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gnupg
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gnupg/g10/g10.c

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/* g10.c - The G10 re-install utility
* 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 "packet.h"
#include "iobuf.h"
#include "memory.h"
#include "util.h"
#include "main.h"
#include "options.h"
#include "keydb.h"
#include "mpi.h"
#include "cipher.h"
#include "filter.h"
static void do_test(int);
const char *
strusage( int level )
{
const char *p;
switch( level ) {
case 10:
case 0: p = "g10 - v" VERSION "; "
"Copyright 1997 Werner Koch (dd9jn)\n" ; break;
case 13: p = "g10"; break;
case 14: p = VERSION; break;
case 1:
case 11: p = "Usage: g10 [options] [files] (-h for help)";
break;
case 2:
case 12: p =
"Syntax: g10 [options] [files]\n"
"sign, check, encrypt or decrypt\n"
"default operation depends on the input data\n"; break;
case 26:
p = "Please report bugs to <g10-bugs@isil.d.shuttle.de>.\n";
break;
case 30: p = ""
#ifndef HAVE_ZLIB_H
" NOTE: This version is compiled without ZLIB support;\n"
" you are not able to process compresssed data!\n"
#endif
#ifdef HAVE_RSA_CIPHER
"WARNING: This version has RSA support! Your are not allowed to\n"
" use it inside the Unites States until Sep 30, 2000!\n"
#endif
;
break;
default: p = default_strusage(level);
}
return p;
}
static void
set_debug(void)
{
if( opt.debug & DBG_MEMORY_VALUE )
memory_debug_mode = 1;
if( opt.debug & DBG_MEMSTAT_VALUE )
memory_stat_debug_mode = 1;
if( opt.debug & DBG_MPI_VALUE )
mpi_debug_mode = 1;
if( opt.debug & DBG_CIPHER_VALUE )
cipher_debug_mode = 1;
if( opt.debug & DBG_IOBUF_VALUE )
iobuf_debug_mode = 1;
}
int
main( int argc, char **argv )
{
static ARGPARSE_OPTS opts[] = {
{ 'a', "armor", 0, "create ascii armored output"},
{ 'v', "verbose", 0, "verbose" },
{ 'z', NULL, 1, "set compress level (0 disables)" },
{ 'b', "batch", 0, "batch mode: never ask" },
{ 'n', "dry-run", 0, "don't make any changes" },
{ 'c', "symmetric", 0, "do only a symmetric encryption" },
{ 'o', "output", 2, "use as output file" },
{ 501, "yes", 0, "assume yes on most questions"},
{ 502, "no", 0, "assume no on most questions"},
{ 503, "gen-key", 0, "generate a new key pair" },
{ 504, "add-key", 0, "add key to the public keyring" },
{ 505, "delete-key",0, "remove key from public keyring" },
{ 506, "sign-key" ,0, "make a signature on a key in the keyring" },
{ 507, "store", 0, "store only" },
{ 508, "check-key" ,0, "check signatures on a key in the keyring" },
{ 509, "keyring" ,2, "add this keyring to the list of keyrings" },
{ 's', "sign", 0, "make a signature"},
{ 'e', "encrypt", 0, "encrypt data" },
{ 'd', "decrypt", 0, "decrypt data (default)" },
/*{ 'c', "check", 0, "check a signature (default)" }, */
{ 'l', "local-user",2, "use this user-id to sign or decrypt" },
{ 'r', "remote-user", 2, "use this user-id for encryption" },
{ 510, "debug" ,4|16, "set debugging flags" },
{ 511, "debug-all" ,0, "enable full debugging"},
{ 512, "cache-all" ,0, "hold everything in memory"},
{ 513, "gen-prime" , 1, "\rgenerate a prime of length n" },
{ 514, "test" , 0, "\rdevelopment usage" },
{0} };
ARGPARSE_ARGS pargs = { &argc, &argv, 0 };
IOBUF a;
int rc;
enum { aNull, aSym, aStore, aEncr, aPrimegen, aKeygen, aSign, aSignEncr,
aTest,
} action = aNull;
const char *fname, *fname_print;
STRLIST sl, remusr= NULL, locusr=NULL;
int nrings=0;
armor_filter_context_t afx;
const char *s;
opt.compress = -1; /* defaults to default compression level */
while( arg_parse( &pargs, opts) ) {
switch( pargs.r_opt ) {
case 'v': opt.verbose++; break;
case 'z':
opt.compress = pargs.r.ret_int;
break;
case 'a': opt.armor = 1; break;
case 'b': opt.batch = 1; break;
case 'c': action = aSym; break;
case 'o': opt.outfile = pargs.r.ret_str;
if( opt.outfile[0] == '-' && !opt.outfile[1] )
opt.outfile_is_stdout = 1;
break;
case 'e': action = action == aSign? aSignEncr : aEncr; break;
case 's': action = action == aEncr? aSignEncr : aSign; break;
case 'l': /* store the local users */
sl = m_alloc( sizeof *sl + strlen(pargs.r.ret_str));
strcpy(sl->d, pargs.r.ret_str);
sl->next = locusr;
locusr = sl;
break;
case 'r': /* store the remote users */
sl = m_alloc( sizeof *sl + strlen(pargs.r.ret_str));
strcpy(sl->d, pargs.r.ret_str);
sl->next = remusr;
remusr = sl;
break;
case 501: opt.answer_yes = 1; break;
case 502: opt.answer_no = 1; break;
case 503: action = aKeygen; break;
case 507: action = aStore; break;
case 508: opt.check_sigs = 1; break;
case 509: add_keyring(pargs.r.ret_str); nrings++; break;
case 510: opt.debug |= pargs.r.ret_ulong; break;
case 511: opt.debug = ~0; break;
case 512: opt.cache_all = 1; break;
case 513: action = aPrimegen; break;
case 514: action = aTest; break;
default : pargs.err = 2; break;
}
}
set_debug();
if( opt.verbose > 1 )
set_packet_list_mode(1);
if( !opt.batch && *(s=strusage(10)) )
fputs(s, stderr);
if( !opt.batch && *(s=strusage(30)) )
fputs(s, stderr);
if( !nrings ) { /* add default rings */
add_keyring("../keys/ring.pgp");
add_keyring("../keys/pubring.g10");
}
if( argc ) {
fname_print = fname = *argv;
}
else {
fname_print = "[stdin]";
fname = NULL;
}
switch( action ) {
case aStore: /* only store the file */
if( argc > 1 )
usage(1);
if( (rc = encode_store(fname)) )
log_error("encode_store('%s'): %s\n",
fname_print, g10_errstr(rc) );
break;
case aSym: /* encrypt the given file only with the symmetric cipher */
if( argc > 1 )
usage(1);
if( (rc = encode_symmetric(fname)) )
log_error("encode_symmetric('%s'): %s\n", fname_print, g10_errstr(rc) );
break;
case aEncr: /* encrypt the given file */
if( argc > 1 )
usage(1);
if( (rc = encode_crypt(fname,remusr)) )
log_error("encode_crypt('%s'): %s\n", fname_print, g10_errstr(rc) );
break;
case aSign: /* sign the given file */
if( argc > 1 )
usage(1);
if( (rc = sign_file(fname, 0, locusr)) )
log_error("sign_file('%s'): %s\n", fname_print, g10_errstr(rc) );
break;
case aSignEncr: /* sign and encrypt the given file */
usage(1); /* FIXME */
break;
case aPrimegen:
if( argc )
usage(1);
mpi_print( stdout, generate_public_prime( pargs.r.ret_int ), 1);
putchar('\n');
break;
case aKeygen: /* generate a key (interactive) */
if( argc )
usage(1);
generate_keypair();
break;
case aTest: do_test( atoi(*argv) ); break;
default:
if( argc > 1 )
usage(1);
if( !(a = iobuf_open(fname)) )
log_fatal("can't open '%s'\n", fname_print);
/* push the armor filter, so it can peek at the input data */
memset( &afx, 0, sizeof afx);
iobuf_push_filter( a, armor_filter, &afx );
proc_packets( a );
iobuf_close(a);
break;
}
/* cleanup */
FREE_STRLIST(remusr);
FREE_STRLIST(locusr);
return 0;
}
static void
do_test(int times)
{
MPI t = mpi_alloc( 50 );
MPI m = mpi_alloc( 50 );
MPI a = mpi_alloc( 50 );
MPI b = mpi_alloc( 50 );
MPI p = mpi_alloc( 50 );
MPI x = mpi_alloc( 50 );
/* output = b/(a^x) mod p */
log_debug("invm %d times ", times);
for( ; times > 0; times -- ) {
mpi_fromstr(a, "0xef45678343589854354a4545545454554545455"
"aaaaaaaaaaaaa44444fffdecb33434343443331" );
mpi_fromstr(b, "0x8765765589854354a4545545454554545455"
"aaaaaaa466577778decb36666343443331" );
mpi_invm( t, a, b );
fputc('.', stderr); fflush(stderr);
}
m_check(NULL);
}
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