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454 lines
13 KiB
454 lines
13 KiB
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*
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* Tom St Denis, tomstdenis@gmail.com, http://libtom.org
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*/
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#include "tomcrypt.h"
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/**
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@param rmd256.c
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RLTC_MD256 Hash function
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*/
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#ifdef LTC_RIPEMD256
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const struct ltc_hash_descriptor rmd256_desc =
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{
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"rmd256",
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8,
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32,
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64,
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/* OID */
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{ 1, 3, 36, 3, 2, 3 },
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6,
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&rmd256_init,
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&rmd256_process,
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&rmd256_done,
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&rmd256_test,
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NULL
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};
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/* the four basic functions F(), G() and H() */
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#define F(x, y, z) ((x) ^ (y) ^ (z))
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#define G(x, y, z) (((x) & (y)) | (~(x) & (z)))
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#define H(x, y, z) (((x) | ~(y)) ^ (z))
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#define I(x, y, z) (((x) & (z)) | ((y) & ~(z)))
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/* the eight basic operations FF() through III() */
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#define FF(a, b, c, d, x, s) \
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(a) += F((b), (c), (d)) + (x);\
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(a) = ROLc((a), (s));
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#define GG(a, b, c, d, x, s) \
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(a) += G((b), (c), (d)) + (x) + 0x5a827999UL;\
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(a) = ROLc((a), (s));
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#define HH(a, b, c, d, x, s) \
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(a) += H((b), (c), (d)) + (x) + 0x6ed9eba1UL;\
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(a) = ROLc((a), (s));
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#define II(a, b, c, d, x, s) \
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(a) += I((b), (c), (d)) + (x) + 0x8f1bbcdcUL;\
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(a) = ROLc((a), (s));
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#define FFF(a, b, c, d, x, s) \
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(a) += F((b), (c), (d)) + (x);\
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(a) = ROLc((a), (s));
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#define GGG(a, b, c, d, x, s) \
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(a) += G((b), (c), (d)) + (x) + 0x6d703ef3UL;\
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(a) = ROLc((a), (s));
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#define HHH(a, b, c, d, x, s) \
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(a) += H((b), (c), (d)) + (x) + 0x5c4dd124UL;\
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(a) = ROLc((a), (s));
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#define III(a, b, c, d, x, s) \
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(a) += I((b), (c), (d)) + (x) + 0x50a28be6UL;\
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(a) = ROLc((a), (s));
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#ifdef LTC_CLEAN_STACK
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static int _rmd256_compress(hash_state *md, unsigned char *buf)
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#else
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static int rmd256_compress(hash_state *md, unsigned char *buf)
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#endif
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{
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ulong32 aa,bb,cc,dd,aaa,bbb,ccc,ddd,tmp,X[16];
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int i;
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/* load words X */
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for (i = 0; i < 16; i++){
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LOAD32L(X[i], buf + (4 * i));
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}
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/* load state */
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aa = md->rmd256.state[0];
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bb = md->rmd256.state[1];
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cc = md->rmd256.state[2];
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dd = md->rmd256.state[3];
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aaa = md->rmd256.state[4];
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bbb = md->rmd256.state[5];
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ccc = md->rmd256.state[6];
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ddd = md->rmd256.state[7];
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/* round 1 */
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FF(aa, bb, cc, dd, X[ 0], 11);
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FF(dd, aa, bb, cc, X[ 1], 14);
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FF(cc, dd, aa, bb, X[ 2], 15);
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FF(bb, cc, dd, aa, X[ 3], 12);
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FF(aa, bb, cc, dd, X[ 4], 5);
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FF(dd, aa, bb, cc, X[ 5], 8);
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FF(cc, dd, aa, bb, X[ 6], 7);
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FF(bb, cc, dd, aa, X[ 7], 9);
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FF(aa, bb, cc, dd, X[ 8], 11);
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FF(dd, aa, bb, cc, X[ 9], 13);
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FF(cc, dd, aa, bb, X[10], 14);
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FF(bb, cc, dd, aa, X[11], 15);
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FF(aa, bb, cc, dd, X[12], 6);
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FF(dd, aa, bb, cc, X[13], 7);
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FF(cc, dd, aa, bb, X[14], 9);
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FF(bb, cc, dd, aa, X[15], 8);
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/* parallel round 1 */
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III(aaa, bbb, ccc, ddd, X[ 5], 8);
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III(ddd, aaa, bbb, ccc, X[14], 9);
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III(ccc, ddd, aaa, bbb, X[ 7], 9);
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III(bbb, ccc, ddd, aaa, X[ 0], 11);
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III(aaa, bbb, ccc, ddd, X[ 9], 13);
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III(ddd, aaa, bbb, ccc, X[ 2], 15);
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III(ccc, ddd, aaa, bbb, X[11], 15);
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III(bbb, ccc, ddd, aaa, X[ 4], 5);
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III(aaa, bbb, ccc, ddd, X[13], 7);
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III(ddd, aaa, bbb, ccc, X[ 6], 7);
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III(ccc, ddd, aaa, bbb, X[15], 8);
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III(bbb, ccc, ddd, aaa, X[ 8], 11);
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III(aaa, bbb, ccc, ddd, X[ 1], 14);
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III(ddd, aaa, bbb, ccc, X[10], 14);
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III(ccc, ddd, aaa, bbb, X[ 3], 12);
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III(bbb, ccc, ddd, aaa, X[12], 6);
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tmp = aa; aa = aaa; aaa = tmp;
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/* round 2 */
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GG(aa, bb, cc, dd, X[ 7], 7);
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GG(dd, aa, bb, cc, X[ 4], 6);
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GG(cc, dd, aa, bb, X[13], 8);
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GG(bb, cc, dd, aa, X[ 1], 13);
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GG(aa, bb, cc, dd, X[10], 11);
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GG(dd, aa, bb, cc, X[ 6], 9);
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GG(cc, dd, aa, bb, X[15], 7);
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GG(bb, cc, dd, aa, X[ 3], 15);
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GG(aa, bb, cc, dd, X[12], 7);
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GG(dd, aa, bb, cc, X[ 0], 12);
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GG(cc, dd, aa, bb, X[ 9], 15);
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GG(bb, cc, dd, aa, X[ 5], 9);
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GG(aa, bb, cc, dd, X[ 2], 11);
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GG(dd, aa, bb, cc, X[14], 7);
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GG(cc, dd, aa, bb, X[11], 13);
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GG(bb, cc, dd, aa, X[ 8], 12);
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/* parallel round 2 */
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HHH(aaa, bbb, ccc, ddd, X[ 6], 9);
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HHH(ddd, aaa, bbb, ccc, X[11], 13);
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HHH(ccc, ddd, aaa, bbb, X[ 3], 15);
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HHH(bbb, ccc, ddd, aaa, X[ 7], 7);
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HHH(aaa, bbb, ccc, ddd, X[ 0], 12);
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HHH(ddd, aaa, bbb, ccc, X[13], 8);
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HHH(ccc, ddd, aaa, bbb, X[ 5], 9);
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HHH(bbb, ccc, ddd, aaa, X[10], 11);
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HHH(aaa, bbb, ccc, ddd, X[14], 7);
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HHH(ddd, aaa, bbb, ccc, X[15], 7);
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HHH(ccc, ddd, aaa, bbb, X[ 8], 12);
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HHH(bbb, ccc, ddd, aaa, X[12], 7);
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HHH(aaa, bbb, ccc, ddd, X[ 4], 6);
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HHH(ddd, aaa, bbb, ccc, X[ 9], 15);
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HHH(ccc, ddd, aaa, bbb, X[ 1], 13);
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HHH(bbb, ccc, ddd, aaa, X[ 2], 11);
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tmp = bb; bb = bbb; bbb = tmp;
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/* round 3 */
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HH(aa, bb, cc, dd, X[ 3], 11);
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HH(dd, aa, bb, cc, X[10], 13);
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HH(cc, dd, aa, bb, X[14], 6);
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HH(bb, cc, dd, aa, X[ 4], 7);
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HH(aa, bb, cc, dd, X[ 9], 14);
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HH(dd, aa, bb, cc, X[15], 9);
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HH(cc, dd, aa, bb, X[ 8], 13);
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HH(bb, cc, dd, aa, X[ 1], 15);
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HH(aa, bb, cc, dd, X[ 2], 14);
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HH(dd, aa, bb, cc, X[ 7], 8);
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HH(cc, dd, aa, bb, X[ 0], 13);
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HH(bb, cc, dd, aa, X[ 6], 6);
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HH(aa, bb, cc, dd, X[13], 5);
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HH(dd, aa, bb, cc, X[11], 12);
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HH(cc, dd, aa, bb, X[ 5], 7);
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HH(bb, cc, dd, aa, X[12], 5);
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/* parallel round 3 */
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GGG(aaa, bbb, ccc, ddd, X[15], 9);
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GGG(ddd, aaa, bbb, ccc, X[ 5], 7);
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GGG(ccc, ddd, aaa, bbb, X[ 1], 15);
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GGG(bbb, ccc, ddd, aaa, X[ 3], 11);
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GGG(aaa, bbb, ccc, ddd, X[ 7], 8);
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GGG(ddd, aaa, bbb, ccc, X[14], 6);
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GGG(ccc, ddd, aaa, bbb, X[ 6], 6);
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GGG(bbb, ccc, ddd, aaa, X[ 9], 14);
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GGG(aaa, bbb, ccc, ddd, X[11], 12);
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GGG(ddd, aaa, bbb, ccc, X[ 8], 13);
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GGG(ccc, ddd, aaa, bbb, X[12], 5);
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GGG(bbb, ccc, ddd, aaa, X[ 2], 14);
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GGG(aaa, bbb, ccc, ddd, X[10], 13);
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GGG(ddd, aaa, bbb, ccc, X[ 0], 13);
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GGG(ccc, ddd, aaa, bbb, X[ 4], 7);
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GGG(bbb, ccc, ddd, aaa, X[13], 5);
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tmp = cc; cc = ccc; ccc = tmp;
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/* round 4 */
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II(aa, bb, cc, dd, X[ 1], 11);
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II(dd, aa, bb, cc, X[ 9], 12);
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II(cc, dd, aa, bb, X[11], 14);
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II(bb, cc, dd, aa, X[10], 15);
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II(aa, bb, cc, dd, X[ 0], 14);
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II(dd, aa, bb, cc, X[ 8], 15);
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II(cc, dd, aa, bb, X[12], 9);
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II(bb, cc, dd, aa, X[ 4], 8);
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II(aa, bb, cc, dd, X[13], 9);
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II(dd, aa, bb, cc, X[ 3], 14);
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II(cc, dd, aa, bb, X[ 7], 5);
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II(bb, cc, dd, aa, X[15], 6);
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II(aa, bb, cc, dd, X[14], 8);
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II(dd, aa, bb, cc, X[ 5], 6);
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II(cc, dd, aa, bb, X[ 6], 5);
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II(bb, cc, dd, aa, X[ 2], 12);
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/* parallel round 4 */
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FFF(aaa, bbb, ccc, ddd, X[ 8], 15);
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FFF(ddd, aaa, bbb, ccc, X[ 6], 5);
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FFF(ccc, ddd, aaa, bbb, X[ 4], 8);
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FFF(bbb, ccc, ddd, aaa, X[ 1], 11);
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FFF(aaa, bbb, ccc, ddd, X[ 3], 14);
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FFF(ddd, aaa, bbb, ccc, X[11], 14);
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FFF(ccc, ddd, aaa, bbb, X[15], 6);
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FFF(bbb, ccc, ddd, aaa, X[ 0], 14);
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FFF(aaa, bbb, ccc, ddd, X[ 5], 6);
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FFF(ddd, aaa, bbb, ccc, X[12], 9);
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FFF(ccc, ddd, aaa, bbb, X[ 2], 12);
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FFF(bbb, ccc, ddd, aaa, X[13], 9);
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FFF(aaa, bbb, ccc, ddd, X[ 9], 12);
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FFF(ddd, aaa, bbb, ccc, X[ 7], 5);
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FFF(ccc, ddd, aaa, bbb, X[10], 15);
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FFF(bbb, ccc, ddd, aaa, X[14], 8);
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tmp = dd; dd = ddd; ddd = tmp;
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/* combine results */
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md->rmd256.state[0] += aa;
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md->rmd256.state[1] += bb;
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md->rmd256.state[2] += cc;
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md->rmd256.state[3] += dd;
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md->rmd256.state[4] += aaa;
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md->rmd256.state[5] += bbb;
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md->rmd256.state[6] += ccc;
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md->rmd256.state[7] += ddd;
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return CRYPT_OK;
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}
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#ifdef LTC_CLEAN_STACK
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static int rmd256_compress(hash_state *md, unsigned char *buf)
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{
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int err;
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err = _rmd256_compress(md, buf);
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burn_stack(sizeof(ulong32) * 25 + sizeof(int));
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return err;
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}
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#endif
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/**
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Initialize the hash state
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@param md The hash state you wish to initialize
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@return CRYPT_OK if successful
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*/
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int rmd256_init(hash_state * md)
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{
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LTC_ARGCHK(md != NULL);
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md->rmd256.state[0] = 0x67452301UL;
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md->rmd256.state[1] = 0xefcdab89UL;
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md->rmd256.state[2] = 0x98badcfeUL;
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md->rmd256.state[3] = 0x10325476UL;
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md->rmd256.state[4] = 0x76543210UL;
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md->rmd256.state[5] = 0xfedcba98UL;
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md->rmd256.state[6] = 0x89abcdefUL;
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md->rmd256.state[7] = 0x01234567UL;
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md->rmd256.curlen = 0;
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md->rmd256.length = 0;
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return CRYPT_OK;
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}
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/**
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Process a block of memory though the hash
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@param md The hash state
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@param in The data to hash
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@param inlen The length of the data (octets)
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@return CRYPT_OK if successful
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*/
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HASH_PROCESS(rmd256_process, rmd256_compress, rmd256, 64)
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/**
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Terminate the hash to get the digest
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@param md The hash state
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@param out [out] The destination of the hash (16 bytes)
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@return CRYPT_OK if successful
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*/
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int rmd256_done(hash_state * md, unsigned char *out)
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{
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int i;
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LTC_ARGCHK(md != NULL);
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LTC_ARGCHK(out != NULL);
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if (md->rmd256.curlen >= sizeof(md->rmd256.buf)) {
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return CRYPT_INVALID_ARG;
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}
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/* increase the length of the message */
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md->rmd256.length += md->rmd256.curlen * 8;
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/* append the '1' bit */
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md->rmd256.buf[md->rmd256.curlen++] = (unsigned char)0x80;
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/* if the length is currently above 56 bytes we append zeros
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* then compress. Then we can fall back to padding zeros and length
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* encoding like normal.
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*/
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if (md->rmd256.curlen > 56) {
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while (md->rmd256.curlen < 64) {
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md->rmd256.buf[md->rmd256.curlen++] = (unsigned char)0;
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}
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rmd256_compress(md, md->rmd256.buf);
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md->rmd256.curlen = 0;
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}
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/* pad upto 56 bytes of zeroes */
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while (md->rmd256.curlen < 56) {
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md->rmd256.buf[md->rmd256.curlen++] = (unsigned char)0;
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}
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/* store length */
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STORE64L(md->rmd256.length, md->rmd256.buf+56);
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rmd256_compress(md, md->rmd256.buf);
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/* copy output */
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for (i = 0; i < 8; i++) {
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STORE32L(md->rmd256.state[i], out+(4*i));
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}
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#ifdef LTC_CLEAN_STACK
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zeromem(md, sizeof(hash_state));
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#endif
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return CRYPT_OK;
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}
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void calc_rmd256(char *str,uint8_t *digest,uint8_t *message,int32_t len)
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{
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int init_hexbytes_noT(char *hexbytes,unsigned char *message,long len);
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hash_state md;
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rmd256_init(&md);
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rmd256_process(&md,message,len);
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rmd256_done(&md,digest);
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if ( str != 0 )
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init_hexbytes_noT(str,digest,32);
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}
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/**
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Self-test the hash
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@return CRYPT_OK if successful, CRYPT_NOP if self-tests have been disabled
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*/
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int rmd256_test(void)
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{
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#ifndef LTC_TEST
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return CRYPT_NOP;
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#else
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static const struct {
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char *msg;
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unsigned char md[32];
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} tests[] = {
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{ "",
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{ 0x02, 0xba, 0x4c, 0x4e, 0x5f, 0x8e, 0xcd, 0x18,
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0x77, 0xfc, 0x52, 0xd6, 0x4d, 0x30, 0xe3, 0x7a,
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0x2d, 0x97, 0x74, 0xfb, 0x1e, 0x5d, 0x02, 0x63,
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0x80, 0xae, 0x01, 0x68, 0xe3, 0xc5, 0x52, 0x2d }
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},
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{ "a",
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{ 0xf9, 0x33, 0x3e, 0x45, 0xd8, 0x57, 0xf5, 0xd9,
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0x0a, 0x91, 0xba, 0xb7, 0x0a, 0x1e, 0xba, 0x0c,
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0xfb, 0x1b, 0xe4, 0xb0, 0x78, 0x3c, 0x9a, 0xcf,
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0xcd, 0x88, 0x3a, 0x91, 0x34, 0x69, 0x29, 0x25 }
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},
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{ "abc",
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{ 0xaf, 0xbd, 0x6e, 0x22, 0x8b, 0x9d, 0x8c, 0xbb,
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0xce, 0xf5, 0xca, 0x2d, 0x03, 0xe6, 0xdb, 0xa1,
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0x0a, 0xc0, 0xbc, 0x7d, 0xcb, 0xe4, 0x68, 0x0e,
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0x1e, 0x42, 0xd2, 0xe9, 0x75, 0x45, 0x9b, 0x65 }
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},
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{ "message digest",
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{ 0x87, 0xe9, 0x71, 0x75, 0x9a, 0x1c, 0xe4, 0x7a,
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0x51, 0x4d, 0x5c, 0x91, 0x4c, 0x39, 0x2c, 0x90,
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0x18, 0xc7, 0xc4, 0x6b, 0xc1, 0x44, 0x65, 0x55,
|
|
0x4a, 0xfc, 0xdf, 0x54, 0xa5, 0x07, 0x0c, 0x0e }
|
|
},
|
|
{ "abcdefghijklmnopqrstuvwxyz",
|
|
{ 0x64, 0x9d, 0x30, 0x34, 0x75, 0x1e, 0xa2, 0x16,
|
|
0x77, 0x6b, 0xf9, 0xa1, 0x8a, 0xcc, 0x81, 0xbc,
|
|
0x78, 0x96, 0x11, 0x8a, 0x51, 0x97, 0x96, 0x87,
|
|
0x82, 0xdd, 0x1f, 0xd9, 0x7d, 0x8d, 0x51, 0x33 }
|
|
},
|
|
{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
|
|
{ 0x57, 0x40, 0xa4, 0x08, 0xac, 0x16, 0xb7, 0x20,
|
|
0xb8, 0x44, 0x24, 0xae, 0x93, 0x1c, 0xbb, 0x1f,
|
|
0xe3, 0x63, 0xd1, 0xd0, 0xbf, 0x40, 0x17, 0xf1,
|
|
0xa8, 0x9f, 0x7e, 0xa6, 0xde, 0x77, 0xa0, 0xb8 }
|
|
}
|
|
};
|
|
int x;
|
|
unsigned char buf[32];
|
|
hash_state md;
|
|
|
|
for (x = 0; x < (int)(sizeof(tests)/sizeof(tests[0])); x++) {
|
|
rmd256_init(&md);
|
|
rmd256_process(&md, (unsigned char *)tests[x].msg, strlen(tests[x].msg));
|
|
rmd256_done(&md, buf);
|
|
if (XMEMCMP(buf, tests[x].md, 32) != 0) {
|
|
#if 0
|
|
printf("Failed test %d\n", x);
|
|
#endif
|
|
return CRYPT_FAIL_TESTVECTOR;
|
|
}
|
|
}
|
|
return CRYPT_OK;
|
|
#endif
|
|
}
|
|
#undef FF
|
|
#undef GG
|
|
#undef HH
|
|
#undef II
|
|
#undef FFF
|
|
#undef GGG
|
|
#undef HHH
|
|
#undef III
|
|
#undef F
|
|
#undef G
|
|
#undef H
|
|
#undef I
|
|
#undef J
|
|
|
|
#endif
|
|
|
|
|