add new reserve status/history signatures

src/include/taler_crypto_lib.h

@@ -2778,7 +2778,7 @@ TALER_wallet_recoup_verify (
  * @param h_denom_pub hash of the denomiantion public key of the coin
  * @param coin_bks blinding factor used when withdrawing the coin
  * @param coin_priv coin key of the coin to be recouped
- * @param coin_sig resulting signature
+ * @param[out] coin_sig resulting signature
  */
 void
 TALER_wallet_recoup_sign (
@@ -2811,7 +2811,7 @@ TALER_wallet_recoup_refresh_verify (
  * @param h_denom_pub hash of the denomiantion public key of the coin
  * @param coin_bks blinding factor used when withdrawing the coin
  * @param coin_priv coin key of the coin to be recouped
- * @param coin_sig resulting signature
+ * @param[out] coin_sig resulting signature
  */
 void
 TALER_wallet_recoup_refresh_sign (
@@ -2821,6 +2821,68 @@ TALER_wallet_recoup_refresh_sign (
   struct TALER_CoinSpendSignatureP *coin_sig);
 
 
+/**
+ * Verify reserve history request signature.
+ *
+ * @param ts timestamp used
+ * @param history_fee how much did the wallet say it would pay
+ * @param reserve_pub reserve the history request was for
+ * @param reserve_sig resulting signature
+ * @return #GNUNET_OK if the signature is valid
+ */
+enum GNUNET_GenericReturnValue
+TALER_wallet_reserve_history_verify (
+  const struct GNUNET_TIME_Timestamp ts,
+  const struct TALER_Amount *history_fee,
+  const struct TALER_ReservePublicKeyP *reserve_pub,
+  const struct TALER_ReserveSignatureP *reserve_sig);
+
+
+/**
+ * Create reserve history request signature.
+ *
+ * @param ts timestamp used
+ * @param history_fee how much do we expect to pay
+ * @param reserve_pub reserve the history request is for
+ * @param[out] reserve_sig resulting signature
+ */
+void
+TALER_wallet_reserve_history_sign (
+  const struct GNUNET_TIME_Timestamp ts,
+  const struct TALER_Amount *history_fee,
+  const struct TALER_ReservePrivateKeyP *reserve_priv,
+  struct TALER_ReserveSignatureP *reserve_sig);
+
+
+/**
+ * Verify reserve status request signature.
+ *
+ * @param ts timestamp used
+ * @param reserve_pub reserve the status request was for
+ * @param reserve_sig resulting signature
+ * @return #GNUNET_OK if the signature is valid
+ */
+enum GNUNET_GenericReturnValue
+TALER_wallet_reserve_status_verify (
+  const struct GNUNET_TIME_Timestamp ts,
+  const struct TALER_ReservePublicKeyP *reserve_pub,
+  const struct TALER_ReserveSignatureP *reserve_sig);
+
+
+/**
+ * Create reserve status request signature.
+ *
+ * @param ts timestamp used
+ * @param reserve_pub reserve the status request is for
+ * @param[out] reserve_sig resulting signature
+ */
+void
+TALER_wallet_reserve_status_sign (
+  const struct GNUNET_TIME_Timestamp ts,
+  const struct TALER_ReservePrivateKeyP *reserve_priv,
+  struct TALER_ReserveSignatureP *reserve_sig);
+
+
 /* ********************* merchant signing ************************** */
 
 

src/include/taler_signatures.h

@@ -283,6 +283,16 @@
  */
 #define TALER_SIGNATURE_WALLET_AGE_ATTESTATION 1207
 
+/**
+ * Request full reserve history and pay for it.
+ */
+#define TALER_SIGNATURE_WALLET_RESERVE_HISTORY 1208
+
+/**
+ * Request detailed account status (for free).
+ */
+#define TALER_SIGNATURE_WALLET_RESERVE_STATUS 1209
+
 
 /******************************/
 /* Security module signatures */
@@ -443,6 +453,51 @@ struct TALER_LinkDataPS
 };
 
 
+/**
+ * Response by which a wallet requests an account status.
+ */
+struct TALER_ReserveStatusRequestPS
+{
+
+  /**
+   * Purpose is #TALER_SIGNATURE_WALLET_RESERVE_STATUS
+   */
+  struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
+
+  /**
+   * When did the wallet make the requst.
+   */
+  struct GNUNET_TIME_TimestampNBO request_timestamp;
+
+};
+
+
+/**
+ * Response by which a wallet requests a full
+ * reserve history and indicates it is willing
+ * to pay for it.
+ */
+struct TALER_ReserveHistoryRequestPS
+{
+
+  /**
+   * Purpose is #TALER_SIGNATURE_WALLET_RESERVE_HISTORY
+   */
+  struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
+
+  /**
+   * When did the wallet make the requst.
+   */
+  struct GNUNET_TIME_TimestampNBO request_timestamp;
+
+  /**
+   * How much does the exchange charge for the history?
+   */
+  struct TALER_AmountNBO history_fee;
+
+};
+
+
 /**
  * @brief Format used for to generate the signature on a request to withdraw
  * coins from a reserve.

src/util/wallet_signatures.c

@@ -373,4 +373,86 @@ TALER_wallet_account_setup_sign (
 }
 
 
+enum GNUNET_GenericReturnValue
+TALER_wallet_reserve_history_verify (
+  const struct GNUNET_TIME_Timestamp ts,
+  const struct TALER_Amount *history_fee,
+  const struct TALER_ReservePublicKeyP *reserve_pub,
+  const struct TALER_ReserveSignatureP *reserve_sig)
+{
+  struct TALER_ReserveHistoryRequestPS rhr = {
+    .purpose.size = htonl (sizeof (rhr)),
+    .purpose.purpose = htonl (TALER_SIGNATURE_WALLET_RESERVE_HISTORY),
+    .request_timestamp = GNUNET_TIME_timestamp_hton (ts)
+  };
+
+  TALER_amount_hton (&rhr.history_fee,
+                     history_fee);
+  return GNUNET_CRYPTO_eddsa_verify (
+    TALER_SIGNATURE_WALLET_RESERVE_WITHDRAW,
+    &rhr,
+    &reserve_sig->eddsa_signature,
+    &reserve_pub->eddsa_pub);
+}
+
+
+void
+TALER_wallet_reserve_history_sign (
+  const struct GNUNET_TIME_Timestamp ts,
+  const struct TALER_Amount *history_fee,
+  const struct TALER_ReservePrivateKeyP *reserve_priv,
+  struct TALER_ReserveSignatureP *reserve_sig)
+{
+  struct TALER_ReserveHistoryRequestPS rhr = {
+    .purpose.size = htonl (sizeof (rhr)),
+    .purpose.purpose = htonl (TALER_SIGNATURE_WALLET_RESERVE_HISTORY),
+    .request_timestamp = GNUNET_TIME_timestamp_hton (ts)
+  };
+
+  TALER_amount_hton (&rhr.history_fee,
+                     history_fee);
+  GNUNET_CRYPTO_eddsa_sign (&reserve_priv->eddsa_priv,
+                            &rhr,
+                            &reserve_sig->eddsa_signature);
+}
+
+
+enum GNUNET_GenericReturnValue
+TALER_wallet_reserve_status_verify (
+  const struct GNUNET_TIME_Timestamp ts,
+  const struct TALER_ReservePublicKeyP *reserve_pub,
+  const struct TALER_ReserveSignatureP *reserve_sig)
+{
+  struct TALER_ReserveStatusRequestPS rsr = {
+    .purpose.size = htonl (sizeof (rsr)),
+    .purpose.purpose = htonl (TALER_SIGNATURE_WALLET_RESERVE_STATUS),
+    .request_timestamp = GNUNET_TIME_timestamp_hton (ts)
+  };
+
+  return GNUNET_CRYPTO_eddsa_verify (
+    TALER_SIGNATURE_WALLET_RESERVE_STATUS,
+    &rsr,
+    &reserve_sig->eddsa_signature,
+    &reserve_pub->eddsa_pub);
+}
+
+
+void
+TALER_wallet_reserve_status_sign (
+  const struct GNUNET_TIME_Timestamp ts,
+  const struct TALER_ReservePrivateKeyP *reserve_priv,
+  struct TALER_ReserveSignatureP *reserve_sig)
+{
+  struct TALER_ReserveStatusRequestPS rsr = {
+    .purpose.size = htonl (sizeof (rsr)),
+    .purpose.purpose = htonl (TALER_SIGNATURE_WALLET_RESERVE_STATUS),
+    .request_timestamp = GNUNET_TIME_timestamp_hton (ts)
+  };
+
+  GNUNET_CRYPTO_eddsa_sign (&reserve_priv->eddsa_priv,
+                            &rsr,
+                            &reserve_sig->eddsa_signature);
+}
+
+
 /* end of wallet_signatures.c */