From 332745862e728dc5e79a424698b2736c4f2683bf Mon Sep 17 00:00:00 2001
From: Florian Dold <florian@dold.me>
Date: Mon, 14 Mar 2022 18:31:30 +0100
Subject: wallet: towards db-less benchmarking, some refactoring

---
 packages/taler-util/src/talerCrypto.ts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'packages/taler-util/src/talerCrypto.ts')

diff --git a/packages/taler-util/src/talerCrypto.ts b/packages/taler-util/src/talerCrypto.ts
index 358da9dac..4d6e73671 100644
--- a/packages/taler-util/src/talerCrypto.ts
+++ b/packages/taler-util/src/talerCrypto.ts
@@ -785,6 +785,22 @@ export function setupRefreshTransferPub(
   };
 }
 
+/**
+ * 
+ * @param paytoUri
+ * @param salt 16-byte salt 
+ * @returns 
+ */
+export function hashWire(paytoUri: string, salt: string): string {
+  const r = kdf(
+    64,
+    stringToBytes(paytoUri + "\0"),
+    decodeCrock(salt),
+    stringToBytes("merchant-wire-signature"),
+  );
+  return encodeCrock(r);
+}
+
 export enum TalerSignaturePurpose {
   MERCHANT_TRACK_TRANSACTION = 1103,
   WALLET_RESERVE_WITHDRAW = 1200,
-- 
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