From 13b5dfef64bbb77d583b2acc59e2b33f89645308 Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Mon, 28 Apr 2014 12:20:15 +0200
Subject: Move crypto implementations to src/crypto/

---
 src/crypto/sha2.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 src/crypto/sha2.h

(limited to 'src/crypto/sha2.h')

diff --git a/src/crypto/sha2.h b/src/crypto/sha2.h
new file mode 100644
index 0000000000..001bfc647c
--- /dev/null
+++ b/src/crypto/sha2.h
@@ -0,0 +1,54 @@
+// Copyright (c) 2014 The Bitcoin developers
+// Distributed under the MIT/X11 software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_SHA2_H
+#define BITCOIN_SHA2_H
+
+#include <stdint.h>
+#include <stdlib.h>
+
+/** A hasher class for SHA-256. */
+class CSHA256 {
+private:
+    uint32_t s[8];
+    unsigned char buf[64];
+    size_t bytes;
+
+public:
+    CSHA256();
+    CSHA256& Write(const unsigned char *data, size_t len);
+    void Finalize(unsigned char *hash);
+    CSHA256& Reset();
+};
+
+/** A hasher class for SHA-512. */
+class CSHA512 {
+private:
+    uint64_t s[8];
+    unsigned char buf[128];
+    size_t bytes;
+
+public:
+    CSHA512();
+    CSHA512& Write(const unsigned char *data, size_t len);
+    void Finalize(unsigned char *hash);
+    CSHA512& Reset();
+};
+
+/** A hasher class for HMAC-SHA-512. */
+class CHMAC_SHA512 {
+private:
+    CSHA512 outer;
+    CSHA512 inner;
+
+public:
+    CHMAC_SHA512(const unsigned char *key, size_t keylen);
+    CHMAC_SHA512& Write(const unsigned char *data, size_t len) {
+        inner.Write(data, len);
+        return *this;
+    }
+    void Finalize(unsigned char *hash);
+};
+
+#endif
-- 
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