]> git.ipfire.org Git - thirdparty/openssl.git/blame - crypto/ocsp/ocsp_srv.c
Various OCSP responder utility functions.
[thirdparty/openssl.git] / crypto / ocsp / ocsp_srv.c
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1/* ocsp_srv.c */
2/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
3 * project 2001.
4 */
5/* ====================================================================
6 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
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
18 * distribution.
19 *
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/)"
24 *
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 * openssl-core@openssl.org.
29 *
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.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
38 *
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 * ====================================================================
52 *
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).
56 *
57 */
58
59#include <stdio.h>
60#include <cryptlib.h>
61#include <openssl/objects.h>
62#include <openssl/rand.h>
63#include <openssl/x509.h>
64#include <openssl/pem.h>
65#include <openssl/x509v3.h>
66#include <openssl/ocsp.h>
67
68/* Utility functions related to sending OCSP responses and extracting
69 * relevant information from the request.
70 */
71
72int OCSP_request_onereq_count(OCSP_REQUEST *req)
73 {
74 return sk_OCSP_ONEREQ_num(req->tbsRequest->requestList);
75 }
76
77OCSP_ONEREQ *OCSP_request_onereq_get0(OCSP_REQUEST *req, int i)
78 {
79 return sk_OCSP_ONEREQ_value(req->tbsRequest->requestList, i);
80 }
81
82OCSP_CERTID *OCSP_onereq_get0_id(OCSP_ONEREQ *one)
83 {
84 return one->reqCert;
85 }
86
87int OCSP_id_get0_info(ASN1_OCTET_STRING **piNameHash, ASN1_OBJECT **pmd,
88 ASN1_OCTET_STRING **pikeyHash,
89 ASN1_INTEGER **pserial, OCSP_CERTID *cid)
90 {
91 if (!cid) return 0;
92 if (pmd) *pmd = cid->hashAlgorithm->algorithm;
93 if(piNameHash) *piNameHash = cid->issuerNameHash;
94 if (pikeyHash) *pikeyHash = cid->issuerKeyHash;
95 if (pserial) *pserial = cid->serialNumber;
96 return 1;
97 }
98
99/* Create an OCSP response and encode an optional basic response */
100OCSP_RESPONSE *OCSP_response_create(int status, OCSP_BASICRESP *bs)
101 {
102 OCSP_RESPONSE *rsp = NULL;
103
104 if (!(rsp = OCSP_RESPONSE_new())) goto err;
105 if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status))) goto err;
106 if (!bs) return rsp;
107 if (!(rsp->responseBytes = OCSP_RESPBYTES_new())) goto err;
108 rsp->responseBytes->responseType = OBJ_nid2obj(NID_id_pkix_OCSP_basic);
109 if (!ASN1_item_pack(bs, &OCSP_BASICRESP_it, &rsp->responseBytes->response))
110 goto err;
111 return rsp;
112err:
113 if (rsp) OCSP_RESPONSE_free(rsp);
114 return NULL;
115 }
116
117
118OCSP_SINGLERESP *OCSP_basic_add1_status(OCSP_BASICRESP *rsp,
119 OCSP_CERTID *cid,
120 int status, int reason,
121 ASN1_TIME *revtime,
122 ASN1_TIME *thisupd, ASN1_TIME *nextupd)
123 {
124 OCSP_SINGLERESP *single = NULL;
125 OCSP_CERTSTATUS *cs;
126 OCSP_REVOKEDINFO *ri;
127
128 if(!rsp->tbsResponseData->responses &&
129 !(rsp->tbsResponseData->responses = sk_OCSP_SINGLERESP_new_null()))
130 goto err;
131
132 if (!(single = OCSP_SINGLERESP_new()))
133 goto err;
134
135
136
137 if (!ASN1_TIME_to_generalizedtime(thisupd, &single->thisUpdate))
138 goto err;
139 if (nextupd &&
140 !ASN1_TIME_to_generalizedtime(nextupd, &single->nextUpdate))
141 goto err;
142
143 OCSP_CERTID_free(single->certId);
144
145 if(!(single->certId = OCSP_CERTID_dup(cid)))
146 goto err;
147
148 cs = single->certStatus;
149 switch(cs->type = status)
150 {
151 case V_OCSP_CERTSTATUS_REVOKED:
152 if (!revtime)
153 {
154 OCSPerr(OCSP_F_OCSP_BASIC_ADD1_STATUS,OCSP_R_NO_REVOKED_TIME);
155 goto err;
156 }
157 if (!(cs->value.revoked = ri = OCSP_REVOKEDINFO_new())) goto err;
158 if (!ASN1_TIME_to_generalizedtime(revtime, &ri->revocationTime))
159 goto err;
160 if (reason != OCSP_REVOKED_STATUS_NOSTATUS)
161 {
162 if (!(ri->revocationReason = ASN1_ENUMERATED_new()))
163 goto err;
164 if (!(ASN1_ENUMERATED_set(ri->revocationReason,
165 reason)))
166 goto err;
167 }
168 break;
169
170 case V_OCSP_CERTSTATUS_GOOD:
171 cs->value.good = ASN1_NULL_new();
172 break;
173
174 case V_OCSP_CERTSTATUS_UNKNOWN:
175 cs->value.unknown = ASN1_NULL_new();
176 break;
177
178 default:
179 goto err;
180
181 }
182 if (!(sk_OCSP_SINGLERESP_push(rsp->tbsResponseData->responses, single)))
183 goto err;
184 return single;
185err:
186 OCSP_SINGLERESP_free(single);
187 return NULL;
188 }
189
190/* Add a certificate to an OCSP request */
191
192int OCSP_basic_add1_cert(OCSP_BASICRESP *resp, X509 *cert)
193 {
194 if (!resp->certs && !(resp->certs = sk_X509_new_null()))
195 return 0;
196
197 if(!sk_X509_push(resp->certs, cert)) return 0;
198 CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509);
199 return 1;
200 }
201
202int OCSP_basic_sign(OCSP_BASICRESP *brsp,
203 X509 *signer, EVP_PKEY *key, const EVP_MD *dgst,
204 STACK_OF(X509) *certs, unsigned long flags)
205 {
206 int i;
207 OCSP_RESPID *rid;
208
209 if(!(flags & OCSP_NOCERTS) && !OCSP_basic_add1_cert(brsp, signer))
210 goto err;
211
212 for (i = 0; i < sk_X509_num(certs); i++)
213 {
214 X509 *tmpcert = sk_X509_value(certs, i);
215 if(!OCSP_basic_add1_cert(brsp, tmpcert))
216 goto err;
217 }
218
219 rid = brsp->tbsResponseData->responderId;
220 if (flags & OCSP_RESPID_KEY)
221 {
222 unsigned char md[SHA_DIGEST_LENGTH];
223 X509_pubkey_digest(signer, EVP_sha1(), md, NULL);
224 if (!(rid->value.byKey = ASN1_OCTET_STRING_new()))
225 goto err;
226 if (!(ASN1_OCTET_STRING_set(rid->value.byKey, md, SHA_DIGEST_LENGTH)))
227 goto err;
228 rid->type = V_OCSP_RESPID_KEY;
229 }
230 else
231 {
232 if (!X509_NAME_set(&rid->value.byName,
233 X509_get_subject_name(signer)))
234 goto err;
235 rid->type = V_OCSP_RESPID_NAME;
236 }
237
238 if (!(flags & OCSP_NOTIME) &&
239 !X509_gmtime_adj(brsp->tbsResponseData->producedAt, 0))
240 goto err;
241
242 /* Right now, I think that not doing double hashing is the right
243 thing. -- Richard Levitte */
244
245 if (!OCSP_BASICRESP_sign(brsp, key, dgst, 0)) goto err;
246
247 return 1;
248err:
249 return 0;
250 }