1 /* x509spki.c */

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

     3  * project 1999.

     4  */

     5 /* ====================================================================

     6  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.

     7  *

     8  * Redistribution and use in source and binary forms, with or without

     9  * modification, are permitted provided that the following conditions

    10  * are met:

    11  *

    12  * 1. Redistributions of source code must retain the above copyright

    13  *    notice, this list of conditions and the following disclaimer. 

    14  *

    15  * 2. Redistributions in binary form must reproduce the above copyright

    16  *    notice, this list of conditions and the following disclaimer in

    17  *    the documentation and/or other materials provided with the

    18  *    distribution.

    19  *

    20  * 3. All advertising materials mentioning features or use of this

    21  *    software must display the following acknowledgment:

    22  *    "This product includes software developed by the OpenSSL Project

    23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"

    24  *

    25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

    26  *    endorse or promote products derived from this software without

    27  *    prior written permission. For written permission, please contact

    28  *    licensing@OpenSSL.org.

    29  *

    30  * 5. Products derived from this software may not be called "OpenSSL"

    31  *    nor may "OpenSSL" appear in their names without prior written

    32  *    permission of the OpenSSL Project.

    33  *

    34  * 6. Redistributions of any form whatsoever must retain the following

    35  *    acknowledgment:

    36  *    "This product includes software developed by the OpenSSL Project

    37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"

    38  *

    39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

    40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR

    43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

    44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

    45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

    46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

    47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

    48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

    50  * OF THE POSSIBILITY OF SUCH DAMAGE.

    51  * ====================================================================

    52  *

    53  * This product includes cryptographic software written by Eric Young

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

    55  * Hudson (tjh@cryptsoft.com).

    56  *

    57  */

    58 

    59 #include <stdio.h>

    60 #include "cryptlib.h"

    61 #include <openssl/x509.h>

    62 

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

    64 {

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

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

    67 }

    68 

    69 EXPORT_C EVP_PKEY *NETSCAPE_SPKI_get_pubkey(NETSCAPE_SPKI *x)

    70 {

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

    72 		return(NULL);

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

    74 }

    75 

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

    77 

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

    79 {

    80 	unsigned char *spki_der;

    81 	const unsigned char *p;

    82 	int spki_len;

    83 	NETSCAPE_SPKI *spki;

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

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

    86 		X509err(X509_F_NETSCAPE_SPKI_B64_DECODE, ERR_R_MALLOC_FAILURE);

    87 		return NULL;

    88 	}

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

    90 	if(spki_len < 0) {

    91 		X509err(X509_F_NETSCAPE_SPKI_B64_DECODE,

    92 						X509_R_BASE64_DECODE_ERROR);

    93 		OPENSSL_free(spki_der);

    94 		return NULL;

    95 	}

    96 	p = spki_der;

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

    98 	OPENSSL_free(spki_der);

    99 	return spki;

   100 }

   101 

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

   103 

   104 EXPORT_C char * NETSCAPE_SPKI_b64_encode(NETSCAPE_SPKI *spki)

   105 {

   106 	unsigned char *der_spki, *p;

   107 	char *b64_str;

   108 	int der_len;

   109 	der_len = i2d_NETSCAPE_SPKI(spki, NULL);

   110 	der_spki = OPENSSL_malloc(der_len);

   111 	b64_str = OPENSSL_malloc(der_len * 2);

   112 	if(!der_spki || !b64_str) {

   113 		X509err(X509_F_NETSCAPE_SPKI_B64_ENCODE, ERR_R_MALLOC_FAILURE);

   114 		return NULL;

   115 	}

   116 	p = der_spki;

   117 	i2d_NETSCAPE_SPKI(spki, &p);

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

   119 	OPENSSL_free(der_spki);

   120 	return b64_str;

   121 }