Mercurial > dropbear
view libtomcrypt/src/hashes/sha2/sha224.c @ 1617:1fbe598a14fb
Merge bugfix delay invalid users
author | Matt Johnston <matt@ucc.asn.au> |
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date | Thu, 23 Aug 2018 23:43:45 +0800 |
parents | 6dba84798cd5 |
children |
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. */ /** @param sha224.c LTC_SHA-224 new NIST standard based off of LTC_SHA-256 truncated to 224 bits (Tom St Denis) */ #include "tomcrypt.h" #if defined(LTC_SHA224) && defined(LTC_SHA256) const struct ltc_hash_descriptor sha224_desc = { "sha224", 10, 28, 64, /* OID */ { 2, 16, 840, 1, 101, 3, 4, 2, 4, }, 9, &sha224_init, &sha256_process, &sha224_done, &sha224_test, NULL }; /* init the sha256 er... sha224 state ;-) */ /** Initialize the hash state @param md The hash state you wish to initialize @return CRYPT_OK if successful */ int sha224_init(hash_state * md) { LTC_ARGCHK(md != NULL); md->sha256.curlen = 0; md->sha256.length = 0; md->sha256.state[0] = 0xc1059ed8UL; md->sha256.state[1] = 0x367cd507UL; md->sha256.state[2] = 0x3070dd17UL; md->sha256.state[3] = 0xf70e5939UL; md->sha256.state[4] = 0xffc00b31UL; md->sha256.state[5] = 0x68581511UL; md->sha256.state[6] = 0x64f98fa7UL; md->sha256.state[7] = 0xbefa4fa4UL; return CRYPT_OK; } /** Terminate the hash to get the digest @param md The hash state @param out [out] The destination of the hash (28 bytes) @return CRYPT_OK if successful */ int sha224_done(hash_state * md, unsigned char *out) { unsigned char buf[32]; int err; LTC_ARGCHK(md != NULL); LTC_ARGCHK(out != NULL); err = sha256_done(md, buf); XMEMCPY(out, buf, 28); #ifdef LTC_CLEAN_STACK zeromem(buf, sizeof(buf)); #endif return err; } /** Self-test the hash @return CRYPT_OK if successful, CRYPT_NOP if self-tests have been disabled */ int sha224_test(void) { #ifndef LTC_TEST return CRYPT_NOP; #else static const struct { const char *msg; unsigned char hash[28]; } tests[] = { { "abc", { 0x23, 0x09, 0x7d, 0x22, 0x34, 0x05, 0xd8, 0x22, 0x86, 0x42, 0xa4, 0x77, 0xbd, 0xa2, 0x55, 0xb3, 0x2a, 0xad, 0xbc, 0xe4, 0xbd, 0xa0, 0xb3, 0xf7, 0xe3, 0x6c, 0x9d, 0xa7 } }, { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", { 0x75, 0x38, 0x8b, 0x16, 0x51, 0x27, 0x76, 0xcc, 0x5d, 0xba, 0x5d, 0xa1, 0xfd, 0x89, 0x01, 0x50, 0xb0, 0xc6, 0x45, 0x5c, 0xb4, 0xf5, 0x8b, 0x19, 0x52, 0x52, 0x25, 0x25 } }, }; int i; unsigned char tmp[28]; hash_state md; for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) { sha224_init(&md); sha224_process(&md, (unsigned char*)tests[i].msg, (unsigned long)strlen(tests[i].msg)); sha224_done(&md, tmp); if (compare_testvector(tmp, sizeof(tmp), tests[i].hash, sizeof(tests[i].hash), "SHA224", i)) { return CRYPT_FAIL_TESTVECTOR; } } return CRYPT_OK; #endif } #endif /* defined(LTC_SHA224) && defined(LTC_SHA256) */ /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */