ripemd160-compress.c 8.74 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
/* ripemd160-compress.c

   RIPE-MD160 (Transform function)

   Copyright (C) 1998, 2001, 2002, 2003 Free Software Foundation, Inc.

   This file is part of GNU Nettle.

   GNU Nettle is free software: you can redistribute it and/or
   modify it under the terms of either:

     * the GNU Lesser General Public License as published by the Free
       Software Foundation; either version 3 of the License, or (at your
       option) any later version.

   or

     * 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.

   or both in parallel, as here.

   GNU Nettle 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
   General Public License for more details.

   You should have received copies of the GNU General Public License and
   the GNU Lesser General Public License along with this program.  If
   not, see http://www.gnu.org/licenses/.
*/

/* Ported from libgcrypt by Andres Mejia <mcitadel@gmail.com> */
35

36 37 38 39
#if HAVE_CONFIG_H
# include "config.h"
#endif

40 41 42
#include <string.h>

#include "ripemd160.h"
43
#include "ripemd160-internal.h"
44

45 46
#include "macros.h"

47 48 49 50 51 52 53 54 55 56

/****************
 * Transform the message X which consists of 16 32-bit-words
 */
void
_nettle_ripemd160_compress(uint32_t *state, const uint8_t *data)
{
  register uint32_t a,b,c,d,e;
  uint32_t aa,bb,cc,dd,ee,t;
  uint32_t x[16];
57 58

#ifdef WORDS_BIGENDIAN
59 60
  {
    int i;
61 62
    for (i=0; i < 16; i++, data += 4 )
      x[i] = LE_READ_UINT32(data);
63 64
  }
#else
65 66 67
  /* memcpy seems a bit faster. Benchmarked on Intel SU4100, it makes
     the entire update function roughly 6% faster. */
  memcpy(x, data, sizeof(x));
68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86
#endif


#define K0  0x00000000
#define K1  0x5A827999
#define K2  0x6ED9EBA1
#define K3  0x8F1BBCDC
#define K4  0xA953FD4E
#define KK0 0x50A28BE6
#define KK1 0x5C4DD124
#define KK2 0x6D703EF3
#define KK3 0x7A6D76E9
#define KK4 0x00000000
#define F0(x,y,z)   ( (x) ^ (y) ^ (z) )
#define F1(x,y,z)   ( ((x) & (y)) | (~(x) & (z)) )
#define F2(x,y,z)   ( ((x) | ~(y)) ^ (z) )
#define F3(x,y,z)   ( ((x) & (z)) | ((y) & ~(z)) )
#define F4(x,y,z)   ( (x) ^ ((y) | ~(z)) )
#define R(a,b,c,d,e,f,k,r,s) do { t = a + f(b,c,d) + k + x[r]; \
87 88
          a = ROTL32(s,t) + e;        \
          c = ROTL32(10,c);         \
89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274
        } while(0)

  /* left lane */
  a = state[0];
  b = state[1];
  c = state[2];
  d = state[3];
  e = state[4];
  R( a, b, c, d, e, F0, K0,  0, 11 );
  R( e, a, b, c, d, F0, K0,  1, 14 );
  R( d, e, a, b, c, F0, K0,  2, 15 );
  R( c, d, e, a, b, F0, K0,  3, 12 );
  R( b, c, d, e, a, F0, K0,  4,  5 );
  R( a, b, c, d, e, F0, K0,  5,  8 );
  R( e, a, b, c, d, F0, K0,  6,  7 );
  R( d, e, a, b, c, F0, K0,  7,  9 );
  R( c, d, e, a, b, F0, K0,  8, 11 );
  R( b, c, d, e, a, F0, K0,  9, 13 );
  R( a, b, c, d, e, F0, K0, 10, 14 );
  R( e, a, b, c, d, F0, K0, 11, 15 );
  R( d, e, a, b, c, F0, K0, 12,  6 );
  R( c, d, e, a, b, F0, K0, 13,  7 );
  R( b, c, d, e, a, F0, K0, 14,  9 );
  R( a, b, c, d, e, F0, K0, 15,  8 );
  R( e, a, b, c, d, F1, K1,  7,  7 );
  R( d, e, a, b, c, F1, K1,  4,  6 );
  R( c, d, e, a, b, F1, K1, 13,  8 );
  R( b, c, d, e, a, F1, K1,  1, 13 );
  R( a, b, c, d, e, F1, K1, 10, 11 );
  R( e, a, b, c, d, F1, K1,  6,  9 );
  R( d, e, a, b, c, F1, K1, 15,  7 );
  R( c, d, e, a, b, F1, K1,  3, 15 );
  R( b, c, d, e, a, F1, K1, 12,  7 );
  R( a, b, c, d, e, F1, K1,  0, 12 );
  R( e, a, b, c, d, F1, K1,  9, 15 );
  R( d, e, a, b, c, F1, K1,  5,  9 );
  R( c, d, e, a, b, F1, K1,  2, 11 );
  R( b, c, d, e, a, F1, K1, 14,  7 );
  R( a, b, c, d, e, F1, K1, 11, 13 );
  R( e, a, b, c, d, F1, K1,  8, 12 );
  R( d, e, a, b, c, F2, K2,  3, 11 );
  R( c, d, e, a, b, F2, K2, 10, 13 );
  R( b, c, d, e, a, F2, K2, 14,  6 );
  R( a, b, c, d, e, F2, K2,  4,  7 );
  R( e, a, b, c, d, F2, K2,  9, 14 );
  R( d, e, a, b, c, F2, K2, 15,  9 );
  R( c, d, e, a, b, F2, K2,  8, 13 );
  R( b, c, d, e, a, F2, K2,  1, 15 );
  R( a, b, c, d, e, F2, K2,  2, 14 );
  R( e, a, b, c, d, F2, K2,  7,  8 );
  R( d, e, a, b, c, F2, K2,  0, 13 );
  R( c, d, e, a, b, F2, K2,  6,  6 );
  R( b, c, d, e, a, F2, K2, 13,  5 );
  R( a, b, c, d, e, F2, K2, 11, 12 );
  R( e, a, b, c, d, F2, K2,  5,  7 );
  R( d, e, a, b, c, F2, K2, 12,  5 );
  R( c, d, e, a, b, F3, K3,  1, 11 );
  R( b, c, d, e, a, F3, K3,  9, 12 );
  R( a, b, c, d, e, F3, K3, 11, 14 );
  R( e, a, b, c, d, F3, K3, 10, 15 );
  R( d, e, a, b, c, F3, K3,  0, 14 );
  R( c, d, e, a, b, F3, K3,  8, 15 );
  R( b, c, d, e, a, F3, K3, 12,  9 );
  R( a, b, c, d, e, F3, K3,  4,  8 );
  R( e, a, b, c, d, F3, K3, 13,  9 );
  R( d, e, a, b, c, F3, K3,  3, 14 );
  R( c, d, e, a, b, F3, K3,  7,  5 );
  R( b, c, d, e, a, F3, K3, 15,  6 );
  R( a, b, c, d, e, F3, K3, 14,  8 );
  R( e, a, b, c, d, F3, K3,  5,  6 );
  R( d, e, a, b, c, F3, K3,  6,  5 );
  R( c, d, e, a, b, F3, K3,  2, 12 );
  R( b, c, d, e, a, F4, K4,  4,  9 );
  R( a, b, c, d, e, F4, K4,  0, 15 );
  R( e, a, b, c, d, F4, K4,  5,  5 );
  R( d, e, a, b, c, F4, K4,  9, 11 );
  R( c, d, e, a, b, F4, K4,  7,  6 );
  R( b, c, d, e, a, F4, K4, 12,  8 );
  R( a, b, c, d, e, F4, K4,  2, 13 );
  R( e, a, b, c, d, F4, K4, 10, 12 );
  R( d, e, a, b, c, F4, K4, 14,  5 );
  R( c, d, e, a, b, F4, K4,  1, 12 );
  R( b, c, d, e, a, F4, K4,  3, 13 );
  R( a, b, c, d, e, F4, K4,  8, 14 );
  R( e, a, b, c, d, F4, K4, 11, 11 );
  R( d, e, a, b, c, F4, K4,  6,  8 );
  R( c, d, e, a, b, F4, K4, 15,  5 );
  R( b, c, d, e, a, F4, K4, 13,  6 );

  aa = a; bb = b; cc = c; dd = d; ee = e;

  /* right lane */
  a = state[0];
  b = state[1];
  c = state[2];
  d = state[3];
  e = state[4];
  R( a, b, c, d, e, F4, KK0,  5,  8);
  R( e, a, b, c, d, F4, KK0, 14,  9);
  R( d, e, a, b, c, F4, KK0,  7,  9);
  R( c, d, e, a, b, F4, KK0,  0, 11);
  R( b, c, d, e, a, F4, KK0,  9, 13);
  R( a, b, c, d, e, F4, KK0,  2, 15);
  R( e, a, b, c, d, F4, KK0, 11, 15);
  R( d, e, a, b, c, F4, KK0,  4,  5);
  R( c, d, e, a, b, F4, KK0, 13,  7);
  R( b, c, d, e, a, F4, KK0,  6,  7);
  R( a, b, c, d, e, F4, KK0, 15,  8);
  R( e, a, b, c, d, F4, KK0,  8, 11);
  R( d, e, a, b, c, F4, KK0,  1, 14);
  R( c, d, e, a, b, F4, KK0, 10, 14);
  R( b, c, d, e, a, F4, KK0,  3, 12);
  R( a, b, c, d, e, F4, KK0, 12,  6);
  R( e, a, b, c, d, F3, KK1,  6,  9);
  R( d, e, a, b, c, F3, KK1, 11, 13);
  R( c, d, e, a, b, F3, KK1,  3, 15);
  R( b, c, d, e, a, F3, KK1,  7,  7);
  R( a, b, c, d, e, F3, KK1,  0, 12);
  R( e, a, b, c, d, F3, KK1, 13,  8);
  R( d, e, a, b, c, F3, KK1,  5,  9);
  R( c, d, e, a, b, F3, KK1, 10, 11);
  R( b, c, d, e, a, F3, KK1, 14,  7);
  R( a, b, c, d, e, F3, KK1, 15,  7);
  R( e, a, b, c, d, F3, KK1,  8, 12);
  R( d, e, a, b, c, F3, KK1, 12,  7);
  R( c, d, e, a, b, F3, KK1,  4,  6);
  R( b, c, d, e, a, F3, KK1,  9, 15);
  R( a, b, c, d, e, F3, KK1,  1, 13);
  R( e, a, b, c, d, F3, KK1,  2, 11);
  R( d, e, a, b, c, F2, KK2, 15,  9);
  R( c, d, e, a, b, F2, KK2,  5,  7);
  R( b, c, d, e, a, F2, KK2,  1, 15);
  R( a, b, c, d, e, F2, KK2,  3, 11);
  R( e, a, b, c, d, F2, KK2,  7,  8);
  R( d, e, a, b, c, F2, KK2, 14,  6);
  R( c, d, e, a, b, F2, KK2,  6,  6);
  R( b, c, d, e, a, F2, KK2,  9, 14);
  R( a, b, c, d, e, F2, KK2, 11, 12);
  R( e, a, b, c, d, F2, KK2,  8, 13);
  R( d, e, a, b, c, F2, KK2, 12,  5);
  R( c, d, e, a, b, F2, KK2,  2, 14);
  R( b, c, d, e, a, F2, KK2, 10, 13);
  R( a, b, c, d, e, F2, KK2,  0, 13);
  R( e, a, b, c, d, F2, KK2,  4,  7);
  R( d, e, a, b, c, F2, KK2, 13,  5);
  R( c, d, e, a, b, F1, KK3,  8, 15);
  R( b, c, d, e, a, F1, KK3,  6,  5);
  R( a, b, c, d, e, F1, KK3,  4,  8);
  R( e, a, b, c, d, F1, KK3,  1, 11);
  R( d, e, a, b, c, F1, KK3,  3, 14);
  R( c, d, e, a, b, F1, KK3, 11, 14);
  R( b, c, d, e, a, F1, KK3, 15,  6);
  R( a, b, c, d, e, F1, KK3,  0, 14);
  R( e, a, b, c, d, F1, KK3,  5,  6);
  R( d, e, a, b, c, F1, KK3, 12,  9);
  R( c, d, e, a, b, F1, KK3,  2, 12);
  R( b, c, d, e, a, F1, KK3, 13,  9);
  R( a, b, c, d, e, F1, KK3,  9, 12);
  R( e, a, b, c, d, F1, KK3,  7,  5);
  R( d, e, a, b, c, F1, KK3, 10, 15);
  R( c, d, e, a, b, F1, KK3, 14,  8);
  R( b, c, d, e, a, F0, KK4, 12,  8);
  R( a, b, c, d, e, F0, KK4, 15,  5);
  R( e, a, b, c, d, F0, KK4, 10, 12);
  R( d, e, a, b, c, F0, KK4,  4,  9);
  R( c, d, e, a, b, F0, KK4,  1, 12);
  R( b, c, d, e, a, F0, KK4,  5,  5);
  R( a, b, c, d, e, F0, KK4,  8, 14);
  R( e, a, b, c, d, F0, KK4,  7,  6);
  R( d, e, a, b, c, F0, KK4,  6,  8);
  R( c, d, e, a, b, F0, KK4,  2, 13);
  R( b, c, d, e, a, F0, KK4, 13,  6);
  R( a, b, c, d, e, F0, KK4, 14,  5);
  R( e, a, b, c, d, F0, KK4,  0, 15);
  R( d, e, a, b, c, F0, KK4,  3, 13);
  R( c, d, e, a, b, F0, KK4,  9, 11);
  R( b, c, d, e, a, F0, KK4, 11, 11);


  t    = state[1] + d + cc;
  state[1] = state[2] + e + dd;
  state[2] = state[3] + a + ee;
  state[3] = state[4] + b + aa;
  state[4] = state[0] + c + bb;
  state[0] = t;
}