From 0290c5fd379a4b4262d8835d4131b7c4e8a2f2f2 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian@dold.me>
Date: Mon, 7 Mar 2022 12:09:38 +0100
Subject: address protocol changes in the exchange

The exchange now has a wad fee and truncates the payto hash in signatures
---
 packages/taler-wallet-core/src/crypto/workers/cryptoImplementation.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'packages/taler-wallet-core/src/crypto')

diff --git a/packages/taler-wallet-core/src/crypto/workers/cryptoImplementation.ts b/packages/taler-wallet-core/src/crypto/workers/cryptoImplementation.ts
index bd18e8d2e..f9cc63ecc 100644
--- a/packages/taler-wallet-core/src/crypto/workers/cryptoImplementation.ts
+++ b/packages/taler-wallet-core/src/crypto/workers/cryptoImplementation.ts
@@ -48,6 +48,7 @@ import {
   hashCoinEv,
   hashCoinEvInner,
   hashDenomPub,
+  hashTruncate32,
   keyExchangeEcdheEddsa,
   Logger,
   MakeSyncSignatureRequest,
@@ -329,6 +330,7 @@ export class CryptoImplementation {
       .put(timestampRoundedToBuffer(wf.endStamp))
       .put(amountToBuffer(wf.wireFee))
       .put(amountToBuffer(wf.closingFee))
+      .put(amountToBuffer(wf.wadFee))
       .build();
     const sig = decodeCrock(wf.sig);
     const pub = decodeCrock(masterPub);
@@ -376,7 +378,7 @@ export class CryptoImplementation {
     sig: string,
     masterPub: string,
   ): boolean {
-    const paytoHash = hash(stringToBytes(paytoUri + "\0"));
+    const paytoHash = hashTruncate32(stringToBytes(paytoUri + "\0"));
     const p = buildSigPS(TalerSignaturePurpose.MASTER_WIRE_DETAILS)
       .put(paytoHash)
       .build();
-- 
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