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/asn1_mac.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,
85 int i2d_AUTHORITY_KEYID(AUTHORITY_KEYID *a, unsigned char **pp)
89 M_ASN1_I2D_len_IMP_opt (a->keyid, i2d_ASN1_OCTET_STRING);
90 M_ASN1_I2D_len_IMP_opt (a->issuer, i2d_GENERAL_NAMES);
91 M_ASN1_I2D_len_IMP_opt (a->serial, i2d_ASN1_INTEGER);
93 M_ASN1_I2D_seq_total();
95 M_ASN1_I2D_put_IMP_opt (a->keyid, i2d_ASN1_OCTET_STRING, 0);
96 M_ASN1_I2D_put_IMP_opt (a->issuer, i2d_GENERAL_NAMES, 1);
97 M_ASN1_I2D_put_IMP_opt (a->serial, i2d_ASN1_INTEGER, 2);
102 AUTHORITY_KEYID *AUTHORITY_KEYID_new(void)
104 AUTHORITY_KEYID *ret=NULL;
106 M_ASN1_New_Malloc(ret, AUTHORITY_KEYID);
111 M_ASN1_New_Error(ASN1_F_AUTHORITY_KEYID_NEW);
114 AUTHORITY_KEYID *d2i_AUTHORITY_KEYID(AUTHORITY_KEYID **a, unsigned char **pp,
117 M_ASN1_D2I_vars(a,AUTHORITY_KEYID *,AUTHORITY_KEYID_new);
119 M_ASN1_D2I_start_sequence();
120 M_ASN1_D2I_get_IMP_opt (ret->keyid, d2i_ASN1_OCTET_STRING, 0,
121 V_ASN1_OCTET_STRING);
122 M_ASN1_D2I_get_IMP_opt (ret->issuer, d2i_GENERAL_NAMES, 1,
124 M_ASN1_D2I_get_IMP_opt (ret->serial, d2i_ASN1_INTEGER, 2,
126 M_ASN1_D2I_Finish(a, AUTHORITY_KEYID_free, ASN1_F_D2I_AUTHORITY_KEYID);
129 void AUTHORITY_KEYID_free(AUTHORITY_KEYID *a)
131 if (a == NULL) return;
132 M_ASN1_OCTET_STRING_free(a->keyid);
133 sk_GENERAL_NAME_pop_free(a->issuer, GENERAL_NAME_free);
134 M_ASN1_INTEGER_free (a->serial);
138 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
139 AUTHORITY_KEYID *akeyid, STACK_OF(CONF_VALUE) *extlist)
143 tmp = hex_to_string(akeyid->keyid->data, akeyid->keyid->length);
144 X509V3_add_value("keyid", tmp, &extlist);
148 extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist);
150 tmp = hex_to_string(akeyid->serial->data,
151 akeyid->serial->length);
152 X509V3_add_value("serial", tmp, &extlist);
158 /* Currently two options:
159 * keyid: use the issuers subject keyid, the value 'always' means its is
160 * an error if the issuer certificate doesn't have a key id.
161 * issuer: use the issuers cert issuer and serial number. The default is
162 * to only use this if keyid is not present. With the option 'always'
163 * this is always included.
166 static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
167 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values)
169 char keyid=0, issuer=0;
172 ASN1_OCTET_STRING *ikeyid = NULL;
173 X509_NAME *isname = NULL;
174 STACK_OF(GENERAL_NAME) * gens = NULL;
175 GENERAL_NAME *gen = NULL;
176 ASN1_INTEGER *serial = NULL;
179 AUTHORITY_KEYID *akeyid;
180 for(i = 0; i < sk_CONF_VALUE_num(values); i++) {
181 cnf = sk_CONF_VALUE_value(values, i);
182 if(!strcmp(cnf->name, "keyid")) {
184 if(cnf->value && !strcmp(cnf->value, "always")) keyid = 2;
185 } else if(!strcmp(cnf->name, "issuer")) {
187 if(cnf->value && !strcmp(cnf->value, "always")) issuer = 2;
189 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNKNOWN_OPTION);
190 ERR_add_error_data(2, "name=", cnf->name);
197 if(!ctx || !ctx->issuer_cert) {
198 if(ctx && (ctx->flags==CTX_TEST)) return AUTHORITY_KEYID_new();
199 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_NO_ISSUER_CERTIFICATE);
203 cert = ctx->issuer_cert;
206 i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1);
207 if((i >= 0) && (ext = X509_get_ext(cert, i)))
208 ikeyid = X509V3_EXT_d2i(ext);
209 if(keyid==2 && !ikeyid) {
210 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_KEYID);
215 if((issuer && !ikeyid) || (issuer == 2)) {
216 isname = X509_NAME_dup(X509_get_issuer_name(cert));
217 serial = M_ASN1_INTEGER_dup(X509_get_serialNumber(cert));
218 if(!isname || !serial) {
219 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS);
224 if(!(akeyid = AUTHORITY_KEYID_new())) goto err;
227 if(!(gens = sk_GENERAL_NAME_new(NULL)) || !(gen = GENERAL_NAME_new())
228 || !sk_GENERAL_NAME_push(gens, gen)) {
229 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,ERR_R_MALLOC_FAILURE);
232 gen->type = GEN_DIRNAME;
233 gen->d.dirn = isname;
236 akeyid->issuer = gens;
237 akeyid->serial = serial;
238 akeyid->keyid = ikeyid;
243 X509_NAME_free(isname);
244 M_ASN1_INTEGER_free(serial);
245 M_ASN1_OCTET_STRING_free(ikeyid);