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>
67 static STACK
*i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD
*method
, AUTHORITY_KEYID
*akeyid
, STACK
*extlist
);
68 static AUTHORITY_KEYID
*v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD
*method
, X509V3_CTX
*ctx
, STACK
*values
);
72 static STACK
*i2v_AUTHORITY_KEYID();
73 static AUTHORITY_KEYID
*v2i_AUTHORITY_KEYID();
77 X509V3_EXT_METHOD v3_akey_id
= {
78 NID_authority_key_identifier
, X509V3_EXT_MULTILINE
,
79 (X509V3_EXT_NEW
)AUTHORITY_KEYID_new
,
81 (X509V3_EXT_D2I
)d2i_AUTHORITY_KEYID
,
84 (X509V3_EXT_I2V
)i2v_AUTHORITY_KEYID
,
85 (X509V3_EXT_V2I
)v2i_AUTHORITY_KEYID
,
92 * ASN1err(ASN1_F_AUTHORITY_KEYID_NEW,ERR_R_MALLOC_FAILURE);
93 * ASN1err(ASN1_F_D2I_AUTHORITY_KEYID,ERR_R_MALLOC_FAILURE);
96 int i2d_AUTHORITY_KEYID(AUTHORITY_KEYID
*a
, unsigned char **pp
)
100 M_ASN1_I2D_len_IMP_opt (a
->keyid
, i2d_ASN1_OCTET_STRING
);
101 M_ASN1_I2D_len_IMP_opt (a
->issuer
, i2d_GENERAL_NAMES
);
102 M_ASN1_I2D_len_IMP_opt (a
->serial
, i2d_ASN1_INTEGER
);
104 M_ASN1_I2D_seq_total();
106 M_ASN1_I2D_put_IMP_opt (a
->keyid
, i2d_ASN1_OCTET_STRING
, 0);
107 M_ASN1_I2D_put_IMP_opt (a
->issuer
, i2d_GENERAL_NAMES
, 1);
108 M_ASN1_I2D_put_IMP_opt (a
->serial
, i2d_ASN1_INTEGER
, 2);
113 AUTHORITY_KEYID
*AUTHORITY_KEYID_new(void)
115 AUTHORITY_KEYID
*ret
=NULL
;
117 M_ASN1_New_Malloc(ret
, AUTHORITY_KEYID
);
122 M_ASN1_New_Error(ASN1_F_AUTHORITY_KEYID_NEW
);
125 AUTHORITY_KEYID
*d2i_AUTHORITY_KEYID(AUTHORITY_KEYID
**a
, unsigned char **pp
,
128 M_ASN1_D2I_vars(a
,AUTHORITY_KEYID
*,AUTHORITY_KEYID_new
);
130 M_ASN1_D2I_start_sequence();
131 M_ASN1_D2I_get_IMP_opt (ret
->keyid
, d2i_ASN1_OCTET_STRING
, 0,
132 V_ASN1_OCTET_STRING
);
133 M_ASN1_D2I_get_IMP_opt (ret
->issuer
, d2i_GENERAL_NAMES
, 1,
135 M_ASN1_D2I_get_IMP_opt (ret
->serial
, d2i_ASN1_INTEGER
, 2,
137 M_ASN1_D2I_Finish(a
, AUTHORITY_KEYID_free
, ASN1_F_D2I_AUTHORITY_KEYID
);
140 void AUTHORITY_KEYID_free(AUTHORITY_KEYID
*a
)
142 if (a
== NULL
) return;
143 ASN1_OCTET_STRING_free(a
->keyid
);
144 sk_GENERAL_NAME_pop_free(a
->issuer
, GENERAL_NAME_free
);
145 ASN1_INTEGER_free (a
->serial
);
149 static STACK
*i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD
*method
,
150 AUTHORITY_KEYID
*akeyid
, STACK
*extlist
)
154 tmp
= hex_to_string(akeyid
->keyid
->data
, akeyid
->keyid
->length
);
155 X509V3_add_value("keyid", tmp
, &extlist
);
159 extlist
= i2v_GENERAL_NAMES(NULL
, akeyid
->issuer
, extlist
);
161 tmp
= hex_to_string(akeyid
->serial
->data
,
162 akeyid
->serial
->length
);
163 X509V3_add_value("serial", tmp
, &extlist
);
169 /* Currently two options:
170 * keyid: use the issuers subject keyid, the value 'always' means its is
171 * an error if the issuer certificate doesn't have a key id.
172 * issuer: use the issuers cert issuer and serial number. The default is
173 * to only use this if keyid is not present. With the option 'always'
174 * this is always included.
177 static AUTHORITY_KEYID
*v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD
*method
,
178 X509V3_CTX
*ctx
, STACK
*values
)
180 char keyid
=0, issuer
=0;
183 ASN1_OCTET_STRING
*ikeyid
= NULL
;
184 X509_NAME
*isname
= NULL
;
185 STACK_OF(GENERAL_NAME
) * gens
= NULL
;
186 GENERAL_NAME
*gen
= NULL
;
187 ASN1_INTEGER
*serial
= NULL
;
190 AUTHORITY_KEYID
*akeyid
;
191 for(i
= 0; i
< sk_num(values
); i
++) {
192 cnf
= (CONF_VALUE
*)sk_value(values
, i
);
193 if(!strcmp(cnf
->name
, "keyid")) {
195 if(cnf
->value
&& !strcmp(cnf
->value
, "always")) keyid
= 2;
196 } else if(!strcmp(cnf
->name
, "issuer")) {
198 if(cnf
->value
&& !strcmp(cnf
->value
, "always")) issuer
= 2;
200 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID
,X509V3_R_UNKNOWN_OPTION
);
201 ERR_add_error_data(2, "name=", cnf
->name
);
208 if(!ctx
|| !ctx
->issuer_cert
) {
209 if(ctx
&& (ctx
->flags
==CTX_TEST
)) return AUTHORITY_KEYID_new();
210 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID
,X509V3_R_NO_ISSUER_CERTIFICATE
);
214 cert
= ctx
->issuer_cert
;
217 i
= X509_get_ext_by_NID(cert
, NID_subject_key_identifier
, -1);
218 if((i
>= 0) && (ext
= X509_get_ext(cert
, i
)))
219 ikeyid
= X509V3_EXT_d2i(ext
);
220 if(keyid
==2 && !ikeyid
) {
221 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID
,X509V3_R_UNABLE_TO_GET_ISSUER_KEYID
);
226 if((issuer
&& !ikeyid
) || (issuer
== 2)) {
227 isname
= X509_NAME_dup(X509_get_issuer_name(cert
));
228 serial
= ASN1_INTEGER_dup(X509_get_serialNumber(cert
));
229 if(!isname
|| !serial
) {
230 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID
,X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS
);
235 if(!(akeyid
= AUTHORITY_KEYID_new())) goto err
;
238 if(!(gens
= sk_GENERAL_NAME_new(NULL
)) || !(gen
= GENERAL_NAME_new())
239 || !sk_GENERAL_NAME_push(gens
, gen
)) {
240 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID
,ERR_R_MALLOC_FAILURE
);
243 gen
->type
= GEN_DIRNAME
;
244 gen
->d
.dirn
= isname
;
247 akeyid
->issuer
= gens
;
248 akeyid
->serial
= serial
;
249 akeyid
->keyid
= ikeyid
;
254 X509_NAME_free(isname
);
255 ASN1_INTEGER_free(serial
);
256 ASN1_OCTET_STRING_free(ikeyid
);