exchange

commit 85122e899a895e5327f8e37ac0811a9ad87168b4
parent 391975361814e6d24e674feeea1b92d1f6388eb7
Author: Christian Grothoff <grothoff@gnunet.org>
Date:   Sun, 16 Aug 2026 08:58:47 +0200

log more

Diffstat:
M
src/include/taler/taler_crypto_lib.h
 | 
6
++++--
M
src/util/denom.c
 | 
6
++++++

2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/src/include/taler/taler_crypto_lib.h b/src/include/taler/taler_crypto_lib.h
@@ -2105,10 +2105,12 @@ TALER_denom_sig_free (struct TALER_DenominationSignature *denom_sig);
  *        could be NULL for ciphers that do not use it
  * @param age_commitment_hash hash of the age commitment to be used for the coin. NULL if no commitment is made.
  * @param coin_pub public key of the coin to blind
- * @param alg_values algorithm specific values to blind the planchet
+ * @param alg_values algorithm specific values to blind the planchet,
+ *        must be for the same cipher as @a dk
  * @param[out] c_hash resulting hashed coin
  * @param[out] blinded_planchet planchet data to initialize
- * @return #GNUNET_OK on success
+ * @return #GNUNET_OK on success,
+ *         #GNUNET_SYSERR if @a alg_values do not match the cipher of @a dk
  */
 enum GNUNET_GenericReturnValue
 TALER_denom_blind (const struct TALER_DenominationPublicKey *dk,
diff --git a/src/util/denom.c b/src/util/denom.c
@@ -59,7 +59,10 @@ TALER_denom_sign_blinded (struct TALER_BlindedDenominationSignature *denom_sig,
                                 for_melt ? "rm" : "rw",
                                 blinded_planchet->blinded_message);
   if (NULL == denom_sig->blinded_sig)
+  {
+    GNUNET_break (0);
     return GNUNET_SYSERR;
+  }
   return GNUNET_OK;
 }
 
@@ -169,7 +172,10 @@ TALER_denom_blind (
                                            sizeof (*c_hash),
                                            alg_values->blinding_inputs);
   if (NULL == blinded_planchet->blinded_message)
+  {
+    GNUNET_break_op (0);
     return GNUNET_SYSERR;
+  }
   return GNUNET_OK;
 }