/* rmd160.c - RIPE-MD160
- * Copyright (C) 1998 Free Software Foundation, Inc.
+ * Copyright (C) 1998, 2001, 2002, 2003 Free Software Foundation, Inc.
*
- * This file is part of GNUPG.
+ * This file is part of Libgcrypt.
*
- * GNUPG 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.
+ * Libgcrypt 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.
*
- * GNUPG is distributed in the hope that it will be useful,
+ * Libgcrypt 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.
+ * GNU Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <assert.h>
-#include "util.h"
+
+#include "g10lib.h"
#include "memory.h"
#include "rmd.h"
+#include "cipher.h" /* Only used for the rmd160_hash_buffer() prototype. */
+#include "bithelp.h"
/*********************************
* RIPEMD-160 is not patented, see (as of 25.10.97)
void
-rmd160_init( RMD160_CONTEXT *hd )
+_gcry_rmd160_init (void *context)
{
- hd->h0 = 0x67452301;
- hd->h1 = 0xEFCDAB89;
- hd->h2 = 0x98BADCFE;
- hd->h3 = 0x10325476;
- hd->h4 = 0xC3D2E1F0;
- hd->nblocks = 0;
- hd->count = 0;
+ RMD160_CONTEXT *hd = context;
+
+ hd->h0 = 0x67452301;
+ hd->h1 = 0xEFCDAB89;
+ hd->h2 = 0x98BADCFE;
+ hd->h3 = 0x10325476;
+ hd->h4 = 0xC3D2E1F0;
+ hd->nblocks = 0;
+ hd->count = 0;
}
-#if defined(__GNUC__) && defined(__i386__)
-static inline u32
-rol(int n, u32 x)
-{
- __asm__("roll %%cl,%0"
- :"=r" (x)
- :"0" (x),"c" (n));
- return x;
-}
-#else
- #define rol(n,x) ( ((x) << (n)) | ((x) >> (32-(n))) )
-#endif
-
/****************
* Transform the message X which consists of 16 32-bit-words
*/
static void
-transform( RMD160_CONTEXT *hd, byte *data )
+transform ( RMD160_CONTEXT *hd, const unsigned char *data )
{
-
-
- u32 a,b,c,d,e,aa,bb,cc,dd,ee,t;
- #ifdef BIG_ENDIAN_HOST
- u32 x[16];
- { int i;
- byte *p2, *p1;
- for(i=0, p1=data, p2=(byte*)x; i < 16; i++, p2 += 4 ) {
- p2[3] = *p1++;
- p2[2] = *p1++;
- p2[1] = *p1++;
- p2[0] = *p1++;
+ register u32 a,b,c,d,e;
+ u32 aa,bb,cc,dd,ee,t;
+#ifdef WORDS_BIGENDIAN
+ u32 x[16];
+ {
+ int i;
+ byte *p2, *p1;
+ for (i=0, p1=data, p2=(byte*)x; i < 16; i++, p2 += 4 )
+ {
+ p2[3] = *p1++;
+ p2[2] = *p1++;
+ p2[1] = *p1++;
+ p2[0] = *p1++;
}
- }
- #else
- #if 0
- u32 *x =(u32*)data;
- #else
- /* this version is better because it is always aligned;
- * The performance penalty on a 586-100 is about 6% which
- * is acceptable - because the data is more local it might
- * also be possible that this is faster on some machines.
- * This function (when compiled with -02 on gcc 2.7.2)
- * executes on a 586-100 (39.73 bogomips) at about 1900kb/sec;
- * [measured with a 4MB data and "gpgm --print-md rmd160"] */
- u32 x[16];
- memcpy( x, data, 64 );
- #endif
- #endif
+ }
+#else
+ /* This version is better because it is always aligned;
+ * The performance penalty on a 586-100 is about 6% which
+ * is acceptable - because the data is more local it might
+ * also be possible that this is faster on some machines.
+ * This function (when compiled with -02 on gcc 2.7.2)
+ * executes on a 586-100 (39.73 bogomips) at about 1900kb/sec;
+ * [measured with a 4MB data and "gpgm --print-md rmd160"] */
+ u32 x[16];
+ memcpy( x, data, 64 );
+#endif
#define K0 0x00000000
#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]; \
- a = rol(s,t) + e; \
- c = rol(10,c); \
+ a = rol(t,s) + e; \
+ c = rol(c,10); \
} while(0)
- /* left lane */
- a = hd->h0;
- b = hd->h1;
- c = hd->h2;
- d = hd->h3;
- e = hd->h4;
- 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 = hd->h0;
- b = hd->h1;
- c = hd->h2;
- d = hd->h3;
- e = hd->h4;
- 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 = hd->h1 + d + cc;
- hd->h1 = hd->h2 + e + dd;
- hd->h2 = hd->h3 + a + ee;
- hd->h3 = hd->h4 + b + aa;
- hd->h4 = hd->h0 + c + bb;
- hd->h0 = t;
+ /* left lane */
+ a = hd->h0;
+ b = hd->h1;
+ c = hd->h2;
+ d = hd->h3;
+ e = hd->h4;
+ 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 = hd->h0;
+ b = hd->h1;
+ c = hd->h2;
+ d = hd->h3;
+ e = hd->h4;
+ 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 = hd->h1 + d + cc;
+ hd->h1 = hd->h2 + e + dd;
+ hd->h2 = hd->h3 + a + ee;
+ hd->h3 = hd->h4 + b + aa;
+ hd->h4 = hd->h0 + c + bb;
+ hd->h0 = t;
}
* of INBUF with length INLEN.
*/
static void
-rmd160_write( RMD160_CONTEXT *hd, byte *inbuf, size_t inlen)
+rmd160_write ( void *context, const void *inbuf_arg, size_t inlen)
{
- if( hd->count == 64 ) { /* flush the buffer */
- transform( hd, hd->buf );
- hd->count = 0;
- hd->nblocks++;
+ const unsigned char *inbuf = inbuf_arg;
+ RMD160_CONTEXT *hd = context;
+
+ if( hd->count == 64 ) /* flush the buffer */
+ {
+ transform( hd, hd->buf );
+ _gcry_burn_stack (108+5*sizeof(void*));
+ hd->count = 0;
+ hd->nblocks++;
}
- if( !inbuf )
- return;
- if( hd->count ) {
- for( ; inlen && hd->count < 64; inlen-- )
- hd->buf[hd->count++] = *inbuf++;
- rmd160_write( hd, NULL, 0 );
- if( !inlen )
- return;
+ if( !inbuf )
+ return;
+ if( hd->count )
+ {
+ for( ; inlen && hd->count < 64; inlen-- )
+ hd->buf[hd->count++] = *inbuf++;
+ rmd160_write( hd, NULL, 0 );
+ if( !inlen )
+ return;
}
- while( inlen >= 64 ) {
- transform( hd, inbuf );
- hd->count = 0;
- hd->nblocks++;
- inlen -= 64;
- inbuf += 64;
+ while( inlen >= 64 )
+ {
+ transform( hd, inbuf );
+ hd->count = 0;
+ hd->nblocks++;
+ inlen -= 64;
+ inbuf += 64;
}
- for( ; inlen && hd->count < 64; inlen-- )
- hd->buf[hd->count++] = *inbuf++;
+ _gcry_burn_stack (108+5*sizeof(void*));
+ for( ; inlen && hd->count < 64; inlen-- )
+ hd->buf[hd->count++] = *inbuf++;
}
/****************
* Returns: 16 bytes in buffer with the mixed contentes of buffer.
*/
void
-rmd160_mixblock( RMD160_CONTEXT *hd, char *buffer )
+_gcry_rmd160_mixblock ( RMD160_CONTEXT *hd, void *blockof64byte )
{
- char *p = buffer;
- transform( hd, buffer );
- #define X(a) do { *(u32*)p = hd->h##a ; p += 4; } while(0)
- X(0);
- X(1);
- X(2);
- X(3);
- X(4);
- #undef X
+ char *p = blockof64byte;
+
+ transform ( hd, blockof64byte );
+#define X(a) do { *(u32*)p = hd->h##a ; p += 4; } while(0)
+ X(0);
+ X(1);
+ X(2);
+ X(3);
+ X(4);
+#undef X
}
*/
static void
-rmd160_final( RMD160_CONTEXT *hd )
+rmd160_final( void *context )
{
- u32 t, msb, lsb;
- byte *p;
-
- rmd160_write(hd, NULL, 0); /* flush */;
-
- msb = 0;
- t = hd->nblocks;
- if( (lsb = t << 6) < t ) /* multiply by 64 to make a byte count */
- msb++;
- msb += t >> 26;
- t = lsb;
- if( (lsb = t + hd->count) < t ) /* add the count */
- msb++;
- t = lsb;
- if( (lsb = t << 3) < t ) /* multiply by 8 to make a bit count */
- msb++;
- msb += t >> 29;
-
- if( hd->count < 56 ) { /* enough room */
- hd->buf[hd->count++] = 0x80; /* pad */
- while( hd->count < 56 )
- hd->buf[hd->count++] = 0; /* pad */
+ RMD160_CONTEXT *hd = context;
+ u32 t, msb, lsb;
+ byte *p;
+
+ rmd160_write(hd, NULL, 0); /* flush */;
+
+ t = hd->nblocks;
+ /* multiply by 64 to make a byte count */
+ lsb = t << 6;
+ msb = t >> 26;
+ /* add the count */
+ t = lsb;
+ if( (lsb += hd->count) < t )
+ msb++;
+ /* multiply by 8 to make a bit count */
+ t = lsb;
+ lsb <<= 3;
+ msb <<= 3;
+ msb |= t >> 29;
+
+ if( hd->count < 56 ) /* enough room */
+ {
+ hd->buf[hd->count++] = 0x80; /* pad */
+ while( hd->count < 56 )
+ hd->buf[hd->count++] = 0; /* pad */
}
- else { /* need one extra block */
- hd->buf[hd->count++] = 0x80; /* pad character */
- while( hd->count < 64 )
- hd->buf[hd->count++] = 0;
- rmd160_write(hd, NULL, 0); /* flush */;
- memset(hd->buf, 0, 56 ); /* fill next block with zeroes */
+ else /* need one extra block */
+ {
+ hd->buf[hd->count++] = 0x80; /* pad character */
+ while( hd->count < 64 )
+ hd->buf[hd->count++] = 0;
+ rmd160_write(hd, NULL, 0); /* flush */;
+ memset(hd->buf, 0, 56 ); /* fill next block with zeroes */
}
- /* append the 64 bit count */
- hd->buf[56] = lsb ;
- hd->buf[57] = lsb >> 8;
- hd->buf[58] = lsb >> 16;
- hd->buf[59] = lsb >> 24;
- hd->buf[60] = msb ;
- hd->buf[61] = msb >> 8;
- hd->buf[62] = msb >> 16;
- hd->buf[63] = msb >> 24;
- transform( hd, hd->buf );
-
- p = hd->buf;
- #ifdef BIG_ENDIAN_HOST
- #define X(a) do { *p++ = hd->h##a ; *p++ = hd->h##a >> 8; \
- *p++ = hd->h##a >> 16; *p++ = hd->h##a >> 24; } while(0)
- #else /* little endian */
- #define X(a) do { *(u32*)p = hd->h##a ; p += 4; } while(0)
- #endif
- X(0);
- X(1);
- X(2);
- X(3);
- X(4);
- #undef X
+ /* append the 64 bit count */
+ hd->buf[56] = lsb ;
+ hd->buf[57] = lsb >> 8;
+ hd->buf[58] = lsb >> 16;
+ hd->buf[59] = lsb >> 24;
+ hd->buf[60] = msb ;
+ hd->buf[61] = msb >> 8;
+ hd->buf[62] = msb >> 16;
+ hd->buf[63] = msb >> 24;
+ transform( hd, hd->buf );
+ _gcry_burn_stack (108+5*sizeof(void*));
+
+ p = hd->buf;
+#ifdef WORDS_BIGENDIAN
+#define X(a) do { *p++ = hd->h##a ; *p++ = hd->h##a >> 8; \
+ *p++ = hd->h##a >> 16; *p++ = hd->h##a >> 24; } while(0)
+#else /* little endian */
+#define X(a) do { *(u32*)p = hd->h##a ; p += 4; } while(0)
+#endif
+ X(0);
+ X(1);
+ X(2);
+ X(3);
+ X(4);
+#undef X
}
static byte *
-rmd160_read( RMD160_CONTEXT *hd )
+rmd160_read( void *context )
{
- return hd->buf;
+ RMD160_CONTEXT *hd = context;
+
+ return hd->buf;
}
+
+
/****************
- * Return some information about the algorithm. We need algo here to
- * distinguish different flavors of the algorithm.
- * Returns: A pointer to string describing the algorithm or NULL if
- * the ALGO is invalid.
+ * Shortcut functions which puts the hash value of the supplied buffer
+ * into outbuf which must have a size of 20 bytes.
*/
-const char *
-rmd160_get_info( int algo, size_t *contextsize,
- byte **r_asnoid, int *r_asnlen, int *r_mdlen,
- void (**r_init)( void *c ),
- void (**r_write)( void *c, byte *buf, size_t nbytes ),
- void (**r_final)( void *c ),
- byte *(**r_read)( void *c )
- )
+void
+_gcry_rmd160_hash_buffer (void *outbuf, const void *buffer, size_t length )
{
- static byte asn[15] = /* Object ID is 1.3.36.3.2.1 */
- { 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x24, 0x03,
- 0x02, 0x01, 0x05, 0x00, 0x04, 0x14 };
-
- if( algo != 3 )
- return NULL;
-
- *contextsize = sizeof(RMD160_CONTEXT);
- *r_asnoid = asn;
- *r_asnlen = DIM(asn);
- *r_mdlen = 20;
- *r_init = (void (*)(void *))rmd160_init;
- *r_write = (void (*)(void *, byte*, size_t))rmd160_write;
- *r_final = (void (*)(void *))rmd160_final;
- *r_read = (byte *(*)(void *))rmd160_read;
-
- return "RIPEMD160";
+ RMD160_CONTEXT hd;
+
+ _gcry_rmd160_init ( &hd );
+ rmd160_write ( &hd, buffer, length );
+ rmd160_final ( &hd );
+ memcpy ( outbuf, hd.buf, 20 );
}
+static byte asn[15] = /* Object ID is 1.3.36.3.2.1 */
+ { 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x24, 0x03,
+ 0x02, 0x01, 0x05, 0x00, 0x04, 0x14 };
+
+static gcry_md_oid_spec_t oid_spec_rmd160[] =
+ {
+ /* rsaSignatureWithripemd160 */
+ { "1.3.36.3.3.1.2" },
+ { NULL },
+ };
+
+gcry_md_spec_t _gcry_digest_spec_rmd160 =
+ {
+ "RIPEMD160", asn, DIM (asn), oid_spec_rmd160, 20,
+ _gcry_rmd160_init, rmd160_write, rmd160_final, rmd160_read,
+ sizeof (RMD160_CONTEXT)
+ };
projects / libgcrypt.git / blobdiff