| // SPDX-License-Identifier: BSD-2-Clause |
| /* 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 sha512_224.c |
| SHA512/224 hash included in sha512.c |
| */ |
| |
| #include "tomcrypt_private.h" |
| |
| #if defined(LTC_SHA512_224) && defined(LTC_SHA512) |
| |
| const struct ltc_hash_descriptor sha512_224_desc = |
| { |
| "sha512-224", |
| 15, |
| 28, |
| 128, |
| |
| /* OID */ |
| { 2, 16, 840, 1, 101, 3, 4, 2, 5, }, |
| 9, |
| |
| &sha512_224_init, |
| &sha512_process, |
| &sha512_224_done, |
| &sha512_224_test, |
| NULL |
| }; |
| |
| /** |
| Initialize the hash state |
| @param md The hash state you wish to initialize |
| @return CRYPT_OK if successful |
| */ |
| int sha512_224_init(hash_state * md) |
| { |
| LTC_ARGCHK(md != NULL); |
| |
| md->sha512.curlen = 0; |
| md->sha512.length = 0; |
| md->sha512.state[0] = CONST64(0x8C3D37C819544DA2); |
| md->sha512.state[1] = CONST64(0x73E1996689DCD4D6); |
| md->sha512.state[2] = CONST64(0x1DFAB7AE32FF9C82); |
| md->sha512.state[3] = CONST64(0x679DD514582F9FCF); |
| md->sha512.state[4] = CONST64(0x0F6D2B697BD44DA8); |
| md->sha512.state[5] = CONST64(0x77E36F7304C48942); |
| md->sha512.state[6] = CONST64(0x3F9D85A86A1D36C8); |
| md->sha512.state[7] = CONST64(0x1112E6AD91D692A1); |
| return CRYPT_OK; |
| } |
| |
| /** |
| Terminate the hash to get the digest |
| @param md The hash state |
| @param out [out] The destination of the hash (48 bytes) |
| @return CRYPT_OK if successful |
| */ |
| int sha512_224_done(hash_state * md, unsigned char *out) |
| { |
| unsigned char buf[64]; |
| |
| LTC_ARGCHK(md != NULL); |
| LTC_ARGCHK(out != NULL); |
| |
| if (md->sha512.curlen >= sizeof(md->sha512.buf)) { |
| return CRYPT_INVALID_ARG; |
| } |
| |
| sha512_done(md, buf); |
| XMEMCPY(out, buf, 28); |
| #ifdef LTC_CLEAN_STACK |
| zeromem(buf, sizeof(buf)); |
| #endif |
| return CRYPT_OK; |
| } |
| |
| /** |
| Self-test the hash |
| @return CRYPT_OK if successful, CRYPT_NOP if self-tests have been disabled |
| */ |
| int sha512_224_test(void) |
| { |
| #ifndef LTC_TEST |
| return CRYPT_NOP; |
| #else |
| static const struct { |
| const char *msg; |
| unsigned char hash[28]; |
| } tests[] = { |
| { "abc", |
| { 0x46, 0x34, 0x27, 0x0F, 0x70, 0x7B, 0x6A, 0x54, |
| 0xDA, 0xAE, 0x75, 0x30, 0x46, 0x08, 0x42, 0xE2, |
| 0x0E, 0x37, 0xED, 0x26, 0x5C, 0xEE, 0xE9, 0xA4, |
| 0x3E, 0x89, 0x24, 0xAA } |
| }, |
| { "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu", |
| { 0x23, 0xFE, 0xC5, 0xBB, 0x94, 0xD6, 0x0B, 0x23, |
| 0x30, 0x81, 0x92, 0x64, 0x0B, 0x0C, 0x45, 0x33, |
| 0x35, 0xD6, 0x64, 0x73, 0x4F, 0xE4, 0x0E, 0x72, |
| 0x68, 0x67, 0x4A, 0xF9 } |
| }, |
| }; |
| |
| int i; |
| unsigned char tmp[28]; |
| hash_state md; |
| |
| for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) { |
| sha512_224_init(&md); |
| sha512_224_process(&md, (unsigned char*)tests[i].msg, (unsigned long)strlen(tests[i].msg)); |
| sha512_224_done(&md, tmp); |
| if (compare_testvector(tmp, sizeof(tmp), tests[i].hash, sizeof(tests[i].hash), "SHA512-224", i)) { |
| return CRYPT_FAIL_TESTVECTOR; |
| } |
| } |
| return CRYPT_OK; |
| #endif |
| } |
| |
| #endif /* defined(LTC_SHA384) && defined(LTC_SHA512) */ |
| |
| /* ref: $Format:%D$ */ |
| /* git commit: $Format:%H$ */ |
| /* commit time: $Format:%ai$ */ |