From 12dff9801f92d37c330ccf4776da36a3910abec4 Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Sat, 22 Jun 2013 22:23:22 +0200
Subject: Add HMAC-SHA512 to hash

---
 src/hash.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/hash.h')

diff --git a/src/hash.h b/src/hash.h
index 536ab71165..880468a2d2 100644
--- a/src/hash.h
+++ b/src/hash.h
@@ -123,4 +123,14 @@ inline uint160 Hash160(const std::vector<unsigned char>& vch)
 
 unsigned int MurmurHash3(unsigned int nHashSeed, const std::vector<unsigned char>& vDataToHash);
 
+typedef struct
+{
+    SHA512_CTX ctxInner;
+    SHA512_CTX ctxOuter;
+} HMAC_SHA512_CTX;
+
+int HMAC_SHA512_Init(HMAC_SHA512_CTX *pctx, const void *pkey, size_t len);
+int HMAC_SHA512_Update(HMAC_SHA512_CTX *pctx, const void *pdata, size_t len);
+int HMAC_SHA512_Final(unsigned char *pmd, HMAC_SHA512_CTX *pctx);
+
 #endif
-- 
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