALER_ExtensionConfigHashP h_config;
   struct TALER_MasterSignatureP sig;
   const struct TALER_Extension *it;
 

src/exchange/taler-exchange-aggregator.c

@@ -370,7 +370,7 @@ deposit_cb (void *cls,
             const struct TALER_CoinSpendPublicKeyP *coin_pub,
             const struct TALER_Amount *amount_with_fee,
             const struct TALER_Amount *deposit_fee,
-            const struct TALER_PrivateContractHash *h_contract_terms,
+            const struct TALER_PrivateContractHashP *h_contract_terms,
             uint64_t wire_target,
             const char *payto_uri)
 {
@@ -516,7 +516,7 @@ aggregate_cb (void *cls,
               const struct TALER_CoinSpendPublicKeyP *coin_pub,
               const struct TALER_Amount *amount_with_fee,
               const struct TALER_Amount *deposit_fee,
-              const struct TALER_PrivateContractHash *h_contract_terms)
+              const struct TALER_PrivateContractHashP *h_contract_terms)
 {
   struct AggregationUnit *au = cls;
   struct TALER_Amount old;

src/exchange/taler-exchange-httpd.c

@@ -647,7 +647,7 @@ handle_post_management (struct TEH_RequestContext *rc,
   if (0 == strcmp (args[0],
                    "denominations"))
   {
-    struct TALER_DenominationHash h_denom_pub;
+    struct TALER_DenominationHashP h_denom_pub;
 
     if ( (NULL == args[0]) ||
          (NULL == args[1]) ||
@@ -794,7 +794,7 @@ handle_post_auditors (struct TEH_RequestContext *rc,
                       const char *const args[])
 {
   struct TALER_AuditorPublicKeyP auditor_pub;
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   if ( (NULL == args[0]) ||
        (NULL == args[1]) ||

src/exchange/taler-exchange-httpd_auditors.c

@@ -45,7 +45,7 @@ struct AddAuditorDenomContext
   /**
    * Denomination this is about.
    */
-  const struct TALER_DenominationHash *h_denom_pub;
+  const struct TALER_DenominationHashP *h_denom_pub;
 
   /**
    * Auditor this is about.
@@ -189,7 +189,7 @@ MHD_RESULT
 TEH_handler_auditors (
   struct MHD_Connection *connection,
   const struct TALER_AuditorPublicKeyP *auditor_pub,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const json_t *root)
 {
   struct AddAuditorDenomContext awc = {

src/exchange/taler-exchange-httpd_auditors.h

@@ -39,7 +39,7 @@ MHD_RESULT
 TEH_handler_auditors (
   struct MHD_Connection *connection,
   const struct TALER_AuditorPublicKeyP *auditor_pub,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const json_t *root);
 
 

src/exchange/taler-exchange-httpd_csr.c

@@ -78,12 +78,12 @@ TEH_handler_csr_melt (struct TEH_RequestContext *rc,
 
     {
       struct TALER_CsNonce nonces[csr_requests_num];
-      struct TALER_DenominationHash denom_pub_hashes[csr_requests_num];
+      struct TALER_DenominationHashP denom_pub_hashes[csr_requests_num];
 
       for (unsigned int i = 0; i < csr_requests_num; i++)
       {
         uint32_t coin_off;
-        struct TALER_DenominationHash *denom_pub_hash = &denom_pub_hashes[i];
+        struct TALER_DenominationHashP *denom_pub_hash = &denom_pub_hashes[i];
         struct GNUNET_JSON_Specification csr_spec[] = {
           GNUNET_JSON_spec_uint32 ("coin_offset",
                                    &coin_off),
@@ -112,7 +112,7 @@ TEH_handler_csr_melt (struct TEH_RequestContext *rc,
       for (unsigned int i = 0; i < csr_requests_num; i++)
       {
         const struct TALER_CsNonce *nonce = &nonces[i];
-        const struct TALER_DenominationHash *denom_pub_hash =
+        const struct TALER_DenominationHashP *denom_pub_hash =
           &denom_pub_hashes[i];
         struct TALER_DenominationCSPublicRPairP *r_pub
           = &ewvs[i].details.cs_values;
@@ -179,7 +179,7 @@ TEH_handler_csr_melt (struct TEH_RequestContext *rc,
 
         /* derive r_pub */
         // FIXME: bundle all requests into one derivation request (TEH_keys_..., crypto helper, security module)
-        ec = TEH_keys_denomination_cs_r_pub (denom_pub_hash,
+        ec = TEH_keys_denomination_cs_r_pub_melt (denom_pub_hash,
                                                   nonce,
                                                   r_pub);
         if (TALER_EC_NONE != ec)
@@ -228,7 +228,7 @@ TEH_handler_csr_withdraw (struct TEH_RequestContext *rc,
                           const char *const args[])
 {
   struct TALER_CsNonce nonce;
-  struct TALER_DenominationHash denom_pub_hash;
+  struct TALER_DenominationHashP denom_pub_hash;
   struct TALER_ExchangeWithdrawValues ewv = {
     .cipher = TALER_DENOMINATION_CS
   };
@@ -238,7 +238,7 @@ TEH_handler_csr_withdraw (struct TEH_RequestContext *rc,
                             sizeof (struct TALER_CsNonce)),
     GNUNET_JSON_spec_fixed ("denom_pub_hash",
                             &denom_pub_hash,
-                            sizeof (struct TALER_DenominationHash)),
+                            sizeof (struct TALER_DenominationHashP)),
     GNUNET_JSON_spec_end ()
   };
   struct TEH_DenominationKey *dk;
@@ -316,7 +316,7 @@ TEH_handler_csr_withdraw (struct TEH_RequestContext *rc,
   {
     enum TALER_ErrorCode ec;
 
-    ec = TEH_keys_denomination_cs_r_pub (&denom_pub_hash,
+    ec = TEH_keys_denomination_cs_r_pub_withdraw (&denom_pub_hash,
                                                   &nonce,
                                                   &ewv.details.cs_values);
     if (TALER_EC_NONE != ec)

src/exchange/taler-exchange-httpd_db.c

@@ -29,19 +29,6 @@
 #include "taler-exchange-httpd_responses.h"
 
 
-/**
- * How often should we retry a transaction before giving up
- * (for transactions resulting in serialization/dead locks only).
- *
- * The current value is likely too high for production. We might want to
- * benchmark good values once we have a good database setup.  The code is
- * expected to work correctly with any positive value, albeit inefficiently if
- * we too aggressively force clients to retry the HTTP request merely because
- * we have database serialization issues.
- */
-#define MAX_TRANSACTION_COMMIT_RETRIES 100
-
-
 enum GNUNET_DB_QueryStatus
 TEH_make_coin_known (const struct TALER_CoinPublicInfo *coin,
                      struct MHD_Connection *connection,
@@ -49,7 +36,7 @@ TEH_make_coin_known (const struct TALER_CoinPublicInfo *coin,
                      MHD_RESULT *mhd_ret)
 {
   enum TALER_EXCHANGEDB_CoinKnownStatus cks;
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
   struct TALER_AgeCommitmentHash age_hash;
 
   /* make sure coin is 'known' in database */

src/exchange/taler-exchange-httpd_db.h

@@ -27,6 +27,19 @@
 #include <gnunet/gnunet_mhd_compat.h>
 
 
+/**
+ * How often should we retry a transaction before giving up
+ * (for transactions resulting in serialization/dead locks only).
+ *
+ * The current value is likely too high for production. We might want to
+ * benchmark good values once we have a good database setup.  The code is
+ * expected to work correctly with any positive value, albeit inefficiently if
+ * we too aggressively force clients to retry the HTTP request merely because
+ * we have database serialization issues.
+ */
+#define MAX_TRANSACTION_COMMIT_RETRIES 100
+
+
 /**
  * Ensure coin is known in the database, and handle conflicts and errors.
  *

src/exchange/taler-exchange-httpd_deposit.c

@@ -59,9 +59,10 @@
 static MHD_RESULT
 reply_deposit_success (struct MHD_Connection *connection,
                        const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                       const struct TALER_MerchantWireHash *h_wire,
-                       const struct TALER_ExtensionContractHash *h_extensions,
-                       const struct TALER_PrivateContractHash *h_contract_terms,
+                       const struct TALER_MerchantWireHashP *h_wire,
+                       const struct TALER_ExtensionContractHashP *h_extensions,
+                       const struct
+                       TALER_PrivateContractHashP *h_contract_terms,
                        struct GNUNET_TIME_Timestamp exchange_timestamp,
                        struct GNUNET_TIME_Timestamp refund_deadline,
                        struct GNUNET_TIME_Timestamp wire_deadline,
@@ -128,7 +129,7 @@ struct DepositContext
   /**
    * Hash of the payto URI.
    */
-  struct TALER_PaytoHash h_payto;
+  struct TALER_PaytoHashP h_payto;
 
   /**
    * Row of of the coin in the known_coins table.
@@ -254,7 +255,7 @@ TEH_handler_deposit (struct MHD_Connection *connection,
                                 &deposit.wire_deadline),
     GNUNET_JSON_spec_end ()
   };
-  struct TALER_MerchantWireHash h_wire;
+  struct TALER_MerchantWireHashP h_wire;
 
   memset (&deposit,
           0,
@@ -307,6 +308,15 @@ TEH_handler_deposit (struct MHD_Connection *connection,
                                        TALER_EC_EXCHANGE_DEPOSIT_REFUND_DEADLINE_AFTER_WIRE_DEADLINE,
                                        NULL);
   }
+  if (GNUNET_TIME_absolute_is_never (deposit.wire_deadline.abs_time))
+  {
+    GNUNET_break_op (0);
+    GNUNET_JSON_parse_free (spec);
+    return TALER_MHD_reply_with_error (connection,
+                                       MHD_HTTP_BAD_REQUEST,
+                                       TALER_EC_EXCHANGE_DEPOSIT_WIRE_DEADLINE_IS_NEVER,
+                                       NULL);
+  }
   deposit.receiver_wire_account = (char *) payto_uri;
   TALER_payto_hash (payto_uri,
                     &dc.h_payto);
@@ -432,12 +442,24 @@ TEH_handler_deposit (struct MHD_Connection *connection,
     enum GNUNET_DB_QueryStatus qs;
 
     /* make sure coin is 'known' in database */
+    for (unsigned int tries = 0; tries<MAX_TRANSACTION_COMMIT_RETRIES; tries++)
+    {
       qs = TEH_make_coin_known (&deposit.coin,
                                 connection,
                                 &dc.known_coin_id,
                                 &mhd_ret);
       /* no transaction => no serialization failures should be possible */
-    GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR != qs);
+      if (GNUNET_DB_STATUS_SOFT_ERROR != qs)
+        break;
+    }
+    if (GNUNET_DB_STATUS_SOFT_ERROR == qs)
+    {
+      GNUNET_break (0);
+      return TALER_MHD_reply_with_error (connection,
+                                         MHD_HTTP_INTERNAL_SERVER_ERROR,
+                                         TALER_EC_GENERIC_DB_COMMIT_FAILED,
+                                         "make_coin_known");
+    }
     if (qs < 0)
       return mhd_ret;
   }

src/exchange/taler-exchange-httpd_deposits_get.c

@@ -47,8 +47,9 @@
  */
 static MHD_RESULT
 reply_deposit_details (struct MHD_Connection *connection,
-                       const struct TALER_PrivateContractHash *h_contract_terms,
-                       const struct TALER_MerchantWireHash *h_wire,
+                       const struct
+                       TALER_PrivateContractHashP *h_contract_terms,
+                       const struct TALER_MerchantWireHashP *h_wire,
                        const struct TALER_CoinSpendPublicKeyP *coin_pub,
                        const struct TALER_Amount *coin_contribution,
                        const struct TALER_WireTransferIdentifierRawP *wtid,

src/exchange/taler-exchange-httpd_extensions.c

@@ -131,7 +131,7 @@ extension_update_event_cb (void *cls,
   /* Special case age restriction: Update global flag and mask  */
   if (TALER_Extension_AgeRestriction == type)
   {
-    TEH_age_mask.mask = 0;
+    TEH_age_mask.bits = 0;
     TEH_age_restriction_enabled =
       TALER_extensions_age_restriction_is_enabled ();
     if (TEH_age_restriction_enabled)

src/exchange/taler-exchange-httpd_keys.c

@@ -80,7 +80,7 @@ struct HelperDenomination
   /**
    * Hash of the full denomination key.
    */
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   /**
    * Signature over this key from the security module's key.
@@ -797,7 +797,7 @@ load_age_mask (const char*section_name)
   static const struct TALER_AgeMask null_mask = {0};
   struct TALER_AgeMask age_mask = TALER_extensions_age_restriction_ageMask ();
 
-  if (age_mask.mask == 0)
+  if (age_mask.bits == 0)
     return null_mask;
 
   if (GNUNET_OK != (GNUNET_CONFIGURATION_have_value (
@@ -1295,7 +1295,7 @@ static void
 denomination_info_cb (
   void *cls,
   const struct TALER_DenominationPublicKey *denom_pub,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta,
   const struct TALER_MasterSignatureP *master_sig,
   bool recoup_possible)
@@ -1472,7 +1472,7 @@ static void
 auditor_denom_cb (
   void *cls,
   const struct TALER_AuditorPublicKeyP *auditor_pub,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_AuditorSignatureP *auditor_sig)
 {
   struct TEH_KeyStateHandle *ksh = cls;
@@ -2120,7 +2120,7 @@ finish_keys_response (struct TEH_KeyStateHandle *ksh)
          * the properties of the denomination.  Also, we build up the right
          * hash for the corresponding array. */
         if (TEH_age_restriction_enabled &&
-            (0 != dk->denom_pub.age_mask.mask))
+            (0 != dk->denom_pub.age_mask.bits))
         {
           have_age_restricted_denoms = true;
           array = age_restricted_denoms;
@@ -2386,7 +2386,8 @@ TEH_keys_get_state (void)
 
 
 struct TEH_DenominationKey *
-TEH_keys_denomination_by_hash (const struct TALER_DenominationHash *h_denom_pub,
+TEH_keys_denomination_by_hash (const struct
+                               TALER_DenominationHashP *h_denom_pub,
                                struct MHD_Connection *conn,
                                MHD_RESULT *mret)
 {
@@ -2411,7 +2412,7 @@ TEH_keys_denomination_by_hash (const struct TALER_DenominationHash *h_denom_pub,
 struct TEH_DenominationKey *
 TEH_keys_denomination_by_hash2 (
   struct TEH_KeyStateHandle *ksh,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   struct MHD_Connection *conn,
   MHD_RESULT *mret)
 {
@@ -2432,7 +2433,8 @@ TEH_keys_denomination_by_hash2 (
 
 
 enum TALER_ErrorCode
-TEH_keys_denomination_sign (const struct TALER_DenominationHash *h_denom_pub,
+TEH_keys_denomination_sign_withdraw (
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_BlindedPlanchet *bp,
   struct TALER_BlindedDenominationSignature *bs)
 {
@@ -2458,7 +2460,7 @@ TEH_keys_denomination_sign (const struct TALER_DenominationHash *h_denom_pub,
       bp->details.rsa_blinded_planchet.blinded_msg_size,
       bs);
   case TALER_DENOMINATION_CS:
-    return TALER_CRYPTO_helper_cs_sign (
+    return TALER_CRYPTO_helper_cs_sign_withdraw (
       ksh->helpers->csdh,
       &hd->h_details.h_cs,
       &bp->details.cs_blinded_planchet,
@@ -2470,8 +2472,47 @@ TEH_keys_denomination_sign (const struct TALER_DenominationHash *h_denom_pub,
 
 
 enum TALER_ErrorCode
-TEH_keys_denomination_cs_r_pub (const struct
-                                TALER_DenominationHash *h_denom_pub,
+TEH_keys_denomination_sign_melt (
+  const struct TALER_DenominationHashP *h_denom_pub,
+  const struct TALER_BlindedPlanchet *bp,
+  struct TALER_BlindedDenominationSignature *bs)
+{
+  struct TEH_KeyStateHandle *ksh;
+  struct HelperDenomination *hd;
+
+  ksh = TEH_keys_get_state ();
+  if (NULL == ksh)
+    return TALER_EC_EXCHANGE_GENERIC_KEYS_MISSING;
+  hd = GNUNET_CONTAINER_multihashmap_get (ksh->helpers->denom_keys,
+                                          &h_denom_pub->hash);
+  if (NULL == hd)
+    return TALER_EC_EXCHANGE_GENERIC_DENOMINATION_KEY_UNKNOWN;
+  if (bp->cipher != hd->denom_pub.cipher)
+    return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
+  switch (hd->denom_pub.cipher)
+  {
+  case TALER_DENOMINATION_RSA:
+    return TALER_CRYPTO_helper_rsa_sign (
+      ksh->helpers->rsadh,
+      &hd->h_details.h_rsa,
+      bp->details.rsa_blinded_planchet.blinded_msg,
+      bp->details.rsa_blinded_planchet.blinded_msg_size,
+      bs);
+  case TALER_DENOMINATION_CS:
+    return TALER_CRYPTO_helper_cs_sign_melt (
+      ksh->helpers->csdh,
+      &hd->h_details.h_cs,
+      &bp->details.cs_blinded_planchet,
+      bs);
+  default:
+    return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
+  }
+}
+
+
+enum TALER_ErrorCode
+TEH_keys_denomination_cs_r_pub_melt (
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_CsNonce *nonce,
   struct TALER_DenominationCSPublicRPairP *r_pub)
 {
@@ -2494,7 +2535,39 @@ TEH_keys_denomination_cs_r_pub (const struct
     return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
   }
 
-  return TALER_CRYPTO_helper_cs_r_derive (ksh->helpers->csdh,
+  return TALER_CRYPTO_helper_cs_r_derive_melt (ksh->helpers->csdh,
+                                               &hd->h_details.h_cs,
+                                               nonce,
+                                               r_pub);
+}
+
+
+enum TALER_ErrorCode
+TEH_keys_denomination_cs_r_pub_withdraw (
+  const struct TALER_DenominationHashP *h_denom_pub,
+  const struct TALER_CsNonce *nonce,
+  struct TALER_DenominationCSPublicRPairP *r_pub)
+{
+  struct TEH_KeyStateHandle *ksh;
+  struct HelperDenomination *hd;
+
+  ksh = TEH_keys_get_state ();
+  if (NULL == ksh)
+  {
+    return TALER_EC_EXCHANGE_GENERIC_KEYS_MISSING;
+  }
+  hd = GNUNET_CONTAINER_multihashmap_get (ksh->helpers->denom_keys,
+                                          &h_denom_pub->hash);
+  if (NULL == hd)
+  {
+    return TALER_EC_EXCHANGE_GENERIC_DENOMINATION_KEY_UNKNOWN;
+  }
+  if (TALER_DENOMINATION_CS != hd->denom_pub.cipher)
+  {
+    return TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
+  }
+
+  return TALER_CRYPTO_helper_cs_r_derive_withdraw (ksh->helpers->csdh,
                                                    &hd->h_details.h_cs,
                                                    nonce,
                                                    r_pub);
@@ -2502,7 +2575,7 @@ TEH_keys_denomination_cs_r_pub (const struct
 
 
 void
-TEH_keys_denomination_revoke (const struct TALER_DenominationHash *h_denom_pub)
+TEH_keys_denomination_revoke (const struct TALER_DenominationHashP *h_denom_pub)
 {
   struct TEH_KeyStateHandle *ksh;
   struct HelperDenomination *hd;
@@ -2825,7 +2898,7 @@ load_extension_data (const char *section_name,
 
 
 enum GNUNET_GenericReturnValue
-TEH_keys_load_fees (const struct TALER_DenominationHash *h_denom_pub,
+TEH_keys_load_fees (const struct TALER_DenominationHashP *h_denom_pub,
                     struct TALER_DenominationPublicKey *denom_pub,
                     struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta)
 {

src/exchange/taler-exchange-httpd_keys.h

@@ -49,7 +49,7 @@ struct TEH_DenominationKey
   /**
    * Hash code of the denomination public key.
    */
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   /**
    * Meta data about the type of the denomination, such as fees and validity
@@ -141,7 +141,8 @@ TEH_keys_update_states (void);
  *         or NULL if @a h_denom_pub could not be found
  */
 struct TEH_DenominationKey *
-TEH_keys_denomination_by_hash (const struct TALER_DenominationHash *h_denom_pub,
+TEH_keys_denomination_by_hash (const struct
+                               TALER_DenominationHashP *h_denom_pub,
                                struct MHD_Connection *conn,
                                MHD_RESULT *mret);
 
@@ -162,29 +163,48 @@ TEH_keys_denomination_by_hash (const struct TALER_DenominationHash *h_denom_pub,
 struct TEH_DenominationKey *
 TEH_keys_denomination_by_hash2 (
   struct TEH_KeyStateHandle *ksh,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   struct MHD_Connection *conn,
   MHD_RESULT *mret);
 
 
 /**
  * Request to sign @a msg using the public key corresponding to
- * @a h_denom_pub.
+ * @a h_denom_pub during a withdraw operation.
  *
  * @param h_denom_pub hash of the public key to use to sign
  * @param bp blinded planchet to sign
+ * @param is_melt should we use the KDF for melting?
  * @param[out] bs set to the blind signature on success
  * @return #TALER_EC_NONE on success
  */
 enum TALER_ErrorCode
-TEH_keys_denomination_sign (const struct TALER_DenominationHash *h_denom_pub,
+TEH_keys_denomination_sign_withdraw (
+  const struct TALER_DenominationHashP *h_denom_pub,
+  const struct TALER_BlindedPlanchet *bp,
+  struct TALER_BlindedDenominationSignature *bs);
+
+
+/**
+ * Request to sign @a msg using the public key corresponding to
+ * @a h_denom_pub during a refresh operation.
+ *
+ * @param h_denom_pub hash of the public key to use to sign
+ * @param bp blinded planchet to sign
+ * @param is_melt should we use the KDF for melting?
+ * @param[out] bs set to the blind signature on success
+ * @return #TALER_EC_NONE on success
+ */
+enum TALER_ErrorCode
+TEH_keys_denomination_sign_melt (
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_BlindedPlanchet *bp,
   struct TALER_BlindedDenominationSignature *bs);
 
 
 /**
  * Request to derive CS @a r_pub using the denomination corresponding to @a h_denom_pub
- * and @a nonce.
+ * and @a nonce for withdrawing.
  *
  * @param h_denom_pub hash of the public key to use to derive r_pub
  * @param nonce withdraw/refresh nonce
@@ -192,8 +212,24 @@ TEH_keys_denomination_sign (const struct TALER_DenominationHash *h_denom_pub,
  * @return #TALER_EC_NONE on success
  */
 enum TALER_ErrorCode
-TEH_keys_denomination_cs_r_pub (
-  const struct TALER_DenominationHash *h_denom_pub,
+TEH_keys_denomination_cs_r_pub_withdraw (
+  const struct TALER_DenominationHashP *h_denom_pub,
+  const struct TALER_CsNonce *nonce,
+  struct TALER_DenominationCSPublicRPairP *r_pub);
+
+
+/**
+ * Request to derive CS @a r_pub using the denomination corresponding to @a h_denom_pub
+ * and @a nonce for melting.
+ *
+ * @param h_denom_pub hash of the public key to use to derive r_pub
+ * @param nonce withdraw/refresh nonce
+ * @param[out] r_pub where to write the result
+ * @return #TALER_EC_NONE on success
+ */
+enum TALER_ErrorCode
+TEH_keys_denomination_cs_r_pub_melt (
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_CsNonce *nonce,
   struct TALER_DenominationCSPublicRPairP *r_pub);
 
@@ -210,7 +246,8 @@ TEH_keys_denomination_cs_r_pub (
  * @param h_denom_pub hash of the public key to revoke
  */
 void
-TEH_keys_denomination_revoke (const struct TALER_DenominationHash *h_denom_pub);
+TEH_keys_denomination_revoke (const struct
+                              TALER_DenominationHashP *h_denom_pub);
 
 
 /**
@@ -387,7 +424,7 @@ TEH_keys_management_get_keys_handler (const struct TEH_RequestHandler *rh,
  *         #GNUNET_SYSERR on hard errors
  */
 enum GNUNET_GenericReturnValue
-TEH_keys_load_fees (const struct TALER_DenominationHash *h_denom_pub,
+TEH_keys_load_fees (const struct TALER_DenominationHashP *h_denom_pub,
                     struct TALER_DenominationPublicKey *denom_pub,
                     struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta);
 

src/exchange/taler-exchange-httpd_kyc-check.c

@@ -73,12 +73,12 @@ struct KycPoller
    * Hash of the payto:// URI we are confirming to
    * have finished the KYC for.
    */
-  struct TALER_PaytoHash h_payto;
+  struct TALER_PaytoHashP h_payto;
 
   /**
    * Hash of the payto:// URI that was given to us for auth.
    */
-  struct TALER_PaytoHash auth_h_payto;
+  struct TALER_PaytoHashP auth_h_payto;
 
   /**
    * When will this request time out?

src/exchange/taler-exchange-httpd_management.h

@@ -64,7 +64,7 @@ TEH_handler_management_auditors_AP_disable (
 MHD_RESULT
 TEH_handler_management_denominations_HDP_revoke (
   struct MHD_Connection *connection,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const json_t *root);
 
 

src/exchange/taler-exchange-httpd_management_denominations_HDP_revoke.c

@@ -34,7 +34,7 @@
 MHD_RESULT
 TEH_handler_management_denominations_HDP_revoke (
   struct MHD_Connection *connection,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const json_t *root)
 {
   struct TALER_MasterSignatureP master_sig;

src/exchange/taler-exchange-httpd_management_extensions.c

@@ -234,7 +234,7 @@ TEH_handler_management_post_extensions (
 
   /* Verify the signature */
   {
-    struct TALER_ExtensionConfigHash h_config;
+    struct TALER_ExtensionConfigHashP h_config;
 
     if (GNUNET_OK !=
         TALER_JSON_extensions_config_hash (extensions, &h_config) ||

src/exchange/taler-exchange-httpd_management_post_keys.c

@@ -40,7 +40,7 @@ struct DenomSig
   /**
    * Hash of a denomination public key.
    */
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   /**
    * Master signature for the @e h_denom_pub.

src/exchange/taler-exchange-httpd_melt.c

@@ -237,12 +237,23 @@ database_melt (struct MHD_Connection *connection,
     MHD_RESULT mhd_ret = MHD_NO;
     enum GNUNET_DB_QueryStatus qs;
 
+    for (unsigned int tries = 0; tries<MAX_TRANSACTION_COMMIT_RETRIES; tries++)
+    {
       qs = TEH_make_coin_known (&rmc->refresh_session.coin,
                                 connection,
                                 &rmc->known_coin_id,
                                 &mhd_ret);
-    /* no transaction => no serialization failures should be possible */
-    GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR != qs);
+      if (GNUNET_DB_STATUS_SOFT_ERROR != qs)
+        break;
+    }
+    if (GNUNET_DB_STATUS_SOFT_ERROR == qs)
+    {
+      GNUNET_break (0);
+      return TALER_MHD_reply_with_error (connection,
+                                         MHD_HTTP_INTERNAL_SERVER_ERROR,
+                                         TALER_EC_GENERIC_DB_COMMIT_FAILED,
+                                         "make_coin_known");
+    }
     if (qs < 0)
       return mhd_ret;
   }
@@ -362,7 +373,7 @@ check_melt_valid (struct MHD_Connection *connection,
   if (GNUNET_TIME_absolute_is_past (dk->meta.expire_deposit.abs_time))
   {
     /* We are past deposit expiration time, but maybe this is a zombie? */
-    struct TALER_DenominationHash denom_hash;
+    struct TALER_DenominationHashP denom_hash;
     enum GNUNET_DB_QueryStatus qs;
 
     /* Check that the coin is dirty (we have seen it before), as we will
@@ -425,7 +436,7 @@ TEH_handler_melt (struct MHD_Connection *connection,
     GNUNET_JSON_spec_fixed_auto ("denom_pub_hash",
                                  &rmc.refresh_session.coin.denom_pub_hash),
     GNUNET_JSON_spec_mark_optional (
-      GNUNET_JSON_spec_fixed_auto ("h_age_commitment",
+      GNUNET_JSON_spec_fixed_auto ("age_commitment_hash",
                                    &rmc.refresh_session.coin.h_age_commitment)),
     GNUNET_JSON_spec_fixed_auto ("confirm_sig",
                                  &rmc.refresh_session.coin_sig),
@@ -440,10 +451,9 @@ TEH_handler_melt (struct MHD_Connection *connection,
     GNUNET_JSON_spec_end ()
   };
 
-  memset (&rmc,
-          0,
-          sizeof (rmc));
+  memset (&rmc, 0, sizeof (rmc));
   rmc.refresh_session.coin.coin_pub = *coin_pub;
+
   {
     enum GNUNET_GenericReturnValue ret;
     ret = TALER_MHD_parse_json_data (connection,
@@ -452,8 +462,10 @@ TEH_handler_melt (struct MHD_Connection *connection,
     if (GNUNET_OK != ret)
       return (GNUNET_SYSERR == ret) ? MHD_NO : MHD_YES;
   }
+
   rmc.have_rms = (NULL != json_object_get (root,
                                            "rms"));
+
   {
     MHD_RESULT res;
 

src/exchange/taler-exchange-httpd_recoup-refresh.c

@@ -180,7 +180,7 @@ verify_and_execute_recoup_refresh (
   struct RecoupContext pc;
   const struct TEH_DenominationKey *dk;
   MHD_RESULT mret;
-  struct TALER_BlindedCoinHash h_blind;
+  struct TALER_BlindedCoinHashP h_blind;
 
   /* check denomination exists and is in recoup mode */
   dk = TEH_keys_denomination_by_hash (&coin->denom_pub_hash,
@@ -245,7 +245,7 @@ verify_and_execute_recoup_refresh (
   }
 
   {
-    struct TALER_CoinPubHash c_hash;
+    struct TALER_CoinPubHashP c_hash;
     struct TALER_BlindedPlanchet blinded_planchet;
 
     if (GNUNET_OK !=

src/exchange/taler-exchange-httpd_recoup.c

@@ -42,7 +42,7 @@ struct RecoupContext
   /**
    * Hash identifying the withdraw request.
    */
-  struct TALER_BlindedCoinHash h_coin_ev;
+  struct TALER_BlindedCoinHashP h_coin_ev;
 
   /**
    * Set by #recoup_transaction() to the reserve that will
@@ -250,7 +250,7 @@ verify_and_execute_recoup (
      (a bit later) check that this coin was indeed
      signed by us. */
   {
-    struct TALER_CoinPubHash c_hash;
+    struct TALER_CoinPubHashP c_hash;
     struct TALER_BlindedPlanchet blinded_planchet;
 
     if (GNUNET_OK !=

src/exchange/taler-exchange-httpd_refreshes_reveal.c

@@ -216,7 +216,7 @@ check_commitment (struct RevealContext *rctx,
       {
         enum TALER_ErrorCode ec;
 
-        ec = TEH_keys_denomination_cs_r_pub (
+        ec = TEH_keys_denomination_cs_r_pub_melt (
           &rctx->rrcs[j].h_denom_pub,
           &nonces[aoff],
           &alg_values->details.cs_values);
@@ -277,9 +277,9 @@ check_commitment (struct RevealContext *rctx,
           union TALER_DenominationBlindingKeyP bks;
           const struct TALER_ExchangeWithdrawValues *alg_value
             = &rctx->rrcs[j].exchange_vals;
-          struct TALER_PlanchetDetail pd;
+          struct TALER_PlanchetDetail pd = {0};
           struct TALER_AgeCommitmentHash *hac = NULL;
-          struct TALER_CoinPubHash c_hash;
+          struct TALER_CoinPubHashP c_hash;
           struct TALER_PlanchetMasterSecretP ps;
 
           rcd->dk = &rctx->dks[j]->denom_pub;
@@ -296,17 +296,23 @@ check_commitment (struct RevealContext *rctx,
            * the transfer_secret and the old age commitment. */
           if (NULL != rctx->old_age_commitment)
           {
-            struct TALER_AgeCommitment ac = {0};
+            uint64_t seed = (uint64_t) ts.key.bits[0]
+                            | (uint64_t) ts.key.bits[1] << 32;
+            struct TALER_AgeCommitmentProof acp = {
+              /* we only need the commitment, not the proof, for the call to
+               * TALER_age_commitment_derive. */
+              .commitment = *(rctx->old_age_commitment)
+            };
+            struct TALER_AgeCommitmentProof nacp = {0};
             struct TALER_AgeCommitmentHash h = {0};
 
             GNUNET_assert (GNUNET_OK ==
                            TALER_age_commitment_derive (
-                             rctx->old_age_commitment,
-                             ts.key.bits[0],
-                             &ac));
-
-            TALER_age_commitment_hash (&ac, &h);
+                             &acp,
+                             seed,
+                             &nacp));
 
+            TALER_age_commitment_hash (&nacp.commitment, &h);
             hac = &h;
           }
 
@@ -590,7 +596,7 @@ resolve_refreshes_reveal_denominations (struct MHD_Connection *connection,
   if (TEH_age_restriction_enabled &&
       ((NULL == old_age_commitment_json) !=
        TALER_AgeCommitmentHash_isNullOrZero (
-         &rctx->melt.session.h_age_commitment)))
+         &rctx->melt.session.coin.h_age_commitment)))
   {
     GNUNET_break (0);
     return MHD_NO;
@@ -602,7 +608,7 @@ resolve_refreshes_reveal_denominations (struct MHD_Connection *connection,
       (NULL != old_age_commitment_json))
   {
     enum GNUNET_GenericReturnValue res;
-    struct TALER_AgeCommitment *oac = rctx->old_age_commitment;
+    struct TALER_AgeCommitment *oac;
     size_t ng = json_array_size (old_age_commitment_json);
     bool failed = true;
 
@@ -610,10 +616,10 @@ resolve_refreshes_reveal_denominations (struct MHD_Connection *connection,
     GNUNET_assert (ng ==
                    TALER_extensions_age_restriction_num_groups ());
 
-    oac = GNUNET_new (struct TALER_AgeCommitment);
+    rctx->old_age_commitment = GNUNET_new (struct TALER_AgeCommitment);
+    oac = rctx->old_age_commitment;
     oac->mask  =  TEH_age_mask;
-    oac->num_pub = ng;
-    oac->num_priv = 0; /* no private keys are needed for the reveal phase */
+    oac->num = ng;
     oac->pub = GNUNET_new_array (ng, struct TALER_AgeCommitmentPublicKeyP);
 
     /* Extract old age commitment */
@@ -630,7 +636,8 @@ resolve_refreshes_reveal_denominations (struct MHD_Connection *connection,
                                         ac_spec,
                                         i,
                                         -1);
-      GNUNET_break (GNUNET_OK != res);
+
+      GNUNET_break_op (GNUNET_OK == res);
       if (GNUNET_OK != res)
         goto clean_age;
     }
@@ -640,13 +647,10 @@ resolve_refreshes_reveal_denominations (struct MHD_Connection *connection,
       struct TALER_AgeCommitmentHash hac = {0};
       TALER_age_commitment_hash (oac, &hac);
       if (0 != memcmp (&hac,
-                       &rctx->melt.session.h_age_commitment,
+                       &rctx->melt.session.coin.h_age_commitment,
                        sizeof(struct TALER_AgeCommitmentHash)))
-      {
-        GNUNET_break (0);
         goto clean_age;
     }
-    }
 
     failed = false;
 
@@ -654,7 +658,10 @@ clean_age:
     if (failed)
     {
       TALER_age_commitment_free (oac);
-      return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+      return TALER_MHD_reply_with_error (connection,
+                                         MHD_HTTP_BAD_REQUEST,
+                                         TALER_EC_EXCHANGE_REFRESHES_REVEAL_AGE_RESTRICTION_COMMITMENT_INVALID,
+                                         "old_age_commitment");
     }
   }
 
@@ -733,7 +740,9 @@ clean_age:
   {
     enum TALER_ErrorCode ec;
 
-    ec = TEH_keys_denomination_sign (
+    // FIXME: replace with a batch call that
+    // passes all coins in once go!
+    ec = TEH_keys_denomination_sign_melt (
       &rrcs[i].h_denom_pub,
       &rcds[i].blinded_planchet,
       &rrcs[i].coin_sig);
@@ -911,7 +920,7 @@ TEH_handler_reveal (struct TEH_RequestContext *rc,
   json_t *transfer_privs;
   json_t *link_sigs;
   json_t *new_denoms_h;
-  json_t *old_age_commitment = NULL;
+  json_t *old_age_commitment;
   struct RevealContext rctx;
   struct GNUNET_JSON_Specification spec[] = {
     GNUNET_JSON_spec_fixed_auto ("transfer_pub",

src/exchange/taler-exchange-httpd_refund.c

@@ -204,7 +204,7 @@ static MHD_RESULT
 verify_and_execute_refund (struct MHD_Connection *connection,
                            struct TALER_EXCHANGEDB_Refund *refund)
 {
-  struct TALER_DenominationHash denom_hash;
+  struct TALER_DenominationHashP denom_hash;
   struct RefundContext rctx = {
     .refund = refund
   };

src/exchange/taler-exchange-httpd_responses.c

@@ -61,7 +61,7 @@ TEH_RESPONSE_compile_transaction_history (
       {
         const struct TALER_EXCHANGEDB_DepositListEntry *deposit =
           pos->details.deposit;
-        struct TALER_MerchantWireHash h_wire;
+        struct TALER_MerchantWireHashP h_wire;
 
         TALER_merchant_wire_signature_hash (deposit->receiver_wire_account,
                                             &deposit->wire_salt,
@@ -111,6 +111,9 @@ TEH_RESPONSE_compile_transaction_history (
                 GNUNET_JSON_pack_data_auto ("h_denom_pub",
                                             &deposit->h_denom_pub),
                 GNUNET_JSON_pack_allow_null (
+                  deposit->no_age_commitment ?
+                  GNUNET_JSON_pack_string (
+                    "h_age_commitment", NULL) :
                   GNUNET_JSON_pack_data_auto ("h_age_commitment",
                                               &deposit->h_age_commitment)),
                 GNUNET_JSON_pack_data_auto ("coin_sig",
@@ -146,7 +149,7 @@ TEH_RESPONSE_compile_transaction_history (
 
         /* Age restriction is optional.  We communicate a NULL value to
          * JSON_PACK below */
-        if (! TALER_AgeCommitmentHash_isNullOrZero (&melt->h_age_commitment))
+        if (! melt->no_age_commitment)
           phac = &melt->h_age_commitment;
 
         if (0 !=
@@ -410,7 +413,7 @@ TEH_RESPONSE_compile_transaction_history (
 MHD_RESULT
 TEH_RESPONSE_reply_unknown_denom_pub_hash (
   struct MHD_Connection *connection,
-  const struct TALER_DenominationHash *dph)
+  const struct TALER_DenominationHashP *dph)
 {
   struct TALER_ExchangePublicKeyP epub;
   struct TALER_ExchangeSignatureP esig;
@@ -456,7 +459,7 @@ TEH_RESPONSE_reply_unknown_denom_pub_hash (
 MHD_RESULT
 TEH_RESPONSE_reply_expired_denom_pub_hash (
   struct MHD_Connection *connection,
-  const struct TALER_DenominationHash *dph,
+  const struct TALER_DenominationHashP *dph,
   enum TALER_ErrorCode ec,
   const char *oper)
 {
@@ -509,7 +512,7 @@ TEH_RESPONSE_reply_expired_denom_pub_hash (
 MHD_RESULT
 TEH_RESPONSE_reply_invalid_denom_cipher_for_operation (
   struct MHD_Connection *connection,
-  const struct TALER_DenominationHash *dph)
+  const struct TALER_DenominationHashP *dph)
 {
   struct TALER_ExchangePublicKeyP epub;
   struct TALER_ExchangeSignatureP esig;

src/exchange/taler-exchange-httpd_responses.h

@@ -58,7 +58,7 @@ TEH_RESPONSE_compile_reserve_history (
 MHD_RESULT
 TEH_RESPONSE_reply_unknown_denom_pub_hash (
   struct MHD_Connection *connection,
-  const struct TALER_DenominationHash *dph);
+  const struct TALER_DenominationHashP *dph);
 
 
 /**
@@ -74,7 +74,7 @@ TEH_RESPONSE_reply_unknown_denom_pub_hash (
 MHD_RESULT
 TEH_RESPONSE_reply_expired_denom_pub_hash (
   struct MHD_Connection *connection,
-  const struct TALER_DenominationHash *dph,
+  const struct TALER_DenominationHashP *dph,
   enum TALER_ErrorCode ec,
   const char *oper);
 
@@ -89,7 +89,7 @@ TEH_RESPONSE_reply_expired_denom_pub_hash (
 MHD_RESULT
 TEH_RESPONSE_reply_invalid_denom_cipher_for_operation (
   struct MHD_Connection *connection,
-  const struct TALER_DenominationHash *dph);
+  const struct TALER_DenominationHashP *dph);
 
 
 /**

src/exchange/taler-exchange-httpd_transfers_get.c

@@ -51,7 +51,7 @@ struct AggregatedDepositDetail
   /**
    * Hash of the contract terms.
    */
-  struct TALER_PrivateContractHash h_contract_terms;
+  struct TALER_PrivateContractHashP h_contract_terms;
 
   /**
    * Coin's public key of the deposited coin.
@@ -260,6 +260,7 @@ struct WtidTransactionContext
  * @param rowid which row in the DB is the information from (for diagnostics), ignored
  * @param merchant_pub public key of the merchant (should be same for all callbacks with the same @e cls)
  * @param account_payto_uri where the funds were sent
+ * @param h_payto hash over @a account_payto_uri as it is in the DB
  * @param exec_time execution time of the wire transfer (should be same for all callbacks with the same @e cls)
  * @param h_contract_terms which proposal was this payment about
  * @param denom_pub denomination public key of the @a coin_pub (ignored)
@@ -272,8 +273,9 @@ handle_deposit_data (void *cls,
                      uint64_t rowid,
                      const struct TALER_MerchantPublicKeyP *merchant_pub,
                      const char *account_payto_uri,
+                     const struct TALER_PaytoHashP *h_payto,
                      struct GNUNET_TIME_Timestamp exec_time,
-                     const struct TALER_PrivateContractHash *h_contract_terms,
+                     const struct TALER_PrivateContractHashP *h_contract_terms,
                      const struct TALER_DenominationPublicKey *denom_pub,
                      const struct TALER_CoinSpendPublicKeyP *coin_pub,
                      const struct TALER_Amount *deposit_value,

src/exchange/taler-exchange-httpd_withdraw.c

@@ -94,7 +94,7 @@ struct WithdrawContext
   /**
    * Hash of the (blinded) message to be signed by the Exchange.
    */
-  struct TALER_BlindedCoinHash h_coin_envelope;
+  struct TALER_BlindedCoinHashP h_coin_envelope;
 
   /**
    * Value of the coin being exchanged (matching the denomination key)
@@ -505,7 +505,7 @@ TEH_handler_withdraw (struct TEH_RequestContext *rc,
   }
 
   /* Sign before transaction! */
-  ec = TEH_keys_denomination_sign (
+  ec = TEH_keys_denomination_sign_withdraw (
     &wc.collectable.denom_pub_hash,
     &wc.blinded_planchet,
     &wc.collectable.sig);

src/exchangedb/drop0001.sql

@@ -55,6 +55,7 @@ DROP TABLE IF EXISTS reserves CASCADE;
 DROP TABLE IF EXISTS denomination_revocations CASCADE;
 DROP TABLE IF EXISTS denominations CASCADE;
 
+
 DROP FUNCTION IF EXISTS exchange_do_withdraw(bigint,int,bytea,bytea,bytea,bytea,bytea,bigint,bigint) ;
 
 DROP FUNCTION IF EXISTS exchange_do_withdraw_limit_check(bytea,bigint,bigint,int) ;
@@ -72,4 +73,5 @@ DROP FUNCTION IF EXISTS exchange_do_recoup_to_reserve;
 -- FIXME: drop other stored functions!
 
 -- And we're out of here...
+
 COMMIT;

src/exchangedb/exchange-0001.sql

@@ -88,6 +88,14 @@ CREATE TABLE IF NOT EXISTS wire_targets_default
   PARTITION OF wire_targets
   FOR VALUES WITH (MODULUS 1, REMAINDER 0);
 
+-- FIXME partition by serial_id rather than h_payto, 
+-- it is used more in join conditions - crucial for sharding to select this.
+-- Author: (Boss Marco)
+CREATE INDEX IF NOT EXISTS wire_targets_serial_id_index
+  ON wire_targets
+  (wire_target_serial_id
+  );
+
 CREATE TABLE IF NOT EXISTS reserves
   (reserve_uuid BIGINT GENERATED BY DEFAULT AS IDENTITY
   ,reserve_pub BYTEA PRIMARY KEY CHECK(LENGTH(reserve_pub)=32)
@@ -196,7 +204,7 @@ CREATE INDEX IF NOT EXISTS reserves_close_by_reserve_pub_index
 
 CREATE TABLE IF NOT EXISTS reserves_out
   (reserve_out_serial_id BIGINT GENERATED BY DEFAULT AS IDENTITY -- UNIQUE
-  ,h_blind_ev BYTEA CHECK (LENGTH(h_blind_ev)=64) -- UNIQUE
+  ,h_blind_ev BYTEA CHECK (LENGTH(h_blind_ev)=64) UNIQUE
   ,denominations_serial INT8 NOT NULL REFERENCES denominations (denominations_serial)
   ,denom_sig BYTEA NOT NULL
   ,reserve_uuid INT8 NOT NULL -- REFERENCES reserves (reserve_uuid) ON DELETE CASCADE
@@ -311,7 +319,7 @@ CREATE TABLE IF NOT EXISTS known_coins
   (known_coin_id BIGINT GENERATED BY DEFAULT AS IDENTITY -- UNIQUE
   ,denominations_serial INT8 NOT NULL REFERENCES denominations (denominations_serial) ON DELETE CASCADE
   ,coin_pub BYTEA NOT NULL PRIMARY KEY CHECK (LENGTH(coin_pub)=32)
-  ,age_hash BYTEA CHECK (LENGTH(age_hash)=32)
+  ,age_commitment_hash BYTEA CHECK (LENGTH(age_commitment_hash)=32)
   ,denom_sig BYTEA NOT NULL
   ,remaining_val INT8 NOT NULL
   ,remaining_frac INT4 NOT NULL
@@ -325,8 +333,8 @@ COMMENT ON COLUMN known_coins.coin_pub
   IS 'EdDSA public key of the coin';
 COMMENT ON COLUMN known_coins.remaining_val
   IS 'Value of the coin that remains to be spent';
-COMMENT ON COLUMN known_coins.age_hash
-  IS 'Optional hash for age restrictions as per DD 24 (active if denom_type has the respective bit set)';
+COMMENT ON COLUMN known_coins.age_commitment_hash
+  IS 'Optional hash of the age commitment for age restrictions as per DD 24 (active if denom_type has the respective bit set)';
 COMMENT ON COLUMN known_coins.denom_sig
   IS 'This is the signature of the exchange that affirms that the coin is a valid coin. The specific signature type depends on denom_type of the denomination.';
 CREATE TABLE IF NOT EXISTS known_coins_default
@@ -358,7 +366,7 @@ COMMENT ON COLUMN refresh_commitments.rc
 COMMENT ON COLUMN refresh_commitments.old_coin_pub
   IS 'Coin being melted in the refresh process.';
 COMMENT ON COLUMN refresh_commitments.h_age_commitment
-  IS '(optional) age commitment that was involved in the minting process of the coin, may be NULL.';
+  IS 'The (optional) age commitment that was involved in the minting process of the coin, may be NULL.';
 CREATE TABLE IF NOT EXISTS refresh_commitments_default
   PARTITION OF refresh_commitments
   FOR VALUES WITH (MODULUS 1, REMAINDER 0);
@@ -581,7 +589,7 @@ CREATE INDEX IF NOT EXISTS wire_out_by_wire_target_serial_id_index
 CREATE TABLE IF NOT EXISTS aggregation_tracking
   (aggregation_serial_id BIGINT GENERATED BY DEFAULT AS IDENTITY -- UNIQUE
   ,deposit_serial_id INT8 PRIMARY KEY -- REFERENCES deposits (deposit_serial_id) ON DELETE CASCADE
-  ,wtid_raw BYTEA CONSTRAINT wire_out_ref REFERENCES wire_out(wtid_raw) ON DELETE CASCADE DEFERRABLE
+  ,wtid_raw BYTEA NOT NULL CONSTRAINT wire_out_ref REFERENCES wire_out(wtid_raw) ON DELETE CASCADE DEFERRABLE
   )
   PARTITION BY HASH (deposit_serial_id);
 COMMENT ON TABLE aggregation_tracking
@@ -634,7 +642,7 @@ CREATE TABLE IF NOT EXISTS recoup
   ,recoup_timestamp INT8 NOT NULL
   ,reserve_out_serial_id INT8 NOT NULL -- REFERENCES reserves_out (reserve_out_serial_id) ON DELETE CASCADE
   )
-  PARTITION BY RANGE (known_coin_id);
+  PARTITION BY HASH (known_coin_id);
 COMMENT ON TABLE recoup
   IS 'Information about recoups that were executed between a coin and a reserve. In this type of recoup, the amount is credited back to the reserve from which the coin originated.';
 COMMENT ON COLUMN recoup.known_coin_id
@@ -647,7 +655,7 @@ COMMENT ON COLUMN recoup.coin_blind
   IS 'Denomination blinding key used when creating the blinded coin from the planchet. Secret revealed during the recoup to provide the linkage between the coin and the withdraw operation.';
 CREATE TABLE IF NOT EXISTS recoup_default
   PARTITION OF recoup
-  DEFAULT;
+  FOR VALUES WITH (MODULUS 1, REMAINDER 0);
 
 CREATE INDEX IF NOT EXISTS recoup_by_recoup_uuid_index
   ON recoup
@@ -670,7 +678,7 @@ CREATE TABLE IF NOT EXISTS recoup_refresh
   ,recoup_timestamp INT8 NOT NULL
   ,rrc_serial INT8 NOT NULL -- REFERENCES refresh_revealed_coins (rrc_serial) ON DELETE CASCADE -- UNIQUE
   )
-  PARTITION BY RANGE (known_coin_id);
+  PARTITION BY HASH (known_coin_id);
 COMMENT ON TABLE recoup_refresh
   IS 'Table of coins that originated from a refresh operation and that were recouped. Links the (fresh) coin to the melted operation (and thus the old coin). A recoup on a refreshed coin credits the old coin and debits the fresh coin.';
 COMMENT ON COLUMN recoup_refresh.known_coin_id
@@ -681,7 +689,7 @@ COMMENT ON COLUMN recoup_refresh.coin_blind
   IS 'Denomination blinding key used when creating the blinded coin from the planchet. Secret revealed during the recoup to provide the linkage between the coin and the refresh operation.';
 CREATE TABLE IF NOT EXISTS recoup_refresh_default
   PARTITION OF recoup_refresh
-  DEFAULT;
+  FOR VALUES WITH (MODULUS 1, REMAINDER 0);
 
 CREATE INDEX IF NOT EXISTS recoup_refresh_by_recoup_refresh_uuid_index
   ON recoup_refresh
@@ -701,7 +709,7 @@ CREATE TABLE IF NOT EXISTS prewire
   ,failed BOOLEAN NOT NULL DEFAULT false
   ,buf BYTEA NOT NULL
   )
-  PARTITION BY RANGE (prewire_uuid);
+  PARTITION BY HASH (prewire_uuid);
 COMMENT ON TABLE prewire
   IS 'pre-commit data for wire transfers we are about to execute';
 COMMENT ON COLUMN prewire.failed
@@ -712,7 +720,7 @@ COMMENT ON COLUMN prewire.buf
   IS 'serialized data to send to the bank to execute the wire transfer';
 CREATE TABLE IF NOT EXISTS prewire_default
   PARTITION OF prewire
-  DEFAULT;
+  FOR VALUES WITH (MODULUS 1, REMAINDER 0);
 
 CREATE INDEX IF NOT EXISTS prewire_by_finished_index
   ON prewire
@@ -762,6 +770,9 @@ COMMENT ON COLUMN cs_nonce_locks.op_hash
   IS 'hash (RC for refresh, blind coin hash for withdraw) the nonce may be used with';
 COMMENT ON COLUMN cs_nonce_locks.max_denomination_serial
   IS 'Maximum number of a CS denomination serial the nonce could be used with, for GC';
+CREATE TABLE IF NOT EXISTS cs_nonce_locks_default
+  PARTITION OF cs_nonce_locks
+  FOR VALUES WITH (MODULUS 1, REMAINDER 0);
 
 
 CREATE TABLE IF NOT EXISTS work_shards
@@ -828,6 +839,225 @@ CREATE INDEX IF NOT EXISTS revolving_work_shards_by_job_name_active_last_attempt
   );
 
 
+-- Partitions
+
+
+CREATE OR REPLACE FUNCTION create_table_partition(
+    source_table_name VARCHAR
+    ,modulus INTEGER
+    ,num_partitions INTEGER
+  )
+  RETURNS VOID
+  LANGUAGE plpgsql
+AS $$
+BEGIN
+
+  RAISE NOTICE 'Creating partition %_%', source_table_name, num_partitions;
+
+  EXECUTE FORMAT(
+    'CREATE TABLE IF NOT EXISTS %I '
+      'PARTITION OF %I '
+      'FOR VALUES WITH (MODULUS %s, REMAINDER %s)'
+    ,source_table_name || '_' || num_partitions
+    ,source_table_name
+    ,modulus
+    ,num_partitions-1
+  );
+
+END
+$$;
+
+CREATE OR REPLACE FUNCTION detach_default_partitions()
+  RETURNS VOID
+  LANGUAGE plpgsql
+AS $$
+BEGIN
+
+  RAISE NOTICE 'Detaching all default table partitions';
+
+  ALTER TABLE IF EXISTS wire_targets
+    DETACH PARTITION wire_targets_default;
+  ALTER TABLE IF EXISTS reserves
+    DETACH PARTITION reserves_default;
+  ALTER TABLE IF EXISTS reserves_in
+    DETACH PARTITION reserves_in_default;
+  ALTER TABLE IF EXISTS reserves_close
+    DETACH PARTITION reserves_close_default;
+  ALTER TABLE IF EXISTS reserves_out
+    DETACH PARTITION reserves_out_default;
+  ALTER TABLE IF EXISTS known_coins
+    DETACH PARTITION known_coins_default;
+  ALTER TABLE IF EXISTS refresh_commitments
+    DETACH PARTITION refresh_commitments_default;
+  ALTER TABLE IF EXISTS refresh_revealed_coins
+    DETACH PARTITION refresh_revealed_coins_default;
+  ALTER TABLE IF EXISTS refresh_transfer_keys
+    DETACH PARTITION refresh_transfer_keys_default;
+  ALTER TABLE IF EXISTS deposits
+    DETACH PARTITION deposits_default;
+  ALTER TABLE IF EXISTS refunds
+    DETACH PARTITION refunds_default;
+  ALTER TABLE IF EXISTS wire_out
+    DETACH PARTITION wire_out_default;
+  ALTER TABLE IF EXISTS aggregation_tracking
+    DETACH PARTITION aggregation_tracking_default;
+  ALTER TABLE IF EXISTS recoup
+    DETACH PARTITION recoup_default;
+  ALTER TABLE IF EXISTS recoup_refresh
+    DETACH PARTITION recoup_refresh_default;
+  ALTER TABLE IF EXISTS prewire
+    DETACH PARTITION prewire_default;
+  ALTER TABLE IF EXISTS cs_nonce_locks
+    DETACH partition cs_nonce_locks_default;
+
+END
+$$;
+
+COMMENT ON FUNCTION detach_default_partitions
+  IS 'We need to drop default and create new one before deleting the default partitions
+      otherwise constraints get lost too';
+
+
+CREATE OR REPLACE FUNCTION drop_default_partitions()
+  RETURNS VOID
+  LANGUAGE plpgsql
+AS $$
+BEGIN
+
+  RAISE NOTICE 'Dropping default table partitions';
+
+  DROP TABLE IF EXISTS wire_targets_default;
+  DROP TABLE IF EXISTS reserves_default;
+  DROP TABLE IF EXISTS reserves_in_default;
+  DROP TABLE IF EXISTS reserves_close_default;
+  DROP TABLE IF EXISTS reserves_out_default;
+  DROP TABLE IF EXISTS known_coins_default;
+  DROP TABLE IF EXISTS refresh_commitments_default;
+  DROP TABLE IF EXISTS refresh_revealed_coins_default;
+  DROP TABLE IF EXISTS refresh_transfer_keys_default;
+  DROP TABLE IF EXISTS deposits_default;
+  DROP TABLE IF EXISTS refunds_default;
+  DROP TABLE IF EXISTS wire_out_default;
+  DROP TABLE IF EXISTS aggregation_tracking_default;
+  DROP TABLE IF EXISTS recoup_default;
+  DROP TABLE IF EXISTS recoup_refresh_default;
+  DROP TABLE IF EXISTS prewire_default;
+  DROP TABLE IF EXISTS cs_nonce_locks_default;
+
+END
+$$;
+
+CREATE OR REPLACE FUNCTION create_partitions(
+    num_partitions INTEGER
+)
+RETURNS VOID
+LANGUAGE plpgsql
+AS $$
+DECLARE
+  modulus INTEGER;
+BEGIN
+
+  modulus := num_partitions;
+
+  PERFORM detach_default_partitions();
+
+  LOOP
+    PERFORM create_table_partition(
+      'wire_targets'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'reserves'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'reserves_in'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'reserves_close'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'reserves_out'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'known_coins'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'refresh_commitments'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'refresh_revealed_coins'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'refresh_transfer_keys'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'deposits'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'refunds'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'wire_out'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'aggregation_tracking'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'recoup'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'recoup_refresh'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'prewire'
+      ,modulus
+      ,num_partitions
+    );
+    PERFORM create_table_partition(
+      'cs_nonce_locks'
+      ,modulus
+      ,num_partitions
+    );
+
+    num_partitions=num_partitions-1;
+    EXIT WHEN num_partitions=0;
+
+  END LOOP;
+
+  PERFORM drop_default_partitions();
+
+END
+$$;
+
 -- Stored procedures
 
 
@@ -1078,6 +1308,23 @@ COMMENT ON FUNCTION exchange_do_withdraw_limit_check(INT8, INT8, INT8, INT4)
   IS 'Check whether the withdrawals from the given reserve since the given time are below the given threshold';
 
 
+-- NOTE: experiment, currently dead, see postgres_Start_deferred_wire_out;
+-- now done inline. FIXME: Remove code here once inline version is confirmed working nicely!
+CREATE OR REPLACE PROCEDURE defer_wire_out()
+LANGUAGE plpgsql
+AS $$
+BEGIN
+
+IF EXISTS (
+  SELECT 1
+    FROM information_Schema.constraint_column_usage
+   WHERE table_name='wire_out'
+     AND constraint_name='wire_out_ref') 
+THEN 
+  SET CONSTRAINTS wire_out_ref DEFERRED;
+END IF;
+
+END $$;
 
 
 CREATE OR REPLACE FUNCTION exchange_do_deposit(
@@ -1131,7 +1378,7 @@ INSERT INTO wire_targets
   VALUES
   (in_h_payto
   ,in_receiver_wire_account)
-ON CONFLICT (h_payto) DO NOTHING
+ON CONFLICT DO NOTHING -- for CONFLICT ON (h_payto)
   RETURNING wire_target_serial_id INTO wtsi;
 
 IF NOT FOUND
@@ -1259,6 +1506,7 @@ CREATE OR REPLACE FUNCTION exchange_do_melt(
   IN in_old_coin_pub BYTEA,
   IN in_old_coin_sig BYTEA,
   IN in_known_coin_id INT8, -- not used, but that's OK
+  IN in_h_age_commitment BYTEA,
   IN in_noreveal_index INT4,
   IN in_zombie_required BOOLEAN,
   OUT out_balance_ok BOOLEAN,
@@ -1281,6 +1529,7 @@ INSERT INTO refresh_commitments
   ,old_coin_sig
   ,amount_with_fee_val
   ,amount_with_fee_frac
+  ,h_age_commitment
   ,noreveal_index
   )
   VALUES
@@ -1289,6 +1538,7 @@ INSERT INTO refresh_commitments
   ,in_old_coin_sig
   ,in_amount_with_fee_val
   ,in_amount_with_fee_frac
+  ,in_h_age_commitment
   ,in_noreveal_index)
   ON CONFLICT DO NOTHING;
 

src/exchangedb/irbt_callbacks.c

@@ -35,10 +35,14 @@ static enum GNUNET_DB_QueryStatus
 irbt_cb_table_denominations (struct PostgresClosure *pg,
                              const struct TALER_EXCHANGEDB_TableData *td)
 {
-  struct TALER_DenominationHash denom_hash;
+  struct TALER_DenominationHashP denom_hash;
   struct GNUNET_PQ_QueryParam params[] = {
     GNUNET_PQ_query_param_uint64 (&td->serial),
     GNUNET_PQ_query_param_auto_from_type (&denom_hash),
+    GNUNET_PQ_query_param_uint32 (
+      &td->details.denominations.denom_type),
+    GNUNET_PQ_query_param_uint32 (
+      &td->details.denominations.age_mask),
     TALER_PQ_query_param_denom_pub (
       &td->details.denominations.denom_pub),
     GNUNET_PQ_query_param_auto_from_type (
@@ -109,14 +113,17 @@ static enum GNUNET_DB_QueryStatus
 irbt_cb_table_wire_targets (struct PostgresClosure *pg,
                             const struct TALER_EXCHANGEDB_TableData *td)
 {
-  struct TALER_PaytoHash payto_hash;
+  struct TALER_PaytoHashP payto_hash;
   struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_uint64 (&td->serial),
     GNUNET_PQ_query_param_auto_from_type (&payto_hash),
     GNUNET_PQ_query_param_string (
       td->details.wire_targets.payto_uri),
     GNUNET_PQ_query_param_auto_from_type (
       &td->details.wire_targets.kyc_ok),
-    GNUNET_PQ_query_param_string (
+    NULL == td->details.wire_targets.external_id
+    ? GNUNET_PQ_query_param_null ()
+    : GNUNET_PQ_query_param_string (
       td->details.wire_targets.external_id),
     GNUNET_PQ_query_param_end
   };
@@ -260,13 +267,12 @@ static enum GNUNET_DB_QueryStatus
 irbt_cb_table_auditors (struct PostgresClosure *pg,
                         const struct TALER_EXCHANGEDB_TableData *td)
 {
-  uint8_t is_active = td->details.auditors.is_active ? 1 : 0;
   struct GNUNET_PQ_QueryParam params[] = {
     GNUNET_PQ_query_param_uint64 (&td->serial),
     GNUNET_PQ_query_param_auto_from_type (&td->details.auditors.auditor_pub),
     GNUNET_PQ_query_param_string (td->details.auditors.auditor_name),
     GNUNET_PQ_query_param_string (td->details.auditors.auditor_url),
-    GNUNET_PQ_query_param_auto_from_type (&is_active),
+    GNUNET_PQ_query_param_bool (&td->details.auditors.is_active),
     GNUNET_PQ_query_param_timestamp (&td->details.auditors.last_change),
     GNUNET_PQ_query_param_end
   };
@@ -376,6 +382,8 @@ irbt_cb_table_known_coins (struct PostgresClosure *pg,
       &td->details.known_coins.denom_sig),
     GNUNET_PQ_query_param_uint64 (
       &td->details.known_coins.denominations_serial),
+    TALER_PQ_query_param_amount (
+      &td->details.known_coins.remaining),
     GNUNET_PQ_query_param_end
   };
 
@@ -406,6 +414,8 @@ irbt_cb_table_refresh_commitments (struct PostgresClosure *pg,
       &td->details.refresh_commitments.noreveal_index),
     GNUNET_PQ_query_param_auto_from_type (
       &td->details.refresh_commitments.old_coin_pub),
+    GNUNET_PQ_query_param_auto_from_type (
+      &td->details.refresh_commitments.h_age_commitment),
     GNUNET_PQ_query_param_end
   };
 
@@ -498,9 +508,6 @@ static enum GNUNET_DB_QueryStatus
 irbt_cb_table_deposits (struct PostgresClosure *pg,
                         const struct TALER_EXCHANGEDB_TableData *td)
 {
-  uint8_t tiny = td->details.deposits.tiny ? 1 : 0;
-  uint8_t done = td->details.deposits.done ? 1 : 0;
-  uint8_t extension_blocked = td->details.deposits.extension_blocked ? 1 : 0;
   struct GNUNET_PQ_QueryParam params[] = {
     GNUNET_PQ_query_param_uint64 (&td->serial),
     GNUNET_PQ_query_param_uint64 (&td->details.deposits.shard),
@@ -517,10 +524,12 @@ irbt_cb_table_deposits (struct PostgresClosure *pg,
     GNUNET_PQ_query_param_auto_from_type (&td->details.deposits.coin_sig),
     GNUNET_PQ_query_param_auto_from_type (&td->details.deposits.wire_salt),
     GNUNET_PQ_query_param_uint64 (&td->details.deposits.wire_target_serial_id),
-    GNUNET_PQ_query_param_auto_from_type (&tiny),
-    GNUNET_PQ_query_param_auto_from_type (&done),
-    GNUNET_PQ_query_param_auto_from_type (&extension_blocked),
-    GNUNET_PQ_query_param_uint64 (
+    GNUNET_PQ_query_param_bool (td->details.deposits.tiny),
+    GNUNET_PQ_query_param_bool (td->details.deposits.done),
+    GNUNET_PQ_query_param_bool (td->details.deposits.extension_blocked),
+    0 == td->details.deposits.extension_details_serial_id
+    ? GNUNET_PQ_query_param_null ()
+    : GNUNET_PQ_query_param_uint64 (
       &td->details.deposits.extension_details_serial_id),
     GNUNET_PQ_query_param_end
   };

src/exchangedb/lrbt_callbacks.c

@@ -53,8 +53,8 @@ lrbt_cb_table_denominations (void *cls,
         "denom_type",
         &td.details.denominations.denom_type),
       GNUNET_PQ_result_spec_uint32 (
-        "age_restrictions",
-        &td.details.denominations.age_restrictions),
+        "age_mask",
+        &td.details.denominations.age_mask),
       TALER_PQ_result_spec_denom_pub (
         "denom_pub",
         &td.details.denominations.denom_pub),
@@ -175,6 +175,7 @@ lrbt_cb_table_wire_targets (void *cls,
 
   for (unsigned int i = 0; i<num_results; i++)
   {
+    bool no_xid;
     struct GNUNET_PQ_ResultSpec rs[] = {
       GNUNET_PQ_result_spec_uint64 ("serial",
                                     &td.serial),
@@ -182,8 +183,10 @@ lrbt_cb_table_wire_targets (void *cls,
                                     &td.details.wire_targets.payto_uri),
       GNUNET_PQ_result_spec_auto_from_type ("kyc_ok",
                                             &td.details.wire_targets.kyc_ok),
+      GNUNET_PQ_result_spec_allow_null (
         GNUNET_PQ_result_spec_string ("external_id",
                                       &td.details.wire_targets.external_id),
+        &no_xid),
       GNUNET_PQ_result_spec_end
     };
 
@@ -458,7 +461,6 @@ lrbt_cb_table_auditors (void *cls,
 
   for (unsigned int i = 0; i<num_results; i++)
   {
-    uint8_t is_active8 = 0;
     struct GNUNET_PQ_ResultSpec rs[] = {
       GNUNET_PQ_result_spec_uint64 ("serial",
                                     &td.serial),
@@ -468,8 +470,8 @@ lrbt_cb_table_auditors (void *cls,
                                     &td.details.auditors.auditor_url),
       GNUNET_PQ_result_spec_string ("auditor_name",
                                     &td.details.auditors.auditor_name),
-      GNUNET_PQ_result_spec_auto_from_type ("is_active",
-                                            &is_active8),
+      GNUNET_PQ_result_spec_bool ("is_active",
+                                  &td.details.auditors.is_active),
       GNUNET_PQ_result_spec_timestamp ("last_change",
                                        &td.details.auditors.last_change),
       GNUNET_PQ_result_spec_end
@@ -484,7 +486,6 @@ lrbt_cb_table_auditors (void *cls,
       ctx->error = true;
       return;
     }
-    td.details.auditors.is_active = (0 != is_active8);
     ctx->cb (ctx->cb_cls,
              &td);
     GNUNET_PQ_cleanup_result (rs);
@@ -658,6 +659,7 @@ lrbt_cb_table_known_coins (void *cls,
                            unsigned int num_results)
 {
   struct LookupRecordsByTableContext *ctx = cls;
+  struct PostgresClosure *pg = ctx->pg;
   struct TALER_EXCHANGEDB_TableData td = {
     .table = TALER_EXCHANGEDB_RT_KNOWN_COINS
   };
@@ -677,6 +679,9 @@ lrbt_cb_table_known_coins (void *cls,
       GNUNET_PQ_result_spec_uint64 (
         "denominations_serial",
         &td.details.known_coins.denominations_serial),
+      TALER_PQ_RESULT_SPEC_AMOUNT (
+        "remaining",
+        &td.details.known_coins.remaining),
       GNUNET_PQ_result_spec_end
     };
 
@@ -904,8 +909,7 @@ lrbt_cb_table_deposits (void *cls,
 
   for (unsigned int i = 0; i<num_results; i++)
   {
-    uint8_t tiny = 0; /* initialized to make compiler happy */
-    uint8_t done = 0; /* initialized to make compiler happy */
+    bool no_extension;
     struct GNUNET_PQ_ResultSpec rs[] = {
       GNUNET_PQ_result_spec_uint64 (
         "serial",
@@ -946,18 +950,20 @@ lrbt_cb_table_deposits (void *cls,
       GNUNET_PQ_result_spec_uint64 (
         "wire_target_serial_id",
         &td.details.deposits.wire_target_serial_id),
-      GNUNET_PQ_result_spec_auto_from_type (
+      GNUNET_PQ_result_spec_bool (
         "tiny",
         &td.details.deposits.tiny),
-      GNUNET_PQ_result_spec_auto_from_type (
+      GNUNET_PQ_result_spec_bool (
         "done",
         &td.details.deposits.done),
       GNUNET_PQ_result_spec_auto_from_type (
         "extension_blocked",
         &td.details.deposits.extension_blocked),
+      GNUNET_PQ_result_spec_allow_null (
         GNUNET_PQ_result_spec_uint64 (
           "extension_details_serial_id",
           &td.details.deposits.extension_details_serial_id),
+        &no_extension),
       GNUNET_PQ_result_spec_end
     };
 
@@ -970,8 +976,6 @@ lrbt_cb_table_deposits (void *cls,
       ctx->error = true;
       return;
     }
-    td.details.deposits.tiny = (0 != tiny);
-    td.details.deposits.done = (0 != done);
     ctx->cb (ctx->cb_cls,
              &td);
     GNUNET_PQ_cleanup_result (rs);

src/exchangedb/plugin_exchangedb_postgres.c

@@ -241,6 +241,7 @@ prepare_statements (struct PostgresClosure *pg)
       "denomination_iterate",
       "SELECT"
       " master_sig"
+      ",denom_pub_hash"
       ",valid_from"
       ",expire_withdraw"
       ",expire_deposit"
@@ -279,8 +280,9 @@ prepare_statements (struct PostgresClosure *pg)
       ",fee_refresh_frac"
       ",fee_refund_val"
       ",fee_refund_frac"
-      ",denom_pub"
+      ",denom_type"
       ",age_mask"
+      ",denom_pub"
       " FROM denominations"
       " LEFT JOIN "
       "   denomination_revocations USING (denominations_serial);",
@@ -611,7 +613,7 @@ prepare_statements (struct PostgresClosure *pg)
       ",out_zombie_bad AS zombie_required"
       ",out_noreveal_index AS noreveal_index"
       " FROM exchange_do_melt"
-      " ($1,$2,$3,$4,$5,$6,$7,$8,$9);",
+      " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10);",
       9),
     /* Used in #postgres_do_refund() to refund a deposit. */
     GNUNET_PQ_make_prepare (
@@ -730,7 +732,7 @@ prepare_statements (struct PostgresClosure *pg)
       "get_known_coin",
       "SELECT"
       " denominations.denom_pub_hash"
-      ",age_hash"
+      ",age_commitment_hash"
       ",denom_sig"
       " FROM known_coins"
       " JOIN denominations USING (denominations_serial)"
@@ -784,7 +786,7 @@ prepare_statements (struct PostgresClosure *pg)
       "  INSERT INTO known_coins "
       "  (coin_pub"
       "  ,denominations_serial"
-      "  ,age_hash"
+      "  ,age_commitment_hash"
       "  ,denom_sig"
       "  ,remaining_val"
       "  ,remaining_frac"
@@ -796,7 +798,7 @@ prepare_statements (struct PostgresClosure *pg)
       "    ,coin_val"
       "    ,coin_frac"
       "  FROM dd"
-      "  ON CONFLICT (coin_pub) DO NOTHING"
+      "  ON CONFLICT DO NOTHING" /* CONFLICT on (coin_pub) */
       "  RETURNING "
       "     known_coin_id"
       "  ) "
@@ -804,14 +806,14 @@ prepare_statements (struct PostgresClosure *pg)
       "   FALSE AS existed"
       "  ,known_coin_id"
       "  ,NULL AS denom_pub_hash"
-      "  ,NULL AS age_hash"
+      "  ,NULL AS age_commitment_hash"
       "  FROM ins "
       "UNION ALL "
       "SELECT "
       "   TRUE AS existed"
       "  ,known_coin_id"
       "  ,denom_pub_hash"
-      "  ,kc.age_hash"
+      "  ,kc.age_commitment_hash"
       "  FROM input_rows"
       "  JOIN known_coins kc USING (coin_pub)"
       "  JOIN denominations USING (denominations_serial)"
@@ -873,6 +875,7 @@ prepare_statements (struct PostgresClosure *pg)
       ",denoms.denom_pub_hash"
       ",denoms.fee_refresh_val"
       ",denoms.fee_refresh_frac"
+      ",h_age_commitment"
       ",melt_serial_id"
       " FROM refresh_commitments"
       " JOIN known_coins kc"
@@ -1065,6 +1068,7 @@ prepare_statements (struct PostgresClosure *pg)
       ",merchant_pub"
       ",denom.denom_pub"
       ",kc.coin_pub"
+      ",kc.age_commitment_hash"
       ",coin_sig"
       ",refund_deadline"
       ",wire_deadline"
@@ -1188,7 +1192,7 @@ prepare_statements (struct PostgresClosure *pg)
       ",denoms.fee_deposit_val"
       ",denoms.fee_deposit_frac"
       ",denoms.denom_pub_hash"
-      ",kc.age_hash"
+      ",kc.age_commitment_hash"
       ",wallet_timestamp"
       ",refund_deadline"
       ",wire_deadline"
@@ -1237,6 +1241,7 @@ prepare_statements (struct PostgresClosure *pg)
       " aggregation_serial_id"
       ",deposits.h_contract_terms"
       ",payto_uri"
+      ",h_payto"
       ",kc.coin_pub"
       ",deposits.merchant_pub"
       ",wire_out.execution_date"
@@ -1918,6 +1923,14 @@ prepare_statements (struct PostgresClosure *pg)
       " ORDER BY denom_revocations_serial_id DESC"
       " LIMIT 1;",
       0),
+    GNUNET_PQ_make_prepare (
+      "select_serial_by_table_wire_targets",
+      "SELECT"
+      " wire_target_serial_id AS serial"
+      " FROM wire_targets"
+      " ORDER BY wire_target_serial_id DESC"
+      " LIMIT 1;",
+      0),
     GNUNET_PQ_make_prepare (
       "select_serial_by_table_reserves",
       "SELECT"
@@ -2107,6 +2120,17 @@ prepare_statements (struct PostgresClosure *pg)
       " WHERE denom_revocations_serial_id > $1"
       " ORDER BY denom_revocations_serial_id ASC;",
       1),
+    GNUNET_PQ_make_prepare (
+      "select_above_serial_by_table_wire_targets",
+      "SELECT"
+      " wire_target_serial_id AS serial"
+      ",payto_uri"
+      ",kyc_ok"
+      ",external_id"
+      " FROM wire_targets"
+      " WHERE wire_target_serial_id > $1"
+      " ORDER BY wire_target_serial_id ASC;",
+      1),
     GNUNET_PQ_make_prepare (
       "select_above_serial_by_table_reserves",
       "SELECT"
@@ -2158,7 +2182,7 @@ prepare_statements (struct PostgresClosure *pg)
       ",h_blind_ev"
       ",denominations_serial"
       ",denom_sig"
-      ",reserve_pub"
+      ",reserve_uuid"
       ",reserve_sig"
       ",execution_date"
       ",amount_with_fee_val"
@@ -2222,6 +2246,8 @@ prepare_statements (struct PostgresClosure *pg)
       ",coin_pub"
       ",denom_sig"
       ",denominations_serial"
+      ",remaining_val"
+      ",remaining_frac"
       " FROM known_coins"
       " WHERE known_coin_id > $1"
       " ORDER BY known_coin_id ASC;",
@@ -2380,6 +2406,8 @@ prepare_statements (struct PostgresClosure *pg)
       "INSERT INTO denominations"
       "(denominations_serial"
       ",denom_pub_hash"
+      ",denom_type"
+      ",age_mask"
       ",denom_pub"
       ",master_sig"
       ",valid_from"
@@ -2396,11 +2424,10 @@ prepare_statements (struct PostgresClosure *pg)
       ",fee_refresh_frac"
       ",fee_refund_val"
       ",fee_refund_frac"
-      ",age_mask"
       ") VALUES "
       "($1, $2, $3, $4, $5, $6, $7, $8, $9, $10,"
-      " $11, $12, $13, $14, $15, $16, $17, $18, $19);",
-      19),
+      " $11, $12, $13, $14, $15, $16, $17, $18, $19, $20);",
+      20),
     GNUNET_PQ_make_prepare (
       "insert_into_table_denomination_revocations",
       "INSERT INTO denomination_revocations"
@@ -2410,6 +2437,17 @@ prepare_statements (struct PostgresClosure *pg)
       ") VALUES "
       "($1, $2, $3);",
       3),
+    GNUNET_PQ_make_prepare (
+      "insert_into_table_wire_targets",
+      "INSERT INTO wire_targets"
+      "(wire_target_serial_id"
+      ",h_payto"
+      ",payto_uri"
+      ",kyc_ok"
+      ",external_id"
+      ") VALUES "
+      "($1, $2, $3, $4, $5);",
+      5),
     GNUNET_PQ_make_prepare (
       "insert_into_table_reserves",
       "INSERT INTO reserves"
@@ -2516,9 +2554,11 @@ prepare_statements (struct PostgresClosure *pg)
       ",coin_pub"
       ",denom_sig"
       ",denominations_serial"
+      ",remaining_val"
+      ",remaining_frac"
       ") VALUES "
-      "($1, $2, $3, $4);",
-      4),
+      "($1, $2, $3, $4, $5, $6);",
+      6),
     GNUNET_PQ_make_prepare (
       "insert_into_table_refresh_commitments",
       "INSERT INTO refresh_commitments"
@@ -2529,8 +2569,9 @@ prepare_statements (struct PostgresClosure *pg)
       ",amount_with_fee_frac"
       ",noreveal_index"
       ",old_coin_pub"
+      ",h_age_commitment"
       ") VALUES "
-      "($1, $2, $3, $4, $5, $6, $7);",
+      "($1, $2, $3, $4, $5, $6, $7, $8);",
       7),
     GNUNET_PQ_make_prepare (
       "insert_into_table_refresh_revealed_coins",
@@ -3091,6 +3132,7 @@ postgres_insert_denomination_info (
   const struct TALER_EXCHANGEDB_DenominationKeyInformationP *issue)
 {
   struct PostgresClosure *pg = cls;
+  struct TALER_DenominationHashP denom_hash;
   struct GNUNET_PQ_QueryParam params[] = {
     GNUNET_PQ_query_param_auto_from_type (&issue->properties.denom_hash),
     TALER_PQ_query_param_denom_pub (denom_pub),
@@ -3104,13 +3146,18 @@ postgres_insert_denomination_info (
     TALER_PQ_query_param_amount_nbo (&issue->properties.fees.deposit),
     TALER_PQ_query_param_amount_nbo (&issue->properties.fees.refresh),
     TALER_PQ_query_param_amount_nbo (&issue->properties.fees.refund),
-    GNUNET_PQ_query_param_uint32 (&denom_pub->age_mask.mask),
+    GNUNET_PQ_query_param_uint32 (&denom_pub->age_mask.bits),
     GNUNET_PQ_query_param_end
   };
   struct TALER_DenomFeeSet fees;
 
-  GNUNET_assert (denom_pub->age_mask.mask == issue->age_mask.mask);
-
+  GNUNET_assert (denom_pub->age_mask.bits ==
+                 issue->age_mask.bits);
+  TALER_denom_pub_hash (denom_pub,
+                        &denom_hash);
+  GNUNET_assert (0 ==
+                 GNUNET_memcmp (&denom_hash,
+                                &issue->properties.denom_hash));
   GNUNET_assert (! GNUNET_TIME_absolute_is_zero (
                    GNUNET_TIME_timestamp_ntoh (
                      issue->properties.start).abs_time));
@@ -3147,7 +3194,7 @@ postgres_insert_denomination_info (
 static enum GNUNET_DB_QueryStatus
 postgres_get_denomination_info (
   void *cls,
-  const struct TALER_DenominationHash *denom_pub_hash,
+  const struct TALER_DenominationHashP *denom_pub_hash,
   struct TALER_EXCHANGEDB_DenominationKeyInformationP *issue)
 {
   struct PostgresClosure *pg = cls;
@@ -3178,7 +3225,7 @@ postgres_get_denomination_info (
     TALER_PQ_RESULT_SPEC_AMOUNT_NBO ("fee_refund",
                                      &issue->properties.fees.refund),
     GNUNET_PQ_result_spec_uint32 ("age_mask",
-                                  &issue->age_mask.mask),
+                                  &issue->age_mask.bits),
     GNUNET_PQ_result_spec_end
   };
 
@@ -3242,9 +3289,12 @@ domination_cb_helper (void *cls,
   {
     struct TALER_EXCHANGEDB_DenominationKeyInformationP issue;
     struct TALER_DenominationPublicKey denom_pub;
+    struct TALER_DenominationHashP denom_hash;
     struct GNUNET_PQ_ResultSpec rs[] = {
       GNUNET_PQ_result_spec_auto_from_type ("master_sig",
                                             &issue.signature),
+      GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
+                                            &denom_hash),
       GNUNET_PQ_result_spec_timestamp_nbo ("valid_from",
                                            &issue.properties.start),
       GNUNET_PQ_result_spec_timestamp_nbo ("expire_withdraw",
@@ -3266,7 +3316,7 @@ domination_cb_helper (void *cls,
       TALER_PQ_result_spec_denom_pub ("denom_pub",
                                       &denom_pub),
       GNUNET_PQ_result_spec_uint32 ("age_mask",
-                                    &issue.age_mask.mask),
+                                    &issue.age_mask.bits),
       GNUNET_PQ_result_spec_end
     };
 
@@ -3295,9 +3345,18 @@ domination_cb_helper (void *cls,
       = htonl (TALER_SIGNATURE_MASTER_DENOMINATION_KEY_VALIDITY);
     TALER_denom_pub_hash (&denom_pub,
                           &issue.properties.denom_hash);
+    if (0 !=
+        GNUNET_memcmp (&issue.properties.denom_hash,
+                       &denom_hash))
+    {
+      GNUNET_break (0);
+    }
+    else
+    {
       dic->cb (dic->cb_cls,
                &denom_pub,
                &issue);
+    }
     TALER_denom_pub_free (&denom_pub);
   }
 }
@@ -3377,7 +3436,7 @@ dominations_cb_helper (void *cls,
     struct TALER_EXCHANGEDB_DenominationKeyMetaData meta = {0};
     struct TALER_DenominationPublicKey denom_pub = {0};
     struct TALER_MasterSignatureP master_sig = {0};
-    struct TALER_DenominationHash h_denom_pub = {0};
+    struct TALER_DenominationHashP h_denom_pub = {0};
     bool revoked;
     struct GNUNET_PQ_ResultSpec rs[] = {
       GNUNET_PQ_result_spec_auto_from_type ("master_sig",
@@ -3405,7 +3464,7 @@ dominations_cb_helper (void *cls,
       TALER_PQ_result_spec_denom_pub ("denom_pub",
                                       &denom_pub),
       GNUNET_PQ_result_spec_uint32 ("age_mask",
-                                    &meta.age_mask.mask),
+                                    &meta.age_mask.bits),
       GNUNET_PQ_result_spec_end
     };
 
@@ -3702,7 +3761,7 @@ auditor_denoms_cb_helper (void *cls,
   for (unsigned int i = 0; i<num_results; i++)
   {
     struct TALER_AuditorPublicKeyP auditor_pub;
-    struct TALER_DenominationHash h_denom_pub;
+    struct TALER_DenominationHashP h_denom_pub;
     struct TALER_AuditorSignatureP auditor_sig;
     struct GNUNET_PQ_ResultSpec rs[] = {
       GNUNET_PQ_result_spec_auto_from_type ("auditor_pub",
@@ -3870,7 +3929,7 @@ postgres_set_kyc_ok (void *cls,
 static enum GNUNET_DB_QueryStatus
 postgres_select_kyc_status (void *cls,
                             uint64_t payment_target_uuid,
-                            struct TALER_PaytoHash *h_payto,
+                            struct TALER_PaytoHashP *h_payto,
                             struct TALER_EXCHANGEDB_KycStatus *kyc)
 {
   struct PostgresClosure *pg = cls;
@@ -3911,7 +3970,7 @@ inselect_account_kyc_status (
   struct TALER_EXCHANGEDB_KycStatus *kyc)
 {
 
-  struct TALER_PaytoHash h_payto;
+  struct TALER_PaytoHashP h_payto;
   enum GNUNET_DB_QueryStatus qs;
 
   TALER_payto_hash (payto_uri,
@@ -4330,7 +4389,7 @@ postgres_reserves_in_insert (void *cls,
 static enum GNUNET_DB_QueryStatus
 postgres_get_withdraw_info (
   void *cls,
-  const struct TALER_BlindedCoinHash *bch,
+  const struct TALER_BlindedCoinHashP *bch,
   struct TALER_EXCHANGEDB_CollectableBlindcoin *collectable)
 {
   struct PostgresClosure *pg = cls;
@@ -4516,7 +4575,7 @@ postgres_do_deposit (
   void *cls,
   const struct TALER_EXCHANGEDB_Deposit *deposit,
   uint64_t known_coin_id,
-  const struct TALER_PaytoHash *h_payto,
+  const struct TALER_PaytoHashP *h_payto,
   bool extension_blocked,
   struct GNUNET_TIME_Timestamp *exchange_timestamp,
   bool *balance_ok,
@@ -4593,6 +4652,7 @@ postgres_do_melt (
     GNUNET_PQ_query_param_auto_from_type (&refresh->coin.coin_pub),
     GNUNET_PQ_query_param_auto_from_type (&refresh->coin_sig),
     GNUNET_PQ_query_param_uint64 (&known_coin_id),
+    GNUNET_PQ_query_param_auto_from_type (&refresh->coin.h_age_commitment),
     GNUNET_PQ_query_param_uint32 (&refresh->noreveal_index),
     GNUNET_PQ_query_param_bool (*zombie_required),
     GNUNET_PQ_query_param_end
@@ -5241,8 +5301,8 @@ postgres_get_reserve_history (void *cls,
 static enum GNUNET_DB_QueryStatus
 postgres_have_deposit2 (
   void *cls,
-  const struct TALER_PrivateContractHash *h_contract_terms,
-  const struct TALER_MerchantWireHash *h_wire,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
+  const struct TALER_MerchantWireHashP *h_wire,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   const struct TALER_MerchantPublicKeyP *merchant,
   struct GNUNET_TIME_Timestamp refund_deadline,
@@ -5277,7 +5337,7 @@ postgres_have_deposit2 (
     GNUNET_PQ_result_spec_end
   };
   enum GNUNET_DB_QueryStatus qs;
-  struct TALER_MerchantWireHash h_wire2;
+  struct TALER_MerchantWireHashP h_wire2;
 #if EXPLICIT_LOCKS
   struct GNUNET_PQ_QueryParam no_params[] = {
     GNUNET_PQ_query_param_end
@@ -5402,7 +5462,7 @@ postgres_get_ready_deposit (void *cls,
   };
   struct TALER_Amount amount_with_fee;
   struct TALER_Amount deposit_fee;
-  struct TALER_PrivateContractHash h_contract_terms;
+  struct TALER_PrivateContractHashP h_contract_terms;
   struct TALER_MerchantPublicKeyP merchant_pub;
   struct TALER_CoinSpendPublicKeyP coin_pub;
   uint64_t serial_id;
@@ -5527,7 +5587,7 @@ match_deposit_cb (void *cls,
   {
     struct TALER_Amount amount_with_fee;
     struct TALER_Amount deposit_fee;
-    struct TALER_PrivateContractHash h_contract_terms;
+    struct TALER_PrivateContractHashP h_contract_terms;
     struct TALER_CoinSpendPublicKeyP coin_pub;
     uint64_t serial_id;
     enum GNUNET_DB_QueryStatus qs;
@@ -5641,14 +5701,13 @@ postgres_get_known_coin (void *cls,
     GNUNET_PQ_query_param_auto_from_type (coin_pub),
     GNUNET_PQ_query_param_end
   };
-  bool is_null;
   struct GNUNET_PQ_ResultSpec rs[] = {
     GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
                                           &coin_info->denom_pub_hash),
     GNUNET_PQ_result_spec_allow_null (
-      GNUNET_PQ_result_spec_auto_from_type ("age_hash",
+      GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash",
                                             &coin_info->h_age_commitment),
-      &is_null),
+      &coin_info->no_age_commitment),
     TALER_PQ_result_spec_denom_sig ("denom_sig",
                                     &coin_info->denom_sig),
     GNUNET_PQ_result_spec_end
@@ -5679,7 +5738,7 @@ postgres_get_coin_denomination (
   void *cls,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   uint64_t *known_coin_id,
-  struct TALER_DenominationHash *denom_hash)
+  struct TALER_DenominationHashP *denom_hash)
 {
   struct PostgresClosure *pg = cls;
   struct GNUNET_PQ_QueryParam params[] = {
@@ -5713,7 +5772,8 @@ postgres_get_coin_denomination (
  */
 static long long
 postgres_count_known_coins (void *cls,
-                            const struct TALER_DenominationHash *denom_pub_hash)
+                            const struct
+                            TALER_DenominationHashP *denom_pub_hash)
 {
   struct PostgresClosure *pg = cls;
   uint64_t count;
@@ -5746,15 +5806,15 @@ postgres_count_known_coins (void *cls,
  * @param[out] known_coin_id set to the unique row of the coin
  * @param[out] denom_hash set to the denomination hash of the existing
  *             coin (for conflict error reporting)
- * @param[out] age_hash set to the conflicting age hash on conflict
+ * @param[out] h_age_commitment  set to the conflicting age commitment hash on conflict
  * @return database transaction status, non-negative on success
  */
 static enum TALER_EXCHANGEDB_CoinKnownStatus
 postgres_ensure_coin_known (void *cls,
                             const struct TALER_CoinPublicInfo *coin,
                             uint64_t *known_coin_id,
-                            struct TALER_DenominationHash *denom_hash,
-                            struct TALER_AgeCommitmentHash *age_hash)
+                            struct TALER_DenominationHashP *denom_hash,
+                            struct TALER_AgeCommitmentHash *h_age_commitment)
 {
   struct PostgresClosure *pg = cls;
   enum GNUNET_DB_QueryStatus qs;
@@ -5778,8 +5838,8 @@ postgres_ensure_coin_known (void *cls,
                                             denom_hash),
       &is_denom_pub_hash_null),
     GNUNET_PQ_result_spec_allow_null (
-      GNUNET_PQ_result_spec_auto_from_type ("age_hash",
-                                            age_hash),
+      GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash",
+                                            h_age_commitment),
       &is_age_hash_null),
     GNUNET_PQ_result_spec_end
   };
@@ -5813,10 +5873,10 @@ postgres_ensure_coin_known (void *cls,
   }
 
   if ( (! is_age_hash_null) &&
-       (0 != GNUNET_memcmp (age_hash,
+       (0 != GNUNET_memcmp (h_age_commitment,
                             &coin->h_age_commitment)) )
   {
-    GNUNET_break (GNUNET_is_zero (age_hash));
+    GNUNET_break (GNUNET_is_zero (h_age_commitment));
     GNUNET_break_op (0);
     return TALER_EXCHANGEDB_CKS_AGE_CONFLICT;
   }
@@ -5998,7 +6058,7 @@ postgres_select_refunds_by_coin (
   void *cls,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   const struct TALER_MerchantPublicKeyP *merchant_pub,
-  const struct TALER_PrivateContractHash *h_contract,
+  const struct TALER_PrivateContractHashP *h_contract,
   TALER_EXCHANGEDB_RefundCoinCallback cb,
   void *cb_cls)
 {
@@ -6065,7 +6125,7 @@ postgres_get_melt (void *cls,
                                           &melt->session.coin_sig),
     GNUNET_PQ_result_spec_allow_null (
       GNUNET_PQ_result_spec_auto_from_type ("h_age_commitment",
-                                            &melt->session.h_age_commitment),
+                                            &melt->session.coin.h_age_commitment),
       &h_age_commitment_is_null),
     TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
                                  &melt->session.amount_with_fee),
@@ -6083,9 +6143,9 @@ postgres_get_melt (void *cls,
                                                  params,
                                                  rs);
   if (h_age_commitment_is_null)
-    memset (&melt->session.h_age_commitment,
+    memset (&melt->session.coin.h_age_commitment,
             0,
-            sizeof(melt->session.h_age_commitment));
+            sizeof(melt->session.coin.h_age_commitment));
 
   melt->session.rc = *rc;
   return qs;
@@ -6233,7 +6293,8 @@ add_revealed_coins (void *cls,
     {
       struct TALER_EXCHANGEDB_RefreshRevealedCoin *rrc = &grctx->rrcs[off];
       struct GNUNET_PQ_ResultSpec rsi[] = {
-        GNUNET_PQ_result_spec_auto_from_type ("h_denom_pub",
+        /* NOTE: freshcoin_index selected and discarded here... */
+        GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
                                               &rrc->h_denom_pub),
         GNUNET_PQ_result_spec_auto_from_type ("link_sig",
                                               &rrc->orig_coin_link_sig),
@@ -6586,7 +6647,6 @@ add_coin_deposit (void *cls,
     struct TALER_EXCHANGEDB_DepositListEntry *deposit;
     struct TALER_EXCHANGEDB_TransactionList *tl;
     uint64_t serial_id;
-    bool is_null;
 
     chc->have_deposit_or_melt = true;
     deposit = GNUNET_new (struct TALER_EXCHANGEDB_DepositListEntry);
@@ -6599,9 +6659,9 @@ add_coin_deposit (void *cls,
         GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
                                               &deposit->h_denom_pub),
         GNUNET_PQ_result_spec_allow_null (
-          GNUNET_PQ_result_spec_auto_from_type ("age_hash",
+          GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash",
                                                 &deposit->h_age_commitment),
-          &is_null),
+          &deposit->no_age_commitment),
         GNUNET_PQ_result_spec_timestamp ("wallet_timestamp",
                                          &deposit->timestamp),
         GNUNET_PQ_result_spec_timestamp ("refund_deadline",
@@ -6683,6 +6743,10 @@ add_coin_melt (void *cls,
                                      &melt->amount_with_fee),
         TALER_PQ_RESULT_SPEC_AMOUNT ("fee_refresh",
                                      &melt->melt_fee),
+        GNUNET_PQ_result_spec_allow_null (
+          GNUNET_PQ_result_spec_auto_from_type ("h_age_commitment",
+                                                &melt->h_age_commitment),
+          &melt->no_age_commitment),
         GNUNET_PQ_result_spec_uint64 ("melt_serial_id",
                                       &serial_id),
         GNUNET_PQ_result_spec_end
@@ -6698,6 +6762,7 @@ add_coin_melt (void *cls,
         chc->failed = true;
         return;
       }
+
     }
     tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
     tl->next = chc->head;
@@ -7130,8 +7195,9 @@ handle_wt_result (void *cls,
   for (unsigned int i = 0; i<num_results; i++)
   {
     uint64_t rowid;
-    struct TALER_PrivateContractHash h_contract_terms;
+    struct TALER_PrivateContractHashP h_contract_terms;
     struct TALER_CoinSpendPublicKeyP coin_pub;
+    struct TALER_PaytoHashP h_payto;
     struct TALER_MerchantPublicKeyP merchant_pub;
     struct GNUNET_TIME_Timestamp exec_time;
     struct TALER_Amount amount_with_fee;
@@ -7144,6 +7210,8 @@ handle_wt_result (void *cls,
                                             &h_contract_terms),
       GNUNET_PQ_result_spec_string ("payto_uri",
                                     &payto_uri),
+      GNUNET_PQ_result_spec_auto_from_type ("h_payto",
+                                            &h_payto),
       TALER_PQ_result_spec_denom_pub ("denom_pub",
                                       &denom_pub),
       GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
@@ -7172,6 +7240,7 @@ handle_wt_result (void *cls,
              rowid,
              &merchant_pub,
              payto_uri,
+             &h_payto,
              exec_time,
              &h_contract_terms,
              &denom_pub,
@@ -7246,8 +7315,8 @@ postgres_lookup_wire_transfer (
 static enum GNUNET_DB_QueryStatus
 postgres_lookup_transfer_by_deposit (
   void *cls,
-  const struct TALER_PrivateContractHash *h_contract_terms,
-  const struct TALER_MerchantWireHash *h_wire,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
+  const struct TALER_MerchantWireHashP *h_wire,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   const struct TALER_MerchantPublicKeyP *merchant_pub,
   bool *pending,
@@ -7290,7 +7359,7 @@ postgres_lookup_transfer_by_deposit (
                                                  rs);
   if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs)
   {
-    struct TALER_MerchantWireHash wh;
+    struct TALER_MerchantWireHashP wh;
 
     TALER_merchant_wire_signature_hash (payto_uri,
                                         &wire_salt,
@@ -7347,7 +7416,7 @@ postgres_lookup_transfer_by_deposit (
                                                    rs2);
     if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs)
     {
-      struct TALER_MerchantWireHash wh;
+      struct TALER_MerchantWireHashP wh;
 
       TALER_merchant_wire_signature_hash (payto_uri,
                                           &wire_salt,
@@ -7942,7 +8011,22 @@ postgres_start_deferred_wire_out (void *cls)
   struct PostgresClosure *pg = cls;
   struct GNUNET_PQ_ExecuteStatement es[] = {
     GNUNET_PQ_make_execute ("START TRANSACTION ISOLATION LEVEL READ COMMITTED"),
-    GNUNET_PQ_make_execute ("SET CONSTRAINTS wire_out_ref DEFERRED"),
+    GNUNET_PQ_make_execute ("DO $$"
+                            "BEGIN"
+                            " IF EXISTS ("
+                            "   SELECT 1"
+                            "     FROM information_Schema.constraint_column_usage"
+                            "    WHERE table_name='wire_out'"
+                            "      AND constraint_name='wire_out_ref')"
+                            "  THEN "
+                            "  SET CONSTRAINTS wire_out_ref DEFERRED;"
+                            "  END IF;"
+                            "END $$"),
+    // FIXME: above logic is better as it tests that the constraint
+    // is actually applicable; but maybe we want to drop the constraint
+    // entirely once do_gc() is fixed to do without it?
+    //    GNUNET_PQ_make_execute ("CALL defer_wire_out()"),
+    //    GNUNET_PQ_make_execute ("SET CONSTRAINTS wire_out_ref DEFERRED;"),
     GNUNET_PQ_EXECUTE_STATEMENT_END
   };
 
@@ -8124,6 +8208,10 @@ deposit_serial_helper_cb (void *cls,
                                       &denom_pub),
       GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
                                             &deposit.coin.coin_pub),
+      GNUNET_PQ_result_spec_allow_null (
+        GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash",
+                                              &deposit.coin.h_age_commitment),
+        &deposit.coin.no_age_commitment),
       GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
                                             &deposit.csig),
       GNUNET_PQ_result_spec_timestamp ("refund_deadline",
@@ -8144,6 +8232,9 @@ deposit_serial_helper_cb (void *cls,
     };
     int ret;
 
+    memset (&deposit,
+            0,
+            sizeof (deposit));
     if (GNUNET_OK !=
         GNUNET_PQ_extract_result (result,
                                   rs,
@@ -8711,7 +8802,7 @@ reserves_out_serial_helper_cb (void *cls,
 
   for (unsigned int i = 0; i<num_results; i++)
   {
-    struct TALER_BlindedCoinHash h_blind_ev;
+    struct TALER_BlindedCoinHashP h_blind_ev;
     struct TALER_DenominationPublicKey denom_pub;
     struct TALER_ReservePublicKeyP reserve_pub;
     struct TALER_ReserveSignatureP reserve_sig;
@@ -9028,7 +9119,7 @@ recoup_serial_helper_cb (void *cls,
     union TALER_DenominationBlindingKeyP coin_blind;
     struct TALER_Amount amount;
     struct TALER_DenominationPublicKey denom_pub;
-    struct TALER_BlindedCoinHash h_blind_ev;
+    struct TALER_BlindedCoinHashP h_blind_ev;
     struct GNUNET_TIME_Timestamp timestamp;
     struct GNUNET_PQ_ResultSpec rs[] = {
       GNUNET_PQ_result_spec_uint64 ("recoup_uuid",
@@ -9175,9 +9266,9 @@ recoup_refresh_serial_helper_cb (void *cls,
     struct TALER_CoinSpendSignatureP coin_sig;
     union TALER_DenominationBlindingKeyP coin_blind;
     struct TALER_DenominationPublicKey denom_pub;
-    struct TALER_DenominationHash old_denom_pub_hash;
+    struct TALER_DenominationHashP old_denom_pub_hash;
     struct TALER_Amount amount;
-    struct TALER_BlindedCoinHash h_blind_ev;
+    struct TALER_BlindedCoinHashP h_blind_ev;
     struct GNUNET_TIME_Timestamp timestamp;
     struct GNUNET_PQ_ResultSpec rs[] = {
       GNUNET_PQ_result_spec_uint64 ("recoup_refresh_uuid",
@@ -9425,7 +9516,7 @@ postgres_select_reserve_closed_above_serial_id (
 static enum GNUNET_DB_QueryStatus
 postgres_get_reserve_by_h_blind (
   void *cls,
-  const struct TALER_BlindedCoinHash *bch,
+  const struct TALER_BlindedCoinHashP *bch,
   struct TALER_ReservePublicKeyP *reserve_pub,
   uint64_t *reserve_out_serial_id)
 {
@@ -9462,7 +9553,7 @@ postgres_get_reserve_by_h_blind (
 static enum GNUNET_DB_QueryStatus
 postgres_get_old_coin_by_h_blind (
   void *cls,
-  const struct TALER_BlindedCoinHash *h_blind_ev,
+  const struct TALER_BlindedCoinHashP *h_blind_ev,
   struct TALER_CoinSpendPublicKeyP *old_coin_pub,
   uint64_t *rrc_serial)
 {
@@ -9498,7 +9589,7 @@ postgres_get_old_coin_by_h_blind (
 static enum GNUNET_DB_QueryStatus
 postgres_insert_denomination_revocation (
   void *cls,
-  const struct TALER_DenominationHash *denom_pub_hash,
+  const struct TALER_DenominationHashP *denom_pub_hash,
   const struct TALER_MasterSignatureP *master_sig)
 {
   struct PostgresClosure *pg = cls;
@@ -9527,7 +9618,7 @@ postgres_insert_denomination_revocation (
 static enum GNUNET_DB_QueryStatus
 postgres_get_denomination_revocation (
   void *cls,
-  const struct TALER_DenominationHash *denom_pub_hash,
+  const struct TALER_DenominationHashP *denom_pub_hash,
   struct TALER_MasterSignatureP *master_sig,
   uint64_t *rowid)
 {
@@ -10210,7 +10301,7 @@ postgres_lookup_signkey_revocation (
 static enum GNUNET_DB_QueryStatus
 postgres_lookup_denomination_key (
   void *cls,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta)
 {
   struct PostgresClosure *pg = cls;
@@ -10238,7 +10329,7 @@ postgres_lookup_denomination_key (
     TALER_PQ_RESULT_SPEC_AMOUNT ("fee_refund",
                                  &meta->fees.refund),
     GNUNET_PQ_result_spec_uint32 ("age_mask",
-                                  &meta->age_mask.mask),
+                                  &meta->age_mask.bits),
     GNUNET_PQ_result_spec_end
   };
 
@@ -10263,7 +10354,7 @@ postgres_lookup_denomination_key (
 static enum GNUNET_DB_QueryStatus
 postgres_add_denomination_key (
   void *cls,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_DenominationPublicKey *denom_pub,
   const struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta,
   const struct TALER_MasterSignatureP *master_sig)
@@ -10282,7 +10373,7 @@ postgres_add_denomination_key (
     TALER_PQ_query_param_amount (&meta->fees.deposit),
     TALER_PQ_query_param_amount (&meta->fees.refresh),
     TALER_PQ_query_param_amount (&meta->fees.refund),
-    GNUNET_PQ_query_param_uint32 (&meta->age_mask.mask),
+    GNUNET_PQ_query_param_uint32 (&meta->age_mask.bits),
     GNUNET_PQ_query_param_end
   };
 
@@ -10376,7 +10467,7 @@ postgres_lookup_signing_key (
 static enum GNUNET_DB_QueryStatus
 postgres_insert_auditor_denom_sig (
   void *cls,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_AuditorPublicKeyP *auditor_pub,
   const struct TALER_AuditorSignatureP *auditor_sig)
 {
@@ -10406,7 +10497,7 @@ postgres_insert_auditor_denom_sig (
 static enum GNUNET_DB_QueryStatus
 postgres_select_auditor_denom_sig (
   void *cls,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_AuditorPublicKeyP *auditor_pub,
   struct TALER_AuditorSignatureP *auditor_sig)
 {
@@ -10612,6 +10703,9 @@ postgres_lookup_serial_by_table (void *cls,
   case TALER_EXCHANGEDB_RT_DENOMINATION_REVOCATIONS:
     statement = "select_serial_by_table_denomination_revocations";
     break;
+  case TALER_EXCHANGEDB_RT_WIRE_TARGETS:
+    statement = "select_serial_by_table_wire_targets";
+    break;
   case TALER_EXCHANGEDB_RT_RESERVES:
     statement = "select_serial_by_table_reserves";
     break;
@@ -10845,9 +10939,17 @@ postgres_lookup_records_by_table (void *cls,
                                              rh,
                                              &ctx);
   if (qs < 0)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Failed to run `%s'\n",
+                statement);
     return qs;
+  }
   if (ctx.error)
+  {
+    GNUNET_break (0);
     return GNUNET_DB_STATUS_HARD_ERROR;
+  }
   return qs;
 }
 

src/exchangedb/test_exchangedb.c

@@ -536,8 +536,9 @@ cb_wt_never (void *cls,
              uint64_t serial_id,
              const struct TALER_MerchantPublicKeyP *merchant_pub,
              const char *account_payto_uri,
+             const struct TALER_PaytoHashP *h_payto,
              struct GNUNET_TIME_Timestamp exec_time,
-             const struct TALER_PrivateContractHash *h_contract_terms,
+             const struct TALER_PrivateContractHashP *h_contract_terms,
              const struct TALER_DenominationPublicKey *denom_pub,
              const struct TALER_CoinSpendPublicKeyP *coin_pub,
              const struct TALER_Amount *coin_value,
@@ -558,8 +559,8 @@ cb_wt_never (void *cls,
 
 
 static struct TALER_MerchantPublicKeyP merchant_pub_wt;
-static struct TALER_MerchantWireHash h_wire_wt;
-static struct TALER_PrivateContractHash h_contract_terms_wt;
+static struct TALER_MerchantWireHashP h_wire_wt;
+static struct TALER_PrivateContractHashP h_contract_terms_wt;
 static struct TALER_CoinSpendPublicKeyP coin_pub_wt;
 static struct TALER_Amount coin_value_wt;
 static struct TALER_Amount coin_fee_wt;
@@ -576,8 +577,9 @@ cb_wt_check (void *cls,
              uint64_t rowid,
              const struct TALER_MerchantPublicKeyP *merchant_pub,
              const char *account_payto_uri,
+             const struct TALER_PaytoHashP *h_payto,
              struct GNUNET_TIME_Timestamp exec_time,
-             const struct TALER_PrivateContractHash *h_contract_terms,
+             const struct TALER_PrivateContractHashP *h_contract_terms,
              const struct TALER_DenominationPublicKey *denom_pub,
              const struct TALER_CoinSpendPublicKeyP *coin_pub,
              const struct TALER_Amount *coin_value,
@@ -639,7 +641,7 @@ deposit_cb (void *cls,
             const struct TALER_CoinSpendPublicKeyP *coin_pub,
             const struct TALER_Amount *amount_with_fee,
             const struct TALER_Amount *deposit_fee,
-            const struct TALER_PrivateContractHash *h_contract_terms,
+            const struct TALER_PrivateContractHashP *h_contract_terms,
             uint64_t wire_target,
             const char *payto_uri)
 {
@@ -686,7 +688,7 @@ matching_deposit_cb (void *cls,
                      const struct TALER_CoinSpendPublicKeyP *coin_pub,
                      const struct TALER_Amount *amount_with_fee,
                      const struct TALER_Amount *deposit_fee,
-                     const struct TALER_PrivateContractHash *h_contract_terms)
+                     const struct TALER_PrivateContractHashP *h_contract_terms)
 {
   struct TALER_EXCHANGEDB_Deposit *deposit = cls;
 
@@ -761,7 +763,7 @@ audit_refund_cb (void *cls,
                  const struct TALER_CoinSpendPublicKeyP *coin_pub,
                  const struct TALER_MerchantPublicKeyP *merchant_pub,
                  const struct TALER_MerchantSignatureP *merchant_sig,
-                 const struct TALER_PrivateContractHash *h_contract_terms,
+                 const struct TALER_PrivateContractHashP *h_contract_terms,
                  uint64_t rtransaction_id,
                  const struct TALER_Amount *amount_with_fee)
 {
@@ -828,7 +830,7 @@ audit_reserve_in_cb (void *cls,
 static enum GNUNET_GenericReturnValue
 audit_reserve_out_cb (void *cls,
                       uint64_t rowid,
-                      const struct TALER_BlindedCoinHash *h_blind_ev,
+                      const struct TALER_BlindedCoinHashP *h_blind_ev,
                       const struct TALER_DenominationPublicKey *denom_pub,
                       const struct TALER_ReservePublicKeyP *reserve_pub,
                       const struct TALER_ReserveSignatureP *reserve_sig,
@@ -860,7 +862,7 @@ test_gc (void)
   struct GNUNET_TIME_Timestamp now;
   struct GNUNET_TIME_Timestamp past;
   struct TALER_EXCHANGEDB_DenominationKeyInformationP issue2;
-  struct TALER_DenominationHash denom_hash;
+  struct TALER_DenominationHashP denom_hash;
 
   now = GNUNET_TIME_timestamp_get ();
   past = GNUNET_TIME_absolute_to_timestamp (
@@ -1079,7 +1081,8 @@ test_wire_out (const struct TALER_EXCHANGEDB_Deposit *deposit)
                                         NULL));
 
   {
-    struct TALER_PrivateContractHash h_contract_terms_wt2 = h_contract_terms_wt;
+    struct TALER_PrivateContractHashP h_contract_terms_wt2 =
+      h_contract_terms_wt;
     bool pending;
     struct TALER_WireTransferIdentifierRawP wtid2;
     struct TALER_Amount coin_contribution2;
@@ -1335,7 +1338,7 @@ run (void *cls)
   enum GNUNET_DB_QueryStatus qs;
   struct GNUNET_TIME_Timestamp now;
   struct TALER_WireSaltP salt;
-  struct TALER_CoinPubHash c_hash;
+  struct TALER_CoinPubHashP c_hash;
   uint64_t known_coin_id;
   uint64_t rrc_serial;
   struct TALER_EXCHANGEDB_Refresh refresh;
@@ -1490,6 +1493,7 @@ run (void *cls)
         TALER_denom_sign_blinded (
           &cbc.sig,
           &dkp->priv,
+          false,
           &pd.blinded_planchet));
       TALER_blinded_planchet_free (&pd.blinded_planchet);
     }
@@ -1579,7 +1583,7 @@ run (void *cls)
                                           &dkp->pub));
   deadline = GNUNET_TIME_timestamp_get ();
   {
-    struct TALER_DenominationHash dph;
+    struct TALER_DenominationHashP dph;
     struct TALER_AgeCommitmentHash agh;
 
     FAILIF (TALER_EXCHANGEDB_CKS_ADDED !=
@@ -1596,7 +1600,7 @@ run (void *cls)
       = GNUNET_TIME_timestamp_get ();
     bool balance_ok;
     bool in_conflict;
-    struct TALER_PaytoHash h_payto;
+    struct TALER_PaytoHashP h_payto;
 
     RND_BLK (&h_payto);
     deposit.refund_deadline
@@ -1759,6 +1763,7 @@ run (void *cls)
       GNUNET_assert (GNUNET_OK ==
                      TALER_denom_sign_blinded (&ccoin->coin_sig,
                                                &new_dkp[cnt]->priv,
+                                               true,
                                                bp));
     }
     RND_BLK (&tprivs);
@@ -1777,9 +1782,9 @@ run (void *cls)
                                            tprivs,
                                            &tpub));
     {
-      struct TALER_BlindedCoinHash h_coin_ev;
+      struct TALER_BlindedCoinHashP h_coin_ev;
       struct TALER_CoinSpendPublicKeyP ocp;
-      struct TALER_DenominationHash denom_hash;
+      struct TALER_DenominationHashP denom_hash;
 
       TALER_denom_pub_hash (&new_denom_pubs[0],
                             &denom_hash);
@@ -1827,7 +1832,7 @@ run (void *cls)
     union TALER_DenominationBlindingKeyP coin_bks;
     uint64_t new_known_coin_id;
     struct TALER_CoinPublicInfo new_coin;
-    struct TALER_DenominationHash dph;
+    struct TALER_DenominationHashP dph;
     struct TALER_AgeCommitmentHash agh;
     bool recoup_ok;
     bool internal_failure;
@@ -2181,7 +2186,7 @@ run (void *cls)
   result = 8;
   {
     uint64_t known_coin_id;
-    struct TALER_DenominationHash dph;
+    struct TALER_DenominationHashP dph;
     struct TALER_AgeCommitmentHash agh;
 
     FAILIF (TALER_EXCHANGEDB_CKS_ADDED !=
@@ -2195,7 +2200,7 @@ run (void *cls)
     struct GNUNET_TIME_Timestamp now;
     struct GNUNET_TIME_Timestamp r;
     struct TALER_Amount deposit_fee;
-    struct TALER_MerchantWireHash h_wire;
+    struct TALER_MerchantWireHashP h_wire;
 
     now = GNUNET_TIME_timestamp_get ();
     FAILIF (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT !=
@@ -2299,7 +2304,7 @@ run (void *cls)
                          "test-2"));
   RND_BLK (&deposit2.merchant_pub); /* should fail if merchant is different */
   {
-    struct TALER_MerchantWireHash h_wire;
+    struct TALER_MerchantWireHashP h_wire;
     struct GNUNET_TIME_Timestamp r;
     struct TALER_Amount deposit_fee;
 

src/extensions/extension_age_restriction.c

@@ -64,7 +64,7 @@ TALER_parse_age_group_string (
       if (prev >= val)
         return GNUNET_SYSERR;
 
-      mask->mask |= 1 << val;
+      mask->bits |= 1 << val;
       prev = val;
       val = 0;
       continue;
@@ -82,8 +82,8 @@ TALER_parse_age_group_string (
   if (0>val || 32<=val || prev>=val)
     return GNUNET_SYSERR;
 
-  mask->mask |= (1 << val);
-  mask->mask |= 1; // mark zeroth group, too
+  mask->bits |= (1 << val);
+  mask->bits |= 1; // mark zeroth group, too
 
   return GNUNET_OK;
 }
@@ -100,7 +100,7 @@ char *
 TALER_age_mask_to_string (
   const struct TALER_AgeMask *m)
 {
-  uint32_t mask = m->mask;
+  uint32_t bits = m->bits;
   unsigned int n = 0;
   char *buf = GNUNET_malloc (32 * 3); // max characters possible
   char *pos = buf;
@@ -110,11 +110,11 @@ TALER_age_mask_to_string (
     return buf;
   }
 
-  while (mask != 0)
+  while (bits != 0)
   {
-    mask >>= 1;
+    bits >>= 1;
     n++;
-    if (0 == (mask & 1))
+    if (0 == (bits & 1))
     {
       continue;
     }
@@ -125,7 +125,7 @@ TALER_age_mask_to_string (
     }
     *(pos++) = '0' + n % 10;
 
-    if (0 != (mask >> 1))
+    if (0 != (bits >> 1))
     {
       *(pos++) = ':';
     }
@@ -160,7 +160,7 @@ age_restriction_disable (
     this->config_json = NULL;
   }
 
-  _config.mask.mask = 0;
+  _config.mask.bits = 0;
   _config.num_groups = 0;
 }
 
@@ -212,23 +212,23 @@ age_restriction_load_taler_config (
     return GNUNET_SYSERR;
 
 
-  mask.mask = TALER_EXTENSION_AGE_RESTRICTION_DEFAULT_AGE_MASK;
+  mask.bits = TALER_EXTENSION_AGE_RESTRICTION_DEFAULT_AGE_MASK;
   ret = GNUNET_OK;
 
   if (groups != NULL)
   {
     ret = TALER_parse_age_group_string (groups, &mask);
     if (GNUNET_OK != ret)
-      mask.mask = TALER_EXTENSION_AGE_RESTRICTION_DEFAULT_AGE_MASK;
+      mask.bits = TALER_EXTENSION_AGE_RESTRICTION_DEFAULT_AGE_MASK;
   }
 
   if (GNUNET_OK == ret)
   {
     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "setting age mask to %x with #groups: %d\n", mask.mask,
-                __builtin_popcount (mask.mask) - 1);
-    _config.mask.mask = mask.mask;
-    _config.num_groups = __builtin_popcount (mask.mask) - 1; /* no underflow, first bit always set */
+                "setting age mask to %x with #groups: %d\n", mask.bits,
+                __builtin_popcount (mask.bits) - 1);
+    _config.mask.bits = mask.bits;
+    _config.num_groups = __builtin_popcount (mask.bits) - 1; /* no underflow, first bit always set */
     this->config = &_config;
 
     /* Note: we do now have _config set, however this->config_json is NOT set,
@@ -266,16 +266,16 @@ age_restriction_load_json_config (
   if (TALER_Extension_AgeRestriction != this->type)
     return GNUNET_SYSERR;
 
-  _config.mask.mask = mask.mask;
+  _config.mask.bits = mask.bits;
   _config.num_groups = 0;
 
-  if (mask.mask > 0)
+  if (mask.bits > 0)
   {
     /* if the mask is not zero, the first bit MUST be set */
-    if (0 == (mask.mask & 1))
+    if (0 == (mask.bits & 1))
       return GNUNET_SYSERR;
 
-    _config.num_groups = __builtin_popcount (mask.mask) - 1;
+    _config.num_groups = __builtin_popcount (mask.bits) - 1;
   }
 
   this->config = &_config;
@@ -358,7 +358,7 @@ struct TALER_Extension _extension_age_restriction = {
 bool
 TALER_extensions_age_restriction_is_configured ()
 {
-  return (0 != _config.mask.mask);
+  return (0 != _config.mask.bits);
 }
 
 

src/extensions/extensions.c

@@ -139,7 +139,7 @@ TALER_extensions_get_by_name (
 
 enum GNUNET_GenericReturnValue
 config_hash_verify (
-  const struct TALER_ExtensionConfigHash *h_config,
+  const struct TALER_ExtensionConfigHashP *h_config,
   const struct TALER_MasterPublicKeyP *master_pub,
   const struct TALER_MasterSignatureP *master_sig
   )
@@ -164,7 +164,7 @@ TALER_extensions_verify_json_config_signature (
   struct TALER_MasterSignatureP *extensions_sig,
   struct TALER_MasterPublicKeyP *master_pub)
 {
-  struct TALER_ExtensionConfigHash h_config;
+  struct TALER_ExtensionConfigHashP h_config;
 
   if (GNUNET_OK !=
       TALER_JSON_extensions_config_hash (extensions, &h_config))

src/include/taler_auditor_service.h

@@ -256,9 +256,9 @@ typedef void
 struct TALER_AUDITOR_DepositConfirmationHandle *
 TALER_AUDITOR_deposit_confirmation (
   struct TALER_AUDITOR_Handle *auditor,
-  const struct TALER_MerchantWireHash *h_wire,
-  const struct TALER_ExtensionContractHash *h_extensions,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_MerchantWireHashP *h_wire,
+  const struct TALER_ExtensionContractHashP *h_extensions,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   struct GNUNET_TIME_Timestamp exchange_timestamp,
   struct GNUNET_TIME_Timestamp wire_deadline,
   struct GNUNET_TIME_Timestamp refund_deadline,

src/include/taler_auditordb_plugin.h

@@ -62,7 +62,7 @@ typedef void
 typedef enum GNUNET_GenericReturnValue
 (*TALER_AUDITORDB_HistoricDenominationRevenueDataCallback)(
   void *cls,
-  const struct TALER_DenominationHash *denom_pub_hash,
+  const struct TALER_DenominationHashP *denom_pub_hash,
   struct GNUNET_TIME_Timestamp revenue_timestamp,
   const struct TALER_Amount *revenue_balance,
   const struct TALER_Amount *loss_balance);
@@ -274,17 +274,17 @@ struct TALER_AUDITORDB_DepositConfirmation
   /**
    * Hash over the contract for which this deposit is made.
    */
-  struct TALER_PrivateContractHash h_contract_terms;
+  struct TALER_PrivateContractHashP h_contract_terms;
 
   /**
    * Hash over the extensions for the deposit.
    */
-  struct TALER_ExtensionContractHash h_extensions;
+  struct TALER_ExtensionContractHashP h_extensions;
 
   /**
    * Hash over the wiring information of the merchant.
    */
-  struct TALER_MerchantWireHash h_wire;
+  struct TALER_MerchantWireHashP h_wire;
 
   /**
    * Time when this deposit confirmation was generated by the exchange.
@@ -1048,9 +1048,9 @@ struct TALER_AUDITORDB_Plugin
    * @return transaction status code
    */
   enum GNUNET_DB_QueryStatus
-  (*insert_denomination_balance)(void *cls,
-                                 const struct
-                                 TALER_DenominationHash *denom_pub_hash,
+  (*insert_denomination_balance)(
+    void *cls,
+    const struct TALER_DenominationHashP *denom_pub_hash,
     const struct TALER_Amount *denom_balance,
     const struct TALER_Amount *denom_loss,
     const struct TALER_Amount *denom_risk,
@@ -1072,9 +1072,9 @@ struct TALER_AUDITORDB_Plugin
    * @return transaction status code
    */
   enum GNUNET_DB_QueryStatus
-  (*update_denomination_balance)(void *cls,
-                                 const struct
-                                 TALER_DenominationHash *denom_pub_hash,
+  (*update_denomination_balance)(
+    void *cls,
+    const struct TALER_DenominationHashP *denom_pub_hash,
     const struct TALER_Amount *denom_balance,
     const struct TALER_Amount *denom_loss,
     const struct TALER_Amount *denom_risk,
@@ -1095,9 +1095,9 @@ struct TALER_AUDITORDB_Plugin
    * @return transaction status code
    */
   enum GNUNET_DB_QueryStatus
-  (*get_denomination_balance)(void *cls,
-                              const struct
-                              TALER_DenominationHash *denom_pub_hash,
+  (*get_denomination_balance)(
+    void *cls,
+    const struct TALER_DenominationHashP *denom_pub_hash,
     struct TALER_Amount *denom_balance,
     struct TALER_Amount *denom_loss,
     struct TALER_Amount *denom_risk,
@@ -1113,9 +1113,9 @@ struct TALER_AUDITORDB_Plugin
    * @return transaction status code
    */
   enum GNUNET_DB_QueryStatus
-  (*del_denomination_balance)(void *cls,
-                              const struct
-                              TALER_DenominationHash *denom_pub_hash);
+  (*del_denomination_balance)(
+    void *cls,
+    const struct TALER_DenominationHashP *denom_pub_hash);
 
 
   /**
@@ -1219,7 +1219,7 @@ struct TALER_AUDITORDB_Plugin
   (*insert_historic_denom_revenue)(
     void *cls,
     const struct TALER_MasterPublicKeyP *master_pub,
-    const struct TALER_DenominationHash *denom_pub_hash,
+    const struct TALER_DenominationHashP *denom_pub_hash,
     struct GNUNET_TIME_Timestamp revenue_timestamp,
     const struct TALER_Amount *revenue_balance,
     const struct TALER_Amount *recoup_loss_balance);

src/include/taler_crypto_lib.h

@@ -489,7 +489,7 @@ struct TALER_RefreshMasterSecretP
  * Hash used to represent a denomination public key
  * and associated age restrictions (if any).
  */
-struct TALER_DenominationHash
+struct TALER_DenominationHashP
 {
   /**
    * Actual hash value.
@@ -502,7 +502,7 @@ struct TALER_DenominationHash
  * Hash used to represent the private part
  * of a contract between merchant and consumer.
  */
-struct TALER_PrivateContractHash
+struct TALER_PrivateContractHashP
 {
   /**
    * Actual hash value.
@@ -515,7 +515,7 @@ struct TALER_PrivateContractHash
  * Hash used to represent the "public" extensions to
  * a contract that is shared with the exchange.
  */
-struct TALER_ExtensionContractHash
+struct TALER_ExtensionContractHashP
 {
   /**
    * Actual hash value.
@@ -528,7 +528,7 @@ struct TALER_ExtensionContractHash
  * Hash used to represent the salted hash of a
  * merchant's bank account.
  */
-struct TALER_MerchantWireHash
+struct TALER_MerchantWireHashP
 {
   /**
    * Actual hash value.
@@ -541,7 +541,7 @@ struct TALER_MerchantWireHash
  * Hash used to represent the unsalted hash of a
  * payto:// URI representing a bank account.
  */
-struct TALER_PaytoHash
+struct TALER_PaytoHashP
 {
   /**
    * Actual hash value.
@@ -554,7 +554,7 @@ struct TALER_PaytoHash
  * Hash used to represent a commitment to a blinded
  * coin, i.e. the hash of the envelope.
  */
-struct TALER_BlindedCoinHash
+struct TALER_BlindedCoinHashP
 {
   /**
    * Actual hash value.
@@ -567,7 +567,7 @@ struct TALER_BlindedCoinHash
  * Hash used to represent the hash of the public
  * key of a coin (without blinding).
  */
-struct TALER_CoinPubHash
+struct TALER_CoinPubHashP
 {
   /**
    * Actual hash value.
@@ -604,7 +604,7 @@ struct TALER_PickupIdentifierP
  * @brief Salted hash over the JSON object representing the configuration of an
  * extension.
  */
-struct TALER_ExtensionConfigHash
+struct TALER_ExtensionConfigHashP
 {
   /**
    * Actual hash value.
@@ -850,7 +850,7 @@ struct TALER_BlindedDenominationSignature
  */
 struct TALER_AgeMask
 {
-  uint32_t mask;
+  uint32_t bits;
 };
 
 /**
@@ -864,6 +864,14 @@ struct TALER_AgeCommitmentHash
   struct GNUNET_ShortHashCode shash;
 };
 
+/**
+ * @brief Signature of an age with the private key for the corresponding age group of an age commitment.
+ */
+struct TALER_AgeAttestation
+{
+  struct GNUNET_CRYPTO_EddsaSignature eddsa_signature;
+};
+
 extern const struct TALER_AgeCommitmentHash TALER_ZeroAgeCommitmentHash;
 #define TALER_AgeCommitmentHash_isNullOrZero(ph) ((NULL == ph) || \
                                                   (0 == memcmp (ph, \
@@ -1047,7 +1055,7 @@ struct TALER_CoinPublicInfo
    * Hash of the public key representing the denomination of the coin that is
    * being deposited.
    */
-  struct TALER_DenominationHash denom_pub_hash;
+  struct TALER_DenominationHashP denom_pub_hash;
 
   /**
    * Hash of the age commitment.  If no age commitment was provided, it must be
@@ -1055,6 +1063,11 @@ struct TALER_CoinPublicInfo
    */
   struct TALER_AgeCommitmentHash h_age_commitment;
 
+  /**
+   * True, if age commitment is not applicable.
+   */
+  bool no_age_commitment;
+
   /**
    * (Unblinded) signature over @e coin_pub with @e denom_pub,
    * which demonstrates that the coin is valid.
@@ -1072,7 +1085,7 @@ struct TALER_TrackTransferDetails
   /**
    * Hash of the proposal data.
    */
-  struct TALER_PrivateContractHash h_contract_terms;
+  struct TALER_PrivateContractHashP h_contract_terms;
 
   /**
    * Which coin was deposited?
@@ -1227,7 +1240,7 @@ TALER_denom_blind (const struct TALER_DenominationPublicKey *dk,
                    const struct TALER_AgeCommitmentHash *age_commitment_hash,
                    const struct TALER_CoinSpendPublicKeyP *coin_pub,
                    const struct TALER_ExchangeWithdrawValues *alg_values,
-                   struct TALER_CoinPubHash *c_hash,
+                   struct TALER_CoinPubHashP *c_hash,
                    struct TALER_BlindedPlanchet *blinded_planchet);
 
 
@@ -1236,12 +1249,14 @@ TALER_denom_blind (const struct TALER_DenominationPublicKey *dk,
  *
  * @param[out] denom_sig where to write the signature
  * @param denom_priv private key to use for signing
+ * @param for_melt true to use the HKDF for melt
  * @param blinded_planchet the planchet already blinded
  * @return #GNUNET_OK on success
  */
 enum GNUNET_GenericReturnValue
 TALER_denom_sign_blinded (struct TALER_BlindedDenominationSignature *denom_sig,
                           const struct TALER_DenominationPrivateKey *denom_priv,
+                          bool for_melt,
                           const struct TALER_BlindedPlanchet *blinded_planchet);
 
 
@@ -1261,7 +1276,7 @@ TALER_denom_sig_unblind (
   struct TALER_DenominationSignature *denom_sig,
   const struct TALER_BlindedDenominationSignature *bdenom_sig,
   const union TALER_DenominationBlindingKeyP *bks,
-  const struct TALER_CoinPubHash *c_hash,
+  const struct TALER_CoinPubHashP *c_hash,
   const struct TALER_ExchangeWithdrawValues *alg_values,
   const struct TALER_DenominationPublicKey *denom_pub);
 
@@ -1284,7 +1299,7 @@ TALER_blinded_denom_sig_free (
  */
 void
 TALER_denom_pub_hash (const struct TALER_DenominationPublicKey *denom_pub,
-                      struct TALER_DenominationHash *denom_hash);
+                      struct TALER_DenominationHashP *denom_hash);
 
 
 /**
@@ -1399,7 +1414,7 @@ TALER_denom_priv_to_pub (const struct TALER_DenominationPrivateKey *denom_priv,
 enum GNUNET_GenericReturnValue
 TALER_denom_pub_verify (const struct TALER_DenominationPublicKey *denom_pub,
                         const struct TALER_DenominationSignature *denom_sig,
-                        const struct TALER_CoinPubHash *c_hash);
+                        const struct TALER_CoinPubHashP *c_hash);
 
 
 /**
@@ -1427,8 +1442,8 @@ TALER_test_coin_valid (const struct TALER_CoinPublicInfo *coin_public_info,
  */
 enum GNUNET_GenericReturnValue
 TALER_coin_ev_hash (const struct TALER_BlindedPlanchet *blinded_planchet,
-                    const struct TALER_DenominationHash *denom_hash,
-                    struct TALER_BlindedCoinHash *bch);
+                    const struct TALER_DenominationHashP *denom_hash,
+                    struct TALER_BlindedCoinHashP *bch);
 
 
 /**
@@ -1441,7 +1456,7 @@ TALER_coin_ev_hash (const struct TALER_BlindedPlanchet *blinded_planchet,
 void
 TALER_coin_pub_hash (const struct TALER_CoinSpendPublicKeyP *coin_pub,
                      const struct TALER_AgeCommitmentHash *age_commitment_hash,
-                     struct TALER_CoinPubHash *coin_h);
+                     struct TALER_CoinPubHashP *coin_h);
 
 
 /**
@@ -1452,7 +1467,7 @@ TALER_coin_pub_hash (const struct TALER_CoinSpendPublicKeyP *coin_pub,
  */
 void
 TALER_payto_hash (const char *payto,
-                  struct TALER_PaytoHash *h_payto);
+                  struct TALER_PaytoHashP *h_payto);
 
 /**
  * Details about a planchet that the customer wants to obtain
@@ -1465,7 +1480,7 @@ struct TALER_PlanchetDetail
   /**
    * Hash of the denomination public key.
    */
-  struct TALER_DenominationHash denom_pub_hash;
+  struct TALER_DenominationHashP denom_pub_hash;
 
   /**
    * The blinded planchet
@@ -1679,7 +1694,7 @@ TALER_planchet_prepare (const struct TALER_DenominationPublicKey *dk,
                         const union TALER_DenominationBlindingKeyP *bks,
                         const struct TALER_CoinSpendPrivateKeyP *coin_priv,
                         const struct TALER_AgeCommitmentHash *ach,
-                        struct TALER_CoinPubHash *c_hash,
+                        struct TALER_CoinPubHashP *c_hash,
                         struct TALER_PlanchetDetail *pd);
 
 
@@ -1723,7 +1738,7 @@ TALER_planchet_to_coin (
   const union TALER_DenominationBlindingKeyP *bks,
   const struct TALER_CoinSpendPrivateKeyP *coin_priv,
   const struct TALER_AgeCommitmentHash *ach,
-  const struct TALER_CoinPubHash *c_hash,
+  const struct TALER_CoinPubHashP *c_hash,
   const struct TALER_ExchangeWithdrawValues *alg_values,
   struct TALER_FreshCoin *coin);
 
@@ -2048,7 +2063,31 @@ TALER_CRYPTO_helper_cs_poll (struct TALER_CRYPTO_CsDenominationHelper *dh);
  * @return #TALER_EC_NONE on success
  */
 enum TALER_ErrorCode
-TALER_CRYPTO_helper_cs_sign (
+TALER_CRYPTO_helper_cs_sign_melt (
+  struct TALER_CRYPTO_CsDenominationHelper *dh,
+  const struct TALER_CsPubHashP *h_cs,
+  const struct TALER_BlindedCsPlanchet *blinded_planchet,
+  struct TALER_BlindedDenominationSignature *bs);
+
+
+/**
+ * Request helper @a dh to sign @a msg using the public key corresponding to
+ * @a h_denom_pub.
+ *
+ * This operation will block until the signature has been obtained.  Should
+ * this process receive a signal (that is not ignored) while the operation is
+ * pending, the operation will fail.  Note that the helper may still believe
+ * that it created the signature. Thus, signals may result in a small
+ * differences in the signature counters.  Retrying in this case may work.
+ *
+ * @param dh helper process connection
+ * @param h_cs hash of the CS public key to use to sign
+ * @param blinded_planchet blinded planchet containing c and nonce
+ * @param[out] bs set to the blind signature
+ * @return #TALER_EC_NONE on success
+ */
+enum TALER_ErrorCode
+TALER_CRYPTO_helper_cs_sign_withdraw (
   struct TALER_CRYPTO_CsDenominationHelper *dh,
   const struct TALER_CsPubHashP *h_cs,
   const struct TALER_BlindedCsPlanchet *blinded_planchet,
@@ -2093,7 +2132,32 @@ TALER_CRYPTO_helper_cs_revoke (
  * @return set to the error code (or #TALER_EC_NONE on success)
  */
 enum TALER_ErrorCode
-TALER_CRYPTO_helper_cs_r_derive (struct TALER_CRYPTO_CsDenominationHelper *dh,
+TALER_CRYPTO_helper_cs_r_derive_withdraw (
+  struct TALER_CRYPTO_CsDenominationHelper *dh,
+  const struct TALER_CsPubHashP *h_cs,
+  const struct TALER_CsNonce *nonce,
+  struct TALER_DenominationCSPublicRPairP *crp);
+
+
+/**
+ * Ask the helper to derive R using the @a nonce and denomination key
+ * associated with @a h_cs.
+ *
+ * This operation will block until the R has been obtained.  Should
+ * this process receive a signal (that is not ignored) while the operation is
+ * pending, the operation will fail.  Note that the helper may still believe
+ * that it created the signature. Thus, signals may result in a small
+ * differences in the signature counters.  Retrying in this case may work.
+ *
+ * @param dh helper to process connection
+ * @param h_cs hash of the CS public key to revoke
+ * @param nonce witdhraw nonce
+ * @param[out] crp set to the pair of R values
+ * @return set to the error code (or #TALER_EC_NONE on success)
+ */
+enum TALER_ErrorCode
+TALER_CRYPTO_helper_cs_r_derive_melt (
+  struct TALER_CRYPTO_CsDenominationHelper *dh,
   const struct TALER_CsPubHashP *h_cs,
   const struct TALER_CsNonce *nonce,
   struct TALER_DenominationCSPublicRPairP *crp);
@@ -2269,9 +2333,9 @@ TALER_CRYPTO_helper_esign_disconnect (
  */
 enum GNUNET_GenericReturnValue
 TALER_exchange_deposit_confirm_verify (
-  const struct TALER_PrivateContractHash *h_contract_terms,
-  const struct TALER_MerchantWireHash *h_wire,
-  const struct TALER_ExtensionContractHash *h_extensions,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
+  const struct TALER_MerchantWireHashP *h_wire,
+  const struct TALER_ExtensionContractHashP *h_extensions,
   struct GNUNET_TIME_Timestamp exchange_timestamp,
   struct GNUNET_TIME_Timestamp wire_deadline,
   struct GNUNET_TIME_Timestamp refund_deadline,
@@ -2316,11 +2380,11 @@ void
 TALER_wallet_deposit_sign (
   const struct TALER_Amount *amount,
   const struct TALER_Amount *deposit_fee,
-  const struct TALER_MerchantWireHash *h_wire,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_MerchantWireHashP *h_wire,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   const struct TALER_AgeCommitmentHash *h_age_commitment,
-  const struct TALER_ExtensionContractHash *h_extensions,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_ExtensionContractHashP *h_extensions,
+  const struct TALER_DenominationHashP *h_denom_pub,
   struct GNUNET_TIME_Timestamp wallet_timestamp,
   const struct TALER_MerchantPublicKeyP *merchant_pub,
   struct GNUNET_TIME_Timestamp refund_deadline,
@@ -2349,11 +2413,11 @@ enum GNUNET_GenericReturnValue
 TALER_wallet_deposit_verify (
   const struct TALER_Amount *amount,
   const struct TALER_Amount *deposit_fee,
-  const struct TALER_MerchantWireHash *h_wire,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_MerchantWireHashP *h_wire,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   const struct TALER_AgeCommitmentHash *h_commitment_hash,
-  const struct TALER_ExtensionContractHash *h_extensions,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_ExtensionContractHashP *h_extensions,
+  const struct TALER_DenominationHashP *h_denom_pub,
   struct GNUNET_TIME_Timestamp wallet_timestamp,
   const struct TALER_MerchantPublicKeyP *merchant_pub,
   struct GNUNET_TIME_Timestamp refund_deadline,
@@ -2368,6 +2432,7 @@ TALER_wallet_deposit_verify (
  * @param melt_fee the melt fee we expect to pay
  * @param rc refresh session we are committed to
  * @param h_denom_pub hash of the coin denomination's public key
+ * @param h_age_commitment hash of the age commitment (may be NULL)
  * @param coin_priv coin’s private key
  * @param[out] coin_sig set to the signature made with purpose #TALER_SIGNATURE_WALLET_COIN_MELT
  */
@@ -2376,7 +2441,8 @@ TALER_wallet_melt_sign (
   const struct TALER_Amount *amount_with_fee,
   const struct TALER_Amount *melt_fee,
   const struct TALER_RefreshCommitmentP *rc,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
+  const struct TALER_AgeCommitmentHash *h_age_commitment,
   const struct TALER_CoinSpendPrivateKeyP *coin_priv,
   struct TALER_CoinSpendSignatureP *coin_sig);
 
@@ -2398,7 +2464,7 @@ TALER_wallet_melt_verify (
   const struct TALER_Amount *amount_with_fee,
   const struct TALER_Amount *melt_fee,
   const struct TALER_RefreshCommitmentP *rc,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_AgeCommitmentHash *h_age_commitment,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   const struct TALER_CoinSpendSignatureP *coin_sig);
@@ -2415,9 +2481,9 @@ TALER_wallet_melt_verify (
  */
 void
 TALER_wallet_link_sign (
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_TransferPublicKeyP *transfer_pub,
-  const struct TALER_BlindedCoinHash *bch,
+  const struct TALER_BlindedCoinHashP *bch,
   const struct TALER_CoinSpendPrivateKeyP *old_coin_priv,
   struct TALER_CoinSpendSignatureP *coin_sig);
 
@@ -2434,9 +2500,9 @@ TALER_wallet_link_sign (
  */
 enum GNUNET_GenericReturnValue
 TALER_wallet_link_verify (
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_TransferPublicKeyP *transfer_pub,
-  const struct TALER_BlindedCoinHash *h_coin_ev,
+  const struct TALER_BlindedCoinHashP *h_coin_ev,
   const struct TALER_CoinSpendPublicKeyP *old_coin_pub,
   const struct TALER_CoinSpendSignatureP *coin_sig);
 
@@ -2452,9 +2518,9 @@ TALER_wallet_link_verify (
  */
 void
 TALER_wallet_withdraw_sign (
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_Amount *amount_with_fee,
-  const struct TALER_BlindedCoinHash *bch,
+  const struct TALER_BlindedCoinHashP *bch,
   const struct TALER_ReservePrivateKeyP *reserve_priv,
   struct TALER_ReserveSignatureP *reserve_sig);
 
@@ -2471,9 +2537,9 @@ TALER_wallet_withdraw_sign (
  */
 enum GNUNET_GenericReturnValue
 TALER_wallet_withdraw_verify (
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_Amount *amount_with_fee,
-  const struct TALER_BlindedCoinHash *bch,
+  const struct TALER_BlindedCoinHashP *bch,
   const struct TALER_ReservePublicKeyP *reserve_pub,
   const struct TALER_ReserveSignatureP *reserve_sig);
 
@@ -2506,7 +2572,7 @@ TALER_exchange_melt_confirmation_verify (
  */
 enum GNUNET_GenericReturnValue
 TALER_wallet_recoup_verify (
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const union TALER_DenominationBlindingKeyP *coin_bks,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   const struct TALER_CoinSpendSignatureP *coin_sig);
@@ -2522,7 +2588,7 @@ TALER_wallet_recoup_verify (
  */
 void
 TALER_wallet_recoup_sign (
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const union TALER_DenominationBlindingKeyP *coin_bks,
   const struct TALER_CoinSpendPrivateKeyP *coin_priv,
   struct TALER_CoinSpendSignatureP *coin_sig);
@@ -2539,7 +2605,7 @@ TALER_wallet_recoup_sign (
  */
 enum GNUNET_GenericReturnValue
 TALER_wallet_recoup_refresh_verify (
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const union TALER_DenominationBlindingKeyP *coin_bks,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   const struct TALER_CoinSpendSignatureP *coin_sig);
@@ -2555,7 +2621,7 @@ TALER_wallet_recoup_refresh_verify (
  */
 void
 TALER_wallet_recoup_refresh_sign (
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const union TALER_DenominationBlindingKeyP *coin_bks,
   const struct TALER_CoinSpendPrivateKeyP *coin_priv,
   struct TALER_CoinSpendSignatureP *coin_sig);
@@ -2577,7 +2643,7 @@ TALER_wallet_recoup_refresh_sign (
 void
 TALER_merchant_refund_sign (
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   uint64_t rtransaction_id,
   const struct TALER_Amount *amount,
   const struct TALER_MerchantPrivateKeyP *merchant_priv,
@@ -2598,7 +2664,7 @@ TALER_merchant_refund_sign (
 enum GNUNET_GenericReturnValue
 TALER_merchant_refund_verify (
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   uint64_t rtransaction_id,
   const struct TALER_Amount *amount,
   const struct TALER_MerchantPublicKeyP *merchant_pub,
@@ -2687,7 +2753,7 @@ TALER_exchange_offline_auditor_del_verify (
  */
 void
 TALER_exchange_offline_denomination_revoke_sign (
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_MasterPrivateKeyP *master_priv,
   struct TALER_MasterSignatureP *master_sig);
 
@@ -2702,7 +2768,7 @@ TALER_exchange_offline_denomination_revoke_sign (
  */
 enum GNUNET_GenericReturnValue
 TALER_exchange_offline_denomination_revoke_verify (
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_MasterPublicKeyP *master_pub,
   const struct TALER_MasterSignatureP *master_sig);
 
@@ -2792,7 +2858,7 @@ TALER_exchange_offline_signkey_validity_verify (
  */
 void
 TALER_exchange_offline_denom_validity_sign (
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   struct GNUNET_TIME_Timestamp stamp_start,
   struct GNUNET_TIME_Timestamp stamp_expire_withdraw,
   struct GNUNET_TIME_Timestamp stamp_expire_deposit,
@@ -2819,7 +2885,7 @@ TALER_exchange_offline_denom_validity_sign (
  */
 enum GNUNET_GenericReturnValue
 TALER_exchange_offline_denom_validity_verify (
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   struct GNUNET_TIME_Timestamp stamp_start,
   struct GNUNET_TIME_Timestamp stamp_expire_withdraw,
   struct GNUNET_TIME_Timestamp stamp_expire_deposit,
@@ -2967,7 +3033,7 @@ TALER_exchange_secmod_cs_verify (
 void
 TALER_auditor_denom_validity_sign (
   const char *auditor_url,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_MasterPublicKeyP *master_pub,
   struct GNUNET_TIME_Timestamp stamp_start,
   struct GNUNET_TIME_Timestamp stamp_expire_withdraw,
@@ -2998,7 +3064,7 @@ TALER_auditor_denom_validity_sign (
 enum GNUNET_GenericReturnValue
 TALER_auditor_denom_validity_verify (
   const char *auditor_url,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_MasterPublicKeyP *master_pub,
   struct GNUNET_TIME_Timestamp stamp_start,
   struct GNUNET_TIME_Timestamp stamp_expire_withdraw,
@@ -3165,7 +3231,7 @@ TALER_exchange_wire_signature_make (
 void
 TALER_merchant_wire_signature_hash (const char *payto_uri,
                                     const struct TALER_WireSaltP *salt,
-                                    struct TALER_MerchantWireHash *hc);
+                                    struct TALER_MerchantWireHashP *hc);
 
 
 /**
@@ -3212,7 +3278,7 @@ TALER_merchant_wire_signature_make (
  */
 void
 TALER_exchange_offline_extension_config_hash_sign (
-  const struct TALER_ExtensionConfigHash *h_config,
+  const struct TALER_ExtensionConfigHashP *h_config,
   const struct TALER_MasterPrivateKeyP *master_priv,
   struct TALER_MasterSignatureP *master_sig);
 
@@ -3228,7 +3294,7 @@ TALER_exchange_offline_extension_config_hash_sign (
  */
 enum GNUNET_GenericReturnValue
 TALER_exchange_offline_extension_config_hash_verify (
-  const struct TALER_ExtensionConfigHash *h_config,
+  const struct TALER_ExtensionConfigHashP *h_config,
   const struct TALER_MasterPublicKeyP *master_pub,
   const struct TALER_MasterSignatureP *master_sig
   );
@@ -3249,7 +3315,7 @@ struct TALER_AgeCommitment
   /* The number of public keys, which must be the same as the number of
    * groups in the mask.
    */
-  size_t num_pub;
+  size_t num;
 
   /* The list of #num_pub public keys.  In must have same size as the number of
    * age groups defined in the mask.
@@ -3261,12 +3327,17 @@ struct TALER_AgeCommitment
    * The list has been allocated via GNUNET_malloc.
    */
   struct TALER_AgeCommitmentPublicKeyP *pub;
+};
 
+struct TALER_AgeProof
+{
   /* The number of private keys, which must be at most num_pub_keys.  One minus
    * this number corresponds to the largest age group that is supported with
    * this age commitment.
+   * **Note**, that this and the next field are only relevant on the wallet
+   * side for attestation and derive operations.
    */
-  size_t num_priv;
+  size_t num;
 
   /* List of #num_priv private keys.
    *
@@ -3279,6 +3350,12 @@ struct TALER_AgeCommitment
   struct TALER_AgeCommitmentPrivateKeyP *priv;
 };
 
+struct TALER_AgeCommitmentProof
+{
+  struct TALER_AgeCommitment commitment;
+  struct TALER_AgeProof proof;
+};
+
 /*
  * @brief Generates a hash of the public keys in the age commitment.
  *
@@ -3295,37 +3372,85 @@ TALER_age_commitment_hash (
  *
  * @param mask The age mask the defines the age groups
  * @param age The actual age for which an age commitment is generated
- * @param seed The seed that goes into the key generation.  MUST be choosen uniformly random.
- * @param commitment[out] The generated age commitment, ->priv and ->pub allocated via GNUNET_malloc on success
+ * @param salt The salt that goes into the key generation.  MUST be choosen uniformly random.
+ * @param comm_proof[out] The generated age commitment, ->priv and ->pub allocated via GNUNET_malloc on success
  * @return GNUNET_OK on success, GNUNET_SYSERR otherwise
  */
 enum GNUNET_GenericReturnValue
 TALER_age_restriction_commit (
   const struct TALER_AgeMask *mask,
   const uint8_t age,
-  const uint32_t seed,
-  struct TALER_AgeCommitment *commitment);
+  const uint64_t salt,
+  struct TALER_AgeCommitmentProof *comm_proof);
 
 /*
  * @brief Derives another, equivalent age commitment for a given one.
  *
  * @param orig Original age commitment
- * @param seed Used to move the points on the elliptic curve in order to generate another, equivalent commitment.
- * @param derived[out] The resulting age commitment, ->priv and ->pub allocated via GNUNET_malloc on success.
+ * @param salt Salt to randomly move the points on the elliptic curve in order to generate another, equivalent commitment.
+ * @param[out] derived The resulting age commitment, ->priv and ->pub allocated via GNUNET_malloc on success.
  * @return GNUNET_OK on success, GNUNET_SYSERR otherwise
  */
 enum GNUNET_GenericReturnValue
 TALER_age_commitment_derive (
-  const struct TALER_AgeCommitment *orig,
-  const uint32_t seed,
-  struct TALER_AgeCommitment *derived);
+  const struct TALER_AgeCommitmentProof *orig,
+  const uint64_t salt,
+  struct TALER_AgeCommitmentProof *derived);
+
+
+/*
+ * @brief Provide attestation for a given age, from a given age commitment, if possible.
+ *
+ * @param comm_proof The age commitment to be used for attestation.  For successful attestation, it must contain the private key for the corresponding age group.
+ * @param age Age (not age group) for which the an attestation should be done
+ * @param[out] attest Signature of the age with the appropriate key from the age commitment for the corresponding age group, if applicaple.
+ * @return GNUNET_OK on success, GNUNET_NO when no attestation can be made for that age with the given commitment, GNUNET_SYSERR otherwise
+ */
+enum GNUNET_GenericReturnValue
+TALER_age_commitment_attest (
+  const struct TALER_AgeCommitmentProof *comm_proof,
+  uint8_t age,
+  struct TALER_AgeAttestation *attest);
+
+/*
+ * @brief Verify the attestation for an given age and age commitment
+ *
+ * @param commitent The age commitment that went into the attestation.  Only the public keys are needed.
+ * @param age Age (not age group) for which the an attestation should be done
+ * @param attest Signature of the age with the appropriate key from the age commitment for the corresponding age group, if applicaple.
+ * @return GNUNET_OK when the attestation was successfull, GNUNET_NO no attestation couldn't be verified, GNUNET_SYSERR otherwise
+ */
+enum GNUNET_GenericReturnValue
+TALER_age_commitment_verify (
+  const struct TALER_AgeCommitment *commitment,
+  uint8_t age,
+  const struct TALER_AgeAttestation *attest);
 
 /*
  * @brief helper function to free memory of a struct TALER_AgeCommitment
- * @param cmt the commitment from which all memory should be freed.
+ *
+ * @param p the commitment from which all memory should be freed.
  */
 void
 TALER_age_commitment_free (
-  struct TALER_AgeCommitment *cmt);
+  struct TALER_AgeCommitment *p);
+
+/*
+ * @brief helper function to free memory of a struct TALER_AgeProof
+ *
+ * @param p the proof of commitment from which all memory should be freed.
+ */
+void
+TALER_age_proof_free (
+  struct TALER_AgeProof *p);
+
+/*
+ * @brief helper function to free memory of a struct TALER_AgeCommitmentProof
+ *
+ * @param p the commitment and its proof from which all memory should be freed.
+ */
+void
+TALER_age_commitment_proof_free (
+  struct TALER_AgeCommitmentProof *p);
 
 #endif

src/include/taler_exchange_service.h

@@ -97,7 +97,7 @@ struct TALER_EXCHANGE_DenomPublicKey
   /**
    * The hash of the public key.
    */
-  struct TALER_DenominationHash h_key;
+  struct TALER_DenominationHashP h_key;
 
   /**
    * Exchange's master signature over this denomination record.
@@ -609,7 +609,7 @@ TALER_EXCHANGE_destroy_denomination_key (
 const struct TALER_EXCHANGE_DenomPublicKey *
 TALER_EXCHANGE_get_denomination_key_by_hash (
   const struct TALER_EXCHANGE_Keys *keys,
-  const struct TALER_DenominationHash *hc);
+  const struct TALER_DenominationHashP *hc);
 
 
 /**
@@ -775,10 +775,10 @@ void
 TALER_EXCHANGE_deposit_permission_sign (
   const struct TALER_Amount *amount,
   const struct TALER_Amount *deposit_fee,
-  const struct TALER_MerchantWireHash *h_wire,
-  const struct TALER_PrivateContractHash *h_contract_terms,
-  const struct TALER_ExtensionContractHash *h_extensions,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_MerchantWireHashP *h_wire,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
+  const struct TALER_ExtensionContractHashP *h_extensions,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_CoinSpendPrivateKeyP *coin_priv,
   const struct TALER_AgeCommitment *age_commitment,
   struct GNUNET_TIME_Timestamp wallet_timestamp,
@@ -905,7 +905,7 @@ TALER_EXCHANGE_deposit (
   struct GNUNET_TIME_Timestamp wire_deadline,
   const char *merchant_payto_uri,
   const struct TALER_WireSaltP *wire_salt,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   const struct TALER_AgeCommitmentHash *h_age_commitment,
   const json_t *extension_details,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
@@ -996,7 +996,8 @@ typedef void
 struct TALER_EXCHANGE_RefundHandle *
 TALER_EXCHANGE_refund (struct TALER_EXCHANGE_Handle *exchange,
                        const struct TALER_Amount *amount,
-                       const struct TALER_PrivateContractHash *h_contract_terms,
+                       const struct
+                       TALER_PrivateContractHashP *h_contract_terms,
                        const struct TALER_CoinSpendPublicKeyP *coin_pub,
                        uint64_t rtransaction_id,
                        const struct TALER_MerchantPrivateKeyP *merchant_priv,
@@ -1681,9 +1682,11 @@ struct TALER_EXCHANGE_RefreshData
   struct TALER_CoinSpendPrivateKeyP melt_priv;
 
   /*
-   * age commitment that went into the original coin, might be NULL
+   * age commitment and proof and its hash that went into the original coin,
+   * might be NULL.
    */
-  struct TALER_AgeCommitment *age_commitment;
+  const struct TALER_AgeCommitmentProof *melt_age_commitment_proof;
+  const struct TALER_AgeCommitmentHash *melt_h_age_commitment;
 
   /**
    * amount specifying how much the coin will contribute to the melt
@@ -1855,7 +1858,7 @@ struct TALER_EXCHANGE_RevealedCoinInfo
   /**
    * Age commitment and its hash of the coin, might be NULL.
    */
-  struct TALER_AgeCommitment *age_commitment;
+  struct TALER_AgeCommitmentProof *age_commitment_proof;
   struct TALER_AgeCommitmentHash *h_age_commitment;
 
   /**
@@ -1996,6 +1999,12 @@ struct TALER_EXCHANGE_LinkedCoinInfo
    */
   struct TALER_CoinSpendPrivateKeyP coin_priv;
 
+  /**
+   * Age commitment and its hash, if applicable.  Might be NULL.
+   */
+  struct TALER_AgeCommitmentProof *age_commitment_proof;
+  struct TALER_AgeCommitmentHash *h_age_commitment;
+
   /**
    * Master secret of this coin.
    */
@@ -2083,7 +2092,8 @@ typedef void
 struct TALER_EXCHANGE_LinkHandle *
 TALER_EXCHANGE_link (struct TALER_EXCHANGE_Handle *exchange,
                      const struct TALER_CoinSpendPrivateKeyP *coin_priv,
-                     const struct TALER_AgeCommitment *age_commitment,
+                     const struct
+                     TALER_AgeCommitmentProof *age_commitment_proof,
                      TALER_EXCHANGE_LinkCallback link_cb,
                      void *link_cb_cls);
 
@@ -2125,7 +2135,7 @@ struct TALER_EXCHANGE_TransferData
   /**
    * hash of the payto:// URI the transfer went to
    */
-  struct TALER_PaytoHash h_payto;
+  struct TALER_PaytoHashP h_payto;
 
   /**
    * time when the exchange claims to have performed the wire transfer
@@ -2324,8 +2334,8 @@ struct TALER_EXCHANGE_DepositGetHandle *
 TALER_EXCHANGE_deposits_get (
   struct TALER_EXCHANGE_Handle *exchange,
   const struct TALER_MerchantPrivateKeyP *merchant_priv,
-  const struct TALER_MerchantWireHash *h_wire,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_MerchantWireHashP *h_wire,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   TALER_EXCHANGE_DepositGetCallback cb,
   void *cb_cls);
@@ -2360,7 +2370,7 @@ TALER_EXCHANGE_verify_coin_history (
   const char *currency,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   json_t *history,
-  struct TALER_DenominationHash *h_denom_pub,
+  struct TALER_DenominationHashP *h_denom_pub,
   struct TALER_Amount *total);
 
 
@@ -2622,7 +2632,7 @@ typedef void
 struct TALER_EXCHANGE_KycCheckHandle *
 TALER_EXCHANGE_kyc_check (struct TALER_EXCHANGE_Handle *eh,
                           uint64_t payment_target,
-                          const struct TALER_PaytoHash *h_payto,
+                          const struct TALER_PaytoHashP *h_payto,
                           struct GNUNET_TIME_Relative timeout,
                           TALER_EXCHANGE_KycStatusCallback cb,
                           void *cb_cls);
@@ -3010,7 +3020,7 @@ struct TALER_EXCHANGE_DenominationKeySignature
   /**
    * The hash of the denomination's public key
    */
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   /**
    * Signature over this denomination key by the exchange's master signature.
@@ -3187,7 +3197,7 @@ struct TALER_EXCHANGE_ManagementRevokeDenominationKeyHandle *
 TALER_EXCHANGE_management_revoke_denomination_key (
   struct GNUNET_CURL_Context *ctx,
   const char *url,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_MasterSignatureP *master_sig,
   TALER_EXCHANGE_ManagementRevokeDenominationKeyCallback cb,
   void *cb_cls);
@@ -3559,7 +3569,7 @@ struct TALER_EXCHANGE_AuditorAddDenominationHandle *
 TALER_EXCHANGE_add_auditor_denomination (
   struct GNUNET_CURL_Context *ctx,
   const char *url,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_AuditorPublicKeyP *auditor_pub,
   const struct TALER_AuditorSignatureP *auditor_sig,
   TALER_EXCHANGE_AuditorAddDenominationCallback cb,

src/include/taler_exchangedb_plugin.h

@@ -109,7 +109,7 @@ struct TALER_KycCompletedEventP
   /**
    * Public key of the reserve the event is about.
    */
-  struct TALER_PaytoHash h_payto;
+  struct TALER_PaytoHashP h_payto;
 };
 
 
@@ -200,7 +200,7 @@ struct TALER_EXCHANGEDB_TableData
     struct
     {
       uint32_t denom_type;
-      uint32_t age_restrictions;
+      uint32_t age_mask;
       struct TALER_DenominationPublicKey denom_pub;
       struct TALER_MasterSignatureP master_sig;
       struct GNUNET_TIME_Timestamp valid_from;
@@ -257,7 +257,7 @@ struct TALER_EXCHANGEDB_TableData
 
     struct
     {
-      struct TALER_BlindedCoinHash h_blind_ev;
+      struct TALER_BlindedCoinHashP h_blind_ev;
       uint64_t denominations_serial;
       struct TALER_BlindedDenominationSignature denom_sig;
       uint64_t reserve_uuid;
@@ -301,6 +301,7 @@ struct TALER_EXCHANGEDB_TableData
       struct TALER_AgeCommitmentHash age_hash;
       uint64_t denominations_serial;
       struct TALER_DenominationSignature denom_sig;
+      struct TALER_Amount remaining;
     } known_coins;
 
     struct
@@ -309,6 +310,7 @@ struct TALER_EXCHANGEDB_TableData
       struct TALER_CoinSpendPublicKeyP old_coin_pub;
       struct TALER_CoinSpendSignatureP old_coin_sig;
       struct TALER_Amount amount_with_fee;
+      struct TALER_AgeCommitmentHash h_age_commitment;
       uint32_t noreveal_index;
     } refresh_commitments;
 
@@ -342,7 +344,7 @@ struct TALER_EXCHANGEDB_TableData
       struct GNUNET_TIME_Timestamp refund_deadline;
       struct GNUNET_TIME_Timestamp wire_deadline;
       struct TALER_MerchantPublicKeyP merchant_pub;
-      struct TALER_PrivateContractHash h_contract_terms;
+      struct TALER_PrivateContractHashP h_contract_terms;
       struct TALER_CoinSpendSignatureP coin_sig;
       struct TALER_WireSaltP wire_salt;
       uint64_t wire_target_serial_id;
@@ -648,7 +650,7 @@ typedef void
 (*TALER_EXCHANGEDB_DenominationsCallback)(
   void *cls,
   const struct TALER_DenominationPublicKey *denom_pub,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta,
   const struct TALER_MasterSignatureP *master_sig,
   bool recoup_possible);
@@ -700,7 +702,7 @@ typedef void
 (*TALER_EXCHANGEDB_AuditorDenominationsCallback)(
   void *cls,
   const struct TALER_AuditorPublicKeyP *auditor_pub,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_AuditorSignatureP *auditor_sig);
 
 
@@ -720,7 +722,7 @@ struct TALER_EXCHANGEDB_CollectableBlindcoin
   /**
    * Hash of the denomination key (which coin was generated).
    */
-  struct TALER_DenominationHash denom_pub_hash;
+  struct TALER_DenominationHashP denom_pub_hash;
 
   /**
    * Value of the coin being exchangeed (matching the denomination key)
@@ -753,7 +755,7 @@ struct TALER_EXCHANGEDB_CollectableBlindcoin
    * Hash over the blinded message, needed to verify
    * the @e reserve_sig.
    */
-  struct TALER_BlindedCoinHash h_coin_envelope;
+  struct TALER_BlindedCoinHashP h_coin_envelope;
 
   /**
    * Signature confirming the withdrawal, matching @e reserve_pub,
@@ -844,7 +846,7 @@ struct TALER_EXCHANGEDB_RecoupListEntry
   /**
    * Hash of the public denomination key used to sign the coin.
    */
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   /**
    * Public key of the reserve the coin was paid back into.
@@ -1024,7 +1026,7 @@ struct TALER_EXCHANGEDB_Deposit
    * Hash over the proposal data between merchant and customer
    * (remains unknown to the Exchange).
    */
-  struct TALER_PrivateContractHash h_contract_terms;
+  struct TALER_PrivateContractHashP h_contract_terms;
 
   /**
    * Salt used by the merchant to compute "h_wire".
@@ -1112,12 +1114,12 @@ struct TALER_EXCHANGEDB_DepositListEntry
    * Hash over the proposa data between merchant and customer
    * (remains unknown to the Exchange).
    */
-  struct TALER_PrivateContractHash h_contract_terms;
+  struct TALER_PrivateContractHashP h_contract_terms;
 
   /**
    * Hash of the public denomination key used to sign the coin.
    */
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   /**
    * Age commitment hash, if applicable ot the denomination.  Should be all
@@ -1125,6 +1127,11 @@ struct TALER_EXCHANGEDB_DepositListEntry
    */
   struct TALER_AgeCommitmentHash h_age_commitment;
 
+  /**
+   * true, if age commitment is not applicable
+   */
+  bool no_age_commitment;
+
   /**
    * Detailed information about the receiver for executing the transaction.
    * URL in payto://-format.
@@ -1205,7 +1212,7 @@ struct TALER_EXCHANGEDB_RefundListEntry
    * Hash over the proposal data between merchant and customer
    * (remains unknown to the Exchange).
    */
-  struct TALER_PrivateContractHash h_contract_terms;
+  struct TALER_PrivateContractHashP h_contract_terms;
 
   /**
    * Merchant-generated REFUND transaction ID to detect duplicate
@@ -1268,13 +1275,6 @@ struct TALER_EXCHANGEDB_Refresh
    */
   struct TALER_CoinSpendSignatureP coin_sig;
 
-  /**
-   * Hash of the age commitment used to sign the coin, if age restriction was
-   * applicable to the denomination.  May be all zeroes if no age restriction
-   * applies.
-   */
-  struct TALER_AgeCommitmentHash h_age_commitment;
-
   /**
    * Refresh commitment this coin is melted into.
    */
@@ -1318,7 +1318,7 @@ struct TALER_EXCHANGEDB_MeltListEntry
   /**
    * Hash of the public denomination key used to sign the coin.
    */
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   /**
    * Hash of the age commitment used to sign the coin, if age restriction was
@@ -1327,6 +1327,11 @@ struct TALER_EXCHANGEDB_MeltListEntry
    */
   struct TALER_AgeCommitmentHash h_age_commitment;
 
+  /**
+   * true, if no h_age_commitment is applicable
+   */
+  bool no_age_commitment;
+
   /**
    * How much value is being melted?  This amount includes the fees,
    * so the final amount contributed to the melt is this value minus
@@ -1549,7 +1554,7 @@ typedef enum GNUNET_DB_QueryStatus
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   const struct TALER_Amount *amount_with_fee,
   const struct TALER_Amount *deposit_fee,
-  const struct TALER_PrivateContractHash *h_contract_terms);
+  const struct TALER_PrivateContractHashP *h_contract_terms);
 
 
 /**
@@ -1576,7 +1581,7 @@ typedef enum GNUNET_DB_QueryStatus
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   const struct TALER_Amount *amount_with_fee,
   const struct TALER_Amount *deposit_fee,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   uint64_t wire_target,
   const char *payto_uri);
 
@@ -1671,7 +1676,7 @@ struct TALER_EXCHANGEDB_RefreshRevealedCoin
   /**
    * Hash of the public denomination key of the coin.
    */
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   /**
    * Signature of the original coin being refreshed over the
@@ -1682,7 +1687,7 @@ struct TALER_EXCHANGEDB_RefreshRevealedCoin
   /**
    * Hash of the blinded new coin, that is @e coin_ev.
    */
-  struct TALER_BlindedCoinHash coin_envelope_hash;
+  struct TALER_BlindedCoinHashP coin_envelope_hash;
 
   /**
    * Signature generated by the exchange over the coin (in blinded format).
@@ -1712,7 +1717,7 @@ struct TALER_EXCHANGEDB_CsRevealFreshCoinData
   /**
    * Denomination of the fresh coin.
    */
-  struct TALER_DenominationHash new_denom_pub_hash;
+  struct TALER_DenominationHashP new_denom_pub_hash;
 
   /**
    * Blind signature of the fresh coin (possibly updated
@@ -1834,7 +1839,7 @@ typedef enum GNUNET_GenericReturnValue
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   const struct TALER_MerchantPublicKeyP *merchant_pub,
   const struct TALER_MerchantSignatureP *merchant_sig,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   uint64_t rtransaction_id,
   const struct TALER_Amount *amount_with_fee);
 
@@ -1915,7 +1920,7 @@ typedef enum GNUNET_GenericReturnValue
 (*TALER_EXCHANGEDB_WithdrawCallback)(
   void *cls,
   uint64_t rowid,
-  const struct TALER_BlindedCoinHash *h_blind_ev,
+  const struct TALER_BlindedCoinHashP *h_blind_ev,
   const struct TALER_DenominationPublicKey *denom_pub,
   const struct TALER_ReservePublicKeyP *reserve_pub,
   const struct TALER_ReserveSignatureP *reserve_sig,
@@ -1946,6 +1951,7 @@ typedef void
  * @param rowid which row in the table is the information from (for diagnostics)
  * @param merchant_pub public key of the merchant (should be same for all callbacks with the same @e cls)
  * @param account_payto_uri which account did the transfer go to?
+ * @param h_payto hash over @a account_payto_uri as it is in the DB
  * @param exec_time execution time of the wire transfer (should be same for all callbacks with the same @e cls)
  * @param h_contract_terms which proposal was this payment about
  * @param denom_pub denomination of @a coin_pub
@@ -1959,8 +1965,9 @@ typedef void
   uint64_t rowid,
   const struct TALER_MerchantPublicKeyP *merchant_pub,
   const char *account_payto_uri,
+  const struct TALER_PaytoHashP *h_payto,
   struct GNUNET_TIME_Timestamp exec_time,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   const struct TALER_DenominationPublicKey *denom_pub,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   const struct TALER_Amount *coin_value,
@@ -2059,7 +2066,7 @@ typedef enum GNUNET_GenericReturnValue
   struct GNUNET_TIME_Timestamp timestamp,
   const struct TALER_Amount *amount,
   const struct TALER_CoinSpendPublicKeyP *old_coin_pub,
-  const struct TALER_DenominationHash *old_denom_pub_hash,
+  const struct TALER_DenominationHashP *old_denom_pub_hash,
   const struct TALER_CoinPublicInfo *coin,
   const struct TALER_DenominationPublicKey *denom_pub,
   const struct TALER_CoinSpendSignatureP *coin_sig,
@@ -2142,7 +2149,7 @@ typedef void
   const struct TALER_CoinPublicInfo *coin,
   const struct TALER_CoinSpendSignatureP *coin_sig,
   const union TALER_DenominationBlindingKeyP *coin_blind,
-  const struct TALER_BlindedCoinHash *h_blinded_ev,
+  const struct TALER_BlindedCoinHashP *h_blinded_ev,
   const struct TALER_Amount *amount);
 
 
@@ -2357,7 +2364,7 @@ struct TALER_EXCHANGEDB_Plugin
   enum GNUNET_DB_QueryStatus
   (*get_denomination_info)(
     void *cls,
-    const struct TALER_DenominationHash *denom_pub_hash,
+    const struct TALER_DenominationHashP *denom_pub_hash,
     struct TALER_EXCHANGEDB_DenominationKeyInformationP *issue);
 
 
@@ -2483,7 +2490,7 @@ struct TALER_EXCHANGEDB_Plugin
   enum GNUNET_DB_QueryStatus
   (*select_kyc_status)(void *cls,
                        uint64_t payment_target_uuid,
-                       struct TALER_PaytoHash *h_payto,
+                       struct TALER_PaytoHashP *h_payto,
                        struct TALER_EXCHANGEDB_KycStatus *kyc);
 
 
@@ -2537,7 +2544,7 @@ struct TALER_EXCHANGEDB_Plugin
   enum GNUNET_DB_QueryStatus
   (*lock_nonce)(void *cls,
                 const struct TALER_CsNonce *nonce,
-                const struct TALER_DenominationHash *denom_pub_hash,
+                const struct TALER_DenominationHashP *denom_pub_hash,
                 const union TALER_EXCHANGEDB_NonceLockTargetP *target);
 
 
@@ -2554,7 +2561,7 @@ struct TALER_EXCHANGEDB_Plugin
    */
   enum GNUNET_DB_QueryStatus
   (*get_withdraw_info)(void *cls,
-                       const struct TALER_BlindedCoinHash *bch,
+                       const struct TALER_BlindedCoinHashP *bch,
                        struct TALER_EXCHANGEDB_CollectableBlindcoin *collectable);
 
 
@@ -2623,7 +2630,7 @@ struct TALER_EXCHANGEDB_Plugin
     void *cls,
     const struct TALER_EXCHANGEDB_Deposit *deposit,
     uint64_t known_coin_id,
-    const struct TALER_PaytoHash *h_payto,
+    const struct TALER_PaytoHashP *h_payto,
     bool extension_blocked,
     struct GNUNET_TIME_Timestamp *exchange_timestamp,
     bool *balance_ok,
@@ -2798,7 +2805,7 @@ struct TALER_EXCHANGEDB_Plugin
    */
   long long
   (*count_known_coins) (void *cls,
-                        const struct TALER_DenominationHash *denom_pub_hash);
+                        const struct TALER_DenominationHashP *denom_pub_hash);
 
 
   /**
@@ -2846,7 +2853,7 @@ struct TALER_EXCHANGEDB_Plugin
   (*ensure_coin_known)(void *cls,
                        const struct TALER_CoinPublicInfo *coin,
                        uint64_t *known_coin_id,
-                       struct TALER_DenominationHash *denom_pub_hash,
+                       struct TALER_DenominationHashP *denom_pub_hash,
                        struct TALER_AgeCommitmentHash *age_hash);
 
 
@@ -2876,7 +2883,7 @@ struct TALER_EXCHANGEDB_Plugin
   (*get_coin_denomination)(void *cls,
                            const struct TALER_CoinSpendPublicKeyP *coin_pub,
                            uint64_t *known_coin_id,
-                           struct TALER_DenominationHash *denom_hash);
+                           struct TALER_DenominationHashP *denom_hash);
 
 
   /**
@@ -2898,8 +2905,8 @@ struct TALER_EXCHANGEDB_Plugin
   enum GNUNET_DB_QueryStatus
   (*have_deposit2)(
     void *cls,
-    const struct TALER_PrivateContractHash *h_contract_terms,
-    const struct TALER_MerchantWireHash *h_wire,
+    const struct TALER_PrivateContractHashP *h_contract_terms,
+    const struct TALER_MerchantWireHashP *h_wire,
     const struct TALER_CoinSpendPublicKeyP *coin_pub,
     const struct TALER_MerchantPublicKeyP *merchant,
     struct GNUNET_TIME_Timestamp refund_deadline,
@@ -2950,7 +2957,7 @@ struct TALER_EXCHANGEDB_Plugin
   (*select_refunds_by_coin)(void *cls,
                             const struct TALER_CoinSpendPublicKeyP *coin_pub,
                             const struct TALER_MerchantPublicKeyP *merchant_pub,
-                            const struct TALER_PrivateContractHash *h_contract,
+                            const struct TALER_PrivateContractHashP *h_contract,
                             TALER_EXCHANGEDB_RefundCoinCallback cb,
                             void *cb_cls);
 
@@ -3189,8 +3196,8 @@ struct TALER_EXCHANGEDB_Plugin
   enum GNUNET_DB_QueryStatus
   (*lookup_transfer_by_deposit)(
     void *cls,
-    const struct TALER_PrivateContractHash *h_contract_terms,
-    const struct TALER_MerchantWireHash *h_wire,
+    const struct TALER_PrivateContractHashP *h_contract_terms,
+    const struct TALER_MerchantWireHashP *h_wire,
     const struct TALER_CoinSpendPublicKeyP *coin_pub,
     const struct TALER_MerchantPublicKeyP *merchant_pub,
     bool *pending,
@@ -3614,7 +3621,7 @@ struct TALER_EXCHANGEDB_Plugin
    */
   enum GNUNET_DB_QueryStatus
   (*get_reserve_by_h_blind)(void *cls,
-                            const struct TALER_BlindedCoinHash *bch,
+                            const struct TALER_BlindedCoinHashP *bch,
                             struct TALER_ReservePublicKeyP *reserve_pub,
                             uint64_t *reserve_out_serial_id);
 
@@ -3631,7 +3638,7 @@ struct TALER_EXCHANGEDB_Plugin
    */
   enum GNUNET_DB_QueryStatus
   (*get_old_coin_by_h_blind)(void *cls,
-                             const struct TALER_BlindedCoinHash *h_blind_ev,
+                             const struct TALER_BlindedCoinHashP *h_blind_ev,
                              struct TALER_CoinSpendPublicKeyP *old_coin_pub,
                              uint64_t *rrc_serial);
 
@@ -3648,7 +3655,7 @@ struct TALER_EXCHANGEDB_Plugin
   enum GNUNET_DB_QueryStatus
   (*insert_denomination_revocation)(
     void *cls,
-    const struct TALER_DenominationHash *denom_pub_hash,
+    const struct TALER_DenominationHashP *denom_pub_hash,
     const struct TALER_MasterSignatureP *master_sig);
 
 
@@ -3663,9 +3670,9 @@ struct TALER_EXCHANGEDB_Plugin
    * @return transaction status code
    */
   enum GNUNET_DB_QueryStatus
-  (*get_denomination_revocation)(void *cls,
-                                 const struct
-                                 TALER_DenominationHash *denom_pub_hash,
+  (*get_denomination_revocation)(
+    void *cls,
+    const struct TALER_DenominationHashP *denom_pub_hash,
     struct TALER_MasterSignatureP *master_sig,
     uint64_t *rowid);
 
@@ -3882,7 +3889,7 @@ struct TALER_EXCHANGEDB_Plugin
   enum GNUNET_DB_QueryStatus
   (*lookup_denomination_key)(
     void *cls,
-    const struct TALER_DenominationHash *h_denom_pub,
+    const struct TALER_DenominationHashP *h_denom_pub,
     struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta);
 
 
@@ -3899,7 +3906,7 @@ struct TALER_EXCHANGEDB_Plugin
   enum GNUNET_DB_QueryStatus
   (*add_denomination_key)(
     void *cls,
-    const struct TALER_DenominationHash *h_denom_pub,
+    const struct TALER_DenominationHashP *h_denom_pub,
     const struct TALER_DenominationPublicKey *denom_pub,
     const struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta,
     const struct TALER_MasterSignatureP *master_sig);
@@ -3950,7 +3957,7 @@ struct TALER_EXCHANGEDB_Plugin
   enum GNUNET_DB_QueryStatus
   (*insert_auditor_denom_sig)(
     void *cls,
-    const struct TALER_DenominationHash *h_denom_pub,
+    const struct TALER_DenominationHashP *h_denom_pub,
     const struct TALER_AuditorPublicKeyP *auditor_pub,
     const struct TALER_AuditorSignatureP *auditor_sig);
 
@@ -3967,7 +3974,7 @@ struct TALER_EXCHANGEDB_Plugin
   enum GNUNET_DB_QueryStatus
   (*select_auditor_denom_sig)(
     void *cls,
-    const struct TALER_DenominationHash *h_denom_pub,
+    const struct TALER_DenominationHashP *h_denom_pub,
     const struct TALER_AuditorPublicKeyP *auditor_pub,
     struct TALER_AuditorSignatureP *auditor_sig);
 

src/include/taler_json_lib.h

@@ -400,7 +400,7 @@ TALER_JSON_spec_i18n_str (const char *name,
  */
 enum GNUNET_GenericReturnValue
 TALER_JSON_contract_hash (const json_t *json,
-                          struct TALER_PrivateContractHash *hc);
+                          struct TALER_PrivateContractHashP *hc);
 
 
 /**
@@ -522,7 +522,7 @@ TALER_JSON_get_error_code2 (const void *data,
  */
 enum GNUNET_GenericReturnValue
 TALER_JSON_merchant_wire_signature_hash (const json_t *wire_s,
-                                         struct TALER_MerchantWireHash *hc);
+                                         struct TALER_MerchantWireHashP *hc);
 
 
 /**
@@ -623,7 +623,7 @@ TALER_JSON_wire_to_payto (const json_t *wire_s);
  */
 void
 TALER_deposit_extension_hash (const json_t *extensions,
-                              struct TALER_ExtensionContractHash *ech);
+                              struct TALER_ExtensionContractHashP *ech);
 
 /**
  * Hash the @a config of an extension, given as JSON
@@ -634,7 +634,7 @@ TALER_deposit_extension_hash (const json_t *extensions,
  */
 enum GNUNET_GenericReturnValue
 TALER_JSON_extensions_config_hash (const json_t *config,
-                                   struct TALER_ExtensionConfigHash *eh);
+                                   struct TALER_ExtensionConfigHashP *eh);
 
 /**
  * Canonicalize a JSON input to a string according to RFC 8785.

src/include/taler_signatures.h

@@ -271,6 +271,12 @@
  */
 #define TALER_SIGNATURE_WALLET_COIN_RECOUP_REFRESH 1206
 
+/**
+ * Signature using a age restriction key for attestation of a particular
+ * age/age-group.
+ */
+#define TALER_SIGNATURE_WALLET_AGE_ATTESTATION 1207
+
 
 /******************************/
 /* Security module signatures */
@@ -345,7 +351,7 @@ struct TALER_DenominationKeyAnnouncementPS
   /**
    * Hash of the denomination public key.
    */
-  struct TALER_DenominationHash h_denom;
+  struct TALER_DenominationHashP h_denom;
 
   /**
    * Hash of the section name in the configuration of this denomination.
@@ -412,7 +418,7 @@ struct TALER_LinkDataPS
   /**
    * Hash of the denomination public key of the new coin.
    */
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   /**
    * Transfer public key (for which the private key was not revealed)
@@ -427,7 +433,7 @@ struct TALER_LinkDataPS
   /**
    * Hash of the blinded new coin.
    */
-  struct TALER_BlindedCoinHash coin_envelope_hash;
+  struct TALER_BlindedCoinHashP coin_envelope_hash;
 };
 
 
@@ -456,12 +462,12 @@ struct TALER_WithdrawRequestPS
   /**
    * Hash of the denomination public key for the coin that is withdrawn.
    */
-  struct TALER_DenominationHash h_denomination_pub GNUNET_PACKED;
+  struct TALER_DenominationHashP h_denomination_pub GNUNET_PACKED;
 
   /**
    * Hash of the (blinded) message to be signed by the Exchange.
    */
-  struct TALER_BlindedCoinHash h_coin_envelope GNUNET_PACKED;
+  struct TALER_BlindedCoinHashP h_coin_envelope GNUNET_PACKED;
 };
 
 
@@ -480,7 +486,7 @@ struct TALER_DepositRequestPS
   /**
    * Hash over the contract for which this deposit is made.
    */
-  struct TALER_PrivateContractHash h_contract_terms GNUNET_PACKED;
+  struct TALER_PrivateContractHashP h_contract_terms GNUNET_PACKED;
 
   /**
    * Hash over the age commitment that went into the coin. Maybe all zero, if
@@ -491,17 +497,17 @@ struct TALER_DepositRequestPS
   /**
    * Hash over extension attributes shared with the exchange.
    */
-  struct TALER_ExtensionContractHash h_extensions GNUNET_PACKED;
+  struct TALER_ExtensionContractHashP h_extensions GNUNET_PACKED;
 
   /**
    * Hash over the wiring information of the merchant.
    */
-  struct TALER_MerchantWireHash h_wire GNUNET_PACKED;
+  struct TALER_MerchantWireHashP h_wire GNUNET_PACKED;
 
   /**
    * Hash over the denomination public key used to sign the coin.
    */
-  struct TALER_DenominationHash h_denom_pub GNUNET_PACKED;
+  struct TALER_DenominationHashP h_denom_pub GNUNET_PACKED;
 
   /**
    * Time when this request was generated.  Used, for example, to
@@ -567,18 +573,18 @@ struct TALER_DepositConfirmationPS
   /**
    * Hash over the contract for which this deposit is made.
    */
-  struct TALER_PrivateContractHash h_contract_terms GNUNET_PACKED;
+  struct TALER_PrivateContractHashP h_contract_terms GNUNET_PACKED;
 
   /**
    * Hash over the wiring information of the merchant.
    */
-  struct TALER_MerchantWireHash h_wire GNUNET_PACKED;
+  struct TALER_MerchantWireHashP h_wire GNUNET_PACKED;
 
   /**
    * Hash over the extension options of the deposit, 0 if there
    * were not extension options.
    */
-  struct TALER_ExtensionContractHash h_extensions GNUNET_PACKED;
+  struct TALER_ExtensionContractHashP h_extensions GNUNET_PACKED;
 
   /**
    * Time when this confirmation was generated / when the exchange received
@@ -636,7 +642,7 @@ struct TALER_RefundRequestPS
    * Hash over the proposal data to identify the contract
    * which is being refunded.
    */
-  struct TALER_PrivateContractHash h_contract_terms GNUNET_PACKED;
+  struct TALER_PrivateContractHashP h_contract_terms GNUNET_PACKED;
 
   /**
    * The coin's public key.  This is the value that must have been
@@ -672,7 +678,7 @@ struct TALER_RefundConfirmationPS
    * Hash over the proposal data to identify the contract
    * which is being refunded.
    */
-  struct TALER_PrivateContractHash h_contract_terms GNUNET_PACKED;
+  struct TALER_PrivateContractHashP h_contract_terms GNUNET_PACKED;
 
   /**
    * The coin's public key.  This is the value that must have been
@@ -719,7 +725,7 @@ struct TALER_RefreshMeltCoinAffirmationPS
   /**
    * Hash over the denomination public key used to sign the coin.
    */
-  struct TALER_DenominationHash h_denom_pub GNUNET_PACKED;
+  struct TALER_DenominationHashP h_denom_pub GNUNET_PACKED;
 
   /**
    * If age commitment was provided during the withdrawal of the coin, this is
@@ -866,7 +872,7 @@ struct TALER_ExchangeAccountSetupSuccessPS
    * Hash over the payto for which the signature was
    * made.
    */
-  struct TALER_PaytoHash h_payto;
+  struct TALER_PaytoHashP h_payto;
 
   /**
    * When was the signature made.
@@ -952,7 +958,7 @@ struct TALER_MasterAddWirePS
   /**
    * Hash over the exchange's payto URI.
    */
-  struct TALER_PaytoHash h_payto GNUNET_PACKED;
+  struct TALER_PaytoHashP h_payto GNUNET_PACKED;
 };
 
 
@@ -977,7 +983,7 @@ struct TALER_MasterDelWirePS
   /**
    * Hash over the exchange's payto URI.
    */
-  struct TALER_PaytoHash h_payto GNUNET_PACKED;
+  struct TALER_PaytoHashP h_payto GNUNET_PACKED;
 
 };
 
@@ -997,7 +1003,7 @@ struct TALER_MasterExtensionConfigurationPS
   /**
    * Hash of the JSON object that represents the configuration of an extension.
    */
-  struct TALER_ExtensionConfigHash h_config GNUNET_PACKED;
+  struct TALER_ExtensionConfigHashP h_config GNUNET_PACKED;
 };
 
 
@@ -1073,7 +1079,7 @@ struct TALER_DenominationKeyValidityPS
    * Hash code of the denomination public key. (Used to avoid having
    * the variable-size RSA key in this struct.)
    */
-  struct TALER_DenominationHash denom_hash GNUNET_PACKED;
+  struct TALER_DenominationHashP denom_hash GNUNET_PACKED;
 
 };
 
@@ -1156,7 +1162,7 @@ struct TALER_ExchangeKeyValidityPS
    * Hash code of the denomination public key. (Used to avoid having
    * the variable-size RSA key in this struct.)
    */
-  struct TALER_DenominationHash denom_hash GNUNET_PACKED;
+  struct TALER_DenominationHashP denom_hash GNUNET_PACKED;
 
 };
 
@@ -1176,7 +1182,7 @@ struct TALER_MasterWireDetailsPS
   /**
    * Hash over the account holder's payto:// URL.
    */
-  struct TALER_PaytoHash h_wire_details GNUNET_PACKED;
+  struct TALER_PaytoHashP h_wire_details GNUNET_PACKED;
 
 };
 
@@ -1197,7 +1203,7 @@ struct TALER_MerchantWireDetailsPS
    * Salted hash over the account holder's payto:// URL and
    * the salt, as done by #TALER_merchant_wire_signature_hash().
    */
-  struct TALER_MerchantWireHash h_wire_details GNUNET_PACKED;
+  struct TALER_MerchantWireHashP h_wire_details GNUNET_PACKED;
 
 };
 
@@ -1257,7 +1263,7 @@ struct TALER_MasterDenominationKeyRevocationPS
   /**
    * Hash of the denomination key.
    */
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
 };
 
@@ -1294,12 +1300,12 @@ struct TALER_DepositTrackPS
   /**
    * Hash over the proposal data of the contract for which this deposit is made.
    */
-  struct TALER_PrivateContractHash h_contract_terms GNUNET_PACKED;
+  struct TALER_PrivateContractHashP h_contract_terms GNUNET_PACKED;
 
   /**
    * Hash over the wiring information of the merchant.
    */
-  struct TALER_MerchantWireHash h_wire GNUNET_PACKED;
+  struct TALER_MerchantWireHashP h_wire GNUNET_PACKED;
 
   /**
    * The Merchant's public key.  The deposit inquiry request is to be
@@ -1326,7 +1332,7 @@ struct TALER_WireDepositDetailP
   /**
    * Hash of the contract
    */
-  struct TALER_PrivateContractHash h_contract_terms;
+  struct TALER_PrivateContractHashP h_contract_terms;
 
   /**
    * Time when the wire transfer was performed by the exchange.
@@ -1381,7 +1387,7 @@ struct TALER_WireDepositDataPS
   /**
    * Hash of bank account of the merchant.
    */
-  struct TALER_PaytoHash h_payto;
+  struct TALER_PaytoHashP h_payto;
 
   /**
    * Hash of the individual deposits that were aggregated,
@@ -1406,7 +1412,7 @@ struct TALER_ProposalDataPS
    * Hash of the JSON contract in UTF-8 including 0-termination,
    * using JSON_COMPACT | JSON_SORT_KEYS
    */
-  struct TALER_PrivateContractHash hash;
+  struct TALER_PrivateContractHashP hash;
 };
 
 /**
@@ -1424,7 +1430,7 @@ struct TALER_PaymentResponsePS
   /**
    * Hash of the proposal data associated with this confirmation
    */
-  struct TALER_PrivateContractHash h_contract_terms;
+  struct TALER_PrivateContractHashP h_contract_terms;
 };
 
 
@@ -1443,12 +1449,12 @@ struct TALER_ConfirmWirePS
   /**
    * Hash over the wiring information of the merchant.
    */
-  struct TALER_MerchantWireHash h_wire GNUNET_PACKED;
+  struct TALER_MerchantWireHashP h_wire GNUNET_PACKED;
 
   /**
    * Hash over the contract for which this deposit is made.
    */
-  struct TALER_PrivateContractHash h_contract_terms GNUNET_PACKED;
+  struct TALER_PrivateContractHashP h_contract_terms GNUNET_PACKED;
 
   /**
    * Raw value (binary encoding) of the wire transfer subject.
@@ -1493,7 +1499,7 @@ struct TALER_RecoupRequestPS
   /**
    * Hash of the (revoked) denomination public key of the coin.
    */
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   /**
    * Blinding factor that was used to withdraw the coin.
@@ -1600,7 +1606,7 @@ struct TALER_DenominationUnknownAffirmationPS
   /**
    * Hash of the public denomination key we do not know.
    */
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 };
 
 
@@ -1630,7 +1636,7 @@ struct TALER_DenominationExpiredAffirmationPS
   /**
    * Hash of the public denomination key we do not know.
    */
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
 };
 
@@ -1670,7 +1676,7 @@ struct TALER_ReserveCloseConfirmationPS
   /**
    * Hash of the receiver's bank account.
    */
-  struct TALER_PaytoHash h_payto;
+  struct TALER_PaytoHashP h_payto;
 
   /**
    * Wire transfer subject.
@@ -1704,6 +1710,27 @@ struct TALER_MerchantPaySessionSigPS
 
 };
 
+/**
+ * Used for attestation of a particular age
+ */
+struct TALER_AgeAttestationPS
+{
+  /**
+   * Purpose must be #TALER_SIGNATURE_WALLET_AGE_ATTESTATION.
+   */
+  struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
+
+  /**
+   * Age mask that defines the underlying age groups
+   */
+  struct TALER_AgeMask mask;
+
+  /**
+   * The particular age that this attestation is for
+   */
+  uint8_t age;
+};
+
 
 GNUNET_NETWORK_STRUCT_END
 

src/include/taler_testing_lib.h

@@ -2483,8 +2483,9 @@ TALER_TESTING_get_trait (const struct TALER_TESTING_Trait *traits,
 #define TALER_TESTING_INDEXED_TRAITS(op)                               \
   op (denom_pub, const struct TALER_EXCHANGE_DenomPublicKey)           \
   op (denom_sig, const struct TALER_DenominationSignature)             \
-  op (age_commitment, struct TALER_AgeCommitment)                      \
-  op (h_age_commitment, struct TALER_AgeCommitmentHash)                \
+  op (age_commitment, const struct TALER_AgeCommitment)                \
+  op (age_commitment_proof, const struct TALER_AgeCommitmentProof)     \
+  op (h_age_commitment, const struct TALER_AgeCommitmentHash)          \
   op (planchet_secrets, const struct TALER_PlanchetMasterSecretP)      \
   op (exchange_wd_value, const struct TALER_ExchangeWithdrawValues)    \
   op (coin_priv, const struct TALER_CoinSpendPrivateKeyP)              \

src/include/taler_util.h

@@ -125,7 +125,7 @@ TALER_b2s (const void *buf,
  * @param obj address of object to convert
  * @return string representing the binary obj buffer
  */
-#define TALER_B2S(obj) TALER_b2s (obj, sizeof (*obj))
+#define TALER_B2S(obj) TALER_b2s ((obj), sizeof (*(obj)))
 
 
 /**

src/json/json.c

@@ -490,7 +490,7 @@ forget (const json_t *in,
 
 enum GNUNET_GenericReturnValue
 TALER_JSON_contract_hash (const json_t *json,
-                          struct TALER_PrivateContractHash *hc)
+                          struct TALER_PrivateContractHashP *hc)
 {
   enum GNUNET_GenericReturnValue ret;
   json_t *cjson;
@@ -1009,7 +1009,7 @@ TALER_JSON_get_error_code2 (const void *data,
 
 void
 TALER_deposit_extension_hash (const json_t *extensions,
-                              struct TALER_ExtensionContractHash *ech)
+                              struct TALER_ExtensionContractHashP *ech)
 {
   GNUNET_assert (GNUNET_OK ==
                  dump_and_hash (extensions,
@@ -1038,7 +1038,7 @@ TALER_JSON_canonicalize (const json_t *input)
 
 enum GNUNET_GenericReturnValue
 TALER_JSON_extensions_config_hash (const json_t *config,
-                                   struct TALER_ExtensionConfigHash *ech)
+                                   struct TALER_ExtensionConfigHashP *ech)
 {
   return dump_and_hash (config,
                         "taler-extension-configuration",

src/json/json_helper.c

@@ -253,7 +253,7 @@ parse_denom_pub (void *cls,
     GNUNET_JSON_spec_string ("cipher",
                              &cipher),
     GNUNET_JSON_spec_uint32 ("age_mask",
-                             &denom_pub->age_mask.mask),
+                             &denom_pub->age_mask.bits),
     GNUNET_JSON_spec_end ()
   };
   const char *emsg;

src/json/json_pack.c

@@ -64,7 +64,7 @@ TALER_JSON_pack_denom_pub (
           GNUNET_JSON_pack_string ("cipher",
                                    "RSA"),
           GNUNET_JSON_pack_uint64 ("age_mask",
-                                   pk->age_mask.mask),
+                                   pk->age_mask.bits),
           GNUNET_JSON_pack_rsa_public_key ("rsa_public_key",
                                            pk->details.rsa_public_key));
     break;
@@ -74,7 +74,7 @@ TALER_JSON_pack_denom_pub (
           GNUNET_JSON_pack_string ("cipher",
                                    "CS"),
           GNUNET_JSON_pack_uint64 ("age_mask",
-                                   pk->age_mask.mask),
+                                   pk->age_mask.bits),
           GNUNET_JSON_pack_data_varsize ("cs_public_key",
                                          &pk->details.cs_public_key,
                                          sizeof (pk->details.cs_public_key)));

src/json/json_wire.c

@@ -26,7 +26,7 @@
 
 enum GNUNET_GenericReturnValue
 TALER_JSON_merchant_wire_signature_hash (const json_t *wire_s,
-                                         struct TALER_MerchantWireHash *hc)
+                                         struct TALER_MerchantWireHashP *hc)
 {
   const char *payto_uri;
   struct TALER_WireSaltP salt;

src/json/test_json.c

@@ -91,8 +91,8 @@ path_cb (void *cls,
 static int
 test_contract (void)
 {
-  struct TALER_PrivateContractHash h1;
-  struct TALER_PrivateContractHash h2;
+  struct TALER_PrivateContractHashP h1;
+  struct TALER_PrivateContractHashP h2;
   json_t *c1;
   json_t *c2;
   json_t *c3;
@@ -384,7 +384,7 @@ test_json_canon (void)
 static int
 test_rfc8785 (void)
 {
-  struct TALER_PrivateContractHash h1;
+  struct TALER_PrivateContractHashP h1;
   json_t *c1;
 
   c1 = json_pack ("{s:s}",

src/lib/auditor_api_deposit_confirmation.c

@@ -170,9 +170,9 @@ handle_deposit_confirmation_finished (void *cls,
  * @return #GNUNET_OK if signatures are OK, #GNUNET_SYSERR if not
  */
 static enum GNUNET_GenericReturnValue
-verify_signatures (const struct TALER_MerchantWireHash *h_wire,
-                   const struct TALER_ExtensionContractHash *h_extensions,
-                   const struct TALER_PrivateContractHash *h_contract_terms,
+verify_signatures (const struct TALER_MerchantWireHashP *h_wire,
+                   const struct TALER_ExtensionContractHashP *h_extensions,
+                   const struct TALER_PrivateContractHashP *h_contract_terms,
                    struct GNUNET_TIME_Timestamp exchange_timestamp,
                    struct GNUNET_TIME_Timestamp wire_deadline,
                    struct GNUNET_TIME_Timestamp refund_deadline,
@@ -236,9 +236,9 @@ verify_signatures (const struct TALER_MerchantWireHash *h_wire,
 struct TALER_AUDITOR_DepositConfirmationHandle *
 TALER_AUDITOR_deposit_confirmation (
   struct TALER_AUDITOR_Handle *auditor,
-  const struct TALER_MerchantWireHash *h_wire,
-  const struct TALER_ExtensionContractHash *h_extensions,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_MerchantWireHashP *h_wire,
+  const struct TALER_ExtensionContractHashP *h_extensions,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   struct GNUNET_TIME_Timestamp exchange_timestamp,
   struct GNUNET_TIME_Timestamp wire_deadline,
   struct GNUNET_TIME_Timestamp refund_deadline,

src/lib/exchange_api_auditor_add_denomination.c

@@ -142,7 +142,7 @@ struct TALER_EXCHANGE_AuditorAddDenominationHandle *
 TALER_EXCHANGE_add_auditor_denomination (
   struct GNUNET_CURL_Context *ctx,
   const char *url,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_AuditorPublicKeyP *auditor_pub,
   const struct TALER_AuditorSignatureP *auditor_sig,
   TALER_EXCHANGE_AuditorAddDenominationCallback cb,

src/lib/exchange_api_common.c

@@ -124,8 +124,8 @@ TALER_EXCHANGE_parse_reserve_history (
                               "WITHDRAW"))
     {
       struct TALER_ReserveSignatureP sig;
-      struct TALER_DenominationHash h_denom_pub;
-      struct TALER_BlindedCoinHash bch;
+      struct TALER_DenominationHashP h_denom_pub;
+      struct TALER_BlindedCoinHashP bch;
       struct TALER_Amount withdraw_fee;
       struct GNUNET_JSON_Specification withdraw_spec[] = {
         GNUNET_JSON_spec_fixed_auto ("reserve_sig",
@@ -411,7 +411,7 @@ TALER_EXCHANGE_verify_coin_history (
   const char *currency,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   json_t *history,
-  struct TALER_DenominationHash *h_denom_pub,
+  struct TALER_DenominationHashP *h_denom_pub,
   struct TALER_Amount *total)
 {
   size_t len;
@@ -470,14 +470,14 @@ TALER_EXCHANGE_verify_coin_history (
     if (0 == strcasecmp (type,
                          "DEPOSIT"))
     {
-      struct TALER_MerchantWireHash h_wire;
-      struct TALER_PrivateContractHash h_contract_terms;
-      // struct TALER_ExtensionContractHash h_extensions; // FIXME!
+      struct TALER_MerchantWireHashP h_wire;
+      struct TALER_PrivateContractHashP h_contract_terms;
+      // struct TALER_ExtensionContractHashP h_extensions; // FIXME!
       struct GNUNET_TIME_Timestamp wallet_timestamp;
       struct TALER_MerchantPublicKeyP merchant_pub;
       struct GNUNET_TIME_Timestamp refund_deadline = {0};
       struct TALER_CoinSpendSignatureP sig;
-      struct TALER_AgeCommitmentHash *hac = NULL;
+      struct TALER_AgeCommitmentHash hac = {0};
       struct GNUNET_JSON_Specification spec[] = {
         GNUNET_JSON_spec_fixed_auto ("coin_sig",
                                      &sig),
@@ -487,6 +487,9 @@ TALER_EXCHANGE_verify_coin_history (
                                      &h_wire),
         GNUNET_JSON_spec_fixed_auto ("h_denom_pub",
                                      h_denom_pub),
+        GNUNET_JSON_spec_mark_optional (
+          GNUNET_JSON_spec_fixed_auto ("h_age_commitment",
+                                       &hac)),
         GNUNET_JSON_spec_timestamp ("timestamp",
                                     &wallet_timestamp),
         GNUNET_JSON_spec_mark_optional (
@@ -508,11 +511,12 @@ TALER_EXCHANGE_verify_coin_history (
         return GNUNET_SYSERR;
       }
       if (GNUNET_OK !=
-          TALER_wallet_deposit_verify (&amount,
+          TALER_wallet_deposit_verify (
+            &amount,
             &fee,
             &h_wire,
             &h_contract_terms,
-                                       hac,
+            TALER_AgeCommitmentHash_isNullOrZero (&hac) ?  NULL : &hac,
             NULL /* h_extensions! */,
             h_denom_pub,
             wallet_timestamp,
@@ -585,31 +589,27 @@ TALER_EXCHANGE_verify_coin_history (
         }
       }
 
-      {
-        const struct TALER_AgeCommitmentHash *ahc = &h_age_commitment;
-
-        if (TALER_AgeCommitmentHash_isNullOrZero (ahc))
-          ahc = NULL;
 
       if (GNUNET_OK !=
-            TALER_wallet_melt_verify (&amount,
+          TALER_wallet_melt_verify (
+            &amount,
             &fee,
             &rc,
             h_denom_pub,
-                                      ahc,
+            TALER_AgeCommitmentHash_isNullOrZero (&h_age_commitment) ?
+            NULL : &h_age_commitment,
             coin_pub,
             &sig))
       {
         GNUNET_break_op (0);
         return GNUNET_SYSERR;
       }
-      }
       add = GNUNET_YES;
     }
     else if (0 == strcasecmp (type,
                               "REFUND"))
     {
-      struct TALER_PrivateContractHash h_contract_terms;
+      struct TALER_PrivateContractHashP h_contract_terms;
       struct TALER_MerchantPublicKeyP merchant_pub;
       struct TALER_MerchantSignatureP sig;
       struct TALER_Amount refund_fee;

src/lib/exchange_api_csr_withdraw.c

@@ -240,7 +240,7 @@ TALER_EXCHANGE_csr_withdraw (struct TALER_EXCHANGE_Handle *exchange,
                                      sizeof(struct TALER_CsNonce)),
       GNUNET_JSON_pack_data_varsize ("denom_pub_hash",
                                      &pk->h_key,
-                                     sizeof(struct TALER_DenominationHash)));
+                                     sizeof(struct TALER_DenominationHashP)));
     GNUNET_assert (NULL != req);
     ctx = TEAH_handle_to_context (exchange);
     eh = TALER_EXCHANGE_curl_easy_get_ (csrh->url);

src/lib/exchange_api_deposit.c

@@ -83,18 +83,18 @@ struct TALER_EXCHANGE_DepositHandle
   /**
    * Hash over the contract for which this deposit is made.
    */
-  struct TALER_PrivateContractHash h_contract_terms GNUNET_PACKED;
+  struct TALER_PrivateContractHashP h_contract_terms GNUNET_PACKED;
 
   /**
    * Hash over the wiring information of the merchant.
    */
-  struct TALER_MerchantWireHash h_wire GNUNET_PACKED;
+  struct TALER_MerchantWireHashP h_wire GNUNET_PACKED;
 
   /**
    * Hash over the extension options of the deposit, 0 if there
    * were not extension options.
    */
-  struct TALER_ExtensionContractHash h_extensions GNUNET_PACKED;
+  struct TALER_ExtensionContractHashP h_extensions GNUNET_PACKED;
 
   /**
    * Time when this confirmation was generated / when the exchange received
@@ -242,7 +242,7 @@ verify_deposit_signature_conflict (
   json_t *history;
   struct TALER_Amount total;
   enum TALER_ErrorCode ec;
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   memset (&h_denom_pub,
           0,
@@ -476,14 +476,14 @@ handle_deposit_finished (void *cls,
 static enum GNUNET_GenericReturnValue
 verify_signatures (const struct TALER_EXCHANGE_DenomPublicKey *dki,
                    const struct TALER_Amount *amount,
-                   const struct TALER_MerchantWireHash *h_wire,
-                   const struct TALER_PrivateContractHash *h_contract_terms,
-                   const struct TALER_ExtensionContractHash *ech,
+                   const struct TALER_MerchantWireHashP *h_wire,
+                   const struct TALER_PrivateContractHashP *h_contract_terms,
+                   const struct TALER_ExtensionContractHashP *ech,
                    const struct TALER_CoinSpendPublicKeyP *coin_pub,
                    const struct TALER_AgeCommitmentHash *h_age_commitment,
                    const struct TALER_DenominationSignature *denom_sig,
                    const struct TALER_DenominationPublicKey *denom_pub,
-                   const struct TALER_DenominationHash *denom_pub_hash,
+                   const struct TALER_DenominationHashP *denom_pub_hash,
                    struct GNUNET_TIME_Timestamp timestamp,
                    const struct TALER_MerchantPublicKeyP *merchant_pub,
                    struct GNUNET_TIME_Timestamp refund_deadline,
@@ -554,7 +554,7 @@ TALER_EXCHANGE_deposit (
   struct GNUNET_TIME_Timestamp wire_deadline,
   const char *merchant_payto_uri,
   const struct TALER_WireSaltP *wire_salt,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   const struct TALER_AgeCommitmentHash *h_age_commitment,
   const json_t *extension_details,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
@@ -574,10 +574,10 @@ TALER_EXCHANGE_deposit (
   struct GNUNET_CURL_Context *ctx;
   json_t *deposit_obj;
   CURL *eh;
-  struct TALER_MerchantWireHash h_wire;
-  struct TALER_DenominationHash denom_pub_hash;
+  struct TALER_MerchantWireHashP h_wire;
+  struct TALER_DenominationHashP denom_pub_hash;
   struct TALER_Amount amount_without_fee;
-  struct TALER_ExtensionContractHash ech;
+  struct TALER_ExtensionContractHashP ech;
   char arg_str[sizeof (struct TALER_CoinSpendPublicKeyP) * 2 + 32];
 
   if (NULL != extension_details)

src/lib/exchange_api_deposits_get.c

@@ -262,8 +262,8 @@ struct TALER_EXCHANGE_DepositGetHandle *
 TALER_EXCHANGE_deposits_get (
   struct TALER_EXCHANGE_Handle *exchange,
   const struct TALER_MerchantPrivateKeyP *merchant_priv,
-  const struct TALER_MerchantWireHash *h_wire,
-  const struct TALER_PrivateContractHash *h_contract_terms,
+  const struct TALER_MerchantWireHashP *h_wire,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
   const struct TALER_CoinSpendPublicKeyP *coin_pub,
   TALER_EXCHANGE_DepositGetCallback cb,
   void *cb_cls)
@@ -274,9 +274,9 @@ TALER_EXCHANGE_deposits_get (
   struct GNUNET_CURL_Context *ctx;
   CURL *eh;
   char arg_str[(sizeof (struct TALER_CoinSpendPublicKeyP)
-                + sizeof (struct TALER_MerchantWireHash)
+                + sizeof (struct TALER_MerchantWireHashP)
                 + sizeof (struct TALER_MerchantPublicKeyP)
-                + sizeof (struct TALER_PrivateContractHash)
+                + sizeof (struct TALER_PrivateContractHashP)
                 + sizeof (struct TALER_MerchantSignatureP)) * 2 + 48];
 
   if (GNUNET_YES !=
@@ -300,8 +300,8 @@ TALER_EXCHANGE_deposits_get (
     char cpub_str[sizeof (struct TALER_CoinSpendPublicKeyP) * 2];
     char mpub_str[sizeof (struct TALER_MerchantPublicKeyP) * 2];
     char msig_str[sizeof (struct TALER_MerchantSignatureP) * 2];
-    char chash_str[sizeof (struct TALER_PrivateContractHash) * 2];
-    char whash_str[sizeof (struct TALER_MerchantWireHash) * 2];
+    char chash_str[sizeof (struct TALER_PrivateContractHashP) * 2];
+    char whash_str[sizeof (struct TALER_MerchantWireHashP) * 2];
     char *end;
 
     end = GNUNET_STRINGS_data_to_string (h_wire,

src/lib/exchange_api_handle.c

@@ -437,7 +437,7 @@ parse_json_auditor (struct TALER_EXCHANGE_AuditorInformation *auditor,
   off = 0;
   json_array_foreach (keys, i, key) {
     struct TALER_AuditorSignatureP auditor_sig;
-    struct TALER_DenominationHash denom_h;
+    struct TALER_DenominationHashP denom_h;
     const struct TALER_EXCHANGE_DenomPublicKey *dk;
     unsigned int dk_off;
     struct GNUNET_JSON_Specification kspec[] = {
@@ -1005,7 +1005,7 @@ decode_keys_json (const json_t *resp_obj,
       EXITIF (JSON_ARRAY != json_typeof (recoup_array));
 
       json_array_foreach (recoup_array, index, recoup_info) {
-        struct TALER_DenominationHash h_denom_pub;
+        struct TALER_DenominationHashP h_denom_pub;
         struct GNUNET_JSON_Specification spec[] = {
           GNUNET_JSON_spec_fixed_auto ("h_denom_pub",
                                        &h_denom_pub),
@@ -2099,7 +2099,7 @@ TALER_EXCHANGE_destroy_denomination_key (
 const struct TALER_EXCHANGE_DenomPublicKey *
 TALER_EXCHANGE_get_denomination_key_by_hash (
   const struct TALER_EXCHANGE_Keys *keys,
-  const struct TALER_DenominationHash *hc)
+  const struct TALER_DenominationHashP *hc)
 {
   for (unsigned int i = 0; i<keys->num_denom_keys; i++)
     if (0 == GNUNET_memcmp (hc,

src/lib/exchange_api_kyc_check.c

@@ -64,7 +64,7 @@ struct TALER_EXCHANGE_KycCheckHandle
   /**
    * Hash of the payto:// URL that is being KYC'ed.
    */
-  struct TALER_PaytoHash h_payto;
+  struct TALER_PaytoHashP h_payto;
 };
 
 
@@ -216,7 +216,7 @@ handle_kyc_check_finished (void *cls,
 struct TALER_EXCHANGE_KycCheckHandle *
 TALER_EXCHANGE_kyc_check (struct TALER_EXCHANGE_Handle *exchange,
                           uint64_t payment_target,
-                          const struct TALER_PaytoHash *h_payto,
+                          const struct TALER_PaytoHashP *h_payto,
                           struct GNUNET_TIME_Relative timeout,
                           TALER_EXCHANGE_KycStatusCallback cb,
                           void *cb_cls)

src/lib/exchange_api_link.c

@@ -67,9 +67,10 @@ struct TALER_EXCHANGE_LinkHandle
   struct TALER_CoinSpendPrivateKeyP coin_priv;
 
   /**
-   * Age commitment of the coin, might be NULL, required to re-generate age commitments
+   * Age commitment and proof of the original coin, might be NULL.
+   * Required to derive the new age commitment and proof.
    */
-  const struct TALER_AgeCommitment *age_commitment;
+  const struct TALER_AgeCommitmentProof *age_commitment_proof;
 
 };
 
@@ -80,7 +81,6 @@ struct TALER_EXCHANGE_LinkHandle
  *
  * @param lh link handle
  * @param json json reply with the data for one coin
- * @param coin_num number of the coin
  * @param trans_pub our transfer public key
  * @param[out] lci where to return coin details
  * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
@@ -88,7 +88,6 @@ struct TALER_EXCHANGE_LinkHandle
 static enum GNUNET_GenericReturnValue
 parse_link_coin (const struct TALER_EXCHANGE_LinkHandle *lh,
                  const json_t *json,
-                 uint32_t coin_num,
                  const struct TALER_TransferPublicKeyP *trans_pub,
                  struct TALER_EXCHANGE_LinkedCoinInfo *lci)
 {
@@ -117,8 +116,7 @@ parse_link_coin (const struct TALER_EXCHANGE_LinkHandle *lh,
   };
   struct TALER_TransferSecretP secret;
   struct TALER_PlanchetDetail pd;
-  struct TALER_CoinPubHash c_hash;
-  struct TALER_AgeCommitmentHash *hac = NULL;
+  struct TALER_CoinPubHashP c_hash;
 
   /* parse reply */
   memset (&nonce,
@@ -136,7 +134,7 @@ parse_link_coin (const struct TALER_EXCHANGE_LinkHandle *lh,
                                       &lh->coin_priv,
                                       &secret);
   TALER_transfer_secret_to_planchet_secret (&secret,
-                                            coin_num,
+                                            coin_idx,
                                             &lci->ps);
   TALER_planchet_setup_coin_priv (&lci->ps,
                                   &alg_values,
@@ -145,28 +143,26 @@ parse_link_coin (const struct TALER_EXCHANGE_LinkHandle *lh,
                                          &alg_values,
                                          &bks);
 
-  /* Derive the age commitment and calculate the hash */
-  if (NULL != lh->age_commitment)
-  {
-    struct TALER_AgeCommitment nac = {0};
-    struct TALER_AgeCommitmentHash h = {0};
-    uint32_t seed  = secret.key.bits[0];
+  lci->age_commitment_proof = NULL;
+  lci->h_age_commitment = NULL;
 
-    if (GNUNET_OK !=
-        TALER_age_commitment_derive (
-          lh->age_commitment,
-          seed,
-          &nac))
+  /* Derive the age commitment and calculate the hash */
+  if (NULL != lh->age_commitment_proof)
   {
-      GNUNET_break_op (0);
-      return GNUNET_SYSERR;
-    }
+    uint64_t seed  = (uint64_t) secret.key.bits[0]
+                     | (uint64_t) secret.key.bits[1] << 32;
+    lci->age_commitment_proof = GNUNET_new (struct TALER_AgeCommitmentProof);
+    lci->h_age_commitment = GNUNET_new (struct TALER_AgeCommitmentHash);
+
+    GNUNET_assert (GNUNET_OK ==
+                   TALER_age_commitment_derive (
+                     lh->age_commitment_proof,
+                     seed,
+                     lci->age_commitment_proof));
 
     TALER_age_commitment_hash (
-      &nac,
-      &h);
-
-    hac = &h;
+      &(lci->age_commitment_proof->commitment),
+      lci->h_age_commitment);
   }
 
   if (GNUNET_OK !=
@@ -174,7 +170,7 @@ parse_link_coin (const struct TALER_EXCHANGE_LinkHandle *lh,
                               &alg_values,
                               &bks,
                               &lci->coin_priv,
-                              hac,
+                              lci->h_age_commitment,
                               &c_hash,
                               &pd))
   {
@@ -207,7 +203,7 @@ parse_link_coin (const struct TALER_EXCHANGE_LinkHandle *lh,
   /* verify link_sig */
   {
     struct TALER_CoinSpendPublicKeyP old_coin_pub;
-    struct TALER_BlindedCoinHash coin_envelope_hash;
+    struct TALER_BlindedCoinHashP coin_envelope_hash;
 
     GNUNET_CRYPTO_eddsa_key_get_public (&lh->coin_priv.eddsa_priv,
                                         &old_coin_pub.eddsa_pub);
@@ -351,7 +347,6 @@ parse_link_ok (struct TALER_EXCHANGE_LinkHandle *lh,
             parse_link_coin (lh,
                              json_array_get (jsona,
                                              i),
-                             i,
                              &trans_pub,
                              lci))
         {
@@ -476,7 +471,8 @@ handle_link_finished (void *cls,
 struct TALER_EXCHANGE_LinkHandle *
 TALER_EXCHANGE_link (struct TALER_EXCHANGE_Handle *exchange,
                      const struct TALER_CoinSpendPrivateKeyP *coin_priv,
-                     const struct TALER_AgeCommitment *age_commitment,
+                     const struct
+                     TALER_AgeCommitmentProof *age_commitment_proof,
                      TALER_EXCHANGE_LinkCallback link_cb,
                      void *link_cb_cls)
 {
@@ -515,7 +511,7 @@ TALER_EXCHANGE_link (struct TALER_EXCHANGE_Handle *exchange,
   lh->link_cb = link_cb;
   lh->link_cb_cls = link_cb_cls;
   lh->coin_priv = *coin_priv;
-  lh->age_commitment = age_commitment;
+  lh->age_commitment_proof = age_commitment_proof;
   lh->url = TEAH_path_to_url (exchange,
                               arg_str);
   if (NULL == lh->url)

src/lib/exchange_api_management_get_keys.c

@@ -215,7 +215,7 @@ handle_ok (struct TALER_EXCHANGE_ManagementGetKeysHandle *gh,
     }
 
     {
-      struct TALER_DenominationHash h_denom_pub;
+      struct TALER_DenominationHashP h_denom_pub;
       struct GNUNET_TIME_Relative duration
         = GNUNET_TIME_absolute_get_difference (
             denom_key->valid_from.abs_time,

src/lib/exchange_api_management_revoke_denomination_key.c

@@ -126,7 +126,7 @@ struct TALER_EXCHANGE_ManagementRevokeDenominationKeyHandle *
 TALER_EXCHANGE_management_revoke_denomination_key (
   struct GNUNET_CURL_Context *ctx,
   const char *url,
-  const struct TALER_DenominationHash *h_denom_pub,
+  const struct TALER_DenominationHashP *h_denom_pub,
   const struct TALER_MasterSignatureP *master_sig,
   TALER_EXCHANGE_ManagementRevokeDenominationKeyCallback cb,
   void *cb_cls)

src/lib/exchange_api_melt.c

@@ -199,7 +199,7 @@ verify_melt_signature_denom_conflict (struct TALER_EXCHANGE_MeltHandle *mh,
 {
   json_t *history;
   struct TALER_Amount total;
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   memset (&h_denom_pub,
           0,
@@ -246,7 +246,7 @@ verify_melt_signature_spend_conflict (struct TALER_EXCHANGE_MeltHandle *mh,
   };
   const struct MeltedCoin *mc;
   enum TALER_ErrorCode ec;
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
 
   /* parse JSON reply */
   if (GNUNET_OK !=
@@ -458,7 +458,7 @@ start_melt (struct TALER_EXCHANGE_MeltHandle *mh)
   struct GNUNET_CURL_Context *ctx;
   struct TALER_CoinSpendSignatureP confirm_sig;
   char arg_str[sizeof (struct TALER_CoinSpendPublicKeyP) * 2 + 32];
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
   struct TALER_ExchangeWithdrawValues alg_values[mh->rd->fresh_pks_len];
 
   for (unsigned int i = 0; i<mh->rd->fresh_pks_len; i++)
@@ -478,6 +478,7 @@ start_melt (struct TALER_EXCHANGE_MeltHandle *mh)
                           &mh->md.melted_coin.fee_melt,
                           &mh->md.rc,
                           &h_denom_pub,
+                          mh->md.melted_coin.h_age_commitment,
                           &mh->md.melted_coin.coin_priv,
                           &confirm_sig);
   GNUNET_CRYPTO_eddsa_key_get_public (&mh->md.melted_coin.coin_priv.eddsa_priv,
@@ -493,6 +494,12 @@ start_melt (struct TALER_EXCHANGE_MeltHandle *mh)
                             &mh->md.melted_coin.melt_amount_with_fee),
     GNUNET_JSON_pack_data_auto ("rc",
                                 &mh->md.rc),
+    GNUNET_JSON_pack_allow_null (
+      mh->md.melted_coin.h_age_commitment
+       ? GNUNET_JSON_pack_data_auto ("age_commitment_hash",
+                                     mh->md.melted_coin.h_age_commitment)
+       : GNUNET_JSON_pack_string ("age_commitment_hash",
+                                  NULL)),
     GNUNET_JSON_pack_allow_null (
       mh->send_rms
        ? GNUNET_JSON_pack_data_auto ("rms",

src/lib/exchange_api_recoup.c

@@ -169,7 +169,7 @@ handle_recoup_finished (void *cls,
       /* Insufficient funds, proof attached */
       json_t *history;
       struct TALER_Amount total;
-      struct TALER_DenominationHash h_denom_pub;
+      struct TALER_DenominationHashP h_denom_pub;
       const struct TALER_EXCHANGE_DenomPublicKey *dki;
       enum TALER_ErrorCode ec;
 
@@ -293,7 +293,7 @@ TALER_EXCHANGE_recoup (struct TALER_EXCHANGE_Handle *exchange,
   struct GNUNET_CURL_Context *ctx;
   struct TALER_CoinSpendSignatureP coin_sig;
   struct TALER_CoinSpendPublicKeyP coin_pub;
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
   json_t *recoup_obj;
   CURL *eh;
   char arg_str[sizeof (struct TALER_CoinSpendPublicKeyP) * 2 + 32];

src/lib/exchange_api_recoup_refresh.c

@@ -183,7 +183,7 @@ handle_recoup_refresh_finished (void *cls,
       /* Insufficient funds, proof attached */
       json_t *history;
       struct TALER_Amount total;
-      struct TALER_DenominationHash h_denom_pub;
+      struct TALER_DenominationHashP h_denom_pub;
       const struct TALER_EXCHANGE_DenomPublicKey *dki;
       enum TALER_ErrorCode ec;
 
@@ -297,7 +297,7 @@ TALER_EXCHANGE_recoup_refresh (
   struct GNUNET_CURL_Context *ctx;
   struct TALER_CoinSpendSignatureP coin_sig;
   struct TALER_CoinSpendPublicKeyP coin_pub;
-  struct TALER_DenominationHash h_denom_pub;
+  struct TALER_DenominationHashP h_denom_pub;
   json_t *recoup_obj;
   CURL *eh;
   char arg_str[sizeof (struct TALER_CoinSpendPublicKeyP) * 2 + 32];

src/lib/exchange_api_refresh_common.c

@@ -78,7 +78,8 @@ TALER_EXCHANGE_get_melt_data_ (
   md->melted_coin.fee_melt = rd->melt_pk.fees.refresh;
   md->melted_coin.original_value = rd->melt_pk.value;
   md->melted_coin.expire_deposit = rd->melt_pk.expire_deposit;
-  md->melted_coin.age_commitment = rd->age_commitment;
+  md->melted_coin.age_commitment_proof = rd->melt_age_commitment_proof;
+  md->melted_coin.h_age_commitment = rd->melt_h_age_commitment;
 
   GNUNET_assert (GNUNET_OK ==
                  TALER_amount_set_zero (rd->melt_amount.currency,
@@ -166,7 +167,7 @@ TALER_EXCHANGE_get_melt_data_ (
       struct TALER_RefreshCoinData *rcd = &md->rcd[i][j];
       union TALER_DenominationBlindingKeyP *bks = &fcd->bks[i];
       struct TALER_PlanchetDetail pd;
-      struct TALER_CoinPubHash c_hash;
+      struct TALER_CoinPubHashP c_hash;
       struct TALER_AgeCommitmentHash *ach = NULL;
 
       TALER_transfer_secret_to_planchet_secret (&trans_sec,
@@ -182,31 +183,26 @@ TALER_EXCHANGE_get_melt_data_ (
                                              bks);
 
       /* Handle age commitment, if present */
-      if (NULL != md->melted_coin.age_commitment)
+      if (NULL != md->melted_coin.age_commitment_proof)
       {
-        struct TALER_AgeCommitment new_ac;
-        struct TALER_AgeCommitmentHash hac;
-
-        /* We use the first 4 bytes of the trans_sec to generate a new age
+        /* We use the first 8 bytes of the trans_sec to generate a new age
          * commitment */
-        uint32_t age_seed = trans_sec.key.bits[0];
+        uint64_t age_seed = (uint64_t) trans_sec.key.bits[0]
+                            | (uint64_t) trans_sec.key.bits[1] << 32;
 
-        if (GNUNET_OK !=
+        fcd->age_commitment_proof[i] = GNUNET_new (struct
+                                                   TALER_AgeCommitmentProof);
+        ach = GNUNET_new (struct TALER_AgeCommitmentHash);
+
+        GNUNET_assert (GNUNET_OK ==
                        TALER_age_commitment_derive (
-              md->melted_coin.age_commitment,
-              age_seed + j,
-              &new_ac))
-        {
-          GNUNET_break_op (0);
-          TALER_EXCHANGE_free_melt_data_ (md);
-          return GNUNET_SYSERR;
-        }
+                         md->melted_coin.age_commitment_proof,
+                         age_seed,
+                         fcd->age_commitment_proof[i]));
 
         TALER_age_commitment_hash (
-          &new_ac,
-          &hac);
-
-        ach = &hac;
+          &fcd->age_commitment_proof[i]->commitment,
+          ach);
       }
 
       if (TALER_DENOMINATION_CS == alg_values[j].cipher)
@@ -225,7 +221,6 @@ TALER_EXCHANGE_get_melt_data_ (
         TALER_EXCHANGE_free_melt_data_ (md);
         return GNUNET_SYSERR;
       }
-
       rcd->blinded_planchet = pd.blinded_planchet;
       rcd->dk = &fcd->fresh_pk;
     }

src/lib/exchange_api_refresh_common.h

@@ -53,11 +53,11 @@ struct MeltedCoin
   struct TALER_Amount original_value;
 
   /**
-   * The original age commitment and its hash.  MUST be NULL if no age
-   * commitment was set.
+   * The original age commitment, its proof and its hash.  MUST be NULL if no
+   * age commitment was set.
    */
-  struct TALER_AgeCommitment *age_commitment;
-  struct TALER_AgeCommitmentHash *h_age_commitment;
+  const struct TALER_AgeCommitmentProof *age_commitment_proof;
+  const struct TALER_AgeCommitmentHash *h_age_commitment;
 
   /**
    * Timestamp indicating when coins of this denomination become invalid.
@@ -100,11 +100,11 @@ struct FreshCoinData
   struct TALER_CoinSpendPrivateKeyP coin_priv;
 
   /**
-   * Arrays age commitments to be created, one for each cut-and-choose
-   * dimension.  The entries in each list might be NULL and indicate no age
-   * commitment/restriction on the particular coin.
+   * Arrays of age commitments and proofs to be created, one for each
+   * cut-and-choose dimension.  The entries in each list might be NULL and
+   * indicate no age commitment/restriction on the particular coin.
    */
-  struct TALER_AgeCommitment *age_commitment[TALER_CNC_KAPPA];
+  struct TALER_AgeCommitmentProof *age_commitment_proof[TALER_CNC_KAPPA];
 
   /**
    * Blinding key secrets for the coins, depending on the