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/* bftest.c - Blowfish test program
* Copyright (c) 1997 by Werner Koch (dd9jn)
*
* This file is part of G10.
*
* G10 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.
*
* G10 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.
*
* You should have received a copy of the GNU 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 <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "util.h"
#include "blowfish.h"
static void
my_usage(void)
{
fprintf(stderr, "usage: bftest [-e][-d] key\n");
exit(1);
}
const char *
strusage( int level )
{
return default_strusage(level);
}
int
main(int argc, char **argv)
{
int encode=0;
BLOWFISH_context ctx;
char buf[100];
char iv[BLOWFISH_BLOCKSIZE];
int n, size=8;
if( argc > 1 && !strcmp(argv[1], "-e") ) {
encode++;
argc--; argv++;
}
else if( argc > 1 && !strcmp(argv[1], "-E") ) {
encode++;
argc--; argv++;
size = 10;
}
else if( argc > 1 && !strcmp(argv[1], "-d") ) {
argc--; argv++;
}
else if( argc > 1 && !strcmp(argv[1], "-D") ) {
argc--; argv++;
size = 10;
}
if( argc != 2 )
my_usage();
argc--; argv++;
blowfish_setkey( &ctx, *argv, strlen(*argv) );
memset(iv,0, BLOWFISH_BLOCKSIZE);
blowfish_setiv( &ctx, iv );
while( (n = fread( buf, 1, size, stdin )) > 0 ) {
if( encode )
blowfish_encode_cfb( &ctx, buf, buf, n );
else
blowfish_decode_cfb( &ctx, buf, buf, n );
if( fwrite( buf, 1, n, stdout) != n )
log_fatal("write error\n");
}
return 0;
}

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