x509spki.c revision 296465
1/* x509spki.c */
2/*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4 * 1999.
5 */
6/* ====================================================================
7 * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in
18 *    the documentation and/or other materials provided with the
19 *    distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 *    software must display the following acknowledgment:
23 *    "This product includes software developed by the OpenSSL Project
24 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 *    endorse or promote products derived from this software without
28 *    prior written permission. For written permission, please contact
29 *    licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 *    nor may "OpenSSL" appear in their names without prior written
33 *    permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 *    acknowledgment:
37 *    "This product includes software developed by the OpenSSL Project
38 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com).  This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59
60#include <stdio.h>
61#include "cryptlib.h"
62#include <openssl/x509.h>
63
64int NETSCAPE_SPKI_set_pubkey(NETSCAPE_SPKI *x, EVP_PKEY *pkey)
65{
66    if ((x == NULL) || (x->spkac == NULL))
67        return (0);
68    return (X509_PUBKEY_set(&(x->spkac->pubkey), pkey));
69}
70
71EVP_PKEY *NETSCAPE_SPKI_get_pubkey(NETSCAPE_SPKI *x)
72{
73    if ((x == NULL) || (x->spkac == NULL))
74        return (NULL);
75    return (X509_PUBKEY_get(x->spkac->pubkey));
76}
77
78/* Load a Netscape SPKI from a base64 encoded string */
79
80NETSCAPE_SPKI *NETSCAPE_SPKI_b64_decode(const char *str, int len)
81{
82    unsigned char *spki_der;
83    const unsigned char *p;
84    int spki_len;
85    NETSCAPE_SPKI *spki;
86    if (len <= 0)
87        len = strlen(str);
88    if (!(spki_der = OPENSSL_malloc(len + 1))) {
89        X509err(X509_F_NETSCAPE_SPKI_B64_DECODE, ERR_R_MALLOC_FAILURE);
90        return NULL;
91    }
92    spki_len = EVP_DecodeBlock(spki_der, (const unsigned char *)str, len);
93    if (spki_len < 0) {
94        X509err(X509_F_NETSCAPE_SPKI_B64_DECODE, X509_R_BASE64_DECODE_ERROR);
95        OPENSSL_free(spki_der);
96        return NULL;
97    }
98    p = spki_der;
99    spki = d2i_NETSCAPE_SPKI(NULL, &p, spki_len);
100    OPENSSL_free(spki_der);
101    return spki;
102}
103
104/* Generate a base64 encoded string from an SPKI */
105
106char *NETSCAPE_SPKI_b64_encode(NETSCAPE_SPKI *spki)
107{
108    unsigned char *der_spki, *p;
109    char *b64_str;
110    int der_len;
111    der_len = i2d_NETSCAPE_SPKI(spki, NULL);
112    der_spki = OPENSSL_malloc(der_len);
113    b64_str = OPENSSL_malloc(der_len * 2);
114    if (!der_spki || !b64_str) {
115        X509err(X509_F_NETSCAPE_SPKI_B64_ENCODE, ERR_R_MALLOC_FAILURE);
116        return NULL;
117    }
118    p = der_spki;
119    i2d_NETSCAPE_SPKI(spki, &p);
120    EVP_EncodeBlock((unsigned char *)b64_str, der_spki, der_len);
121    OPENSSL_free(der_spki);
122    return b64_str;
123}
124