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).
62 #include <openssl/conf.h>
63 #include <openssl/asn1.h>
64 #include <openssl/asn1t.h>
65 #include <openssl/x509v3.h>
67 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
68 AUTHORITY_KEYID *akeyid,
71 static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
73 STACK_OF(CONF_VALUE) *values);
75 const X509V3_EXT_METHOD v3_akey_id = {
76 NID_authority_key_identifier,
77 X509V3_EXT_MULTILINE, ASN1_ITEM_ref(AUTHORITY_KEYID),
80 (X509V3_EXT_I2V) i2v_AUTHORITY_KEYID,
81 (X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
86 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
87 AUTHORITY_KEYID *akeyid,
93 tmp = hex_to_string(akeyid->keyid->data, akeyid->keyid->length);
94 X509V3_add_value("keyid", tmp, &extlist);
98 extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist);
100 tmp = hex_to_string(akeyid->serial->data, akeyid->serial->length);
101 X509V3_add_value("serial", tmp, &extlist);
108 * Currently two options:
109 * keyid: use the issuers subject keyid, the value 'always' means its is
110 * an error if the issuer certificate doesn't have a key id.
111 * issuer: use the issuers cert issuer and serial number. The default is
112 * to only use this if keyid is not present. With the option 'always'
113 * this is always included.
116 static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
118 STACK_OF(CONF_VALUE) *values)
120 char keyid = 0, issuer = 0;
123 ASN1_OCTET_STRING *ikeyid = NULL;
124 X509_NAME *isname = NULL;
125 GENERAL_NAMES *gens = NULL;
126 GENERAL_NAME *gen = NULL;
127 ASN1_INTEGER *serial = NULL;
130 AUTHORITY_KEYID *akeyid;
132 for (i = 0; i < sk_CONF_VALUE_num(values); i++) {
133 cnf = sk_CONF_VALUE_value(values, i);
134 if (!strcmp(cnf->name, "keyid")) {
136 if (cnf->value && !strcmp(cnf->value, "always"))
138 } else if (!strcmp(cnf->name, "issuer")) {
140 if (cnf->value && !strcmp(cnf->value, "always"))
143 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, X509V3_R_UNKNOWN_OPTION);
144 ERR_add_error_data(2, "name=", cnf->name);
149 if (!ctx || !ctx->issuer_cert) {
150 if (ctx && (ctx->flags == CTX_TEST))
151 return AUTHORITY_KEYID_new();
152 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,
153 X509V3_R_NO_ISSUER_CERTIFICATE);
157 cert = ctx->issuer_cert;
160 i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1);
161 if ((i >= 0) && (ext = X509_get_ext(cert, i)))
162 ikeyid = X509V3_EXT_d2i(ext);
163 if (keyid == 2 && !ikeyid) {
164 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,
165 X509V3_R_UNABLE_TO_GET_ISSUER_KEYID);
170 if ((issuer && !ikeyid) || (issuer == 2)) {
171 isname = X509_NAME_dup(X509_get_issuer_name(cert));
172 serial = M_ASN1_INTEGER_dup(X509_get_serialNumber(cert));
173 if (!isname || !serial) {
174 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,
175 X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS);
180 if (!(akeyid = AUTHORITY_KEYID_new()))
184 if (!(gens = sk_GENERAL_NAME_new_null())
185 || !(gen = GENERAL_NAME_new())
186 || !sk_GENERAL_NAME_push(gens, gen)) {
187 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, ERR_R_MALLOC_FAILURE);
190 gen->type = GEN_DIRNAME;
191 gen->d.dirn = isname;
194 akeyid->issuer = gens;
195 akeyid->serial = serial;
196 akeyid->keyid = ikeyid;
201 X509_NAME_free(isname);
202 M_ASN1_INTEGER_free(serial);
203 M_ASN1_OCTET_STRING_free(ikeyid);