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rmd160.c
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rmd160.c
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/*
* Cryptographic API.
*
* RIPEMD-160 - RACE Integrity Primitives Evaluation Message Digest.
*
* Based on the reference implementation by Antoon Bosselaers, ESAT-COSIC
*
* Copyright (c) 2008 Adrian-Ken Rueegsegger <[email protected]>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
*/
#include "externs.h"
static u32 digest[5];
void rmd160_init()
{
digest[0]=0x67452301;
digest[1]=0xefcdab89;
digest[2]=0x98badcfe;
digest[3]=0x10325476;
digest[4]=0xc3d2e1f0;
}
#define K1 0x00000000
#define K2 0x5a827999
#define K3 0x6ed9eba1
#define K4 0x8f1bbcdc
#define K5 0xa953fd4e
#define KK1 0x50a28be6
#define KK2 0x5c4dd124
#define KK3 0x6d703ef3
#define KK4 0x7a6d76e9
#define KK5 0x00000000
#define F1(x, y, z) (x ^ y ^ z) /* XOR */
#define F2(x, y, z) (z ^ (x & (y ^ z))) /* x ? y : z */
#define F3(x, y, z) ((x | ~y) ^ z)
#define F4(x, y, z) (y ^ (z & (x ^ y))) /* z ? x : y */
#define F5(x, y, z) (x ^ (y | ~z))
#define ROUND(a, b, c, d, e, f, k, x, s) { \
(a) += f((b), (c), (d)) + le32(x) + (k); \
(a) = ROL((a), (s)) + (e); \
(c) = ROL((c), 10); \
}
static void rmd160_transform(u32 state[5], const u32 in[16])
{
u32 aa, bb, cc, dd, ee, aaa, bbb, ccc, ddd, eee;
/* Initialize left lane */
aa = state[0];
bb = state[1];
cc = state[2];
dd = state[3];
ee = state[4];
/* Initialize right lane */
aaa = state[0];
bbb = state[1];
ccc = state[2];
ddd = state[3];
eee = state[4];
/* round 1: left lane */
ROUND(aa, bb, cc, dd, ee, F1, K1, in[0], 11);
ROUND(ee, aa, bb, cc, dd, F1, K1, in[1], 14);
ROUND(dd, ee, aa, bb, cc, F1, K1, in[2], 15);
ROUND(cc, dd, ee, aa, bb, F1, K1, in[3], 12);
ROUND(bb, cc, dd, ee, aa, F1, K1, in[4], 5);
ROUND(aa, bb, cc, dd, ee, F1, K1, in[5], 8);
ROUND(ee, aa, bb, cc, dd, F1, K1, in[6], 7);
ROUND(dd, ee, aa, bb, cc, F1, K1, in[7], 9);
ROUND(cc, dd, ee, aa, bb, F1, K1, in[8], 11);
ROUND(bb, cc, dd, ee, aa, F1, K1, in[9], 13);
ROUND(aa, bb, cc, dd, ee, F1, K1, in[10], 14);
ROUND(ee, aa, bb, cc, dd, F1, K1, in[11], 15);
ROUND(dd, ee, aa, bb, cc, F1, K1, in[12], 6);
ROUND(cc, dd, ee, aa, bb, F1, K1, in[13], 7);
ROUND(bb, cc, dd, ee, aa, F1, K1, in[14], 9);
ROUND(aa, bb, cc, dd, ee, F1, K1, in[15], 8);
/* round 2: left lane */
ROUND(ee, aa, bb, cc, dd, F2, K2, in[7], 7);
ROUND(dd, ee, aa, bb, cc, F2, K2, in[4], 6);
ROUND(cc, dd, ee, aa, bb, F2, K2, in[13], 8);
ROUND(bb, cc, dd, ee, aa, F2, K2, in[1], 13);
ROUND(aa, bb, cc, dd, ee, F2, K2, in[10], 11);
ROUND(ee, aa, bb, cc, dd, F2, K2, in[6], 9);
ROUND(dd, ee, aa, bb, cc, F2, K2, in[15], 7);
ROUND(cc, dd, ee, aa, bb, F2, K2, in[3], 15);
ROUND(bb, cc, dd, ee, aa, F2, K2, in[12], 7);
ROUND(aa, bb, cc, dd, ee, F2, K2, in[0], 12);
ROUND(ee, aa, bb, cc, dd, F2, K2, in[9], 15);
ROUND(dd, ee, aa, bb, cc, F2, K2, in[5], 9);
ROUND(cc, dd, ee, aa, bb, F2, K2, in[2], 11);
ROUND(bb, cc, dd, ee, aa, F2, K2, in[14], 7);
ROUND(aa, bb, cc, dd, ee, F2, K2, in[11], 13);
ROUND(ee, aa, bb, cc, dd, F2, K2, in[8], 12);
/* round 3: left lane */
ROUND(dd, ee, aa, bb, cc, F3, K3, in[3], 11);
ROUND(cc, dd, ee, aa, bb, F3, K3, in[10], 13);
ROUND(bb, cc, dd, ee, aa, F3, K3, in[14], 6);
ROUND(aa, bb, cc, dd, ee, F3, K3, in[4], 7);
ROUND(ee, aa, bb, cc, dd, F3, K3, in[9], 14);
ROUND(dd, ee, aa, bb, cc, F3, K3, in[15], 9);
ROUND(cc, dd, ee, aa, bb, F3, K3, in[8], 13);
ROUND(bb, cc, dd, ee, aa, F3, K3, in[1], 15);
ROUND(aa, bb, cc, dd, ee, F3, K3, in[2], 14);
ROUND(ee, aa, bb, cc, dd, F3, K3, in[7], 8);
ROUND(dd, ee, aa, bb, cc, F3, K3, in[0], 13);
ROUND(cc, dd, ee, aa, bb, F3, K3, in[6], 6);
ROUND(bb, cc, dd, ee, aa, F3, K3, in[13], 5);
ROUND(aa, bb, cc, dd, ee, F3, K3, in[11], 12);
ROUND(ee, aa, bb, cc, dd, F3, K3, in[5], 7);
ROUND(dd, ee, aa, bb, cc, F3, K3, in[12], 5);
/* round 4: left lane */
ROUND(cc, dd, ee, aa, bb, F4, K4, in[1], 11);
ROUND(bb, cc, dd, ee, aa, F4, K4, in[9], 12);
ROUND(aa, bb, cc, dd, ee, F4, K4, in[11], 14);
ROUND(ee, aa, bb, cc, dd, F4, K4, in[10], 15);
ROUND(dd, ee, aa, bb, cc, F4, K4, in[0], 14);
ROUND(cc, dd, ee, aa, bb, F4, K4, in[8], 15);
ROUND(bb, cc, dd, ee, aa, F4, K4, in[12], 9);
ROUND(aa, bb, cc, dd, ee, F4, K4, in[4], 8);
ROUND(ee, aa, bb, cc, dd, F4, K4, in[13], 9);
ROUND(dd, ee, aa, bb, cc, F4, K4, in[3], 14);
ROUND(cc, dd, ee, aa, bb, F4, K4, in[7], 5);
ROUND(bb, cc, dd, ee, aa, F4, K4, in[15], 6);
ROUND(aa, bb, cc, dd, ee, F4, K4, in[14], 8);
ROUND(ee, aa, bb, cc, dd, F4, K4, in[5], 6);
ROUND(dd, ee, aa, bb, cc, F4, K4, in[6], 5);
ROUND(cc, dd, ee, aa, bb, F4, K4, in[2], 12);
/* round 5: left lane */
ROUND(bb, cc, dd, ee, aa, F5, K5, in[4], 9);
ROUND(aa, bb, cc, dd, ee, F5, K5, in[0], 15);
ROUND(ee, aa, bb, cc, dd, F5, K5, in[5], 5);
ROUND(dd, ee, aa, bb, cc, F5, K5, in[9], 11);
ROUND(cc, dd, ee, aa, bb, F5, K5, in[7], 6);
ROUND(bb, cc, dd, ee, aa, F5, K5, in[12], 8);
ROUND(aa, bb, cc, dd, ee, F5, K5, in[2], 13);
ROUND(ee, aa, bb, cc, dd, F5, K5, in[10], 12);
ROUND(dd, ee, aa, bb, cc, F5, K5, in[14], 5);
ROUND(cc, dd, ee, aa, bb, F5, K5, in[1], 12);
ROUND(bb, cc, dd, ee, aa, F5, K5, in[3], 13);
ROUND(aa, bb, cc, dd, ee, F5, K5, in[8], 14);
ROUND(ee, aa, bb, cc, dd, F5, K5, in[11], 11);
ROUND(dd, ee, aa, bb, cc, F5, K5, in[6], 8);
ROUND(cc, dd, ee, aa, bb, F5, K5, in[15], 5);
ROUND(bb, cc, dd, ee, aa, F5, K5, in[13], 6);
/* round 1: right lane */
ROUND(aaa, bbb, ccc, ddd, eee, F5, KK1, in[5], 8);
ROUND(eee, aaa, bbb, ccc, ddd, F5, KK1, in[14], 9);
ROUND(ddd, eee, aaa, bbb, ccc, F5, KK1, in[7], 9);
ROUND(ccc, ddd, eee, aaa, bbb, F5, KK1, in[0], 11);
ROUND(bbb, ccc, ddd, eee, aaa, F5, KK1, in[9], 13);
ROUND(aaa, bbb, ccc, ddd, eee, F5, KK1, in[2], 15);
ROUND(eee, aaa, bbb, ccc, ddd, F5, KK1, in[11], 15);
ROUND(ddd, eee, aaa, bbb, ccc, F5, KK1, in[4], 5);
ROUND(ccc, ddd, eee, aaa, bbb, F5, KK1, in[13], 7);
ROUND(bbb, ccc, ddd, eee, aaa, F5, KK1, in[6], 7);
ROUND(aaa, bbb, ccc, ddd, eee, F5, KK1, in[15], 8);
ROUND(eee, aaa, bbb, ccc, ddd, F5, KK1, in[8], 11);
ROUND(ddd, eee, aaa, bbb, ccc, F5, KK1, in[1], 14);
ROUND(ccc, ddd, eee, aaa, bbb, F5, KK1, in[10], 14);
ROUND(bbb, ccc, ddd, eee, aaa, F5, KK1, in[3], 12);
ROUND(aaa, bbb, ccc, ddd, eee, F5, KK1, in[12], 6);
/* round 2: right lane */
ROUND(eee, aaa, bbb, ccc, ddd, F4, KK2, in[6], 9);
ROUND(ddd, eee, aaa, bbb, ccc, F4, KK2, in[11], 13);
ROUND(ccc, ddd, eee, aaa, bbb, F4, KK2, in[3], 15);
ROUND(bbb, ccc, ddd, eee, aaa, F4, KK2, in[7], 7);
ROUND(aaa, bbb, ccc, ddd, eee, F4, KK2, in[0], 12);
ROUND(eee, aaa, bbb, ccc, ddd, F4, KK2, in[13], 8);
ROUND(ddd, eee, aaa, bbb, ccc, F4, KK2, in[5], 9);
ROUND(ccc, ddd, eee, aaa, bbb, F4, KK2, in[10], 11);
ROUND(bbb, ccc, ddd, eee, aaa, F4, KK2, in[14], 7);
ROUND(aaa, bbb, ccc, ddd, eee, F4, KK2, in[15], 7);
ROUND(eee, aaa, bbb, ccc, ddd, F4, KK2, in[8], 12);
ROUND(ddd, eee, aaa, bbb, ccc, F4, KK2, in[12], 7);
ROUND(ccc, ddd, eee, aaa, bbb, F4, KK2, in[4], 6);
ROUND(bbb, ccc, ddd, eee, aaa, F4, KK2, in[9], 15);
ROUND(aaa, bbb, ccc, ddd, eee, F4, KK2, in[1], 13);
ROUND(eee, aaa, bbb, ccc, ddd, F4, KK2, in[2], 11);
/* round 3: right lane */
ROUND(ddd, eee, aaa, bbb, ccc, F3, KK3, in[15], 9);
ROUND(ccc, ddd, eee, aaa, bbb, F3, KK3, in[5], 7);
ROUND(bbb, ccc, ddd, eee, aaa, F3, KK3, in[1], 15);
ROUND(aaa, bbb, ccc, ddd, eee, F3, KK3, in[3], 11);
ROUND(eee, aaa, bbb, ccc, ddd, F3, KK3, in[7], 8);
ROUND(ddd, eee, aaa, bbb, ccc, F3, KK3, in[14], 6);
ROUND(ccc, ddd, eee, aaa, bbb, F3, KK3, in[6], 6);
ROUND(bbb, ccc, ddd, eee, aaa, F3, KK3, in[9], 14);
ROUND(aaa, bbb, ccc, ddd, eee, F3, KK3, in[11], 12);
ROUND(eee, aaa, bbb, ccc, ddd, F3, KK3, in[8], 13);
ROUND(ddd, eee, aaa, bbb, ccc, F3, KK3, in[12], 5);
ROUND(ccc, ddd, eee, aaa, bbb, F3, KK3, in[2], 14);
ROUND(bbb, ccc, ddd, eee, aaa, F3, KK3, in[10], 13);
ROUND(aaa, bbb, ccc, ddd, eee, F3, KK3, in[0], 13);
ROUND(eee, aaa, bbb, ccc, ddd, F3, KK3, in[4], 7);
ROUND(ddd, eee, aaa, bbb, ccc, F3, KK3, in[13], 5);
/* round 4: right lane */
ROUND(ccc, ddd, eee, aaa, bbb, F2, KK4, in[8], 15);
ROUND(bbb, ccc, ddd, eee, aaa, F2, KK4, in[6], 5);
ROUND(aaa, bbb, ccc, ddd, eee, F2, KK4, in[4], 8);
ROUND(eee, aaa, bbb, ccc, ddd, F2, KK4, in[1], 11);
ROUND(ddd, eee, aaa, bbb, ccc, F2, KK4, in[3], 14);
ROUND(ccc, ddd, eee, aaa, bbb, F2, KK4, in[11], 14);
ROUND(bbb, ccc, ddd, eee, aaa, F2, KK4, in[15], 6);
ROUND(aaa, bbb, ccc, ddd, eee, F2, KK4, in[0], 14);
ROUND(eee, aaa, bbb, ccc, ddd, F2, KK4, in[5], 6);
ROUND(ddd, eee, aaa, bbb, ccc, F2, KK4, in[12], 9);
ROUND(ccc, ddd, eee, aaa, bbb, F2, KK4, in[2], 12);
ROUND(bbb, ccc, ddd, eee, aaa, F2, KK4, in[13], 9);
ROUND(aaa, bbb, ccc, ddd, eee, F2, KK4, in[9], 12);
ROUND(eee, aaa, bbb, ccc, ddd, F2, KK4, in[7], 5);
ROUND(ddd, eee, aaa, bbb, ccc, F2, KK4, in[10], 15);
ROUND(ccc, ddd, eee, aaa, bbb, F2, KK4, in[14], 8);
/* round 5: right lane */
ROUND(bbb, ccc, ddd, eee, aaa, F1, KK5, in[12], 8);
ROUND(aaa, bbb, ccc, ddd, eee, F1, KK5, in[15], 5);
ROUND(eee, aaa, bbb, ccc, ddd, F1, KK5, in[10], 12);
ROUND(ddd, eee, aaa, bbb, ccc, F1, KK5, in[4], 9);
ROUND(ccc, ddd, eee, aaa, bbb, F1, KK5, in[1], 12);
ROUND(bbb, ccc, ddd, eee, aaa, F1, KK5, in[5], 5);
ROUND(aaa, bbb, ccc, ddd, eee, F1, KK5, in[8], 14);
ROUND(eee, aaa, bbb, ccc, ddd, F1, KK5, in[7], 6);
ROUND(ddd, eee, aaa, bbb, ccc, F1, KK5, in[6], 8);
ROUND(ccc, ddd, eee, aaa, bbb, F1, KK5, in[2], 13);
ROUND(bbb, ccc, ddd, eee, aaa, F1, KK5, in[13], 6);
ROUND(aaa, bbb, ccc, ddd, eee, F1, KK5, in[14], 5);
ROUND(eee, aaa, bbb, ccc, ddd, F1, KK5, in[0], 15);
ROUND(ddd, eee, aaa, bbb, ccc, F1, KK5, in[3], 13);
ROUND(ccc, ddd, eee, aaa, bbb, F1, KK5, in[9], 11);
ROUND(bbb, ccc, ddd, eee, aaa, F1, KK5, in[11], 11);
/* combine results */
ddd += cc + state[1]; /* final result for state[0] */
state[1] = state[2] + dd + eee;
state[2] = state[3] + ee + aaa;
state[3] = state[4] + aa + bbb;
state[4] = state[0] + bb + ccc;
state[0] = ddd;
}
void rmd160_process(const char input_block[64])
{
rmd160_transform(digest, (const u32 *)input_block);
}
void rmd160_finish(char output[20])
{
u32 *out=(u32 *)output;
int i;
/* Save output */
for(i=0;i < 5;i++)
out[i]=le32(digest[i]);
}
void rmd160_hash(char output[20], const char input[64])
{
rmd160_init();
rmd160_process(input);
rmd160_finish(output);
}