From 2d84d7f6ddce69b5c1d4d44a16a9aa0663fd4eba Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Sat, 7 May 2022 23:27:56 +0200
Subject: add function for purse status signing

---
 src/include/taler_crypto_lib.h | 19 +++++++++++++++++++
 src/include/taler_signatures.h |  8 +++++++-
 2 files changed, 26 insertions(+), 1 deletion(-)

(limited to 'src/include')

diff --git a/src/include/taler_crypto_lib.h b/src/include/taler_crypto_lib.h
index 1ee080abc..cf160c689 100644
--- a/src/include/taler_crypto_lib.h
+++ b/src/include/taler_crypto_lib.h
@@ -3976,6 +3976,25 @@ TALER_exchange_online_purse_merged_verify (
   const struct TALER_ExchangeSignatureP *sig);
 
 
+enum TALER_ErrorCode
+TALER_exchange_purse_status_sign (
+  TALER_ExchangeSignCallback scb,
+  struct GNUNET_TIME_Timestamp merge_timestamp,
+  struct GNUNET_TIME_Timestamp deposit_timestamp,
+  const struct TALER_Amount *balance,
+  struct TALER_ExchangePublicKeyP *pub,
+  struct TALER_ExchangeSignatureP *sig);
+
+
+enum GNUNET_GenericReturnValue
+TALER_exchange_purse_status_verify (
+  struct GNUNET_TIME_Timestamp merge_timestamp,
+  struct GNUNET_TIME_Timestamp deposit_timestamp,
+  const struct TALER_Amount *balance,
+  const struct TALER_ExchangePublicKeyP *exchange_pub,
+  const struct TALER_ExchangeSignatureP *exchange_sig);
+
+
 /* ********************* offline signing ************************** */
 
 
diff --git a/src/include/taler_signatures.h b/src/include/taler_signatures.h
index 9897082d8..57c84b50b 100644
--- a/src/include/taler_signatures.h
+++ b/src/include/taler_signatures.h
@@ -189,6 +189,13 @@
  */
 #define TALER_SIGNATURE_EXCHANGE_CONFIRM_PURSE_MERGED 1046
 
+/**
+ * Purpose for the state of a purse, signed by the exchange's signing
+ * key.
+ */
+#define TALER_SIGNATURE_EXCHANGE_PURSE_STATUS 1047
+
+
 /**********************/
 /* Auditor signatures */
 /**********************/
@@ -383,5 +390,4 @@
 #define TALER_SIGNATURE_SYNC_BACKUP_UPLOAD 1450
 
 
-
 #endif
-- 
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