2 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
5 /* ====================================================================
6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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 * ====================================================================
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).
60 #include "internal/cryptlib.h"
61 #include <openssl/x509v3.h>
62 #include "internal/x509_int.h"
65 static ASN1_OCTET_STRING *s2i_skey_id(X509V3_EXT_METHOD *method,
66 X509V3_CTX *ctx, char *str);
67 const X509V3_EXT_METHOD v3_skey_id = {
68 NID_subject_key_identifier, 0, ASN1_ITEM_ref(ASN1_OCTET_STRING),
70 (X509V3_EXT_I2S)i2s_ASN1_OCTET_STRING,
71 (X509V3_EXT_S2I)s2i_skey_id,
76 char *i2s_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method, ASN1_OCTET_STRING *oct)
78 return OPENSSL_buf2hexstr(oct->data, oct->length);
81 ASN1_OCTET_STRING *s2i_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method,
82 X509V3_CTX *ctx, char *str)
84 ASN1_OCTET_STRING *oct;
87 if ((oct = ASN1_OCTET_STRING_new()) == NULL) {
88 X509V3err(X509V3_F_S2I_ASN1_OCTET_STRING, ERR_R_MALLOC_FAILURE);
92 if ((oct->data = OPENSSL_hexstr2buf(str, &length)) == NULL) {
93 ASN1_OCTET_STRING_free(oct);
103 static ASN1_OCTET_STRING *s2i_skey_id(X509V3_EXT_METHOD *method,
104 X509V3_CTX *ctx, char *str)
106 ASN1_OCTET_STRING *oct;
108 const unsigned char *pk;
110 unsigned char pkey_dig[EVP_MAX_MD_SIZE];
113 if (strcmp(str, "hash"))
114 return s2i_ASN1_OCTET_STRING(method, ctx, str);
116 if ((oct = ASN1_OCTET_STRING_new()) == NULL) {
117 X509V3err(X509V3_F_S2I_SKEY_ID, ERR_R_MALLOC_FAILURE);
121 if (ctx && (ctx->flags == CTX_TEST))
124 if (!ctx || (!ctx->subject_req && !ctx->subject_cert)) {
125 X509V3err(X509V3_F_S2I_SKEY_ID, X509V3_R_NO_PUBLIC_KEY);
129 if (ctx->subject_req)
130 pubkey = ctx->subject_req->req_info.pubkey;
132 pubkey = ctx->subject_cert->cert_info.key;
134 if (pubkey == NULL) {
135 X509V3err(X509V3_F_S2I_SKEY_ID, X509V3_R_NO_PUBLIC_KEY);
139 X509_PUBKEY_get0_param(NULL, &pk, &pklen, NULL, pubkey);
141 if (!EVP_Digest(pk, pklen, pkey_dig, &diglen, EVP_sha1(), NULL))
144 if (!ASN1_OCTET_STRING_set(oct, pkey_dig, diglen)) {
145 X509V3err(X509V3_F_S2I_SKEY_ID, ERR_R_MALLOC_FAILURE);
152 ASN1_OCTET_STRING_free(oct);