From bd77bcb52dcad4b761f3db0acaa6b71b112a31c2 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Mon, 14 Feb 2022 23:02:25 +0100
Subject: -towards fixing the protocol

---
 src/exchange/taler-exchange-httpd_recoup-refresh.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/exchange/taler-exchange-httpd_recoup-refresh.c')

diff --git a/src/exchange/taler-exchange-httpd_recoup-refresh.c b/src/exchange/taler-exchange-httpd_recoup-refresh.c
index 3e058894..829e2cbd 100644
--- a/src/exchange/taler-exchange-httpd_recoup-refresh.c
+++ b/src/exchange/taler-exchange-httpd_recoup-refresh.c
@@ -174,6 +174,7 @@ verify_and_execute_recoup_refresh (
   const struct TALER_CoinPublicInfo *coin,
   const struct TALER_ExchangeWithdrawValues *exchange_vals,
   const union TALER_DenominationBlindingKeyP *coin_bks,
+  const struct TALER_CsNonce *nonce,
   const struct TALER_CoinSpendSignatureP *coin_sig)
 {
   struct RecoupContext pc;
@@ -263,6 +264,9 @@ verify_and_execute_recoup_refresh (
         TALER_EC_EXCHANGE_RECOUP_REFRESH_BLINDING_FAILED,
         NULL);
     }
+    if (TALER_DENOMINATION_CS == blinded_planchet.cipher)
+      blinded_planchet.details.cs_blinded_planchet.nonce
+        = *nonce;
     TALER_coin_ev_hash (&blinded_planchet,
                         &coin->denom_pub_hash,
                         &h_blind);
@@ -360,6 +364,7 @@ TEH_handler_recoup_refresh (struct MHD_Connection *connection,
   union TALER_DenominationBlindingKeyP coin_bks;
   struct TALER_CoinSpendSignatureP coin_sig;
   struct TALER_ExchangeWithdrawValues exchange_vals;
+  struct TALER_CsNonce nonce;
   struct GNUNET_JSON_Specification spec[] = {
     GNUNET_JSON_spec_fixed_auto ("denom_pub_hash",
                                  &coin.denom_pub_hash),
@@ -371,12 +376,18 @@ TEH_handler_recoup_refresh (struct MHD_Connection *connection,
                                  &coin_bks),
     GNUNET_JSON_spec_fixed_auto ("coin_sig",
                                  &coin_sig),
+    GNUNET_JSON_spec_mark_optional (
+      GNUNET_JSON_spec_fixed_auto ("cs_nonce",
+                                   &nonce)),
     GNUNET_JSON_spec_end ()
   };
 
   memset (&coin,
           0,
           sizeof (coin));
+  memset (&nonce,
+          0,
+          sizeof (nonce));
   coin.coin_pub = *coin_pub;
   ret = TALER_MHD_parse_json_data (connection,
                                    root,
@@ -392,6 +403,7 @@ TEH_handler_recoup_refresh (struct MHD_Connection *connection,
                                              &coin,
                                              &exchange_vals,
                                              &coin_bks,
+                                             &nonce,
                                              &coin_sig);
     GNUNET_JSON_parse_free (spec);
     return res;
-- 
cgit v1.2.3