7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin/***********************************************************************
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* This software is part of the ast package *
3e14f97f673e8a630f076077de35afdd43dc1587Roger A. Faulkner* Copyright (c) 1996-2010 AT&T Intellectual Property *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* and is licensed under the *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* Common Public License, Version 1.0 *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* by AT&T Intellectual Property *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* A copy of the License is available at *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* Information and Software Systems Research *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* AT&T Research *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* Florham Park NJ *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* Glenn Fowler <gsf@research.att.com> *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin***********************************************************************/
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * SHA-1 in C
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * By Steve Reid <steve@edmweb.com>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * 100% Public Domain
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Test Vectors (from FIPS PUB 180-1)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * 84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * A million repetitions of "a"
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * 34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#define sha1_description "FIPS 180-1 SHA-1 secure hash algorithm 1."
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#define sha1_options "[+(version)?sha1 (FIPS 180-1) 1996-09-26]\
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin [+(author)?Steve Reid <steve@edmweb.com>]"
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * blk0() and blk() perform the initial expand.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * I got the idea of expanding during the round function from SSLeay
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin (block->l[i] = (rol(block->l[i], 24) & 0xFF00FF00) \
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin (block->l[i & 15] = rol(block->l[(i + 13) & 15] \
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * (R0+R1), R2, R3, R4 are the different operations (rounds) used in SHA1
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin z += ((w & (x ^ y)) ^ y) + blk0(i) + 0x5A827999 + rol(v, 5); \
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin z += ((w & (x ^ y)) ^ y) + blk(i) + 0x5A827999 + rol(v, 5); \
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin z += (w ^ x ^ y) + blk(i) + 0x6ED9EBA1 + rol(v, 5); \
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin z += (((w | x) & y) | (w & x)) + blk(i) + 0x8F1BBCDC + rol(v, 5); \
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin z += (w ^ x ^ y) + blk(i) + 0xCA62C1D6 + rol(v, 5); \
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chintypedef union {
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin unsigned char c[64];
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin unsigned int l[16];
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinstatic void do_R01(uint32_t *a, uint32_t *b, uint32_t *c,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinstatic void do_R2(uint32_t *a, uint32_t *b, uint32_t *c,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinstatic void do_R3(uint32_t *a, uint32_t *b, uint32_t *c,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinstatic void do_R4(uint32_t *a, uint32_t *b, uint32_t *c,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chindo_R01(uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR0(a,b,c,d,e, 0); nR0(e,a,b,c,d, 1); nR0(d,e,a,b,c, 2);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR0(c,d,e,a,b, 3); nR0(b,c,d,e,a, 4); nR0(a,b,c,d,e, 5);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR0(e,a,b,c,d, 6); nR0(d,e,a,b,c, 7); nR0(c,d,e,a,b, 8);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR0(b,c,d,e,a, 9); nR0(a,b,c,d,e,10); nR0(e,a,b,c,d,11);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR0(d,e,a,b,c,12); nR0(c,d,e,a,b,13); nR0(b,c,d,e,a,14);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR0(a,b,c,d,e,15); nR1(e,a,b,c,d,16); nR1(d,e,a,b,c,17);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chindo_R2(uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR2(a,b,c,d,e,20); nR2(e,a,b,c,d,21); nR2(d,e,a,b,c,22);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR2(c,d,e,a,b,23); nR2(b,c,d,e,a,24); nR2(a,b,c,d,e,25);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR2(e,a,b,c,d,26); nR2(d,e,a,b,c,27); nR2(c,d,e,a,b,28);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR2(b,c,d,e,a,29); nR2(a,b,c,d,e,30); nR2(e,a,b,c,d,31);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR2(d,e,a,b,c,32); nR2(c,d,e,a,b,33); nR2(b,c,d,e,a,34);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR2(a,b,c,d,e,35); nR2(e,a,b,c,d,36); nR2(d,e,a,b,c,37);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chindo_R3(uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR3(a,b,c,d,e,40); nR3(e,a,b,c,d,41); nR3(d,e,a,b,c,42);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR3(c,d,e,a,b,43); nR3(b,c,d,e,a,44); nR3(a,b,c,d,e,45);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR3(e,a,b,c,d,46); nR3(d,e,a,b,c,47); nR3(c,d,e,a,b,48);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR3(b,c,d,e,a,49); nR3(a,b,c,d,e,50); nR3(e,a,b,c,d,51);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR3(d,e,a,b,c,52); nR3(c,d,e,a,b,53); nR3(b,c,d,e,a,54);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR3(a,b,c,d,e,55); nR3(e,a,b,c,d,56); nR3(d,e,a,b,c,57);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chindo_R4(uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR4(a,b,c,d,e,60); nR4(e,a,b,c,d,61); nR4(d,e,a,b,c,62);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR4(c,d,e,a,b,63); nR4(b,c,d,e,a,64); nR4(a,b,c,d,e,65);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR4(e,a,b,c,d,66); nR4(d,e,a,b,c,67); nR4(c,d,e,a,b,68);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR4(b,c,d,e,a,69); nR4(a,b,c,d,e,70); nR4(e,a,b,c,d,71);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR4(d,e,a,b,c,72); nR4(c,d,e,a,b,73); nR4(b,c,d,e,a,74);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin nR4(a,b,c,d,e,75); nR4(e,a,b,c,d,76); nR4(d,e,a,b,c,77);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Hash a single 512-bit block. This is the core of the algorithm.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinsha1_transform(uint32_t state[5], const unsigned char buffer[64]) {
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin uint32_t a, b, c, d, e;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin /* Copy sha->state[] to working vars */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin /* 4 rounds of 20 operations each. Loop unrolled. */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin /* Add the working vars back into context.state[] */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin /* Wipe variables */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin a = b = c = d = e = 0;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinsha1_block(register Sum_t* p, const void* s, size_t len)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin unsigned int i, j;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin (void)memcpy(&sha->buffer[j], data, (i = 64 - j));
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin (void)memcpy(&sha->buffer[j], &data[i], len - i);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinsha1_open(const Method_t* method, const char* name)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Add padding and return the message digest.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin unsigned int i;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin for (i = 0; i < 8; i++) {
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin /* Endian independent */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin finalcount[i] = (unsigned char)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin /* The next Update should cause a sha1_transform() */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin sha->digest[i] = (unsigned char)((sha->state[i >> 2] >> ((3 - (i & 3)) * 8)) & 255);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinsha1_print(Sum_t* p, Sfio_t* sp, register int flags, size_t scale)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin register unsigned char* d;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin register int n;