X-Git-Url: https://pd.if.org/git/?p=zpackage;a=blobdiff_plain;f=libtomcrypt%2Fsrc%2Fhashes%2Fmd4.c;fp=libtomcrypt%2Fsrc%2Fhashes%2Fmd4.c;h=0000000000000000000000000000000000000000;hp=09b6e31fcbff0462b12be34b5a359fb3ea81301f;hb=094fa8c1bc2e27a560833c6a829b1d9b60de7034;hpb=27410df6ded2d78850397c159cbccff1a78012f2 diff --git a/libtomcrypt/src/hashes/md4.c b/libtomcrypt/src/hashes/md4.c deleted file mode 100644 index 09b6e31..0000000 --- a/libtomcrypt/src/hashes/md4.c +++ /dev/null @@ -1,306 +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. - */ -#include "tomcrypt.h" - -/** - @param md4.c - Submitted by Dobes Vandermeer (dobes@smartt.com) -*/ - -#ifdef LTC_MD4 - -const struct ltc_hash_descriptor md4_desc = -{ - "md4", - 6, - 16, - 64, - - /* OID */ - { 1, 2, 840, 113549, 2, 4, }, - 6, - - &md4_init, - &md4_process, - &md4_done, - &md4_test, - NULL -}; - -#define S11 3 -#define S12 7 -#define S13 11 -#define S14 19 -#define S21 3 -#define S22 5 -#define S23 9 -#define S24 13 -#define S31 3 -#define S32 9 -#define S33 11 -#define S34 15 - -/* F, G and H are basic LTC_MD4 functions. */ -#define F(x, y, z) (z ^ (x & (y ^ z))) -#define G(x, y, z) ((x & y) | (z & (x | y))) -#define H(x, y, z) ((x) ^ (y) ^ (z)) - -/* ROTATE_LEFT rotates x left n bits. */ -#define ROTATE_LEFT(x, n) ROLc(x, n) - -/* FF, GG and HH are transformations for rounds 1, 2 and 3 */ -/* Rotation is separate from addition to prevent recomputation */ - -#define FF(a, b, c, d, x, s) { \ - (a) += F ((b), (c), (d)) + (x); \ - (a) = ROTATE_LEFT ((a), (s)); \ - } -#define GG(a, b, c, d, x, s) { \ - (a) += G ((b), (c), (d)) + (x) + 0x5a827999UL; \ - (a) = ROTATE_LEFT ((a), (s)); \ - } -#define HH(a, b, c, d, x, s) { \ - (a) += H ((b), (c), (d)) + (x) + 0x6ed9eba1UL; \ - (a) = ROTATE_LEFT ((a), (s)); \ - } - -#ifdef LTC_CLEAN_STACK -static int _md4_compress(hash_state *md, unsigned char *buf) -#else -static int md4_compress(hash_state *md, unsigned char *buf) -#endif -{ - ulong32 x[16], a, b, c, d; - int i; - - /* copy state */ - a = md->md4.state[0]; - b = md->md4.state[1]; - c = md->md4.state[2]; - d = md->md4.state[3]; - - /* copy the state into 512-bits into W[0..15] */ - for (i = 0; i < 16; i++) { - LOAD32L(x[i], buf + (4*i)); - } - - /* Round 1 */ - FF (a, b, c, d, x[ 0], S11); /* 1 */ - FF (d, a, b, c, x[ 1], S12); /* 2 */ - FF (c, d, a, b, x[ 2], S13); /* 3 */ - FF (b, c, d, a, x[ 3], S14); /* 4 */ - FF (a, b, c, d, x[ 4], S11); /* 5 */ - FF (d, a, b, c, x[ 5], S12); /* 6 */ - FF (c, d, a, b, x[ 6], S13); /* 7 */ - FF (b, c, d, a, x[ 7], S14); /* 8 */ - FF (a, b, c, d, x[ 8], S11); /* 9 */ - FF (d, a, b, c, x[ 9], S12); /* 10 */ - FF (c, d, a, b, x[10], S13); /* 11 */ - FF (b, c, d, a, x[11], S14); /* 12 */ - FF (a, b, c, d, x[12], S11); /* 13 */ - FF (d, a, b, c, x[13], S12); /* 14 */ - FF (c, d, a, b, x[14], S13); /* 15 */ - FF (b, c, d, a, x[15], S14); /* 16 */ - - /* Round 2 */ - GG (a, b, c, d, x[ 0], S21); /* 17 */ - GG (d, a, b, c, x[ 4], S22); /* 18 */ - GG (c, d, a, b, x[ 8], S23); /* 19 */ - GG (b, c, d, a, x[12], S24); /* 20 */ - GG (a, b, c, d, x[ 1], S21); /* 21 */ - GG (d, a, b, c, x[ 5], S22); /* 22 */ - GG (c, d, a, b, x[ 9], S23); /* 23 */ - GG (b, c, d, a, x[13], S24); /* 24 */ - GG (a, b, c, d, x[ 2], S21); /* 25 */ - GG (d, a, b, c, x[ 6], S22); /* 26 */ - GG (c, d, a, b, x[10], S23); /* 27 */ - GG (b, c, d, a, x[14], S24); /* 28 */ - GG (a, b, c, d, x[ 3], S21); /* 29 */ - GG (d, a, b, c, x[ 7], S22); /* 30 */ - GG (c, d, a, b, x[11], S23); /* 31 */ - GG (b, c, d, a, x[15], S24); /* 32 */ - - /* Round 3 */ - HH (a, b, c, d, x[ 0], S31); /* 33 */ - HH (d, a, b, c, x[ 8], S32); /* 34 */ - HH (c, d, a, b, x[ 4], S33); /* 35 */ - HH (b, c, d, a, x[12], S34); /* 36 */ - HH (a, b, c, d, x[ 2], S31); /* 37 */ - HH (d, a, b, c, x[10], S32); /* 38 */ - HH (c, d, a, b, x[ 6], S33); /* 39 */ - HH (b, c, d, a, x[14], S34); /* 40 */ - HH (a, b, c, d, x[ 1], S31); /* 41 */ - HH (d, a, b, c, x[ 9], S32); /* 42 */ - HH (c, d, a, b, x[ 5], S33); /* 43 */ - HH (b, c, d, a, x[13], S34); /* 44 */ - HH (a, b, c, d, x[ 3], S31); /* 45 */ - HH (d, a, b, c, x[11], S32); /* 46 */ - HH (c, d, a, b, x[ 7], S33); /* 47 */ - HH (b, c, d, a, x[15], S34); /* 48 */ - - - /* Update our state */ - md->md4.state[0] = md->md4.state[0] + a; - md->md4.state[1] = md->md4.state[1] + b; - md->md4.state[2] = md->md4.state[2] + c; - md->md4.state[3] = md->md4.state[3] + d; - - return CRYPT_OK; -} - -#ifdef LTC_CLEAN_STACK -static int md4_compress(hash_state *md, unsigned char *buf) -{ - int err; - err = _md4_compress(md, buf); - burn_stack(sizeof(ulong32) * 20 + sizeof(int)); - return err; -} -#endif - -/** - Initialize the hash state - @param md The hash state you wish to initialize - @return CRYPT_OK if successful -*/ -int md4_init(hash_state * md) -{ - LTC_ARGCHK(md != NULL); - md->md4.state[0] = 0x67452301UL; - md->md4.state[1] = 0xefcdab89UL; - md->md4.state[2] = 0x98badcfeUL; - md->md4.state[3] = 0x10325476UL; - md->md4.length = 0; - md->md4.curlen = 0; - 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(md4_process, md4_compress, md4, 64) - -/** - Terminate the hash to get the digest - @param md The hash state - @param out [out] The destination of the hash (16 bytes) - @return CRYPT_OK if successful -*/ -int md4_done(hash_state * md, unsigned char *out) -{ - int i; - - LTC_ARGCHK(md != NULL); - LTC_ARGCHK(out != NULL); - - if (md->md4.curlen >= sizeof(md->md4.buf)) { - return CRYPT_INVALID_ARG; - } - - /* increase the length of the message */ - md->md4.length += md->md4.curlen * 8; - - /* append the '1' bit */ - md->md4.buf[md->md4.curlen++] = (unsigned char)0x80; - - /* if the length is currently above 56 bytes we append zeros - * then compress. Then we can fall back to padding zeros and length - * encoding like normal. - */ - if (md->md4.curlen > 56) { - while (md->md4.curlen < 64) { - md->md4.buf[md->md4.curlen++] = (unsigned char)0; - } - md4_compress(md, md->md4.buf); - md->md4.curlen = 0; - } - - /* pad upto 56 bytes of zeroes */ - while (md->md4.curlen < 56) { - md->md4.buf[md->md4.curlen++] = (unsigned char)0; - } - - /* store length */ - STORE64L(md->md4.length, md->md4.buf+56); - md4_compress(md, md->md4.buf); - - /* copy output */ - for (i = 0; i < 4; i++) { - STORE32L(md->md4.state[i], out+(4*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 md4_test(void) -{ - #ifndef LTC_TEST - return CRYPT_NOP; - #else - static const struct md4_test_case { - const char *input; - unsigned char hash[16]; - } tests[] = { - { "", - {0x31, 0xd6, 0xcf, 0xe0, 0xd1, 0x6a, 0xe9, 0x31, - 0xb7, 0x3c, 0x59, 0xd7, 0xe0, 0xc0, 0x89, 0xc0} }, - { "a", - {0xbd, 0xe5, 0x2c, 0xb3, 0x1d, 0xe3, 0x3e, 0x46, - 0x24, 0x5e, 0x05, 0xfb, 0xdb, 0xd6, 0xfb, 0x24} }, - { "abc", - {0xa4, 0x48, 0x01, 0x7a, 0xaf, 0x21, 0xd8, 0x52, - 0x5f, 0xc1, 0x0a, 0xe8, 0x7a, 0xa6, 0x72, 0x9d} }, - { "message digest", - {0xd9, 0x13, 0x0a, 0x81, 0x64, 0x54, 0x9f, 0xe8, - 0x18, 0x87, 0x48, 0x06, 0xe1, 0xc7, 0x01, 0x4b} }, - { "abcdefghijklmnopqrstuvwxyz", - {0xd7, 0x9e, 0x1c, 0x30, 0x8a, 0xa5, 0xbb, 0xcd, - 0xee, 0xa8, 0xed, 0x63, 0xdf, 0x41, 0x2d, 0xa9} }, - { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", - {0x04, 0x3f, 0x85, 0x82, 0xf2, 0x41, 0xdb, 0x35, - 0x1c, 0xe6, 0x27, 0xe1, 0x53, 0xe7, 0xf0, 0xe4} }, - { "12345678901234567890123456789012345678901234567890123456789012345678901234567890", - {0xe3, 0x3b, 0x4d, 0xdc, 0x9c, 0x38, 0xf2, 0x19, - 0x9c, 0x3e, 0x7b, 0x16, 0x4f, 0xcc, 0x05, 0x36} }, - }; - - int i; - unsigned char tmp[16]; - hash_state md; - - for(i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) { - md4_init(&md); - md4_process(&md, (unsigned char *)tests[i].input, (unsigned long)strlen(tests[i].input)); - md4_done(&md, tmp); - if (compare_testvector(tmp, sizeof(tmp), tests[i].hash, sizeof(tests[i].hash), "MD4", i)) { - return CRYPT_FAIL_TESTVECTOR; - } - - } - return CRYPT_OK; - #endif -} - -#endif - - - -/* ref: $Format:%D$ */ -/* git commit: $Format:%H$ */ -/* commit time: $Format:%ai$ */