libcrypto/x509/x509spki.c

1 /* $OpenBSD: x509spki.c,v 1.17 2025年05月10日 05:54:39 tb Exp $ */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) 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 <stdlib.h>
61#include <string.h>
62
63#include <openssl/x509.h>
64
65#include "err_local.h"
66
67 int
68 NETSCAPE_SPKI_set_pubkey(NETSCAPE_SPKI *x, EVP_PKEY *pkey)
69{
70 if ((x == NULL) || (x->spkac == NULL))
71 return (0);
72 return (X509_PUBKEY_set(&(x->spkac->pubkey), pkey));
73}
74 LCRYPTO_ALIAS(NETSCAPE_SPKI_set_pubkey);
75
76 EVP_PKEY *
77 NETSCAPE_SPKI_get_pubkey(NETSCAPE_SPKI *x)
78{
79 if ((x == NULL) || (x->spkac == NULL))
80 return (NULL);
81 return (X509_PUBKEY_get(x->spkac->pubkey));
82}
83 LCRYPTO_ALIAS(NETSCAPE_SPKI_get_pubkey);
84
85 /* Load a Netscape SPKI from a base64 encoded string */
86
87 NETSCAPE_SPKI *
88 NETSCAPE_SPKI_b64_decode(const char *str, int len)
89{
90 unsigned char *spki_der;
91 const unsigned char *p;
92 int spki_len;
93 NETSCAPE_SPKI *spki;
94
95 if (len <= 0)
96 len = strlen(str);
97 if (!(spki_der = malloc(len + 1))) {
98 X509error(ERR_R_MALLOC_FAILURE);
99 return NULL;
100 }
101 spki_len = EVP_DecodeBlock(spki_der, (const unsigned char *)str, len);
102 if (spki_len < 0) {
103 X509error(X509_R_BASE64_DECODE_ERROR);
104 free(spki_der);
105 return NULL;
106 }
107 p = spki_der;
108 spki = d2i_NETSCAPE_SPKI(NULL, &p, spki_len);
109 free(spki_der);
110 return spki;
111}
112 LCRYPTO_ALIAS(NETSCAPE_SPKI_b64_decode);
113
114 /* Generate a base64 encoded string from an SPKI */
115
116 char *
117 NETSCAPE_SPKI_b64_encode(NETSCAPE_SPKI *spki)
118{
119 unsigned char *der_spki, *p;
120 char *b64_str;
121 int der_len;
122 der_len = i2d_NETSCAPE_SPKI(spki, NULL);
123 der_spki = malloc(der_len);
124 b64_str = reallocarray(NULL, der_len, 2);
125 if (!der_spki || !b64_str) {
126 X509error(ERR_R_MALLOC_FAILURE);
127 free(der_spki);
128 free(b64_str);
129 return NULL;
130 }
131 p = der_spki;
132 i2d_NETSCAPE_SPKI(spki, &p);
133 EVP_EncodeBlock((unsigned char *)b64_str, der_spki, der_len);
134 free(der_spki);
135 return b64_str;
136}
137 LCRYPTO_ALIAS(NETSCAPE_SPKI_b64_encode);
138