From 36f551ff33ac0974788aff28d4b19390ca484f4b Mon Sep 17 00:00:00 2001
From: Lucien Heuzeveldt <lucienclaude.heuzeveldt@students.bfh.ch>
Date: Tue, 4 Jan 2022 17:46:36 +0100
Subject: set planchet detail cipher, add cipher checks

---
 src/util/crypto.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/util/crypto.c')

diff --git a/src/util/crypto.c b/src/util/crypto.c
index 84d20d6b..445b820a 100644
--- a/src/util/crypto.c
+++ b/src/util/crypto.c
@@ -319,6 +319,7 @@ TALER_planchet_prepare (const struct TALER_DenominationPublicKey *dk,
     return GNUNET_SYSERR;
   }
 
+  pd->blinded_planchet.cipher = dk->cipher;
   TALER_denom_pub_hash (dk,
                         &pd->denom_pub_hash);
   return GNUNET_OK;
@@ -335,6 +336,12 @@ TALER_planchet_to_coin (const struct TALER_DenominationPublicKey *dk,
 {
   struct TALER_DenominationSignature sig;
 
+  if (dk->cipher != blind_sig->cipher)
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+
   switch (dk->cipher)
   {
   case TALER_DENOMINATION_RSA:
-- 
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