aboutsummaryrefslogtreecommitdiff
path: root/src/crypto/sha2.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/crypto/sha2.h')
-rw-r--r--src/crypto/sha2.h60
1 files changed, 60 insertions, 0 deletions
diff --git a/src/crypto/sha2.h b/src/crypto/sha2.h
new file mode 100644
index 0000000000..088d5e194c
--- /dev/null
+++ b/src/crypto/sha2.h
@@ -0,0 +1,60 @@
+// 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:
+ static const size_t OUTPUT_SIZE = 32;
+
+ CSHA256();
+ CSHA256& Write(const unsigned char *data, size_t len);
+ void Finalize(unsigned char hash[OUTPUT_SIZE]);
+ CSHA256& Reset();
+};
+
+/** A hasher class for SHA-512. */
+class CSHA512 {
+private:
+ uint64_t s[8];
+ unsigned char buf[128];
+ size_t bytes;
+
+public:
+ static const size_t OUTPUT_SIZE = 64;
+
+ CSHA512();
+ CSHA512& Write(const unsigned char *data, size_t len);
+ void Finalize(unsigned char hash[OUTPUT_SIZE]);
+ CSHA512& Reset();
+};
+
+/** A hasher class for HMAC-SHA-512. */
+class CHMAC_SHA512 {
+private:
+ CSHA512 outer;
+ CSHA512 inner;
+
+public:
+ static const size_t OUTPUT_SIZE = 64;
+
+ 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[OUTPUT_SIZE]);
+};
+
+#endif