1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2013 The Bitcoin developers
3 // Distributed under the MIT/X11 software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
15 #include <openssl/ripemd.h>
16 #include <openssl/sha.h>
19 inline uint256 Hash(const T1 pbegin, const T1 pend)
21 static unsigned char pblank[1];
23 SHA256((pbegin == pend ? pblank : (unsigned char*)&pbegin[0]), (pend - pbegin) * sizeof(pbegin[0]), (unsigned char*)&hash1);
25 SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
42 CHashWriter(int nTypeIn, int nVersionIn) : nType(nTypeIn), nVersion(nVersionIn) {
46 CHashWriter& write(const char *pch, size_t size) {
47 SHA256_Update(&ctx, pch, size);
51 // invalidates the object
54 SHA256_Final((unsigned char*)&hash1, &ctx);
56 SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
61 CHashWriter& operator<<(const T& obj) {
62 // Serialize to this stream
63 ::Serialize(*this, obj, nType, nVersion);
69 template<typename T1, typename T2>
70 inline uint256 Hash(const T1 p1begin, const T1 p1end,
71 const T2 p2begin, const T2 p2end)
73 static unsigned char pblank[1];
77 SHA256_Update(&ctx, (p1begin == p1end ? pblank : (unsigned char*)&p1begin[0]), (p1end - p1begin) * sizeof(p1begin[0]));
78 SHA256_Update(&ctx, (p2begin == p2end ? pblank : (unsigned char*)&p2begin[0]), (p2end - p2begin) * sizeof(p2begin[0]));
79 SHA256_Final((unsigned char*)&hash1, &ctx);
81 SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
85 template<typename T1, typename T2, typename T3>
86 inline uint256 Hash(const T1 p1begin, const T1 p1end,
87 const T2 p2begin, const T2 p2end,
88 const T3 p3begin, const T3 p3end)
90 static unsigned char pblank[1];
94 SHA256_Update(&ctx, (p1begin == p1end ? pblank : (unsigned char*)&p1begin[0]), (p1end - p1begin) * sizeof(p1begin[0]));
95 SHA256_Update(&ctx, (p2begin == p2end ? pblank : (unsigned char*)&p2begin[0]), (p2end - p2begin) * sizeof(p2begin[0]));
96 SHA256_Update(&ctx, (p3begin == p3end ? pblank : (unsigned char*)&p3begin[0]), (p3end - p3begin) * sizeof(p3begin[0]));
97 SHA256_Final((unsigned char*)&hash1, &ctx);
99 SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
104 uint256 SerializeHash(const T& obj, int nType=SER_GETHASH, int nVersion=PROTOCOL_VERSION)
106 CHashWriter ss(nType, nVersion);
111 template<typename T1>
112 inline uint160 Hash160(const T1 pbegin, const T1 pend)
114 static unsigned char pblank[1];
116 SHA256((pbegin == pend ? pblank : (unsigned char*)&pbegin[0]), (pend - pbegin) * sizeof(pbegin[0]), (unsigned char*)&hash1);
118 RIPEMD160((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
122 inline uint160 Hash160(const std::vector<unsigned char>& vch)
124 return Hash160(vch.begin(), vch.end());
127 unsigned int MurmurHash3(unsigned int nHashSeed, const std::vector<unsigned char>& vDataToHash);
135 int HMAC_SHA512_Init(HMAC_SHA512_CTX *pctx, const void *pkey, size_t len);
136 int HMAC_SHA512_Update(HMAC_SHA512_CTX *pctx, const void *pdata, size_t len);
137 int HMAC_SHA512_Final(unsigned char *pmd, HMAC_SHA512_CTX *pctx);