From d8922f82e5f6853c35a8a282e51471da908bdacf Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Sat, 9 Oct 2021 16:11:04 +0200
Subject: -introduce 'struct TALER_WireSalt'

---
 src/include/taler_crypto_lib.h | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

(limited to 'src/include/taler_crypto_lib.h')

diff --git a/src/include/taler_crypto_lib.h b/src/include/taler_crypto_lib.h
index 71579170a..0284fc55b 100644
--- a/src/include/taler_crypto_lib.h
+++ b/src/include/taler_crypto_lib.h
@@ -359,6 +359,20 @@ struct TALER_ClaimTokenP
 };
 
 
+/**
+ * Salt used to hash a merchant's payto:// URI to
+ * compute the "h_wire" (say for deposit requests).
+ */
+struct TALER_WireSalt
+{
+  /**
+   * Actual salt value.
+   * FIXME: #7032: change to 16 byte value!
+   */
+  struct GNUNET_HashCode data;
+};
+
+
 GNUNET_NETWORK_STRUCT_END
 
 
@@ -1658,7 +1672,7 @@ TALER_exchange_wire_signature_make (
  */
 void
 TALER_merchant_wire_signature_hash (const char *payto_uri,
-                                    const char *salt,
+                                    const struct TALER_WireSalt *salt,
                                     struct GNUNET_HashCode *hc);
 
 
@@ -1674,7 +1688,7 @@ TALER_merchant_wire_signature_hash (const char *payto_uri,
 enum GNUNET_GenericReturnValue
 TALER_merchant_wire_signature_check (
   const char *payto_uri,
-  const char *salt,
+  const struct TALER_WireSalt *salt,
   const struct TALER_MerchantPublicKeyP *merch_pub,
   const struct TALER_MerchantSignatureP *merch_sig);
 
@@ -1690,7 +1704,7 @@ TALER_merchant_wire_signature_check (
 void
 TALER_merchant_wire_signature_make (
   const char *payto_uri,
-  const char *salt,
+  const struct TALER_WireSalt *salt,
   const struct TALER_MerchantPrivateKeyP *merch_priv,
   struct TALER_MerchantSignatureP *merch_sig);
 
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