| /* 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. |
| * |
| * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com |
| */ |
| #include "tomcrypt.h" |
| |
| /** |
| @param sha512.c |
| SHA512 by Tom St Denis |
| */ |
| |
| #ifdef SHA512 |
| |
| const struct ltc_hash_descriptor sha512_desc = |
| { |
| "sha512", |
| 5, |
| 64, |
| 128, |
| |
| /* OID */ |
| { 2, 16, 840, 1, 101, 3, 4, 2, 3, }, |
| 9, |
| |
| &sha512_init, |
| &sha512_process, |
| &sha512_done, |
| &sha512_test, |
| NULL |
| }; |
| |
| /* the K array */ |
| static const ulong64 K[80] = { |
| CONST64(0x428a2f98d728ae22), CONST64(0x7137449123ef65cd), |
| CONST64(0xb5c0fbcfec4d3b2f), CONST64(0xe9b5dba58189dbbc), |
| CONST64(0x3956c25bf348b538), CONST64(0x59f111f1b605d019), |
| CONST64(0x923f82a4af194f9b), CONST64(0xab1c5ed5da6d8118), |
| CONST64(0xd807aa98a3030242), CONST64(0x12835b0145706fbe), |
| CONST64(0x243185be4ee4b28c), CONST64(0x550c7dc3d5ffb4e2), |
| CONST64(0x72be5d74f27b896f), CONST64(0x80deb1fe3b1696b1), |
| CONST64(0x9bdc06a725c71235), CONST64(0xc19bf174cf692694), |
| CONST64(0xe49b69c19ef14ad2), CONST64(0xefbe4786384f25e3), |
| CONST64(0x0fc19dc68b8cd5b5), CONST64(0x240ca1cc77ac9c65), |
| CONST64(0x2de92c6f592b0275), CONST64(0x4a7484aa6ea6e483), |
| CONST64(0x5cb0a9dcbd41fbd4), CONST64(0x76f988da831153b5), |
| CONST64(0x983e5152ee66dfab), CONST64(0xa831c66d2db43210), |
| CONST64(0xb00327c898fb213f), CONST64(0xbf597fc7beef0ee4), |
| CONST64(0xc6e00bf33da88fc2), CONST64(0xd5a79147930aa725), |
| CONST64(0x06ca6351e003826f), CONST64(0x142929670a0e6e70), |
| CONST64(0x27b70a8546d22ffc), CONST64(0x2e1b21385c26c926), |
| CONST64(0x4d2c6dfc5ac42aed), CONST64(0x53380d139d95b3df), |
| CONST64(0x650a73548baf63de), CONST64(0x766a0abb3c77b2a8), |
| CONST64(0x81c2c92e47edaee6), CONST64(0x92722c851482353b), |
| CONST64(0xa2bfe8a14cf10364), CONST64(0xa81a664bbc423001), |
| CONST64(0xc24b8b70d0f89791), CONST64(0xc76c51a30654be30), |
| CONST64(0xd192e819d6ef5218), CONST64(0xd69906245565a910), |
| CONST64(0xf40e35855771202a), CONST64(0x106aa07032bbd1b8), |
| CONST64(0x19a4c116b8d2d0c8), CONST64(0x1e376c085141ab53), |
| CONST64(0x2748774cdf8eeb99), CONST64(0x34b0bcb5e19b48a8), |
| CONST64(0x391c0cb3c5c95a63), CONST64(0x4ed8aa4ae3418acb), |
| CONST64(0x5b9cca4f7763e373), CONST64(0x682e6ff3d6b2b8a3), |
| CONST64(0x748f82ee5defb2fc), CONST64(0x78a5636f43172f60), |
| CONST64(0x84c87814a1f0ab72), CONST64(0x8cc702081a6439ec), |
| CONST64(0x90befffa23631e28), CONST64(0xa4506cebde82bde9), |
| CONST64(0xbef9a3f7b2c67915), CONST64(0xc67178f2e372532b), |
| CONST64(0xca273eceea26619c), CONST64(0xd186b8c721c0c207), |
| CONST64(0xeada7dd6cde0eb1e), CONST64(0xf57d4f7fee6ed178), |
| CONST64(0x06f067aa72176fba), CONST64(0x0a637dc5a2c898a6), |
| CONST64(0x113f9804bef90dae), CONST64(0x1b710b35131c471b), |
| CONST64(0x28db77f523047d84), CONST64(0x32caab7b40c72493), |
| CONST64(0x3c9ebe0a15c9bebc), CONST64(0x431d67c49c100d4c), |
| CONST64(0x4cc5d4becb3e42b6), CONST64(0x597f299cfc657e2a), |
| CONST64(0x5fcb6fab3ad6faec), CONST64(0x6c44198c4a475817) |
| }; |
| |
| /* Various logical functions */ |
| #define Ch(x,y,z) (z ^ (x & (y ^ z))) |
| #define Maj(x,y,z) (((x | y) & z) | (x & y)) |
| #define S(x, n) ROR64c(x, n) |
| #define R(x, n) (((x)&CONST64(0xFFFFFFFFFFFFFFFF))>>((ulong64)n)) |
| #define Sigma0(x) (S(x, 28) ^ S(x, 34) ^ S(x, 39)) |
| #define Sigma1(x) (S(x, 14) ^ S(x, 18) ^ S(x, 41)) |
| #define Gamma0(x) (S(x, 1) ^ S(x, 8) ^ R(x, 7)) |
| #define Gamma1(x) (S(x, 19) ^ S(x, 61) ^ R(x, 6)) |
| |
| /* compress 1024-bits */ |
| #ifdef LTC_CLEAN_STACK |
| static int _sha512_compress(hash_state * md, unsigned char *buf) |
| #else |
| static int sha512_compress(hash_state * md, unsigned char *buf) |
| #endif |
| { |
| ulong64 S[8], W[80], t0, t1; |
| int i; |
| |
| /* copy state into S */ |
| for (i = 0; i < 8; i++) { |
| S[i] = md->sha512.state[i]; |
| } |
| |
| /* copy the state into 1024-bits into W[0..15] */ |
| for (i = 0; i < 16; i++) { |
| LOAD64H(W[i], buf + (8*i)); |
| } |
| |
| /* fill W[16..79] */ |
| for (i = 16; i < 80; i++) { |
| W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16]; |
| } |
| |
| /* Compress */ |
| #ifdef LTC_SMALL_CODE |
| for (i = 0; i < 80; i++) { |
| t0 = S[7] + Sigma1(S[4]) + Ch(S[4], S[5], S[6]) + K[i] + W[i]; |
| t1 = Sigma0(S[0]) + Maj(S[0], S[1], S[2]); |
| S[7] = S[6]; |
| S[6] = S[5]; |
| S[5] = S[4]; |
| S[4] = S[3] + t0; |
| S[3] = S[2]; |
| S[2] = S[1]; |
| S[1] = S[0]; |
| S[0] = t0 + t1; |
| } |
| #else |
| #define RND(a,b,c,d,e,f,g,h,i) \ |
| t0 = h + Sigma1(e) + Ch(e, f, g) + K[i] + W[i]; \ |
| t1 = Sigma0(a) + Maj(a, b, c); \ |
| d += t0; \ |
| h = t0 + t1; |
| |
| for (i = 0; i < 80; i += 8) { |
| RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],i+0); |
| RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],i+1); |
| RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],i+2); |
| RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],i+3); |
| RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],i+4); |
| RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],i+5); |
| RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],i+6); |
| RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],i+7); |
| } |
| #endif |
| |
| |
| /* feedback */ |
| for (i = 0; i < 8; i++) { |
| md->sha512.state[i] = md->sha512.state[i] + S[i]; |
| } |
| |
| return CRYPT_OK; |
| } |
| |
| /* compress 1024-bits */ |
| #ifdef LTC_CLEAN_STACK |
| static int sha512_compress(hash_state * md, unsigned char *buf) |
| { |
| int err; |
| err = _sha512_compress(md, buf); |
| burn_stack(sizeof(ulong64) * 90 + sizeof(int)); |
| return err; |
| } |
| #endif |
| |
| /** |
| Initialize the hash state |
| @param md The hash state you wish to initialize |
| @return CRYPT_OK if successful |
| */ |
| int sha512_init(hash_state * md) |
| { |
| LTC_ARGCHK(md != NULL); |
| md->sha512.curlen = 0; |
| md->sha512.length = 0; |
| md->sha512.state[0] = CONST64(0x6a09e667f3bcc908); |
| md->sha512.state[1] = CONST64(0xbb67ae8584caa73b); |
| md->sha512.state[2] = CONST64(0x3c6ef372fe94f82b); |
| md->sha512.state[3] = CONST64(0xa54ff53a5f1d36f1); |
| md->sha512.state[4] = CONST64(0x510e527fade682d1); |
| md->sha512.state[5] = CONST64(0x9b05688c2b3e6c1f); |
| md->sha512.state[6] = CONST64(0x1f83d9abfb41bd6b); |
| md->sha512.state[7] = CONST64(0x5be0cd19137e2179); |
| return CRYPT_OK; |
| } |
| |
| /** |
| Process a block of memory though the hash |
| @param md The hash state |
| @param in The data to hash |
| @param inlen The length of the data (octets) |
| @return CRYPT_OK if successful |
| */ |
| HASH_PROCESS(sha512_process, sha512_compress, sha512, 128) |
| |
| /** |
| Terminate the hash to get the digest |
| @param md The hash state |
| @param out [out] The destination of the hash (64 bytes) |
| @return CRYPT_OK if successful |
| */ |
| int sha512_done(hash_state * md, unsigned char *out) |
| { |
| int i; |
| |
| LTC_ARGCHK(md != NULL); |
| LTC_ARGCHK(out != NULL); |
| |
| if (md->sha512.curlen >= sizeof(md->sha512.buf)) { |
| return CRYPT_INVALID_ARG; |
| } |
| |
| /* increase the length of the message */ |
| md->sha512.length += md->sha512.curlen * CONST64(8); |
| |
| /* append the '1' bit */ |
| md->sha512.buf[md->sha512.curlen++] = (unsigned char)0x80; |
| |
| /* if the length is currently above 112 bytes we append zeros |
| * then compress. Then we can fall back to padding zeros and length |
| * encoding like normal. |
| */ |
| if (md->sha512.curlen > 112) { |
| while (md->sha512.curlen < 128) { |
| md->sha512.buf[md->sha512.curlen++] = (unsigned char)0; |
| } |
| sha512_compress(md, md->sha512.buf); |
| md->sha512.curlen = 0; |
| } |
| |
| /* pad upto 120 bytes of zeroes |
| * note: that from 112 to 120 is the 64 MSB of the length. We assume that you won't hash |
| * > 2^64 bits of data... :-) |
| */ |
| while (md->sha512.curlen < 120) { |
| md->sha512.buf[md->sha512.curlen++] = (unsigned char)0; |
| } |
| |
| /* store length */ |
| STORE64H(md->sha512.length, md->sha512.buf+120); |
| sha512_compress(md, md->sha512.buf); |
| |
| /* copy output */ |
| for (i = 0; i < 8; i++) { |
| STORE64H(md->sha512.state[i], out+(8*i)); |
| } |
| #ifdef LTC_CLEAN_STACK |
| zeromem(md, sizeof(hash_state)); |
| #endif |
| return CRYPT_OK; |
| } |
| |
| /** |
| Self-test the hash |
| @return CRYPT_OK if successful, CRYPT_NOP if self-tests have been disabled |
| */ |
| int sha512_test(void) |
| { |
| #ifndef LTC_TEST |
| return CRYPT_NOP; |
| #else |
| static const struct { |
| char *msg; |
| unsigned char hash[64]; |
| } tests[] = { |
| { "abc", |
| { 0xdd, 0xaf, 0x35, 0xa1, 0x93, 0x61, 0x7a, 0xba, |
| 0xcc, 0x41, 0x73, 0x49, 0xae, 0x20, 0x41, 0x31, |
| 0x12, 0xe6, 0xfa, 0x4e, 0x89, 0xa9, 0x7e, 0xa2, |
| 0x0a, 0x9e, 0xee, 0xe6, 0x4b, 0x55, 0xd3, 0x9a, |
| 0x21, 0x92, 0x99, 0x2a, 0x27, 0x4f, 0xc1, 0xa8, |
| 0x36, 0xba, 0x3c, 0x23, 0xa3, 0xfe, 0xeb, 0xbd, |
| 0x45, 0x4d, 0x44, 0x23, 0x64, 0x3c, 0xe8, 0x0e, |
| 0x2a, 0x9a, 0xc9, 0x4f, 0xa5, 0x4c, 0xa4, 0x9f } |
| }, |
| { "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu", |
| { 0x8e, 0x95, 0x9b, 0x75, 0xda, 0xe3, 0x13, 0xda, |
| 0x8c, 0xf4, 0xf7, 0x28, 0x14, 0xfc, 0x14, 0x3f, |
| 0x8f, 0x77, 0x79, 0xc6, 0xeb, 0x9f, 0x7f, 0xa1, |
| 0x72, 0x99, 0xae, 0xad, 0xb6, 0x88, 0x90, 0x18, |
| 0x50, 0x1d, 0x28, 0x9e, 0x49, 0x00, 0xf7, 0xe4, |
| 0x33, 0x1b, 0x99, 0xde, 0xc4, 0xb5, 0x43, 0x3a, |
| 0xc7, 0xd3, 0x29, 0xee, 0xb6, 0xdd, 0x26, 0x54, |
| 0x5e, 0x96, 0xe5, 0x5b, 0x87, 0x4b, 0xe9, 0x09 } |
| }, |
| }; |
| |
| int i; |
| unsigned char tmp[64]; |
| hash_state md; |
| |
| for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) { |
| sha512_init(&md); |
| sha512_process(&md, (unsigned char *)tests[i].msg, (unsigned long)strlen(tests[i].msg)); |
| sha512_done(&md, tmp); |
| if (XMEMCMP(tmp, tests[i].hash, 64) != 0) { |
| return CRYPT_FAIL_TESTVECTOR; |
| } |
| } |
| return CRYPT_OK; |
| #endif |
| } |
| |
| #ifdef SHA384 |
| #include "sha384.c" |
| #endif |
| |
| #endif |
| |
| |
| |
| |
| /* $Source: /cvs/libtom/libtomcrypt/src/hashes/sha2/sha512.c,v $ */ |
| /* $Revision: 1.8 $ */ |
| /* $Date: 2006/11/01 09:28:17 $ */ |