133 строки
3.9 KiB
C
133 строки
3.9 KiB
C
/* testapi.c - for libgcrypt
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* Copyright (C) 2000, 2002 Free Software Foundation, Inc.
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*
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* This file is part of Libgcrypt.
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*
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* Libgcrypt is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser general Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* Libgcrypt is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <gcrypt.h>
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#define PGM "testapi"
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#include "t-common.h"
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#define BUG() do {fprintf ( stderr, "Ooops at %s:%d\n", __FILE__ , __LINE__ );\
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exit(2);} while(0)
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/* an ElGamal public key */
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struct {
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const char *p,*g,*y;
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} elg_testkey1 = {
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"0x9D559F31A6D30492C383213844AEBB7772963A85D3239F3611AAB93A2A985F64FB735B9259EC326BF5720F909980D609D37C288C9223B0350FBE493C3B5AF54CA23031E952E92F8A3DBEDBC5A684993D452CD54F85B85160166FCD25BD7AB6AE9B1EB4FCC9D300DAFF081C4CBA6694906D3E3FF18196A5CCF7F0A6182962166B",
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"0x5",
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"0x9640024BB2A277205813FF685048AA27E2B192B667163E7C59E381E27003D044C700C531CE8FD4AA781B463BC9FFE74956AF09A38A098322B1CF72FC896F009E3A6BFF053D3B1D1E1994BF9CC07FA12963D782F027B51511DDE8C5F43421FBC12734A9C070F158C729A370BEE5FC51A772219438EDA8202C35FA3F5D8CD1997B"
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};
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void
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test_sexp ( int argc, char **argv )
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{
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int rc, nbits;
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gcry_sexp_t sexp;
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gcry_mpi_t key[3];
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size_t n;
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char *buf;
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(void)argc;
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(void)argv;
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if ( gcry_mpi_scan( &key[0], GCRYMPI_FMT_HEX, elg_testkey1.p, 0, NULL ) )
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BUG();
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if ( gcry_mpi_scan( &key[1], GCRYMPI_FMT_HEX, elg_testkey1.g, 0, NULL ) )
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BUG();
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if ( gcry_mpi_scan( &key[2], GCRYMPI_FMT_HEX, elg_testkey1.y, 0, NULL ) )
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BUG();
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/* get nbits from a key */
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rc = gcry_sexp_build ( &sexp, NULL,
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"(public-key(elg(p%m)(g%m)(y%m)))",
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key[0], key[1], key[2] );
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fprintf (stderr, "DUMP of PK (rc=%d):\n", rc);
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gcry_sexp_dump ( sexp );
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{ gcry_sexp_t x;
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x = gcry_sexp_cdr ( sexp );
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fputs ( "DUMP of CDR:\n", stderr );
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gcry_sexp_dump ( x );
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gcry_sexp_release ( x );
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}
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nbits = gcry_pk_get_nbits( sexp );
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printf ( "elg_testkey1 - nbits=%d\n", nbits );
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n = gcry_sexp_sprint ( sexp, 0, NULL, 0 );
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buf = gcry_xmalloc ( n );
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n = gcry_sexp_sprint ( sexp, 0, buf, n );
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printf ( "sprint length=%u\n", (unsigned int)n );
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gcry_free ( buf );
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gcry_sexp_release( sexp );
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}
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void
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test_genkey ( int argc, char **argv )
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{
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int rc, nbits = 1024;
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gcry_sexp_t s_parms, s_key;
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(void)argc;
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(void)argv;
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xgcry_control ( (GCRYCTL_INIT_SECMEM, 16384, 0) );
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rc = gcry_sexp_build ( &s_parms, NULL, "(genkey(dsa(nbits %d)))", nbits );
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rc = gcry_pk_genkey( &s_key, s_parms );
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if ( rc ) {
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fprintf ( stderr, "genkey failed: %s\n", gpg_strerror (rc) );
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return;
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}
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gcry_sexp_release( s_parms );
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gcry_sexp_dump ( s_key );
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gcry_sexp_release( s_key );
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}
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int
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main( int argc, char **argv )
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{
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const char *s;
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if ( argc < 2 )
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{
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s = gcry_check_version (NULL);
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printf("%s\n", s? s : "(null)");
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}
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else if ( !strcmp ( argv[1], "version") )
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{
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s = gcry_check_version (argc > 2 ? argv[2] : NULL );
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printf("%s\n", s? s : "(null)");
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}
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else if ( !strcmp ( argv[1], "sexp" ) )
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test_sexp ( argc-2, argv+2 );
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else if ( !strcmp ( argv[1], "genkey" ) )
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test_genkey ( argc-2, argv+2 );
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else {
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fprintf (stderr, "usage: testapi mode-string [mode-args]\n");
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return 1;
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}
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return 0;
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}
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