Lines Matching refs:K2
86 /*
* Copyright (c) 1995, 1996, 1997, 1998 Kungliga Tekniska H�gskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the Kungliga Tekniska
* H�gskolan and its contributors.
*
* 4. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
RCSID("$Id: sha.c,v 1.4 2005/01/10 19:09:08 snsimon Exp $");
#endif
#include <stdlib.h>
#include <string.h>
#include "sha.h"
#ifndef min
#define min(a,b) (((a)>(b))?(b):(a))
#endif
#define A m->counter[0]
#define B m->counter[1]
#define C m->counter[2]
#define D m->counter[3]
#define E m->counter[4]
#define X data
void
sha_init (struct sha *m)
{
m->offset = 0;
m->sz = 0;
A = 0x67452301;
B = 0xefcdab89;
C = 0x98badcfe;
D = 0x10325476;
E = 0xc3d2e1f0;
}
static inline u_int32_t
cshift (u_int32_t x, unsigned int n)
{
return (x << n) | (x >> (32 - n));
}
#define F0(x,y,z) ((x & y) | (~x & z))
#define F1(x,y,z) (x ^ y ^ z)
#define F2(x,y,z) ((x & y) | (x & z) | (y & z))
#define F3(x,y,z) F1(x,y,z)
#define K0 0x5a827999
#define K1 0x6ed9eba1
#define K2 0x8f1bbcdc
#define K3 0xca62c1d6
#define DO(t,f,k) \
do { \
u_int32_t temp; \
\
temp = cshift(AA, 5) + f(BB,CC,DD) + EE + data[t] + k; \
EE = DD; \
DD = CC; \
CC = cshift(BB, 30); \
BB = AA; \
AA = temp; \
} while(0)
static inline void
calc (struct sha *m, u_int32_t *in)
{
u_int32_t AA, BB, CC, DD, EE;
u_int32_t data[80];
int i;
AA = A;
BB = B;
CC = C;
DD = D;
EE = E;
for (i = 0; i < 16; ++i)
data[i] = in[i];
for (i = 16; i < 80; ++i)
data[i] = cshift(data[i-3] ^ data[i-8] ^ data[i-14] ^ data[i-16], 1);
/* t=[0,19] */
DO(0,F0,K0);
DO(1,F0,K0);
DO(2,F0,K0);
DO(3,F0,K0);
DO(4,F0,K0);
DO(5,F0,K0);
DO(6,F0,K0);
DO(7,F0,K0);
DO(8,F0,K0);
DO(9,F0,K0);
DO(10,F0,K0);
DO(11,F0,K0);
DO(12,F0,K0);
DO(13,F0,K0);
DO(14,F0,K0);
DO(15,F0,K0);
DO(16,F0,K0);
DO(17,F0,K0);
DO(18,F0,K0);
DO(19,F0,K0);
/* t=[20,39] */
DO(20,F1,K1);
DO(21,F1,K1);
DO(22,F1,K1);
DO(23,F1,K1);
DO(24,F1,K1);
DO(25,F1,K1);
DO(26,F1,K1);
DO(27,F1,K1);
DO(28,F1,K1);
DO(29,F1,K1);
DO(30,F1,K1);
DO(31,F1,K1);
DO(32,F1,K1);
DO(33,F1,K1);
DO(34,F1,K1);
DO(35,F1,K1);
DO(36,F1,K1);
DO(37,F1,K1);
DO(38,F1,K1);
DO(39,F1,K1);
/* t=[40,59] */
DO(40,F2,K2);
DO(41,F2,K2);
DO(42,F2,K2);
DO(43,F2,K2);
DO(44,F2,K2);
DO(45,F2,K2);
DO(46,F2,K2);
DO(47,F2,K2);
DO(48,F2,K2);
DO(49,F2,K2);
DO(50,F2,K2);
DO(51,F2,K2);
DO(52,F2,K2);
DO(53,F2,K2);
DO(54,F2,K2);
DO(55,F2,K2);
DO(56,F2,K2);
DO(57,F2,K2);
DO(58,F2,K2);
DO(59,F2,K2);
/* t=[60,79] */
DO(60,F3,K3);
DO(61,F3,K3);
DO(62,F3,K3);
DO(63,F3,K3);
DO(64,F3,K (…)