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/*
** Copyright 2001-2008 Double Precision, Inc.
** See COPYING for distribution information.
*/
#define SHA1_INTERNAL
#include "sha1.h"
#include <string.h>
static const char base64tab[]=
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
const char *sha1_hash(const char *passw)
{
SHA1_DIGEST sha1buf;
static char hash_buffer[1+(sizeof(sha1buf)+2)/3*4];
int a=0,b=0,c=0;
int i, j;
int d, e, f, g;
sha1_digest(passw, strlen(passw), sha1buf);
j=0;
for (i=0; i<sizeof(sha1buf); i += 3)
{
a=sha1buf[i];
b= i+1 < sizeof(sha1buf) ? sha1buf[i+1]:0;
c= i+2 < sizeof(sha1buf) ? sha1buf[i+2]:0;
d=base64tab[ a >> 2 ];
e=base64tab[ ((a & 3 ) << 4) | (b >> 4)];
f=base64tab[ ((b & 15) << 2) | (c >> 6)];
g=base64tab[ c & 63 ];
if (i + 1 >= sizeof(sha1buf)) f='=';
if (i + 2 >= sizeof(sha1buf)) g='=';
hash_buffer[j++]=d;
hash_buffer[j++]=e;
hash_buffer[j++]=f;
hash_buffer[j++]=g;
}
hash_buffer[j]=0;
return (hash_buffer);
}
const char *ssha_hash(const char *passw, SSHA_RAND seed)
{
unsigned char sha1buf[sizeof(SHA1_DIGEST)+sizeof(SSHA_RAND)];
static char hash_buffer[1+(sizeof(sha1buf)+2)/3*4];
int a=0,b=0,c=0;
int i, j;
int d, e, f, g;
struct SHA1_CONTEXT ctx;
sha1_context_init( &ctx );
sha1_context_hashstream(&ctx, passw, strlen(passw));
sha1_context_hashstream(&ctx, seed, sizeof(SSHA_RAND));
sha1_context_endstream(&ctx, strlen(passw)+sizeof(SSHA_RAND));
sha1_context_digest( &ctx, sha1buf );
for(i=0; i<sizeof(SSHA_RAND); i++)
{
sha1buf[sizeof(SHA1_DIGEST)+i] = seed[i];
}
j=0;
for (i=0; i<sizeof(sha1buf); i += 3)
{
a=sha1buf[i];
b= i+1 < sizeof(sha1buf) ? sha1buf[i+1]:0;
c= i+2 < sizeof(sha1buf) ? sha1buf[i+2]:0;
d=base64tab[ a >> 2 ];
e=base64tab[ ((a & 3 ) << 4) | (b >> 4)];
f=base64tab[ ((b & 15) << 2) | (c >> 6)];
g=base64tab[ c & 63 ];
if (i + 1 >= sizeof(sha1buf)) f='=';
if (i + 2 >= sizeof(sha1buf)) g='=';
hash_buffer[j++]=d;
hash_buffer[j++]=e;
hash_buffer[j++]=f;
hash_buffer[j++]=g;
}
hash_buffer[j]=0;
return (hash_buffer);
}
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