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ripemd160.c
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ripemd160.c
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/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/*!\file ripemd160.c
* \brief RIPEMD-160 hash function.
* \author Jeff Johnson <[email protected]>
* \author Bob Deblier <[email protected]>
* \ingroup HASH_m HASH_ripemd160_m
*/
#define BEECRYPT_DLL_EXPORT
#if HAVE_CONFIG_H
# include "config.h"
#endif
#include "beecrypt/ripemd160.h"
#include "beecrypt/endianness.h"
/*!\addtogroup HASH_ripemd160_m
* \{
*/
/*@unchecked@*/ /*@observer@*/
static uint32_t ripemd160hinit[5] = {
0x67452301U, 0xefcdab89U, 0x98badcfeU, 0x10325476U, 0xc3d2e1f0U
};
/*@-sizeoftype@*/
/*@unchecked@*/ /*@observer@*/
const hashFunction ripemd160 = {
.name = "RIPEMD-160",
.paramsize = sizeof(ripemd160Param),
.blocksize = 64,
.digestsize = 20,
.reset = (hashFunctionReset) ripemd160Reset,
.update = (hashFunctionUpdate) ripemd160Update,
.digest = (hashFunctionDigest) ripemd160Digest
};
/*@=sizeoftype@*/
int ripemd160Reset(register ripemd160Param* mp)
{
/*@-sizeoftype@*/
memcpy(mp->h, ripemd160hinit, 5 * sizeof(uint32_t));
memset(mp->data, 0, 16 * sizeof(uint32_t));
/*@=sizeoftype@*/
#if (MP_WBITS == 64)
mpzero(1, mp->length);
#elif (MP_WBITS == 32)
mpzero(2, mp->length);
#else
# error
#endif
mp->offset = 0;
return 0;
}
#define LSR1(a, b, c, d, e, x, s) \
a = ROTL32((b^c^d) + a + x, s) + e;\
c = ROTL32(c, 10);
#define LSR2(a, b, c, d, e, x, s) \
a = ROTL32(((b&c)|(~b&d)) + a + x + 0x5a827999U, s) + e;\
c = ROTL32(c, 10);
#define LSR3(a, b, c, d, e, x, s) \
a = ROTL32(((b|~c)^d) + a + x + 0x6ed9eba1U, s) + e; \
c = ROTL32(c, 10);
#define LSR4(a, b, c, d, e, x, s) \
a = ROTL32(((b&d)|(c&~d)) + a + x + 0x8f1bbcdcU, s) + e; \
c = ROTL32(c, 10);
#define LSR5(a, b, c, d, e, x, s) \
a = ROTL32((b^(c|~d)) + a + x + 0xa953fd4eU, s) + e; \
c = ROTL32(c, 10);
#define RSR5(a, b, c, d, e, x, s) \
a = ROTL32((b^c^d) + a + x, s) + e;\
c = ROTL32(c, 10);
#define RSR4(a, b, c, d, e, x, s) \
a = ROTL32(((b&c)|(~b&d)) + a + x + 0x7a6d76e9U, s) + e;\
c = ROTL32(c, 10);
#define RSR3(a, b, c, d, e, x, s) \
a = ROTL32(((b|~c)^d) + a + x + 0x6d703ef3U, s) + e; \
c = ROTL32(c, 10);
#define RSR2(a, b, c, d, e, x, s) \
a = ROTL32(((b&d)|(c&~d)) + a + x + 0x5c4dd124U, s) + e; \
c = ROTL32(c, 10);
#define RSR1(a, b, c, d, e, x, s) \
a = ROTL32((b^(c|~d)) + a + x + 0x50a28be6U, s) + e; \
c = ROTL32(c, 10);
#ifndef ASM_RIPEMD160PROCESS
void ripemd160Process(ripemd160Param* mp)
{
register uint32_t la, lb, lc, ld, le;
register uint32_t ra, rb, rc, rd, re;
register uint32_t* x;
#ifdef WORDS_BIGENDIAN
register byte t;
#endif
x = mp->data;
#ifdef WORDS_BIGENDIAN
t = 16;
while (t--)
{
register uint32_t temp = swapu32(*x);
*(x++) = temp;
}
x = mp->data;
#endif
la = mp->h[0]; lb = mp->h[1]; lc = mp->h[2]; ld = mp->h[3]; le = mp->h[4];
ra = mp->h[0]; rb = mp->h[1]; rc = mp->h[2]; rd = mp->h[3]; re = mp->h[4];
/* In theory OpenMP would allows us to do the 'left' and 'right' sections in parallel,
* but in practice the overhead make the code much slower
*/
/* left round 1 */
LSR1(la, lb, lc, ld, le, x[ 0], 11);
LSR1(le, la, lb, lc, ld, x[ 1], 14);
LSR1(ld, le, la, lb, lc, x[ 2], 15);
LSR1(lc, ld, le, la, lb, x[ 3], 12);
LSR1(lb, lc, ld, le, la, x[ 4], 5);
LSR1(la, lb, lc, ld, le, x[ 5], 8);
LSR1(le, la, lb, lc, ld, x[ 6], 7);
LSR1(ld, le, la, lb, lc, x[ 7], 9);
LSR1(lc, ld, le, la, lb, x[ 8], 11);
LSR1(lb, lc, ld, le, la, x[ 9], 13);
LSR1(la, lb, lc, ld, le, x[10], 14);
LSR1(le, la, lb, lc, ld, x[11], 15);
LSR1(ld, le, la, lb, lc, x[12], 6);
LSR1(lc, ld, le, la, lb, x[13], 7);
LSR1(lb, lc, ld, le, la, x[14], 9);
LSR1(la, lb, lc, ld, le, x[15], 8);
/* left round 2 */
LSR2(le, la, lb, lc, ld, x[ 7], 7);
LSR2(ld, le, la, lb, lc, x[ 4], 6);
LSR2(lc, ld, le, la, lb, x[13], 8);
LSR2(lb, lc, ld, le, la, x[ 1], 13);
LSR2(la, lb, lc, ld, le, x[10], 11);
LSR2(le, la, lb, lc, ld, x[ 6], 9);
LSR2(ld, le, la, lb, lc, x[15], 7);
LSR2(lc, ld, le, la, lb, x[ 3], 15);
LSR2(lb, lc, ld, le, la, x[12], 7);
LSR2(la, lb, lc, ld, le, x[ 0], 12);
LSR2(le, la, lb, lc, ld, x[ 9], 15);
LSR2(ld, le, la, lb, lc, x[ 5], 9);
LSR2(lc, ld, le, la, lb, x[ 2], 11);
LSR2(lb, lc, ld, le, la, x[14], 7);
LSR2(la, lb, lc, ld, le, x[11], 13);
LSR2(le, la, lb, lc, ld, x[ 8], 12);
/* left round 3 */
LSR3(ld, le, la, lb, lc, x[ 3], 11);
LSR3(lc, ld, le, la, lb, x[10], 13);
LSR3(lb, lc, ld, le, la, x[14], 6);
LSR3(la, lb, lc, ld, le, x[ 4], 7);
LSR3(le, la, lb, lc, ld, x[ 9], 14);
LSR3(ld, le, la, lb, lc, x[15], 9);
LSR3(lc, ld, le, la, lb, x[ 8], 13);
LSR3(lb, lc, ld, le, la, x[ 1], 15);
LSR3(la, lb, lc, ld, le, x[ 2], 14);
LSR3(le, la, lb, lc, ld, x[ 7], 8);
LSR3(ld, le, la, lb, lc, x[ 0], 13);
LSR3(lc, ld, le, la, lb, x[ 6], 6);
LSR3(lb, lc, ld, le, la, x[13], 5);
LSR3(la, lb, lc, ld, le, x[11], 12);
LSR3(le, la, lb, lc, ld, x[ 5], 7);
LSR3(ld, le, la, lb, lc, x[12], 5);
/* left round 4 */
LSR4(lc, ld, le, la, lb, x[ 1], 11);
LSR4(lb, lc, ld, le, la, x[ 9], 12);
LSR4(la, lb, lc, ld, le, x[11], 14);
LSR4(le, la, lb, lc, ld, x[10], 15);
LSR4(ld, le, la, lb, lc, x[ 0], 14);
LSR4(lc, ld, le, la, lb, x[ 8], 15);
LSR4(lb, lc, ld, le, la, x[12], 9);
LSR4(la, lb, lc, ld, le, x[ 4], 8);
LSR4(le, la, lb, lc, ld, x[13], 9);
LSR4(ld, le, la, lb, lc, x[ 3], 14);
LSR4(lc, ld, le, la, lb, x[ 7], 5);
LSR4(lb, lc, ld, le, la, x[15], 6);
LSR4(la, lb, lc, ld, le, x[14], 8);
LSR4(le, la, lb, lc, ld, x[ 5], 6);
LSR4(ld, le, la, lb, lc, x[ 6], 5);
LSR4(lc, ld, le, la, lb, x[ 2], 12);
/* left round 5 */
LSR5(lb, lc, ld, le, la, x[ 4], 9);
LSR5(la, lb, lc, ld, le, x[ 0], 15);
LSR5(le, la, lb, lc, ld, x[ 5], 5);
LSR5(ld, le, la, lb, lc, x[ 9], 11);
LSR5(lc, ld, le, la, lb, x[ 7], 6);
LSR5(lb, lc, ld, le, la, x[12], 8);
LSR5(la, lb, lc, ld, le, x[ 2], 13);
LSR5(le, la, lb, lc, ld, x[10], 12);
LSR5(ld, le, la, lb, lc, x[14], 5);
LSR5(lc, ld, le, la, lb, x[ 1], 12);
LSR5(lb, lc, ld, le, la, x[ 3], 13);
LSR5(la, lb, lc, ld, le, x[ 8], 14);
LSR5(le, la, lb, lc, ld, x[11], 11);
LSR5(ld, le, la, lb, lc, x[ 6], 8);
LSR5(lc, ld, le, la, lb, x[15], 5);
LSR5(lb, lc, ld, le, la, x[13], 6);
/* right round 1 */
RSR1(ra, rb, rc, rd, re, x[ 5], 8);
RSR1(re, ra, rb, rc, rd, x[14], 9);
RSR1(rd, re, ra, rb, rc, x[ 7], 9);
RSR1(rc, rd, re, ra, rb, x[ 0], 11);
RSR1(rb, rc, rd, re, ra, x[ 9], 13);
RSR1(ra, rb, rc, rd, re, x[ 2], 15);
RSR1(re, ra, rb, rc, rd, x[11], 15);
RSR1(rd, re, ra, rb, rc, x[ 4], 5);
RSR1(rc, rd, re, ra, rb, x[13], 7);
RSR1(rb, rc, rd, re, ra, x[ 6], 7);
RSR1(ra, rb, rc, rd, re, x[15], 8);
RSR1(re, ra, rb, rc, rd, x[ 8], 11);
RSR1(rd, re, ra, rb, rc, x[ 1], 14);
RSR1(rc, rd, re, ra, rb, x[10], 14);
RSR1(rb, rc, rd, re, ra, x[ 3], 12);
RSR1(ra, rb, rc, rd, re, x[12], 6);
/* right round 2 */
RSR2(re, ra, rb, rc, rd, x[ 6], 9);
RSR2(rd, re, ra, rb, rc, x[11], 13);
RSR2(rc, rd, re, ra, rb, x[ 3], 15);
RSR2(rb, rc, rd, re, ra, x[ 7], 7);
RSR2(ra, rb, rc, rd, re, x[ 0], 12);
RSR2(re, ra, rb, rc, rd, x[13], 8);
RSR2(rd, re, ra, rb, rc, x[ 5], 9);
RSR2(rc, rd, re, ra, rb, x[10], 11);
RSR2(rb, rc, rd, re, ra, x[14], 7);
RSR2(ra, rb, rc, rd, re, x[15], 7);
RSR2(re, ra, rb, rc, rd, x[ 8], 12);
RSR2(rd, re, ra, rb, rc, x[12], 7);
RSR2(rc, rd, re, ra, rb, x[ 4], 6);
RSR2(rb, rc, rd, re, ra, x[ 9], 15);
RSR2(ra, rb, rc, rd, re, x[ 1], 13);
RSR2(re, ra, rb, rc, rd, x[ 2], 11);
/* right round 3 */
RSR3(rd, re, ra, rb, rc, x[15], 9);
RSR3(rc, rd, re, ra, rb, x[ 5], 7);
RSR3(rb, rc, rd, re, ra, x[ 1], 15);
RSR3(ra, rb, rc, rd, re, x[ 3], 11);
RSR3(re, ra, rb, rc, rd, x[ 7], 8);
RSR3(rd, re, ra, rb, rc, x[14], 6);
RSR3(rc, rd, re, ra, rb, x[ 6], 6);
RSR3(rb, rc, rd, re, ra, x[ 9], 14);
RSR3(ra, rb, rc, rd, re, x[11], 12);
RSR3(re, ra, rb, rc, rd, x[ 8], 13);
RSR3(rd, re, ra, rb, rc, x[12], 5);
RSR3(rc, rd, re, ra, rb, x[ 2], 14);
RSR3(rb, rc, rd, re, ra, x[10], 13);
RSR3(ra, rb, rc, rd, re, x[ 0], 13);
RSR3(re, ra, rb, rc, rd, x[ 4], 7);
RSR3(rd, re, ra, rb, rc, x[13], 5);
/* right round 4 */
RSR4(rc, rd, re, ra, rb, x[ 8], 15);
RSR4(rb, rc, rd, re, ra, x[ 6], 5);
RSR4(ra, rb, rc, rd, re, x[ 4], 8);
RSR4(re, ra, rb, rc, rd, x[ 1], 11);
RSR4(rd, re, ra, rb, rc, x[ 3], 14);
RSR4(rc, rd, re, ra, rb, x[11], 14);
RSR4(rb, rc, rd, re, ra, x[15], 6);
RSR4(ra, rb, rc, rd, re, x[ 0], 14);
RSR4(re, ra, rb, rc, rd, x[ 5], 6);
RSR4(rd, re, ra, rb, rc, x[12], 9);
RSR4(rc, rd, re, ra, rb, x[ 2], 12);
RSR4(rb, rc, rd, re, ra, x[13], 9);
RSR4(ra, rb, rc, rd, re, x[ 9], 12);
RSR4(re, ra, rb, rc, rd, x[ 7], 5);
RSR4(rd, re, ra, rb, rc, x[10], 15);
RSR4(rc, rd, re, ra, rb, x[14], 8);
/* right round 5 */
RSR5(rb, rc, rd, re, ra, x[12] , 8);
RSR5(ra, rb, rc, rd, re, x[15] , 5);
RSR5(re, ra, rb, rc, rd, x[10] , 12);
RSR5(rd, re, ra, rb, rc, x[ 4] , 9);
RSR5(rc, rd, re, ra, rb, x[ 1] , 12);
RSR5(rb, rc, rd, re, ra, x[ 5] , 5);
RSR5(ra, rb, rc, rd, re, x[ 8] , 14);
RSR5(re, ra, rb, rc, rd, x[ 7] , 6);
RSR5(rd, re, ra, rb, rc, x[ 6] , 8);
RSR5(rc, rd, re, ra, rb, x[ 2] , 13);
RSR5(rb, rc, rd, re, ra, x[13] , 6);
RSR5(ra, rb, rc, rd, re, x[14] , 5);
RSR5(re, ra, rb, rc, rd, x[ 0] , 15);
RSR5(rd, re, ra, rb, rc, x[ 3] , 13);
RSR5(rc, rd, re, ra, rb, x[ 9] , 11);
RSR5(rb, rc, rd, re, ra, x[11] , 11);
/* combine results */
rd += lc + mp->h[1];
mp->h[1] = mp->h[2] + ld + re;
mp->h[2] = mp->h[3] + le + ra;
mp->h[3] = mp->h[4] + la + rb;
mp->h[4] = mp->h[0] + lb + rc;
mp->h[0] = rd;
}
#endif
int ripemd160Update(ripemd160Param* mp, const byte* data, size_t size)
{
register uint32_t proclength;
#if (MP_WBITS == 64)
mpw add[1];
mpsetw(1, add, size);
mplshift(1, add, 3);
mpadd(1, mp->length, add);
#elif (MP_WBITS == 32)
mpw add[2];
mpsetw(2, add, size);
mplshift(2, add, 3);
(void) mpadd(2, mp->length, add);
#else
# error
#endif
while (size > 0)
{
proclength = ((mp->offset + size) > 64U) ? (64U - mp->offset) : size;
/*@-mayaliasunique@*/
memcpy(((byte *) mp->data) + mp->offset, data, proclength);
/*@=mayaliasunique@*/
size -= proclength;
data += proclength;
mp->offset += proclength;
if (mp->offset == 64U)
{
ripemd160Process(mp);
mp->offset = 0;
}
}
return 0;
}
static void ripemd160Finish(ripemd160Param* mp)
/*@modifies mp @*/
{
register byte *ptr = ((byte *) mp->data) + mp->offset++;
*(ptr++) = 0x80;
if (mp->offset > 56)
{
while (mp->offset++ < 64)
*(ptr++) = 0;
ripemd160Process(mp);
mp->offset = 0;
}
ptr = ((byte *) mp->data) + mp->offset;
while (mp->offset++ < 56)
*(ptr++) = 0;
#if (MP_WBITS == 64)
ptr[0] = (byte)(mp->length[0] );
ptr[1] = (byte)(mp->length[0] >> 8);
ptr[2] = (byte)(mp->length[0] >> 16);
ptr[3] = (byte)(mp->length[0] >> 24);
ptr[4] = (byte)(mp->length[0] >> 32);
ptr[5] = (byte)(mp->length[0] >> 40);
ptr[6] = (byte)(mp->length[0] >> 48);
ptr[7] = (byte)(mp->length[0] >> 56);
#elif (MP_WBITS == 32)
ptr[0] = (byte)(mp->length[1] );
ptr[1] = (byte)(mp->length[1] >> 8);
ptr[2] = (byte)(mp->length[1] >> 16);
ptr[3] = (byte)(mp->length[1] >> 24);
ptr[4] = (byte)(mp->length[0] );
ptr[5] = (byte)(mp->length[0] >> 8);
ptr[6] = (byte)(mp->length[0] >> 16);
ptr[7] = (byte)(mp->length[0] >> 24);
#else
# error
#endif
ripemd160Process(mp);
mp->offset = 0;
}
/*@-protoparammatch@*/
int ripemd160Digest(ripemd160Param* mp, byte* data)
{
ripemd160Finish(mp);
/* encode 5 integers little-endian style */
data[ 0] = (byte)(mp->h[0] );
data[ 1] = (byte)(mp->h[0] >> 8);
data[ 2] = (byte)(mp->h[0] >> 16);
data[ 3] = (byte)(mp->h[0] >> 24);
data[ 4] = (byte)(mp->h[1] );
data[ 5] = (byte)(mp->h[1] >> 8);
data[ 6] = (byte)(mp->h[1] >> 16);
data[ 7] = (byte)(mp->h[1] >> 24);
data[ 8] = (byte)(mp->h[2] );
data[ 9] = (byte)(mp->h[2] >> 8);
data[10] = (byte)(mp->h[2] >> 16);
data[11] = (byte)(mp->h[2] >> 24);
data[12] = (byte)(mp->h[3] );
data[13] = (byte)(mp->h[3] >> 8);
data[14] = (byte)(mp->h[3] >> 16);
data[15] = (byte)(mp->h[3] >> 24);
data[16] = (byte)(mp->h[4] );
data[17] = (byte)(mp->h[4] >> 8);
data[18] = (byte)(mp->h[4] >> 16);
data[19] = (byte)(mp->h[4] >> 24);
(void) ripemd160Reset(mp);
return 0;
}
/*@=protoparammatch@*/
/*!\}
*/