2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
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).
61 #include <openssl/conf.h>
62 #include <openssl/asn1.h>
63 #include <openssl/asn1t.h>
64 #include <openssl/x509v3.h>
66 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
67 AUTHORITY_KEYID *akeyid, STACK_OF(CONF_VALUE) *extlist);
68 static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
69 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values);
71 X509V3_EXT_METHOD v3_akey_id = {
72 NID_authority_key_identifier, X509V3_EXT_MULTILINE,
73 (X509V3_EXT_NEW)AUTHORITY_KEYID_new,
74 (X509V3_EXT_FREE)AUTHORITY_KEYID_free,
75 (X509V3_EXT_D2I)d2i_AUTHORITY_KEYID,
76 (X509V3_EXT_I2D)i2d_AUTHORITY_KEYID,
78 (X509V3_EXT_I2V)i2v_AUTHORITY_KEYID,
79 (X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
84 ASN1_SEQUENCE(AUTHORITY_KEYID) = {
85 ASN1_IMP_OPT(AUTHORITY_KEYID, keyid, ASN1_OCTET_STRING, 0),
86 ASN1_IMP_SEQUENCE_OF_OPT(AUTHORITY_KEYID, issuer, GENERAL_NAME, 1),
87 ASN1_IMP_OPT(AUTHORITY_KEYID, serial, ASN1_INTEGER, 2)
88 } ASN1_SEQUENCE_END(AUTHORITY_KEYID);
90 IMPLEMENT_ASN1_FUNCTIONS(AUTHORITY_KEYID)
92 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
93 AUTHORITY_KEYID *akeyid, STACK_OF(CONF_VALUE) *extlist)
97 tmp = hex_to_string(akeyid->keyid->data, akeyid->keyid->length);
98 X509V3_add_value("keyid", tmp, &extlist);
102 extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist);
104 tmp = hex_to_string(akeyid->serial->data,
105 akeyid->serial->length);
106 X509V3_add_value("serial", tmp, &extlist);
112 /* Currently two options:
113 * keyid: use the issuers subject keyid, the value 'always' means its is
114 * an error if the issuer certificate doesn't have a key id.
115 * issuer: use the issuers cert issuer and serial number. The default is
116 * to only use this if keyid is not present. With the option 'always'
117 * this is always included.
120 static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
121 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values)
123 char keyid=0, issuer=0;
126 ASN1_OCTET_STRING *ikeyid = NULL;
127 X509_NAME *isname = NULL;
128 GENERAL_NAMES * gens = NULL;
129 GENERAL_NAME *gen = NULL;
130 ASN1_INTEGER *serial = NULL;
133 AUTHORITY_KEYID *akeyid;
134 for(i = 0; i < sk_CONF_VALUE_num(values); i++) {
135 cnf = sk_CONF_VALUE_value(values, i);
136 if(!strcmp(cnf->name, "keyid")) {
138 if(cnf->value && !strcmp(cnf->value, "always")) keyid = 2;
139 } else if(!strcmp(cnf->name, "issuer")) {
141 if(cnf->value && !strcmp(cnf->value, "always")) issuer = 2;
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)) return AUTHORITY_KEYID_new();
151 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_NO_ISSUER_CERTIFICATE);
155 cert = ctx->issuer_cert;
158 i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1);
159 if((i >= 0) && (ext = X509_get_ext(cert, i)))
160 ikeyid = X509V3_EXT_d2i(ext);
161 if(keyid==2 && !ikeyid) {
162 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_KEYID);
167 if((issuer && !ikeyid) || (issuer == 2)) {
168 isname = X509_NAME_dup(X509_get_issuer_name(cert));
169 serial = M_ASN1_INTEGER_dup(X509_get_serialNumber(cert));
170 if(!isname || !serial) {
171 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS);
176 if(!(akeyid = AUTHORITY_KEYID_new())) goto err;
179 if(!(gens = sk_GENERAL_NAME_new_null()) || !(gen = GENERAL_NAME_new())
180 || !sk_GENERAL_NAME_push(gens, gen)) {
181 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,ERR_R_MALLOC_FAILURE);
184 gen->type = GEN_DIRNAME;
185 gen->d.dirn = isname;
188 akeyid->issuer = gens;
189 akeyid->serial = serial;
190 akeyid->keyid = ikeyid;
195 X509_NAME_free(isname);
196 M_ASN1_INTEGER_free(serial);
197 M_ASN1_OCTET_STRING_free(ikeyid);