src/sha.c

changeset 6986
40613e58e3d6
parent 6985
7600c07510d4
child 6987
1dd7385875c6
--- a/src/sha.c	Sat Sep 27 23:42:22 2003 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,206 +0,0 @@
-/* 
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- * 
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- * 
- * The Original Code is SHA 180-1 Reference Implementation (Compact version)
- * 
- * The Initial Developer of the Original Code is Paul Kocher of
- * Cryptography Research.  Portions created by Paul Kocher are 
- * Copyright (C) 1995-9 by Cryptography Research, Inc.  All
- * Rights Reserved.
- * 
- * Contributor(s):
- *
- */
-
-#include "sha.h"
-#include "string.h"
-#include "stdio.h"
-
-#ifdef _WIN32
-#include "win32dep.h"
-#endif
-
-typedef struct {
-	unsigned long H[5];
-	unsigned long W[80];
-	int lenW;
-	unsigned long sizeHi, sizeLo;
-} j_SHA_CTX;
-
-static void shaHashBlock(j_SHA_CTX *ctx);
-
-void shaInit(j_SHA_CTX *ctx) {
-  int i;
-
-  ctx->lenW = 0;
-  ctx->sizeHi = ctx->sizeLo = 0;
-
-  /* Initialize H with the magic constants (see FIPS180 for constants)
-   */
-  ctx->H[0] = 0x67452301L;
-  ctx->H[1] = 0xefcdab89L;
-  ctx->H[2] = 0x98badcfeL;
-  ctx->H[3] = 0x10325476L;
-  ctx->H[4] = 0xc3d2e1f0L;
-
-  for (i = 0; i < 80; i++)
-    ctx->W[i] = 0;
-}
-
-
-void shaUpdate(j_SHA_CTX *ctx, unsigned char *dataIn, int len) {
-  int i;
-
-  /* Read the data into W and process blocks as they get full
-   */
-  for (i = 0; i < len; i++) {
-    ctx->W[ctx->lenW / 4] <<= 8;
-    ctx->W[ctx->lenW / 4] |= (unsigned long)dataIn[i];
-    if ((++ctx->lenW) % 64 == 0) {
-      shaHashBlock(ctx);
-      ctx->lenW = 0;
-    }
-    ctx->sizeLo += 8;
-    ctx->sizeHi += (ctx->sizeLo < 8);
-  }
-}
-
-
-void shaFinal(j_SHA_CTX *ctx, unsigned char hashout[20]) {
-  unsigned char pad0x80 = 0x80;
-  unsigned char pad0x00 = 0x00;
-  unsigned char padlen[8];
-  int i;
-
-  /* Pad with a binary 1 (e.g. 0x80), then zeroes, then length
-   */
-  padlen[0] = (unsigned char)((ctx->sizeHi >> 24) & 255);
-  padlen[1] = (unsigned char)((ctx->sizeHi >> 16) & 255);
-  padlen[2] = (unsigned char)((ctx->sizeHi >> 8) & 255);
-  padlen[3] = (unsigned char)((ctx->sizeHi >> 0) & 255);
-  padlen[4] = (unsigned char)((ctx->sizeLo >> 24) & 255);
-  padlen[5] = (unsigned char)((ctx->sizeLo >> 16) & 255);
-  padlen[6] = (unsigned char)((ctx->sizeLo >> 8) & 255);
-  padlen[7] = (unsigned char)((ctx->sizeLo >> 0) & 255);
-  shaUpdate(ctx, &pad0x80, 1);
-  while (ctx->lenW != 56)
-    shaUpdate(ctx, &pad0x00, 1);
-  shaUpdate(ctx, padlen, 8);
-
-  /* Output hash
-   */
-  for (i = 0; i < 20; i++) {
-    hashout[i] = (unsigned char)(ctx->H[i / 4] >> 24);
-    ctx->H[i / 4] <<= 8;
-  }
-
-  /*
-   *  Re-initialize the context (also zeroizes contents)
-   */
-  shaInit(ctx); 
-}
-
-
-void shaBlock(unsigned char *dataIn, int len, unsigned char hashout[20]) {
-  j_SHA_CTX ctx;
-
-  shaInit(&ctx);
-  shaUpdate(&ctx, dataIn, len);
-  shaFinal(&ctx, hashout);
-}
-
-
-#define SHA_ROTL(X,n) ((((X) << (n)) | ((X) >> (32-(n)))) & 0xffffffffL)
-
-static void shaHashBlock(j_SHA_CTX *ctx) {
-  int t;
-  unsigned long A,B,C,D,E,TEMP;
-
-  for (t = 16; t <= 79; t++)
-    ctx->W[t] =
-      SHA_ROTL(ctx->W[t-3] ^ ctx->W[t-8] ^ ctx->W[t-14] ^ ctx->W[t-16], 1);
-
-  A = ctx->H[0];
-  B = ctx->H[1];
-  C = ctx->H[2];
-  D = ctx->H[3];
-  E = ctx->H[4];
-
-  for (t = 0; t <= 19; t++) {
-    TEMP = (SHA_ROTL(A,5) + (((C^D)&B)^D)     + E + ctx->W[t] + 0x5a827999L) & 0xffffffffL;
-    E = D; D = C; C = SHA_ROTL(B, 30); B = A; A = TEMP;
-  }
-  for (t = 20; t <= 39; t++) {
-    TEMP = (SHA_ROTL(A,5) + (B^C^D)           + E + ctx->W[t] + 0x6ed9eba1L) & 0xffffffffL;
-    E = D; D = C; C = SHA_ROTL(B, 30); B = A; A = TEMP;
-  }
-  for (t = 40; t <= 59; t++) {
-    TEMP = (SHA_ROTL(A,5) + ((B&C)|(D&(B|C))) + E + ctx->W[t] + 0x8f1bbcdcL) & 0xffffffffL;
-    E = D; D = C; C = SHA_ROTL(B, 30); B = A; A = TEMP;
-  }
-  for (t = 60; t <= 79; t++) {
-    TEMP = (SHA_ROTL(A,5) + (B^C^D)           + E + ctx->W[t] + 0xca62c1d6L) & 0xffffffffL;
-    E = D; D = C; C = SHA_ROTL(B, 30); B = A; A = TEMP;
-  }
-
-  ctx->H[0] += A;
-  ctx->H[1] += B;
-  ctx->H[2] += C;
-  ctx->H[3] += D;
-  ctx->H[4] += E;
-}
-
-/*----------------------------------------------------------------------------
- *
- * This code added by Thomas "temas" Muldowney for Jabber compatability
- *
- *---------------------------------------------------------------------------*/
-char *shahash(char *str)
-{
-    static char final[41];
-    char *pos;
-    unsigned char hashval[20];
-    int x;
-
-    if(!str || strlen(str) == 0)
-        return NULL;
-
-    shaBlock((unsigned char *)str, strlen(str), hashval);
-
-    pos = final;
-    for(x=0;x<20;x++)
-    {
-        snprintf(pos, 3, "%02x", hashval[x]);
-        pos += 2;
-    }
-    return (char *)final;
-}
-
-void shahash_r(const char* str, char hashbuf[41])
-{
-    int x;
-    char *pos;
-    unsigned char hashval[20];
-    
-    if(!str || strlen(str) == 0)
-        return;
-
-    shaBlock((unsigned char *)str, strlen(str), hashval);
-
-    pos = hashbuf;
-    for(x=0;x<20;x++)
-    {
-        snprintf(pos, 3, "%02x", hashval[x]);
-        pos += 2;
-    }
-
-    return;
-}

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