Mercurial > dropbear
diff whirl.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> |
---|---|
date | Tue, 15 Jun 2004 14:27:14 +0000 |
parents | 6362d3854bb4 |
children | b939f2d4431e |
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line diff
--- a/whirl.c Tue Jun 15 14:07:21 2004 +0000 +++ b/whirl.c Tue Jun 15 14:27:14 2004 +0000 @@ -1,280 +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 - */ - -/* WHIRLPOOL (using their new sbox) hash function by Tom St Denis */ - -#include "mycrypt.h" - -#ifdef WHIRLPOOL - -const struct _hash_descriptor whirlpool_desc = -{ - "whirlpool", - 11, - 64, - 64, - - /* DER encoding (not yet supported) */ - { 0x00 }, - 0, - - &whirlpool_init, - &whirlpool_process, - &whirlpool_done, - &whirlpool_test -}; - -/* the sboxes */ -#include "whirltab.c" - -/* get a_{i,j} */ -#define GB(a,i,j) ((a[(i) & 7] >> (8 * (j))) & 255) - -/* shortcut macro to perform three functions at once */ -#define theta_pi_gamma(a, i) \ - SB0(GB(a, i-0, 7)) ^ \ - SB1(GB(a, i-1, 6)) ^ \ - SB2(GB(a, i-2, 5)) ^ \ - SB3(GB(a, i-3, 4)) ^ \ - SB4(GB(a, i-4, 3)) ^ \ - SB5(GB(a, i-5, 2)) ^ \ - SB6(GB(a, i-6, 1)) ^ \ - SB7(GB(a, i-7, 0)) - -#ifdef CLEAN_STACK -static void _whirlpool_compress(hash_state *md, unsigned char *buf) -#else -static void whirlpool_compress(hash_state *md, unsigned char *buf) -#endif -{ - ulong64 K[2][8], T[3][8]; - int x, y; - - /* load the block/state */ - for (x = 0; x < 8; x++) { - K[0][x] = md->whirlpool.state[x]; - - LOAD64H(T[0][x], buf + (8 * x)); - T[2][x] = T[0][x]; - T[0][x] ^= K[0][x]; - } - - /* do rounds 1..10 */ - for (x = 0; x < 10; x += 2) { - /* odd round */ - /* apply main transform to K[0] into K[1] */ - for (y = 0; y < 8; y++) { - K[1][y] = theta_pi_gamma(K[0], y); - } - /* xor the constant */ - K[1][0] ^= cont[x]; - - /* apply main transform to T[0] into T[1] */ - for (y = 0; y < 8; y++) { - T[1][y] = theta_pi_gamma(T[0], y) ^ K[1][y]; - } - - /* even round */ - /* apply main transform to K[1] into K[0] */ - for (y = 0; y < 8; y++) { - K[0][y] = theta_pi_gamma(K[1], y); - } - /* xor the constant */ - K[0][0] ^= cont[x+1]; - - /* apply main transform to T[0] into T[1] */ - for (y = 0; y < 8; y++) { - T[0][y] = theta_pi_gamma(T[1], y) ^ K[0][y]; - } - } - - /* store state */ - for (x = 0; x < 8; x++) { - md->whirlpool.state[x] ^= T[0][x] ^ T[2][x]; - } -} - - -#ifdef CLEAN_STACK -static void whirlpool_compress(hash_state *md, unsigned char *buf) -{ - _whirlpool_compress(md, buf); - burn_stack((5 * 8 * sizeof(ulong64)) + (2 * sizeof(int))); -} -#endif - - -void whirlpool_init(hash_state * md) -{ - _ARGCHK(md != NULL); - zeromem(&md->whirlpool, sizeof(md->whirlpool)); -} - -HASH_PROCESS(whirlpool_process, whirlpool_compress, whirlpool, 64) - -int whirlpool_done(hash_state * md, unsigned char *hash) -{ - int i; - - _ARGCHK(md != NULL); - _ARGCHK(hash != NULL); - - if (md->whirlpool.curlen >= sizeof(md->whirlpool.buf)) { - return CRYPT_INVALID_ARG; - } - - /* increase the length of the message */ - md->whirlpool.length += md->whirlpool.curlen * 8; - - /* append the '1' bit */ - md->whirlpool.buf[md->whirlpool.curlen++] = (unsigned char)0x80; - - /* if the length is currently above 32 bytes we append zeros - * then compress. Then we can fall back to padding zeros and length - * encoding like normal. - */ - if (md->whirlpool.curlen > 32) { - while (md->whirlpool.curlen < 64) { - md->whirlpool.buf[md->whirlpool.curlen++] = (unsigned char)0; - } - whirlpool_compress(md, md->whirlpool.buf); - md->whirlpool.curlen = 0; - } - - /* pad upto 56 bytes of zeroes (should be 32 but we only support 64-bit lengths) */ - while (md->whirlpool.curlen < 56) { - md->whirlpool.buf[md->whirlpool.curlen++] = (unsigned char)0; - } - - /* store length */ - STORE64H(md->whirlpool.length, md->whirlpool.buf+56); - whirlpool_compress(md, md->whirlpool.buf); - - /* copy output */ - for (i = 0; i < 8; i++) { - STORE64H(md->whirlpool.state[i], hash+(8*i)); - } -#ifdef CLEAN_STACK - zeromem(md, sizeof(*md)); -#endif - return CRYPT_OK; -} - - -int whirlpool_test(void) -{ - #ifndef LTC_TEST - return CRYPT_NOP; - #else - static const struct { - int len; - unsigned char msg[128], hash[64]; - } tests[] = { - - /* NULL Message */ -{ - 0, - { 0x00 }, - { 0x19, 0xFA, 0x61, 0xD7, 0x55, 0x22, 0xA4, 0x66, 0x9B, 0x44, 0xE3, 0x9C, 0x1D, 0x2E, 0x17, 0x26, - 0xC5, 0x30, 0x23, 0x21, 0x30, 0xD4, 0x07, 0xF8, 0x9A, 0xFE, 0xE0, 0x96, 0x49, 0x97, 0xF7, 0xA7, - 0x3E, 0x83, 0xBE, 0x69, 0x8B, 0x28, 0x8F, 0xEB, 0xCF, 0x88, 0xE3, 0xE0, 0x3C, 0x4F, 0x07, 0x57, - 0xEA, 0x89, 0x64, 0xE5, 0x9B, 0x63, 0xD9, 0x37, 0x08, 0xB1, 0x38, 0xCC, 0x42, 0xA6, 0x6E, 0xB3 } -}, - - - /* 448-bits of 0 bits */ -{ - - 56, - { 0x00 }, - { 0x0B, 0x3F, 0x53, 0x78, 0xEB, 0xED, 0x2B, 0xF4, 0xD7, 0xBE, 0x3C, 0xFD, 0x81, 0x8C, 0x1B, 0x03, - 0xB6, 0xBB, 0x03, 0xD3, 0x46, 0x94, 0x8B, 0x04, 0xF4, 0xF4, 0x0C, 0x72, 0x6F, 0x07, 0x58, 0x70, - 0x2A, 0x0F, 0x1E, 0x22, 0x58, 0x80, 0xE3, 0x8D, 0xD5, 0xF6, 0xED, 0x6D, 0xE9, 0xB1, 0xE9, 0x61, - 0xE4, 0x9F, 0xC1, 0x31, 0x8D, 0x7C, 0xB7, 0x48, 0x22, 0xF3, 0xD0, 0xE2, 0xE9, 0xA7, 0xE7, 0xB0 } -}, - - /* 520-bits of 0 bits */ -{ - 65, - { 0x00 }, - { 0x85, 0xE1, 0x24, 0xC4, 0x41, 0x5B, 0xCF, 0x43, 0x19, 0x54, 0x3E, 0x3A, 0x63, 0xFF, 0x57, 0x1D, - 0x09, 0x35, 0x4C, 0xEE, 0xBE, 0xE1, 0xE3, 0x25, 0x30, 0x8C, 0x90, 0x69, 0xF4, 0x3E, 0x2A, 0xE4, - 0xD0, 0xE5, 0x1D, 0x4E, 0xB1, 0xE8, 0x64, 0x28, 0x70, 0x19, 0x4E, 0x95, 0x30, 0xD8, 0xD8, 0xAF, - 0x65, 0x89, 0xD1, 0xBF, 0x69, 0x49, 0xDD, 0xF9, 0x0A, 0x7F, 0x12, 0x08, 0x62, 0x37, 0x95, 0xB9 } -}, - - /* 512-bits, leading set */ -{ - 64, - { 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, - { 0x10, 0x3E, 0x00, 0x55, 0xA9, 0xB0, 0x90, 0xE1, 0x1C, 0x8F, 0xDD, 0xEB, 0xBA, 0x06, 0xC0, 0x5A, - 0xCE, 0x8B, 0x64, 0xB8, 0x96, 0x12, 0x8F, 0x6E, 0xED, 0x30, 0x71, 0xFC, 0xF3, 0xDC, 0x16, 0x94, - 0x67, 0x78, 0xE0, 0x72, 0x23, 0x23, 0x3F, 0xD1, 0x80, 0xFC, 0x40, 0xCC, 0xDB, 0x84, 0x30, 0xA6, - 0x40, 0xE3, 0x76, 0x34, 0x27, 0x1E, 0x65, 0x5C, 0xA1, 0x67, 0x4E, 0xBF, 0xF5, 0x07, 0xF8, 0xCB } -}, - - /* 512-bits, leading set of second byte */ -{ - 64, - { 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, - { 0x35, 0x7B, 0x42, 0xEA, 0x79, 0xBC, 0x97, 0x86, 0x97, 0x5A, 0x3C, 0x44, 0x70, 0xAA, 0xB2, 0x3E, - 0x62, 0x29, 0x79, 0x7B, 0xAD, 0xBD, 0x54, 0x36, 0x5B, 0x54, 0x96, 0xE5, 0x5D, 0x9D, 0xD7, 0x9F, - 0xE9, 0x62, 0x4F, 0xB4, 0x22, 0x66, 0x93, 0x0A, 0x62, 0x8E, 0xD4, 0xDB, 0x08, 0xF9, 0xDD, 0x35, - 0xEF, 0x1B, 0xE1, 0x04, 0x53, 0xFC, 0x18, 0xF4, 0x2C, 0x7F, 0x5E, 0x1F, 0x9B, 0xAE, 0x55, 0xE0 } -}, - - /* 512-bits, leading set of last byte */ -{ - 64, - { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 }, - { 0x8B, 0x39, 0x04, 0xDD, 0x19, 0x81, 0x41, 0x26, 0xFD, 0x02, 0x74, 0xAB, 0x49, 0xC5, 0x97, 0xF6, - 0xD7, 0x75, 0x33, 0x52, 0xA2, 0xDD, 0x91, 0xFD, 0x8F, 0x9F, 0x54, 0x05, 0x4C, 0x54, 0xBF, 0x0F, - 0x06, 0xDB, 0x4F, 0xF7, 0x08, 0xA3, 0xA2, 0x8B, 0xC3, 0x7A, 0x92, 0x1E, 0xEE, 0x11, 0xED, 0x7B, - 0x6A, 0x53, 0x79, 0x32, 0xCC, 0x5E, 0x94, 0xEE, 0x1E, 0xA6, 0x57, 0x60, 0x7E, 0x36, 0xC9, 0xF7 } -}, - -}; - - int i; - unsigned char tmp[64]; - hash_state md; - - for (i = 0; i < (int)(sizeof(tests)/sizeof(tests[0])); i++) { - whirlpool_init(&md); - whirlpool_process(&md, (unsigned char *)tests[i].msg, tests[i].len); - whirlpool_done(&md, tmp); - if (memcmp(tmp, tests[i].hash, 64) != 0) { -#if 0 - printf("\nFailed test %d\n", i); - for (i = 0; i < 64; ) { - printf("%02x ", tmp[i]); - if (!(++i & 15)) printf("\n"); - } -#endif - return CRYPT_FAIL_TESTVECTOR; - } - } - return CRYPT_OK; - #endif -} - - -#endif -