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148 lines
3.8 KiB
148 lines
3.8 KiB
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*
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* Tom St Denis, tomstdenis@gmail.com, http://libtom.org
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*/
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/**
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@param sha384.c
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LTC_SHA384 hash included in sha512.c, Tom St Denis
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*/
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#include "tomcrypt.h"
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const struct ltc_hash_descriptor sha384_desc =
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{
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"sha384",
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4,
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48,
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128,
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/* OID */
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{ 2, 16, 840, 1, 101, 3, 4, 2, 2, },
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9,
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&sha384_init,
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&sha512_process,
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&sha384_done,
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&sha384_test,
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NULL
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};
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/**
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Initialize the hash state
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@param md The hash state you wish to initialize
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@return CRYPT_OK if successful
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*/
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int sha384_init(hash_state * md)
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{
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LTC_ARGCHK(md != NULL);
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md->sha512.curlen = 0;
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md->sha512.length = 0;
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md->sha512.state[0] = CONST64(0xcbbb9d5dc1059ed8);
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md->sha512.state[1] = CONST64(0x629a292a367cd507);
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md->sha512.state[2] = CONST64(0x9159015a3070dd17);
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md->sha512.state[3] = CONST64(0x152fecd8f70e5939);
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md->sha512.state[4] = CONST64(0x67332667ffc00b31);
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md->sha512.state[5] = CONST64(0x8eb44a8768581511);
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md->sha512.state[6] = CONST64(0xdb0c2e0d64f98fa7);
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md->sha512.state[7] = CONST64(0x47b5481dbefa4fa4);
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return CRYPT_OK;
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}
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/**
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Terminate the hash to get the digest
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@param md The hash state
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@param out [out] The destination of the hash (48 bytes)
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@return CRYPT_OK if successful
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*/
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int sha384_done(hash_state * md, unsigned char *out)
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{
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unsigned char buf[64];
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LTC_ARGCHK(md != NULL);
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LTC_ARGCHK(out != NULL);
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if (md->sha512.curlen >= sizeof(md->sha512.buf)) {
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return CRYPT_INVALID_ARG;
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}
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sha512_done(md, buf);
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XMEMCPY(out, buf, 48);
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#ifdef LTC_CLEAN_STACK
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zeromem(buf, sizeof(buf));
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#endif
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return CRYPT_OK;
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}
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void calc_sha384(char *str,uint8_t *digest,uint8_t *message,int32_t len)
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{
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int init_hexbytes_noT(char *hexbytes,unsigned char *message,long len);
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hash_state md;
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sha384_init(&md);
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sha384_process(&md,message,len);
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sha384_done(&md,digest);
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if ( str != 0 )
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init_hexbytes_noT(str,digest,48);
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}
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/**
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Self-test the hash
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@return CRYPT_OK if successful, CRYPT_NOP if self-tests have been disabled
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*/
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int sha384_test(void)
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{
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#ifndef LTC_TEST
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return CRYPT_NOP;
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#else
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static const struct {
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char *msg;
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unsigned char hash[48];
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} tests[] = {
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{ "abc",
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{ 0xcb, 0x00, 0x75, 0x3f, 0x45, 0xa3, 0x5e, 0x8b,
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0xb5, 0xa0, 0x3d, 0x69, 0x9a, 0xc6, 0x50, 0x07,
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0x27, 0x2c, 0x32, 0xab, 0x0e, 0xde, 0xd1, 0x63,
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0x1a, 0x8b, 0x60, 0x5a, 0x43, 0xff, 0x5b, 0xed,
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0x80, 0x86, 0x07, 0x2b, 0xa1, 0xe7, 0xcc, 0x23,
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0x58, 0xba, 0xec, 0xa1, 0x34, 0xc8, 0x25, 0xa7 }
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},
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{ "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
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{ 0x09, 0x33, 0x0c, 0x33, 0xf7, 0x11, 0x47, 0xe8,
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0x3d, 0x19, 0x2f, 0xc7, 0x82, 0xcd, 0x1b, 0x47,
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0x53, 0x11, 0x1b, 0x17, 0x3b, 0x3b, 0x05, 0xd2,
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0x2f, 0xa0, 0x80, 0x86, 0xe3, 0xb0, 0xf7, 0x12,
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0xfc, 0xc7, 0xc7, 0x1a, 0x55, 0x7e, 0x2d, 0xb9,
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0x66, 0xc3, 0xe9, 0xfa, 0x91, 0x74, 0x60, 0x39 }
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},
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};
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int i;
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unsigned char tmp[48];
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hash_state md;
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for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) {
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sha384_init(&md);
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sha384_process(&md, (unsigned char*)tests[i].msg, (unsigned long)strlen(tests[i].msg));
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sha384_done(&md, tmp);
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if (XMEMCMP(tmp, tests[i].hash, 48) != 0) {
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return CRYPT_FAIL_TESTVECTOR;
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}
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}
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return CRYPT_OK;
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#endif
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}
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/* $Source: /cvs/libtom/libtomcrypt/src/hashes/sha2/sha384.c,v $ */
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/* $Revision: 1.10 $ */
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/* $Date: 2007/05/12 14:25:28 $ */
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