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Diffstat (limited to 'tools/bftest.c')
-rw-r--r-- | tools/bftest.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/tools/bftest.c b/tools/bftest.c new file mode 100644 index 000000000..bbfcd5dd1 --- /dev/null +++ b/tools/bftest.c @@ -0,0 +1,85 @@ +/* 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; +} + |