1 /* ocsp_srv.c */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) 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
72 int OCSP_request_onereq_count(OCSP_REQUEST *req)
73 {
74 return sk_OCSP_ONEREQ_num(req->tbsRequest->requestList);
75 }
76
77 OCSP_ONEREQ *OCSP_request_onereq_get0(OCSP_REQUEST *req, int i)
78 {
79 return sk_OCSP_ONEREQ_value(req->tbsRequest->requestList, i);
80 }
81
82 OCSP_CERTID *OCSP_onereq_get0_id(OCSP_ONEREQ *one)
83 {
84 return one->reqCert;
85 }
86
87 int 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 int OCSP_request_is_signed(OCSP_REQUEST *req)
100 {
101 if(req->optionalSignature) return 1;
102 return 0;
103 }
104
105 /* Create an OCSP response and encode an optional basic response */
106 OCSP_RESPONSE *OCSP_response_create(int status, OCSP_BASICRESP *bs)
107 {
108 OCSP_RESPONSE *rsp = NULL;
109
110 if (!(rsp = OCSP_RESPONSE_new())) goto err;
111 if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status))) goto err;
112 if (!bs) return rsp;
113 if (!(rsp->responseBytes = OCSP_RESPBYTES_new())) goto err;
114 rsp->responseBytes->responseType = OBJ_nid2obj(NID_id_pkix_OCSP_basic);
115 if (!ASN1_item_pack(bs, ASN1_ITEM_rptr(OCSP_BASICRESP), &rsp->responseBytes->response))
116 goto err;
117 return rsp;
118 err:
119 if (rsp) OCSP_RESPONSE_free(rsp);
120 return NULL;
121 }
122
123
124 OCSP_SINGLERESP *OCSP_basic_add1_status(OCSP_BASICRESP *rsp,
125 OCSP_CERTID *cid,
126 int status, int reason,
127 ASN1_TIME *revtime,
128 ASN1_TIME *thisupd, ASN1_TIME *nextupd)
129 {
130 OCSP_SINGLERESP *single = NULL;
131 OCSP_CERTSTATUS *cs;
132 OCSP_REVOKEDINFO *ri;
133
134 if(!rsp->tbsResponseData->responses &&
135 !(rsp->tbsResponseData->responses = sk_OCSP_SINGLERESP_new_null()))
136 goto err;
137
138 if (!(single = OCSP_SINGLERESP_new()))
139 goto err;
140
141
142
143 if (!ASN1_TIME_to_generalizedtime(thisupd, &single->thisUpdate))
144 goto err;
145 if (nextupd &&
146 !ASN1_TIME_to_generalizedtime(nextupd, &single->nextUpdate))
147 goto err;
148
149 OCSP_CERTID_free(single->certId);
150
151 if(!(single->certId = OCSP_CERTID_dup(cid)))
152 goto err;
153
154 cs = single->certStatus;
155 switch(cs->type = status)
156 {
157 case V_OCSP_CERTSTATUS_REVOKED:
158 if (!revtime)
159 {
160 OCSPerr(OCSP_F_OCSP_BASIC_ADD1_STATUS,OCSP_R_NO_REVOKED_TIME);
161 goto err;
162 }
163 if (!(cs->value.revoked = ri = OCSP_REVOKEDINFO_new())) goto err;
164 if (!ASN1_TIME_to_generalizedtime(revtime, &ri->revocationTime))
165 goto err;
166 if (reason != OCSP_REVOKED_STATUS_NOSTATUS)
167 {
168 if (!(ri->revocationReason = ASN1_ENUMERATED_new()))
169 goto err;
170 if (!(ASN1_ENUMERATED_set(ri->revocationReason,
171 reason)))
172 goto err;
173 }
174 break;
175
176 case V_OCSP_CERTSTATUS_GOOD:
177 cs->value.good = ASN1_NULL_new();
178 break;
179
180 case V_OCSP_CERTSTATUS_UNKNOWN:
181 cs->value.unknown = ASN1_NULL_new();
182 break;
183
184 default:
185 goto err;
186
187 }
188 if (!(sk_OCSP_SINGLERESP_push(rsp->tbsResponseData->responses, single)))
189 goto err;
190 return single;
191 err:
192 OCSP_SINGLERESP_free(single);
193 return NULL;
194 }
195
196 /* Add a certificate to an OCSP request */
197
198 int OCSP_basic_add1_cert(OCSP_BASICRESP *resp, X509 *cert)
199 {
200 if (!resp->certs && !(resp->certs = sk_X509_new_null()))
201 return 0;
202
203 if(!sk_X509_push(resp->certs, cert)) return 0;
204 CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509);
205 return 1;
206 }
207
208 int OCSP_basic_sign(OCSP_BASICRESP *brsp,
209 X509 *signer, EVP_PKEY *key, const EVP_MD *dgst,
210 STACK_OF(X509) *certs, unsigned long flags)
211 {
212 int i;
213 OCSP_RESPID *rid;
214
215 if (!X509_check_private_key(signer, key))
216 {
217 OCSPerr(OCSP_F_OCSP_BASIC_SIGN, OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
218 goto err;
219 }
220
221 if(!(flags & OCSP_NOCERTS))
222 {
223 if(!OCSP_basic_add1_cert(brsp, signer))
224 goto err;
225 for (i = 0; i < sk_X509_num(certs); i++)
226 {
227 X509 *tmpcert = sk_X509_value(certs, i);
228 if(!OCSP_basic_add1_cert(brsp, tmpcert))
229 goto err;
230 }
231 }
232
233 rid = brsp->tbsResponseData->responderId;
234 if (flags & OCSP_RESPID_KEY)
235 {
236 unsigned char md[SHA_DIGEST_LENGTH];
237 X509_pubkey_digest(signer, EVP_sha1(), md, NULL);
238 if (!(rid->value.byKey = ASN1_OCTET_STRING_new()))
239 goto err;
240 if (!(ASN1_OCTET_STRING_set(rid->value.byKey, md, SHA_DIGEST_LENGTH)))
241 goto err;
242 rid->type = V_OCSP_RESPID_KEY;
243 }
244 else
245 {
246 if (!X509_NAME_set(&rid->value.byName,
247 X509_get_subject_name(signer)))
248 goto err;
249 rid->type = V_OCSP_RESPID_NAME;
250 }
251
252 if (!(flags & OCSP_NOTIME) &&
253 !X509_gmtime_adj(brsp->tbsResponseData->producedAt, 0))
254 goto err;
255
256 /* Right now, I think that not doing double hashing is the right
257 thing. -- Richard Levitte */
258
259 if (!OCSP_BASICRESP_sign(brsp, key, dgst, 0)) goto err;
260
261 return 1;
262 err:
263 return 0;
264 }