+++ /dev/null
-/* 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"
-
-
-/**
- @file md5.c
- LTC_MD5 hash function by Tom St Denis
-*/
-
-#ifdef LTC_MD5
-
-const struct ltc_hash_descriptor md5_desc =
-{
- "md5",
- 3,
- 16,
- 64,
-
- /* OID */
- { 1, 2, 840, 113549, 2, 5, },
- 6,
-
- &md5_init,
- &md5_process,
- &md5_done,
- &md5_test,
- NULL
-};
-
-#define F(x,y,z) (z ^ (x & (y ^ z)))
-#define G(x,y,z) (y ^ (z & (y ^ x)))
-#define H(x,y,z) (x^y^z)
-#define I(x,y,z) (y^(x|(~z)))
-
-#ifdef LTC_SMALL_CODE
-
-#define FF(a,b,c,d,M,s,t) \
- a = (a + F(b,c,d) + M + t); a = ROL(a, s) + b;
-
-#define GG(a,b,c,d,M,s,t) \
- a = (a + G(b,c,d) + M + t); a = ROL(a, s) + b;
-
-#define HH(a,b,c,d,M,s,t) \
- a = (a + H(b,c,d) + M + t); a = ROL(a, s) + b;
-
-#define II(a,b,c,d,M,s,t) \
- a = (a + I(b,c,d) + M + t); a = ROL(a, s) + b;
-
-static const unsigned char Worder[64] = {
- 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
- 1,6,11,0,5,10,15,4,9,14,3,8,13,2,7,12,
- 5,8,11,14,1,4,7,10,13,0,3,6,9,12,15,2,
- 0,7,14,5,12,3,10,1,8,15,6,13,4,11,2,9
-};
-
-static const unsigned char Rorder[64] = {
- 7,12,17,22,7,12,17,22,7,12,17,22,7,12,17,22,
- 5,9,14,20,5,9,14,20,5,9,14,20,5,9,14,20,
- 4,11,16,23,4,11,16,23,4,11,16,23,4,11,16,23,
- 6,10,15,21,6,10,15,21,6,10,15,21,6,10,15,21
-};
-
-static const ulong32 Korder[64] = {
-0xd76aa478UL, 0xe8c7b756UL, 0x242070dbUL, 0xc1bdceeeUL, 0xf57c0fafUL, 0x4787c62aUL, 0xa8304613UL, 0xfd469501UL,
-0x698098d8UL, 0x8b44f7afUL, 0xffff5bb1UL, 0x895cd7beUL, 0x6b901122UL, 0xfd987193UL, 0xa679438eUL, 0x49b40821UL,
-0xf61e2562UL, 0xc040b340UL, 0x265e5a51UL, 0xe9b6c7aaUL, 0xd62f105dUL, 0x02441453UL, 0xd8a1e681UL, 0xe7d3fbc8UL,
-0x21e1cde6UL, 0xc33707d6UL, 0xf4d50d87UL, 0x455a14edUL, 0xa9e3e905UL, 0xfcefa3f8UL, 0x676f02d9UL, 0x8d2a4c8aUL,
-0xfffa3942UL, 0x8771f681UL, 0x6d9d6122UL, 0xfde5380cUL, 0xa4beea44UL, 0x4bdecfa9UL, 0xf6bb4b60UL, 0xbebfbc70UL,
-0x289b7ec6UL, 0xeaa127faUL, 0xd4ef3085UL, 0x04881d05UL, 0xd9d4d039UL, 0xe6db99e5UL, 0x1fa27cf8UL, 0xc4ac5665UL,
-0xf4292244UL, 0x432aff97UL, 0xab9423a7UL, 0xfc93a039UL, 0x655b59c3UL, 0x8f0ccc92UL, 0xffeff47dUL, 0x85845dd1UL,
-0x6fa87e4fUL, 0xfe2ce6e0UL, 0xa3014314UL, 0x4e0811a1UL, 0xf7537e82UL, 0xbd3af235UL, 0x2ad7d2bbUL, 0xeb86d391UL
-};
-
-#else
-
-#define FF(a,b,c,d,M,s,t) \
- a = (a + F(b,c,d) + M + t); a = ROLc(a, s) + b;
-
-#define GG(a,b,c,d,M,s,t) \
- a = (a + G(b,c,d) + M + t); a = ROLc(a, s) + b;
-
-#define HH(a,b,c,d,M,s,t) \
- a = (a + H(b,c,d) + M + t); a = ROLc(a, s) + b;
-
-#define II(a,b,c,d,M,s,t) \
- a = (a + I(b,c,d) + M + t); a = ROLc(a, s) + b;
-
-
-#endif
-
-#ifdef LTC_CLEAN_STACK
-static int _md5_compress(hash_state *md, unsigned char *buf)
-#else
-static int md5_compress(hash_state *md, unsigned char *buf)
-#endif
-{
- ulong32 i, W[16], a, b, c, d;
-#ifdef LTC_SMALL_CODE
- ulong32 t;
-#endif
-
- /* copy the state into 512-bits into W[0..15] */
- for (i = 0; i < 16; i++) {
- LOAD32L(W[i], buf + (4*i));
- }
-
- /* copy state */
- a = md->md5.state[0];
- b = md->md5.state[1];
- c = md->md5.state[2];
- d = md->md5.state[3];
-
-#ifdef LTC_SMALL_CODE
- for (i = 0; i < 16; ++i) {
- FF(a,b,c,d,W[Worder[i]],Rorder[i],Korder[i]);
- t = d; d = c; c = b; b = a; a = t;
- }
-
- for (; i < 32; ++i) {
- GG(a,b,c,d,W[Worder[i]],Rorder[i],Korder[i]);
- t = d; d = c; c = b; b = a; a = t;
- }
-
- for (; i < 48; ++i) {
- HH(a,b,c,d,W[Worder[i]],Rorder[i],Korder[i]);
- t = d; d = c; c = b; b = a; a = t;
- }
-
- for (; i < 64; ++i) {
- II(a,b,c,d,W[Worder[i]],Rorder[i],Korder[i]);
- t = d; d = c; c = b; b = a; a = t;
- }
-
-#else
- FF(a,b,c,d,W[0],7,0xd76aa478UL)
- FF(d,a,b,c,W[1],12,0xe8c7b756UL)
- FF(c,d,a,b,W[2],17,0x242070dbUL)
- FF(b,c,d,a,W[3],22,0xc1bdceeeUL)
- FF(a,b,c,d,W[4],7,0xf57c0fafUL)
- FF(d,a,b,c,W[5],12,0x4787c62aUL)
- FF(c,d,a,b,W[6],17,0xa8304613UL)
- FF(b,c,d,a,W[7],22,0xfd469501UL)
- FF(a,b,c,d,W[8],7,0x698098d8UL)
- FF(d,a,b,c,W[9],12,0x8b44f7afUL)
- FF(c,d,a,b,W[10],17,0xffff5bb1UL)
- FF(b,c,d,a,W[11],22,0x895cd7beUL)
- FF(a,b,c,d,W[12],7,0x6b901122UL)
- FF(d,a,b,c,W[13],12,0xfd987193UL)
- FF(c,d,a,b,W[14],17,0xa679438eUL)
- FF(b,c,d,a,W[15],22,0x49b40821UL)
- GG(a,b,c,d,W[1],5,0xf61e2562UL)
- GG(d,a,b,c,W[6],9,0xc040b340UL)
- GG(c,d,a,b,W[11],14,0x265e5a51UL)
- GG(b,c,d,a,W[0],20,0xe9b6c7aaUL)
- GG(a,b,c,d,W[5],5,0xd62f105dUL)
- GG(d,a,b,c,W[10],9,0x02441453UL)
- GG(c,d,a,b,W[15],14,0xd8a1e681UL)
- GG(b,c,d,a,W[4],20,0xe7d3fbc8UL)
- GG(a,b,c,d,W[9],5,0x21e1cde6UL)
- GG(d,a,b,c,W[14],9,0xc33707d6UL)
- GG(c,d,a,b,W[3],14,0xf4d50d87UL)
- GG(b,c,d,a,W[8],20,0x455a14edUL)
- GG(a,b,c,d,W[13],5,0xa9e3e905UL)
- GG(d,a,b,c,W[2],9,0xfcefa3f8UL)
- GG(c,d,a,b,W[7],14,0x676f02d9UL)
- GG(b,c,d,a,W[12],20,0x8d2a4c8aUL)
- HH(a,b,c,d,W[5],4,0xfffa3942UL)
- HH(d,a,b,c,W[8],11,0x8771f681UL)
- HH(c,d,a,b,W[11],16,0x6d9d6122UL)
- HH(b,c,d,a,W[14],23,0xfde5380cUL)
- HH(a,b,c,d,W[1],4,0xa4beea44UL)
- HH(d,a,b,c,W[4],11,0x4bdecfa9UL)
- HH(c,d,a,b,W[7],16,0xf6bb4b60UL)
- HH(b,c,d,a,W[10],23,0xbebfbc70UL)
- HH(a,b,c,d,W[13],4,0x289b7ec6UL)
- HH(d,a,b,c,W[0],11,0xeaa127faUL)
- HH(c,d,a,b,W[3],16,0xd4ef3085UL)
- HH(b,c,d,a,W[6],23,0x04881d05UL)
- HH(a,b,c,d,W[9],4,0xd9d4d039UL)
- HH(d,a,b,c,W[12],11,0xe6db99e5UL)
- HH(c,d,a,b,W[15],16,0x1fa27cf8UL)
- HH(b,c,d,a,W[2],23,0xc4ac5665UL)
- II(a,b,c,d,W[0],6,0xf4292244UL)
- II(d,a,b,c,W[7],10,0x432aff97UL)
- II(c,d,a,b,W[14],15,0xab9423a7UL)
- II(b,c,d,a,W[5],21,0xfc93a039UL)
- II(a,b,c,d,W[12],6,0x655b59c3UL)
- II(d,a,b,c,W[3],10,0x8f0ccc92UL)
- II(c,d,a,b,W[10],15,0xffeff47dUL)
- II(b,c,d,a,W[1],21,0x85845dd1UL)
- II(a,b,c,d,W[8],6,0x6fa87e4fUL)
- II(d,a,b,c,W[15],10,0xfe2ce6e0UL)
- II(c,d,a,b,W[6],15,0xa3014314UL)
- II(b,c,d,a,W[13],21,0x4e0811a1UL)
- II(a,b,c,d,W[4],6,0xf7537e82UL)
- II(d,a,b,c,W[11],10,0xbd3af235UL)
- II(c,d,a,b,W[2],15,0x2ad7d2bbUL)
- II(b,c,d,a,W[9],21,0xeb86d391UL)
-#endif
-
- md->md5.state[0] = md->md5.state[0] + a;
- md->md5.state[1] = md->md5.state[1] + b;
- md->md5.state[2] = md->md5.state[2] + c;
- md->md5.state[3] = md->md5.state[3] + d;
-
- return CRYPT_OK;
-}
-
-#ifdef LTC_CLEAN_STACK
-static int md5_compress(hash_state *md, unsigned char *buf)
-{
- int err;
- err = _md5_compress(md, buf);
- burn_stack(sizeof(ulong32) * 21);
- return err;
-}
-#endif
-
-/**
- Initialize the hash state
- @param md The hash state you wish to initialize
- @return CRYPT_OK if successful
-*/
-int md5_init(hash_state * md)
-{
- LTC_ARGCHK(md != NULL);
- md->md5.state[0] = 0x67452301UL;
- md->md5.state[1] = 0xefcdab89UL;
- md->md5.state[2] = 0x98badcfeUL;
- md->md5.state[3] = 0x10325476UL;
- md->md5.curlen = 0;
- md->md5.length = 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(md5_process, md5_compress, md5, 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 md5_done(hash_state * md, unsigned char *out)
-{
- int i;
-
- LTC_ARGCHK(md != NULL);
- LTC_ARGCHK(out != NULL);
-
- if (md->md5.curlen >= sizeof(md->md5.buf)) {
- return CRYPT_INVALID_ARG;
- }
-
-
- /* increase the length of the message */
- md->md5.length += md->md5.curlen * 8;
-
- /* append the '1' bit */
- md->md5.buf[md->md5.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->md5.curlen > 56) {
- while (md->md5.curlen < 64) {
- md->md5.buf[md->md5.curlen++] = (unsigned char)0;
- }
- md5_compress(md, md->md5.buf);
- md->md5.curlen = 0;
- }
-
- /* pad upto 56 bytes of zeroes */
- while (md->md5.curlen < 56) {
- md->md5.buf[md->md5.curlen++] = (unsigned char)0;
- }
-
- /* store length */
- STORE64L(md->md5.length, md->md5.buf+56);
- md5_compress(md, md->md5.buf);
-
- /* copy output */
- for (i = 0; i < 4; i++) {
- STORE32L(md->md5.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 md5_test(void)
-{
- #ifndef LTC_TEST
- return CRYPT_NOP;
- #else
- static const struct {
- const char *msg;
- unsigned char hash[16];
- } tests[] = {
- { "",
- { 0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04,
- 0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e } },
- { "a",
- {0x0c, 0xc1, 0x75, 0xb9, 0xc0, 0xf1, 0xb6, 0xa8,
- 0x31, 0xc3, 0x99, 0xe2, 0x69, 0x77, 0x26, 0x61 } },
- { "abc",
- { 0x90, 0x01, 0x50, 0x98, 0x3c, 0xd2, 0x4f, 0xb0,
- 0xd6, 0x96, 0x3f, 0x7d, 0x28, 0xe1, 0x7f, 0x72 } },
- { "message digest",
- { 0xf9, 0x6b, 0x69, 0x7d, 0x7c, 0xb7, 0x93, 0x8d,
- 0x52, 0x5a, 0x2f, 0x31, 0xaa, 0xf1, 0x61, 0xd0 } },
- { "abcdefghijklmnopqrstuvwxyz",
- { 0xc3, 0xfc, 0xd3, 0xd7, 0x61, 0x92, 0xe4, 0x00,
- 0x7d, 0xfb, 0x49, 0x6c, 0xca, 0x67, 0xe1, 0x3b } },
- { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
- { 0xd1, 0x74, 0xab, 0x98, 0xd2, 0x77, 0xd9, 0xf5,
- 0xa5, 0x61, 0x1c, 0x2c, 0x9f, 0x41, 0x9d, 0x9f } },
- { "12345678901234567890123456789012345678901234567890123456789012345678901234567890",
- { 0x57, 0xed, 0xf4, 0xa2, 0x2b, 0xe3, 0xc9, 0x55,
- 0xac, 0x49, 0xda, 0x2e, 0x21, 0x07, 0xb6, 0x7a } },
- { NULL, { 0 } }
- };
-
- int i;
- unsigned char tmp[16];
- hash_state md;
-
- for (i = 0; tests[i].msg != NULL; i++) {
- md5_init(&md);
- md5_process(&md, (unsigned char *)tests[i].msg, (unsigned long)strlen(tests[i].msg));
- md5_done(&md, tmp);
- if (compare_testvector(tmp, sizeof(tmp), tests[i].hash, sizeof(tests[i].hash), "MD5", i)) {
- return CRYPT_FAIL_TESTVECTOR;
- }
- }
- return CRYPT_OK;
- #endif
-}
-
-#endif
-
-
-
-/* ref: $Format:%D$ */
-/* git commit: $Format:%H$ */
-/* commit time: $Format:%ai$ */
projects / zpackage / blobdiff