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 *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, AUTHORITY_KEYID *akeyid, STACK *extlist);
67 static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK *values);
69 X509V3_EXT_METHOD v3_akey_id = {
70 NID_authority_key_identifier, X509V3_EXT_MULTILINE,
71 (X509V3_EXT_NEW)AUTHORITY_KEYID_new,
73 (X509V3_EXT_D2I)d2i_AUTHORITY_KEYID,
76 (X509V3_EXT_I2V)i2v_AUTHORITY_KEYID,
77 (X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
83 int i2d_AUTHORITY_KEYID(AUTHORITY_KEYID *a, unsigned char **pp)
87 M_ASN1_I2D_len_IMP_opt (a->keyid, i2d_ASN1_OCTET_STRING);
88 M_ASN1_I2D_len_IMP_opt (a->issuer, i2d_GENERAL_NAMES);
89 M_ASN1_I2D_len_IMP_opt (a->serial, i2d_ASN1_INTEGER);
91 M_ASN1_I2D_seq_total();
93 M_ASN1_I2D_put_IMP_opt (a->keyid, i2d_ASN1_OCTET_STRING, 0);
94 M_ASN1_I2D_put_IMP_opt (a->issuer, i2d_GENERAL_NAMES, 1);
95 M_ASN1_I2D_put_IMP_opt (a->serial, i2d_ASN1_INTEGER, 2);
100 AUTHORITY_KEYID *AUTHORITY_KEYID_new(void)
102 AUTHORITY_KEYID *ret=NULL;
104 M_ASN1_New_Malloc(ret, AUTHORITY_KEYID);
109 M_ASN1_New_Error(ASN1_F_AUTHORITY_KEYID_NEW);
112 AUTHORITY_KEYID *d2i_AUTHORITY_KEYID(AUTHORITY_KEYID **a, unsigned char **pp,
115 M_ASN1_D2I_vars(a,AUTHORITY_KEYID *,AUTHORITY_KEYID_new);
117 M_ASN1_D2I_start_sequence();
118 M_ASN1_D2I_get_IMP_opt (ret->keyid, d2i_ASN1_OCTET_STRING, 0,
119 V_ASN1_OCTET_STRING);
120 M_ASN1_D2I_get_IMP_opt (ret->issuer, d2i_GENERAL_NAMES, 1,
122 M_ASN1_D2I_get_IMP_opt (ret->serial, d2i_ASN1_INTEGER, 2,
124 M_ASN1_D2I_Finish(a, AUTHORITY_KEYID_free, ASN1_F_D2I_AUTHORITY_KEYID);
127 void AUTHORITY_KEYID_free(AUTHORITY_KEYID *a)
129 if (a == NULL) return;
130 ASN1_OCTET_STRING_free(a->keyid);
131 sk_GENERAL_NAME_pop_free(a->issuer, GENERAL_NAME_free);
132 ASN1_INTEGER_free (a->serial);
136 static STACK *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
137 AUTHORITY_KEYID *akeyid, STACK *extlist)
141 tmp = hex_to_string(akeyid->keyid->data, akeyid->keyid->length);
142 X509V3_add_value("keyid", tmp, &extlist);
146 extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist);
148 tmp = hex_to_string(akeyid->serial->data,
149 akeyid->serial->length);
150 X509V3_add_value("serial", tmp, &extlist);
156 /* Currently two options:
157 * keyid: use the issuers subject keyid, the value 'always' means its is
158 * an error if the issuer certificate doesn't have a key id.
159 * issuer: use the issuers cert issuer and serial number. The default is
160 * to only use this if keyid is not present. With the option 'always'
161 * this is always included.
164 static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method,
165 X509V3_CTX *ctx, STACK *values)
167 char keyid=0, issuer=0;
170 ASN1_OCTET_STRING *ikeyid = NULL;
171 X509_NAME *isname = NULL;
172 STACK_OF(GENERAL_NAME) * gens = NULL;
173 GENERAL_NAME *gen = NULL;
174 ASN1_INTEGER *serial = NULL;
177 AUTHORITY_KEYID *akeyid;
178 for(i = 0; i < sk_num(values); i++) {
179 cnf = (CONF_VALUE *)sk_value(values, i);
180 if(!strcmp(cnf->name, "keyid")) {
182 if(cnf->value && !strcmp(cnf->value, "always")) keyid = 2;
183 } else if(!strcmp(cnf->name, "issuer")) {
185 if(cnf->value && !strcmp(cnf->value, "always")) issuer = 2;
187 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNKNOWN_OPTION);
188 ERR_add_error_data(2, "name=", cnf->name);
195 if(!ctx || !ctx->issuer_cert) {
196 if(ctx && (ctx->flags==CTX_TEST)) return AUTHORITY_KEYID_new();
197 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_NO_ISSUER_CERTIFICATE);
201 cert = ctx->issuer_cert;
204 i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1);
205 if((i >= 0) && (ext = X509_get_ext(cert, i)))
206 ikeyid = X509V3_EXT_d2i(ext);
207 if(keyid==2 && !ikeyid) {
208 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_KEYID);
213 if((issuer && !ikeyid) || (issuer == 2)) {
214 isname = X509_NAME_dup(X509_get_issuer_name(cert));
215 serial = ASN1_INTEGER_dup(X509_get_serialNumber(cert));
216 if(!isname || !serial) {
217 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS);
222 if(!(akeyid = AUTHORITY_KEYID_new())) goto err;
225 if(!(gens = sk_GENERAL_NAME_new(NULL)) || !(gen = GENERAL_NAME_new())
226 || !sk_GENERAL_NAME_push(gens, gen)) {
227 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,ERR_R_MALLOC_FAILURE);
230 gen->type = GEN_DIRNAME;
231 gen->d.dirn = isname;
234 akeyid->issuer = gens;
235 akeyid->serial = serial;
236 akeyid->keyid = ikeyid;
241 X509_NAME_free(isname);
242 ASN1_INTEGER_free(serial);
243 ASN1_OCTET_STRING_free(ikeyid);