+++ /dev/null
-/*
-** Copyright 1998 - 2000 Double Precision, Inc.
-** See COPYING for distribution information.
-*/
-
-#define MD5_INTERNAL
-#include "md5.h"
-#include <string.h>
-#include <stdlib.h>
-
-static const char rcsid[]="$Id: md5.c,v 1.7 2000/07/30 01:08:09 mrsam Exp $";
-
-#define MD5_BYTE unsigned char
-
-#define MD5_ROL(w,n) \
- ( (w) << (n) | ( (w) >> (32-(n)) ) )
-
-static MD5_WORD T[64]={
-0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
-0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
-0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
-0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
-0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
-0xd62f105d, 0x2441453, 0xd8a1e681, 0xe7d3fbc8,
-0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
-0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
-0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
-0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
-0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x4881d05,
-0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
-0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
-0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
-0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
-0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391};
-
-void md5_context_init(struct MD5_CONTEXT *c)
-{
- if (sizeof(MD5_WORD) != 4) abort();
-
- c->A=0x67452301;
- c->B=0xefcdab89;
- c->C=0x98badcfe;
- c->D=0x10325476;
-
- c->blk_ptr=0;
-}
-
-void md5_context_hash(struct MD5_CONTEXT *c,
- const unsigned char blk[MD5_BLOCK_SIZE])
-{
-MD5_WORD x[16];
-unsigned i, j;
-MD5_WORD A, B, C, D;
-MD5_WORD zz;
-
- for (i=j=0; i<16; i++)
- {
- MD5_WORD w=(MD5_WORD)blk[j++];
-
- w |= (MD5_WORD)blk[j++] << 8;
- w |= (MD5_WORD)blk[j++] << 16;
- w |= (MD5_WORD)blk[j++] << 24;
- x[i]= w;
- }
-
-#define F(X,Y,Z) ( ((X) & (Y)) | ( (~(X)) & (Z)))
-#define G(X,Y,Z) ( ((X) & (Z)) | ( (Y) & (~(Z))))
-#define H(X,Y,Z) ( (X) ^ (Y) ^ (Z) )
-#define I(X,Y,Z) ( (Y) ^ ( (X) | (~(Z))))
-
- A=c->A;
- B=c->B;
- C=c->C;
- D=c->D;
-
-#define ROUND1(a,b,c,d,k,s,i) \
- { zz=(a + F(b,c,d) + x[k] + T[i]); a=b+MD5_ROL(zz,s); }
-
- ROUND1(A,B,C,D,0,7,0);
- ROUND1(D,A,B,C,1,12,1);
- ROUND1(C,D,A,B,2,17,2);
- ROUND1(B,C,D,A,3,22,3);
- ROUND1(A,B,C,D,4,7,4);
- ROUND1(D,A,B,C,5,12,5);
- ROUND1(C,D,A,B,6,17,6);
- ROUND1(B,C,D,A,7,22,7);
- ROUND1(A,B,C,D,8,7,8);
- ROUND1(D,A,B,C,9,12,9);
- ROUND1(C,D,A,B,10,17,10);
- ROUND1(B,C,D,A,11,22,11);
- ROUND1(A,B,C,D,12,7,12);
- ROUND1(D,A,B,C,13,12,13);
- ROUND1(C,D,A,B,14,17,14);
- ROUND1(B,C,D,A,15,22,15);
-
-#define ROUND2(a,b,c,d,k,s,i) \
- { zz=(a + G(b,c,d) + x[k] + T[i]); a = b + MD5_ROL(zz,s); }
-
- ROUND2(A,B,C,D,1,5,16);
- ROUND2(D,A,B,C,6,9,17);
- ROUND2(C,D,A,B,11,14,18);
- ROUND2(B,C,D,A,0,20,19);
- ROUND2(A,B,C,D,5,5,20);
- ROUND2(D,A,B,C,10,9,21);
- ROUND2(C,D,A,B,15,14,22);
- ROUND2(B,C,D,A,4,20,23);
- ROUND2(A,B,C,D,9,5,24);
- ROUND2(D,A,B,C,14,9,25);
- ROUND2(C,D,A,B,3,14,26);
- ROUND2(B,C,D,A,8,20,27);
- ROUND2(A,B,C,D,13,5,28);
- ROUND2(D,A,B,C,2,9,29);
- ROUND2(C,D,A,B,7,14,30);
- ROUND2(B,C,D,A,12,20,31);
-
-#define ROUND3(a,b,c,d,k,s,i) \
- { zz=(a + H(b,c,d) + x[k] + T[i]); a = b + MD5_ROL(zz,s); }
-
- ROUND3(A,B,C,D,5,4,32);
- ROUND3(D,A,B,C,8,11,33);
- ROUND3(C,D,A,B,11,16,34);
- ROUND3(B,C,D,A,14,23,35);
- ROUND3(A,B,C,D,1,4,36);
- ROUND3(D,A,B,C,4,11,37);
- ROUND3(C,D,A,B,7,16,38);
- ROUND3(B,C,D,A,10,23,39);
- ROUND3(A,B,C,D,13,4,40);
- ROUND3(D,A,B,C,0,11,41);
- ROUND3(C,D,A,B,3,16,42);
- ROUND3(B,C,D,A,6,23,43);
- ROUND3(A,B,C,D,9,4,44);
- ROUND3(D,A,B,C,12,11,45);
- ROUND3(C,D,A,B,15,16,46);
- ROUND3(B,C,D,A,2,23,47);
-
-#define ROUND4(a,b,c,d,k,s,i) \
- { zz=(a + I(b,c,d) + x[k] + T[i]); a = b + MD5_ROL(zz,s); }
-
- ROUND4(A,B,C,D,0,6,48);
- ROUND4(D,A,B,C,7,10,49);
- ROUND4(C,D,A,B,14,15,50);
- ROUND4(B,C,D,A,5,21,51);
- ROUND4(A,B,C,D,12,6,52);
- ROUND4(D,A,B,C,3,10,53);
- ROUND4(C,D,A,B,10,15,54);
- ROUND4(B,C,D,A,1,21,55);
- ROUND4(A,B,C,D,8,6,56);
- ROUND4(D,A,B,C,15,10,57);
- ROUND4(C,D,A,B,6,15,58);
- ROUND4(B,C,D,A,13,21,59);
- ROUND4(A,B,C,D,4,6,60);
- ROUND4(D,A,B,C,11,10,61);
- ROUND4(C,D,A,B,2,15,62);
- ROUND4(B,C,D,A,9,21,63);
-
- c->A += A;
- c->B += B;
- c->C += C;
- c->D += D;
-}
-
-void md5_context_hashstream(struct MD5_CONTEXT *c, const void *p, unsigned l)
-{
-const unsigned char *cp=(const unsigned char *)p;
-unsigned ll;
-
- while (l)
- {
- if (c->blk_ptr == 0 && l >= MD5_BLOCK_SIZE)
- {
- md5_context_hash(c, cp);
- cp += MD5_BLOCK_SIZE;
- l -= MD5_BLOCK_SIZE;
- continue;
- }
-
- ll=l;
- if (ll > MD5_BLOCK_SIZE - c->blk_ptr)
- ll=MD5_BLOCK_SIZE - c->blk_ptr;
- memcpy(c->blk + c->blk_ptr, cp, ll);
- c->blk_ptr += ll;
- cp += ll;
- l -= ll;
- if (c->blk_ptr >= MD5_BLOCK_SIZE)
- {
- md5_context_hash(c, c->blk);
- c->blk_ptr=0;
- }
- }
-}
-
-void md5_context_endstream(struct MD5_CONTEXT *c, unsigned long ll)
-{
-unsigned char buf[8];
-
-static unsigned char zero[MD5_BLOCK_SIZE-8];
-MD5_WORD l;
-
- buf[0]=0x80;
- md5_context_hashstream(c, buf, 1);
- while (c->blk_ptr != MD5_BLOCK_SIZE - 8)
- {
- if (c->blk_ptr > MD5_BLOCK_SIZE - 8)
- {
- md5_context_hashstream(c, zero,
- MD5_BLOCK_SIZE - c->blk_ptr);
- continue;
- }
- md5_context_hashstream(c, zero,
- MD5_BLOCK_SIZE - 8 - c->blk_ptr);
- }
-
- l= ll;
-
- l <<= 3;
-
- buf[0]=l;
- l >>= 8;
- buf[1]=l;
- l >>= 8;
- buf[2]=l;
- l >>= 8;
- buf[3]=l;
-
- l= ll;
- l >>= 29;
- buf[4]=l;
- l >>= 8;
- buf[5]=l;
- l >>= 8;
- buf[6]=l;
- l >>= 8;
- buf[7]=l;
-
- md5_context_hashstream(c, buf, 8);
-}
-
-void md5_context_digest(struct MD5_CONTEXT *c, MD5_DIGEST d)
-{
-unsigned char *dp=d;
-MD5_WORD w;
-
-#define PUT(c) (w=(c), *dp++ = w, w >>= 8, *dp++ = w, w >>= 8, *dp++ = w, w >>= 8, *dp++ = w)
-
- PUT(c->A);
- PUT(c->B);
- PUT(c->C);
- PUT(c->D);
-#undef PUT
-}
-
-void md5_context_restore(struct MD5_CONTEXT *c, const MD5_DIGEST d)
-{
-const unsigned char *dp=(unsigned char *)d+MD5_DIGEST_SIZE;
-MD5_WORD w;
-
-#define GET \
- w=*--dp; w=(w << 8) | *--dp; w=(w << 8) | *--dp; w=(w << 8) | *--dp;
-
- GET
- c->D=w;
- GET
- c->C=w;
- GET
- c->B=w;
- GET
- c->A=w;
- c->blk_ptr=0;
-}
-
-void md5_digest(const void *msg, unsigned int len, MD5_DIGEST d)
-{
-struct MD5_CONTEXT c;
-
- md5_context_init(&c);
- md5_context_hashstream(&c, msg, len);
- md5_context_endstream(&c, len);
- md5_context_digest(&c, d);
-}
HCoop / hcoop / debian / courier-authlib.git / blobdiff