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/* $OpenBSD: rsakeygen.c,v 1.12 2001/01/27 11:24:43 niklas Exp $ */
/* $EOM: rsakeygen.c,v 1.10 2000/12/21 15:18:53 ho Exp $ */
/*
* Copyright (c) 1998, 1999 Niels Provos. All rights reserved.
* Copyright (c) 1999 Niklas Hallqvist. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Ericsson Radio Systems.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This code was written under funding by Ericsson Radio Systems.
*/
#include <sys/param.h>
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "libcrypto.h"
#include "log.h"
#include "math_mp.h"
#define nibble2bin(y) (tolower (y) < 'a' ? (y) - '0' : tolower (y) - 'a' + 10)
#define hexchar2bin(x) ((nibble2bin ((x)[0]) << 4) + nibble2bin ((x)[1]))
#define nibble2c(x) ((x) >= 10 ? ('a' - 10 + (x)) : ('0' + (x)))
#define TEST_STRING "!Dies ist ein Test"
void asc2bin (u_int8_t *bin, u_int8_t *asc, u_int16_t len)
{
int i;
for (i = 0; i < len; i += 2, asc += 2)
*bin++ = hexchar2bin (asc);
}
int
main (void)
{
u_int8_t enc[256], dec[256], *asn, *foo;
int len;
FILE *fd;
int erg = 0;
RSA *key;
libcrypto_init ();
#ifndef USE_LIBCRYPTO
if (!libcrypto)
{
fprintf (stderr, "I did not find the RSA support, giving up...");
exit (1);
}
#endif
log_debug_cmd (LOG_CRYPTO, 99);
memset (dec, '\0', sizeof dec);
strcpy (dec, TEST_STRING);
key = LC (RSA_generate_key, (1024, RSA_F4, NULL, NULL));
if (key == NULL)
{
printf("Failed to generate key\n");
return 0;
}
printf ("n: 0x");
LC (BN_print_fp, (stdout, key->n));
printf ("\ne: 0x");
LC (BN_print_fp, (stdout, key->e));
printf ("\n");
printf ("n: 0x");
LC (BN_print_fp, (stdout, key->n));
printf ("\ne: 0x");
LC (BN_print_fp, (stdout, key->e));
printf ("\nd: 0x");
LC (BN_print_fp, (stdout, key->d));
printf ("\np: 0x");
LC (BN_print_fp, (stdout, key->p));
printf ("\nq: 0x");
LC (BN_print_fp, (stdout, key->q));
printf ("\n");
printf ("Testing Signing/Verifying: ");
/* Sign with Private Key */
len = LC (RSA_private_encrypt, (strlen (dec) + 1, dec, enc, key,
RSA_PKCS1_PADDING));
if (len == -1)
printf ("SIGN FAILED ");
else
{
/* Decrypt/Verify with Public Key */
erg = LC (RSA_public_decrypt, (len, enc, dec, key, RSA_PKCS1_PADDING));
if (erg == -1 || strcmp (dec, TEST_STRING))
printf ("VERIFY FAILED");
else
printf ("OKAY");
}
printf ("\n");
len = LC (i2d_RSAPublicKey, (key, NULL));
foo = asn = malloc (len);
len = LC (i2d_RSAPublicKey, (key, &foo));
fd = fopen ("isakmpd_key.pub", "w");
fwrite (asn, len, 1, fd);
fclose (fd);
free (asn);
len = LC (i2d_RSAPrivateKey, (key, NULL));
foo = asn = malloc (len);
len = LC (i2d_RSAPrivateKey, (key, &foo));
fd = fopen ("isakmpd_key", "w");
fwrite (asn, len, 1, fd);
fclose (fd);
free (asn);
LC (RSA_free, (key));
return 1;
}
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