/* x509spki.c */

 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL

  * project 1999.

  */

 /* ====================================================================

  * Copyright (c) 1999 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

  *    licensing@OpenSSL.org.

  *

  * 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,

  * 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 product includes cryptographic software written by Eric Young

  * (eay@cryptsoft.com).  This product includes software written by Tim

  * Hudson (tjh@cryptsoft.com).

  *

  */

 #include <stdio.h>

 #include "cryptlib.h"

 #include <openssl/x509.h>

 EXPORT_C int NETSCAPE_SPKI_set_pubkey(NETSCAPE_SPKI *x, EVP_PKEY *pkey)

 {

 	if ((x == NULL) || (x->spkac == NULL)) return(0);

 	return(X509_PUBKEY_set(&(x->spkac->pubkey),pkey));

 }

 EXPORT_C EVP_PKEY *NETSCAPE_SPKI_get_pubkey(NETSCAPE_SPKI *x)

 {

 	if ((x == NULL) || (x->spkac == NULL))

 		return(NULL);

 	return(X509_PUBKEY_get(x->spkac->pubkey));

 }

 /* Load a Netscape SPKI from a base64 encoded string */

 EXPORT_C NETSCAPE_SPKI * NETSCAPE_SPKI_b64_decode(const char *str, int len)

 {

 	unsigned char *spki_der;

 	const unsigned char *p;

 	int spki_len;

 	NETSCAPE_SPKI *spki;

 	if(len <= 0) len = strlen(str);

 	if (!(spki_der = OPENSSL_malloc(len + 1))) {

 		X509err(X509_F_NETSCAPE_SPKI_B64_DECODE, ERR_R_MALLOC_FAILURE);

 		return NULL;

 	}

 	spki_len = EVP_DecodeBlock(spki_der, (const unsigned char *)str, len);

 	if(spki_len < 0) {

 		X509err(X509_F_NETSCAPE_SPKI_B64_DECODE,

 						X509_R_BASE64_DECODE_ERROR);

 		OPENSSL_free(spki_der);

 		return NULL;

 	}

 	p = spki_der;

 	spki = d2i_NETSCAPE_SPKI(NULL, &p, spki_len);

 	OPENSSL_free(spki_der);

 	return spki;

 }

 /* Generate a base64 encoded string from an SPKI */

 EXPORT_C char * NETSCAPE_SPKI_b64_encode(NETSCAPE_SPKI *spki)

 {

 	unsigned char *der_spki, *p;

 	char *b64_str;

 	int der_len;

 	der_len = i2d_NETSCAPE_SPKI(spki, NULL);

 	der_spki = OPENSSL_malloc(der_len);

 	b64_str = OPENSSL_malloc(der_len * 2);

 	if(!der_spki || !b64_str) {

 		X509err(X509_F_NETSCAPE_SPKI_B64_ENCODE, ERR_R_MALLOC_FAILURE);

 		return NULL;

 	}

 	p = der_spki;

 	i2d_NETSCAPE_SPKI(spki, &p);

 	EVP_EncodeBlock((unsigned char *)b64_str, der_spki, der_len);

 	OPENSSL_free(der_spki);

 	return b64_str;

 }