3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
6 /* ====================================================================
7 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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 * ====================================================================
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).
61 #include "internal/cryptlib.h"
62 #include <openssl/conf.h>
63 #include <openssl/asn1.h>
64 #include <openssl/asn1t.h>
65 #include <openssl/x509v3.h>
68 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
69 AUTHORITY_KEYID *akeyid,
72 static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
74 STACK_OF(CONF_VALUE) *values);
76 const X509V3_EXT_METHOD v3_akey_id = {
77 NID_authority_key_identifier,
78 X509V3_EXT_MULTILINE, ASN1_ITEM_ref(AUTHORITY_KEYID),
81 (X509V3_EXT_I2V) i2v_AUTHORITY_KEYID,
82 (X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
87 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
88 AUTHORITY_KEYID *akeyid,
94 tmp = hex_to_string(akeyid->keyid->data, akeyid->keyid->length);
95 X509V3_add_value("keyid", tmp, &extlist);
99 extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist);
100 if (akeyid->serial) {
101 tmp = hex_to_string(akeyid->serial->data, akeyid->serial->length);
102 X509V3_add_value("serial", tmp, &extlist);
109 * Currently two options:
110 * keyid: use the issuers subject keyid, the value 'always' means its is
111 * an error if the issuer certificate doesn't have a key id.
112 * issuer: use the issuers cert issuer and serial number. The default is
113 * to only use this if keyid is not present. With the option 'always'
114 * this is always included.
117 static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
119 STACK_OF(CONF_VALUE) *values)
121 char keyid = 0, issuer = 0;
124 ASN1_OCTET_STRING *ikeyid = NULL;
125 X509_NAME *isname = NULL;
126 GENERAL_NAMES *gens = NULL;
127 GENERAL_NAME *gen = NULL;
128 ASN1_INTEGER *serial = NULL;
131 AUTHORITY_KEYID *akeyid;
133 for (i = 0; i < sk_CONF_VALUE_num(values); i++) {
134 cnf = sk_CONF_VALUE_value(values, i);
135 if (strcmp(cnf->name, "keyid") == 0) {
137 if (cnf->value && strcmp(cnf->value, "always") == 0)
139 } else if (strcmp(cnf->name, "issuer") == 0) {
141 if (cnf->value && strcmp(cnf->value, "always") == 0)
144 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, X509V3_R_UNKNOWN_OPTION);
145 ERR_add_error_data(2, "name=", cnf->name);
150 if (!ctx || !ctx->issuer_cert) {
151 if (ctx && (ctx->flags == CTX_TEST))
152 return AUTHORITY_KEYID_new();
153 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,
154 X509V3_R_NO_ISSUER_CERTIFICATE);
158 cert = ctx->issuer_cert;
161 i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1);
162 if ((i >= 0) && (ext = X509_get_ext(cert, i)))
163 ikeyid = X509V3_EXT_d2i(ext);
164 if (keyid == 2 && !ikeyid) {
165 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,
166 X509V3_R_UNABLE_TO_GET_ISSUER_KEYID);
171 if ((issuer && !ikeyid) || (issuer == 2)) {
172 isname = X509_NAME_dup(X509_get_issuer_name(cert));
173 serial = ASN1_INTEGER_dup(X509_get_serialNumber(cert));
174 if (!isname || !serial) {
175 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,
176 X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS);
181 if ((akeyid = AUTHORITY_KEYID_new()) == NULL)
185 if ((gens = sk_GENERAL_NAME_new_null()) == NULL
186 || (gen = GENERAL_NAME_new()) == NULL
187 || !sk_GENERAL_NAME_push(gens, gen)) {
188 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, ERR_R_MALLOC_FAILURE);
191 gen->type = GEN_DIRNAME;
192 gen->d.dirn = isname;
195 akeyid->issuer = gens;
196 akeyid->serial = serial;
197 akeyid->keyid = ikeyid;
202 X509_NAME_free(isname);
203 ASN1_INTEGER_free(serial);
204 ASN1_OCTET_STRING_free(ikeyid);