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Add HMAC-SHA512 to hash

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This commit is contained in:
Pieter Wuille 2013-06-22 22:23:22 +02:00
parent ee4949794b
commit 12dff9801f
3 changed files with 176 additions and 0 deletions
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41
src/hash.cpp
View file

@ -56,3 +56,44 @@ unsigned int MurmurHash3(unsigned int nHashSeed, const std::vector<unsigned char
return h1;
}
int HMAC_SHA512_Init(HMAC_SHA512_CTX *pctx, const void *pkey, size_t len)
{
unsigned char key[128];
if (len <= 128)
{
memcpy(key, pkey, len);
memset(key + len, 0, 128-len);
}
else
{
SHA512_CTX ctxKey;
SHA512_Init(&ctxKey);
SHA512_Update(&ctxKey, pkey, len);
SHA512_Final(key, &ctxKey);
memset(key + 64, 0, 64);
}
for (int n=0; n<128; n++)
key[n] ^= 0x5c;
SHA512_Init(&pctx->ctxOuter);
SHA512_Update(&pctx->ctxOuter, key, 128);
for (int n=0; n<128; n++)
key[n] ^= 0x5c ^ 0x36;
SHA512_Init(&pctx->ctxInner);
return SHA512_Update(&pctx->ctxInner, key, 128);
}
int HMAC_SHA512_Update(HMAC_SHA512_CTX *pctx, const void *pdata, size_t len)
{
return SHA512_Update(&pctx->ctxInner, pdata, len);
}
int HMAC_SHA512_Final(unsigned char *pmd, HMAC_SHA512_CTX *pctx)
{
unsigned char buf[64];
SHA512_Final(buf, &pctx->ctxInner);
SHA512_Update(&pctx->ctxOuter, buf, 64);
return SHA512_Final(pmd, &pctx->ctxOuter);
}

10
src/hash.h
View file

@ -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

125
src/test/hmac_tests.cpp Normal file
View file

@ -0,0 +1,125 @@
#include <boost/test/unit_test.hpp>
#include "hash.h"
#include "util.h"
using namespace std;
BOOST_AUTO_TEST_SUITE(hmac_tests)
typedef struct {
const char *pszKey;
const char *pszData;
const char *pszMAC;
} testvec_t;
// test cases 1, 2, 3, 4, 6 and 7 of RFC 4231
static const testvec_t vtest[] = {
{
"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b"
"0b0b0b0b",
"4869205468657265",
"87aa7cdea5ef619d4ff0b4241a1d6cb0"
"2379f4e2ce4ec2787ad0b30545e17cde"
"daa833b7d6b8a702038b274eaea3f4e4"
"be9d914eeb61f1702e696c203a126854"
},
{
"4a656665",
"7768617420646f2079612077616e7420"
"666f72206e6f7468696e673f",
"164b7a7bfcf819e2e395fbe73b56e0a3"
"87bd64222e831fd610270cd7ea250554"
"9758bf75c05a994a6d034f65f8f0e6fd"
"caeab1a34d4a6b4b636e070a38bce737"
},
{
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaa",
"dddddddddddddddddddddddddddddddd"
"dddddddddddddddddddddddddddddddd"
"dddddddddddddddddddddddddddddddd"
"dddd",
"fa73b0089d56a284efb0f0756c890be9"
"b1b5dbdd8ee81a3655f83e33b2279d39"
"bf3e848279a722c806b485a47e67c807"
"b946a337bee8942674278859e13292fb"
},
{
"0102030405060708090a0b0c0d0e0f10"
"111213141516171819",
"cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd"
"cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd"
"cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd"
"cdcd",
"b0ba465637458c6990e5a8c5f61d4af7"
"e576d97ff94b872de76f8050361ee3db"
"a91ca5c11aa25eb4d679275cc5788063"
"a5f19741120c4f2de2adebeb10a298dd"
},
{
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaa",
"54657374205573696e67204c61726765"
"72205468616e20426c6f636b2d53697a"
"65204b6579202d2048617368204b6579"
"204669727374",
"80b24263c7c1a3ebb71493c1dd7be8b4"
"9b46d1f41b4aeec1121b013783f8f352"
"6b56d037e05f2598bd0fd2215d6a1e52"
"95e64f73f63f0aec8b915a985d786598"
},
{
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaa",
"54686973206973206120746573742075"
"73696e672061206c6172676572207468"
"616e20626c6f636b2d73697a65206b65"
"7920616e642061206c61726765722074"
"68616e20626c6f636b2d73697a652064"
"6174612e20546865206b6579206e6565"
"647320746f2062652068617368656420"
"6265666f7265206265696e6720757365"
"642062792074686520484d414320616c"
"676f726974686d2e",
"e37b6a775dc87dbaa4dfa9f96e5e3ffd"
"debd71f8867289865df5a32d20cdc944"
"b6022cac3c4982b10d5eeb55c3e4de15"
"134676fb6de0446065c97440fa8c6a58"
}
};
BOOST_AUTO_TEST_CASE(hmacsha512_testvectors)
{
for (unsigned int n=0; n<sizeof(vtest)/sizeof(vtest[0]); n++)
{
vector<unsigned char> vchKey = ParseHex(vtest[n].pszKey);
vector<unsigned char> vchData = ParseHex(vtest[n].pszData);
vector<unsigned char> vchMAC = ParseHex(vtest[n].pszMAC);
unsigned char vchTemp[64];
HMAC_SHA512_CTX ctx;
HMAC_SHA512_Init(&ctx, &vchKey[0], vchKey.size());
HMAC_SHA512_Update(&ctx, &vchData[0], vchData.size());
HMAC_SHA512_Final(&vchTemp[0], &ctx);
BOOST_CHECK(memcmp(&vchTemp[0], &vchMAC[0], 64) == 0);
}
}
BOOST_AUTO_TEST_SUITE_END()