Mercurial > dropbear
diff sha512.c @ 16:09ab3354aa21 libtomcrypt
propagate of e8bea23df30f9f46c647d06db3b223427b4e3604 and b0b6b4a8843b94d9f049cb5ffe0b1ae91ec1bf8b from branch 'au.asn.ucc.matt.ltc-orig' to 'au.asn.ucc.matt.ltc-db'
author | Matt Johnston <matt@ucc.asn.au> |
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date | Tue, 15 Jun 2004 14:27:14 +0000 |
parents | 6362d3854bb4 |
children | b939f2d4431e |
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--- a/sha512.c Tue Jun 15 14:07:21 2004 +0000 +++ b/sha512.c Tue Jun 15 14:27:14 2004 +0000 @@ -1,289 +0,0 @@ -/* 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, [email protected], http://libtomcrypt.org - */ - -/* SHA512 by Tom St Denis */ - -#include "mycrypt.h" - -#ifdef SHA512 - -const struct _hash_descriptor sha512_desc = -{ - "sha512", - 5, - 64, - 128, - - /* DER identifier */ - { 0x30, 0x51, 0x30, 0x0D, 0x06, 0x09, 0x60, 0x86, - 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03, 0x05, - 0x00, 0x04, 0x40 }, - 19, - - &sha512_init, - &sha512_process, - &sha512_done, - &sha512_test -}; - -/* 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) ROR64((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 CLEAN_STACK -static void _sha512_compress(hash_state * md, unsigned char *buf) -#else -static void 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 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]; - } -} - -/* compress 1024-bits */ -#ifdef CLEAN_STACK -static void sha512_compress(hash_state * md, unsigned char *buf) -{ - _sha512_compress(md, buf); - burn_stack(sizeof(ulong64) * 90 + sizeof(int)); -} -#endif - -/* init the sha512 state */ -void sha512_init(hash_state * md) -{ - _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); -} - -HASH_PROCESS(sha512_process, sha512_compress, sha512, 128) - -int sha512_done(hash_state * md, unsigned char *hash) -{ - int i; - - _ARGCHK(md != NULL); - _ARGCHK(hash != 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], hash+(8*i)); - } -#ifdef CLEAN_STACK - zeromem(md, sizeof(hash_state)); -#endif - return CRYPT_OK; -} - -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 (memcmp(tmp, tests[i].hash, 64) != 0) { - return CRYPT_FAIL_TESTVECTOR; - } - } - return CRYPT_OK; - #endif -} - -#ifdef SHA384 - #include "sha384.c" -#endif - -#endif - - -