/* rsa_asn1.c */
/* Written by Dr Stephen N Henson ([email protected]) for the OpenSSL
 * project 2000.
 */
/* ====================================================================
 * Copyright (c) 2000 The OpenSSL Project.  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 acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    [email protected].
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * 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 product includes cryptographic software written by Eric Young
 * ([email protected]).  This product includes software written by Tim
 * Hudson ([email protected]).
 *
 */

#include <stdio.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/asn1t.h>

static ASN1_METHOD method={
        (I2D_OF(void))     i2d_RSAPrivateKey,
        (D2I_OF(void))     d2i_RSAPrivateKey,
        (void *(*)(void))  RSA_new,
        (void (*)(void *)) RSA_free};

ASN1_METHOD *RSAPrivateKey_asn1_meth(void)
	{
	return(&method);
	}

/* Override the default free and new methods */
static int rsa_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
{
	if(operation == ASN1_OP_NEW_PRE) {
		*pval = (ASN1_VALUE *)RSA_new();
		if(*pval) return 2;
		return 0;
	} else if(operation == ASN1_OP_FREE_PRE) {
		RSA_free((RSA *)*pval);
		*pval = NULL;
		return 2;
	}
	return 1;
}

ASN1_SEQUENCE_cb(RSAPrivateKey, rsa_cb) = {
	ASN1_SIMPLE(RSA, version, LONG),
	ASN1_SIMPLE(RSA, n, BIGNUM),
	ASN1_SIMPLE(RSA, e, BIGNUM),
	ASN1_SIMPLE(RSA, d, BIGNUM),
	ASN1_SIMPLE(RSA, p, BIGNUM),
	ASN1_SIMPLE(RSA, q, BIGNUM),
	ASN1_SIMPLE(RSA, dmp1, BIGNUM),
	ASN1_SIMPLE(RSA, dmq1, BIGNUM),
	ASN1_SIMPLE(RSA, iqmp, BIGNUM)
} ASN1_SEQUENCE_END_cb(RSA, RSAPrivateKey)


ASN1_SEQUENCE_cb(RSAPublicKey, rsa_cb) = {
	ASN1_SIMPLE(RSA, n, BIGNUM),
	ASN1_SIMPLE(RSA, e, BIGNUM),
} ASN1_SEQUENCE_END_cb(RSA, RSAPublicKey)

IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(RSA, RSAPrivateKey, RSAPrivateKey)

IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(RSA, RSAPublicKey, RSAPublicKey)

RSA *RSAPublicKey_dup(RSA *rsa)
	{
	return ASN1_item_dup(ASN1_ITEM_rptr(RSAPublicKey), rsa);
	}

RSA *RSAPrivateKey_dup(RSA *rsa)
	{
	return ASN1_item_dup(ASN1_ITEM_rptr(RSAPrivateKey), rsa);
	}