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testapi.c
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testapi.c
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/* testapi.c - for libgcrypt
* Copyright (C) 2000, 2002 Free Software Foundation, Inc.
*
* This file is part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser general Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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 <stdio.h>
#include <stdlib.h>
#include <gcrypt.h>
#define BUG() do {fprintf ( stderr, "Ooops at %s:%d\n", __FILE__ , __LINE__ );\
exit(2);} while(0)
/* an ElGamal public key */
struct {
const char *p,*g,*y;
} elg_testkey1 = {
"0x9D559F31A6D30492C383213844AEBB7772963A85D3239F3611AAB93A2A985F64FB735B9259EC326BF5720F909980D609D37C288C9223B0350FBE493C3B5AF54CA23031E952E92F8A3DBEDBC5A684993D452CD54F85B85160166FCD25BD7AB6AE9B1EB4FCC9D300DAFF081C4CBA6694906D3E3FF18196A5CCF7F0A6182962166B",
"0x5",
"0x9640024BB2A277205813FF685048AA27E2B192B667163E7C59E381E27003D044C700C531CE8FD4AA781B463BC9FFE74956AF09A38A098322B1CF72FC896F009E3A6BFF053D3B1D1E1994BF9CC07FA12963D782F027B51511DDE8C5F43421FBC12734A9C070F158C729A370BEE5FC51A772219438EDA8202C35FA3F5D8CD1997B"
};
void
test_sexp ( int argc, char **argv )
{
int rc, nbits;
gcry_sexp_t sexp;
gcry_mpi_t key[3];
size_t n;
char *buf;
(void)argc;
(void)argv;
if ( gcry_mpi_scan( &key[0], GCRYMPI_FMT_HEX, elg_testkey1.p, 0, NULL ) )
BUG();
if ( gcry_mpi_scan( &key[1], GCRYMPI_FMT_HEX, elg_testkey1.g, 0, NULL ) )
BUG();
if ( gcry_mpi_scan( &key[2], GCRYMPI_FMT_HEX, elg_testkey1.y, 0, NULL ) )
BUG();
/* get nbits from a key */
rc = gcry_sexp_build ( &sexp, NULL,
"(public-key(elg(p%m)(g%m)(y%m)))",
key[0], key[1], key[2] );
fprintf (stderr, "DUMP of PK (rc=%d):\n", rc);
gcry_sexp_dump ( sexp );
{ gcry_sexp_t x;
x = gcry_sexp_cdr ( sexp );
fputs ( "DUMP of CDR:\n", stderr );
gcry_sexp_dump ( x );
gcry_sexp_release ( x );
}
nbits = gcry_pk_get_nbits( sexp );
printf ( "elg_testkey1 - nbits=%d\n", nbits );
n = gcry_sexp_sprint ( sexp, 0, NULL, 0 );
buf = gcry_xmalloc ( n );
n = gcry_sexp_sprint ( sexp, 0, buf, n );
printf ( "sprint length=%u\n", (unsigned int)n );
gcry_free ( buf );
gcry_sexp_release( sexp );
}
void
test_genkey ( int argc, char **argv )
{
int rc, nbits = 1024;
gcry_sexp_t s_parms, s_key;
(void)argc;
(void)argv;
gcry_control( GCRYCTL_INIT_SECMEM, 16384, 0 );
rc = gcry_sexp_build ( &s_parms, NULL, "(genkey(dsa(nbits %d)))", nbits );
rc = gcry_pk_genkey( &s_key, s_parms );
if ( rc ) {
fprintf ( stderr, "genkey failed: %s\n", gpg_strerror (rc) );
return;
}
gcry_sexp_release( s_parms );
gcry_sexp_dump ( s_key );
gcry_sexp_release( s_key );
}
int
main( int argc, char **argv )
{
const char *s;
if ( argc < 2 )
{
s = gcry_check_version (NULL);
printf("%s\n", s? s : "(null)");
}
else if ( !strcmp ( argv[1], "version") )
{
s = gcry_check_version (argc > 2 ? argv[2] : NULL );
printf("%s\n", s? s : "(null)");
}
else if ( !strcmp ( argv[1], "sexp" ) )
test_sexp ( argc-2, argv+2 );
else if ( !strcmp ( argv[1], "genkey" ) )
test_genkey ( argc-2, argv+2 );
else {
fprintf (stderr, "usage: testapi mode-string [mode-args]\n");
return 1;
}
return 0;
}

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