2 * Copyright 2001-2020 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 #include "internal/cryptlib.h"
12 #include <openssl/objects.h>
13 #include <openssl/x509.h>
14 #include <openssl/pem.h>
15 #include <openssl/x509v3.h>
16 #include <openssl/ocsp.h>
17 #include "ocsp_local.h"
19 DEFINE_STACK_OF(OCSP_ONEREQ)
20 DEFINE_STACK_OF(OCSP_SINGLERESP)
23 * Utility functions related to sending OCSP responses and extracting
24 * relevant information from the request.
27 int OCSP_request_onereq_count(OCSP_REQUEST *req)
29 return sk_OCSP_ONEREQ_num(req->tbsRequest.requestList);
32 OCSP_ONEREQ *OCSP_request_onereq_get0(OCSP_REQUEST *req, int i)
34 return sk_OCSP_ONEREQ_value(req->tbsRequest.requestList, i);
37 OCSP_CERTID *OCSP_onereq_get0_id(OCSP_ONEREQ *one)
42 int OCSP_id_get0_info(ASN1_OCTET_STRING **piNameHash, ASN1_OBJECT **pmd,
43 ASN1_OCTET_STRING **pikeyHash,
44 ASN1_INTEGER **pserial, OCSP_CERTID *cid)
49 *pmd = cid->hashAlgorithm.algorithm;
51 *piNameHash = &cid->issuerNameHash;
53 *pikeyHash = &cid->issuerKeyHash;
55 *pserial = &cid->serialNumber;
59 int OCSP_request_is_signed(OCSP_REQUEST *req)
61 if (req->optionalSignature)
66 /* Create an OCSP response and encode an optional basic response */
67 OCSP_RESPONSE *OCSP_response_create(int status, OCSP_BASICRESP *bs)
69 OCSP_RESPONSE *rsp = NULL;
71 if ((rsp = OCSP_RESPONSE_new()) == NULL)
73 if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status)))
77 if ((rsp->responseBytes = OCSP_RESPBYTES_new()) == NULL)
79 rsp->responseBytes->responseType = OBJ_nid2obj(NID_id_pkix_OCSP_basic);
81 (bs, ASN1_ITEM_rptr(OCSP_BASICRESP), &rsp->responseBytes->response))
85 OCSP_RESPONSE_free(rsp);
89 OCSP_SINGLERESP *OCSP_basic_add1_status(OCSP_BASICRESP *rsp,
91 int status, int reason,
96 OCSP_SINGLERESP *single = NULL;
100 if (rsp->tbsResponseData.responses == NULL
101 && (rsp->tbsResponseData.responses
102 = sk_OCSP_SINGLERESP_new_null()) == NULL)
105 if ((single = OCSP_SINGLERESP_new()) == NULL)
108 if (!ASN1_TIME_to_generalizedtime(thisupd, &single->thisUpdate))
111 !ASN1_TIME_to_generalizedtime(nextupd, &single->nextUpdate))
114 OCSP_CERTID_free(single->certId);
116 if ((single->certId = OCSP_CERTID_dup(cid)) == NULL)
119 cs = single->certStatus;
120 switch (cs->type = status) {
121 case V_OCSP_CERTSTATUS_REVOKED:
123 OCSPerr(OCSP_F_OCSP_BASIC_ADD1_STATUS, OCSP_R_NO_REVOKED_TIME);
126 if ((cs->value.revoked = ri = OCSP_REVOKEDINFO_new()) == NULL)
128 if (!ASN1_TIME_to_generalizedtime(revtime, &ri->revocationTime))
130 if (reason != OCSP_REVOKED_STATUS_NOSTATUS) {
131 if ((ri->revocationReason = ASN1_ENUMERATED_new()) == NULL)
133 if (!(ASN1_ENUMERATED_set(ri->revocationReason, reason)))
138 case V_OCSP_CERTSTATUS_GOOD:
139 if ((cs->value.good = ASN1_NULL_new()) == NULL)
143 case V_OCSP_CERTSTATUS_UNKNOWN:
144 if ((cs->value.unknown = ASN1_NULL_new()) == NULL)
152 if (!(sk_OCSP_SINGLERESP_push(rsp->tbsResponseData.responses, single)))
156 OCSP_SINGLERESP_free(single);
160 /* Add a certificate to an OCSP request */
162 int OCSP_basic_add1_cert(OCSP_BASICRESP *resp, X509 *cert)
164 return X509_add_cert_new(&resp->certs, cert, X509_ADD_FLAG_UP_REF);
168 * Sign an OCSP response using the parameters contained in the digest context,
169 * set the responderID to the subject name in the signer's certificate, and
170 * include one or more optional certificates in the response.
173 int OCSP_basic_sign_ctx(OCSP_BASICRESP *brsp,
174 X509 *signer, EVP_MD_CTX *ctx,
175 STACK_OF(X509) *certs, unsigned long flags)
181 if (ctx == NULL || EVP_MD_CTX_pkey_ctx(ctx) == NULL) {
182 OCSPerr(OCSP_F_OCSP_BASIC_SIGN_CTX, OCSP_R_NO_SIGNER_KEY);
186 pkey = EVP_PKEY_CTX_get0_pkey(EVP_MD_CTX_pkey_ctx(ctx));
187 if (pkey == NULL || !X509_check_private_key(signer, pkey)) {
188 OCSPerr(OCSP_F_OCSP_BASIC_SIGN_CTX,
189 OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
193 if (!(flags & OCSP_NOCERTS)) {
194 if (!OCSP_basic_add1_cert(brsp, signer))
196 for (i = 0; i < sk_X509_num(certs); i++) {
197 X509 *tmpcert = sk_X509_value(certs, i);
198 if (!OCSP_basic_add1_cert(brsp, tmpcert))
203 rid = &brsp->tbsResponseData.responderId;
204 if (flags & OCSP_RESPID_KEY) {
205 if (!OCSP_RESPID_set_by_key(rid, signer))
207 } else if (!OCSP_RESPID_set_by_name(rid, signer)) {
211 if (!(flags & OCSP_NOTIME) &&
212 !X509_gmtime_adj(brsp->tbsResponseData.producedAt, 0))
216 * Right now, I think that not doing double hashing is the right thing.
220 if (!OCSP_BASICRESP_sign_ctx(brsp, ctx, 0))
228 int OCSP_basic_sign(OCSP_BASICRESP *brsp,
229 X509 *signer, EVP_PKEY *key, const EVP_MD *dgst,
230 STACK_OF(X509) *certs, unsigned long flags)
232 EVP_MD_CTX *ctx = EVP_MD_CTX_new();
233 EVP_PKEY_CTX *pkctx = NULL;
239 if (!EVP_DigestSignInit(ctx, &pkctx, dgst, NULL, key)) {
240 EVP_MD_CTX_free(ctx);
243 i = OCSP_basic_sign_ctx(brsp, signer, ctx, certs, flags);
244 EVP_MD_CTX_free(ctx);
248 int OCSP_RESPID_set_by_name(OCSP_RESPID *respid, X509 *cert)
250 if (!X509_NAME_set(&respid->value.byName, X509_get_subject_name(cert)))
253 respid->type = V_OCSP_RESPID_NAME;
258 int OCSP_RESPID_set_by_key_ex(OCSP_RESPID *respid, X509 *cert,
259 OPENSSL_CTX *libctx, const char *propq)
261 ASN1_OCTET_STRING *byKey = NULL;
262 unsigned char md[SHA_DIGEST_LENGTH];
263 EVP_MD *sha1 = EVP_MD_fetch(libctx, "SHA1", propq);
269 /* RFC2560 requires SHA1 */
270 if (!X509_pubkey_digest(cert, sha1, md, NULL))
273 byKey = ASN1_OCTET_STRING_new();
277 if (!(ASN1_OCTET_STRING_set(byKey, md, SHA_DIGEST_LENGTH))) {
278 ASN1_OCTET_STRING_free(byKey);
282 respid->type = V_OCSP_RESPID_KEY;
283 respid->value.byKey = byKey;
291 int OCSP_RESPID_set_by_key(OCSP_RESPID *respid, X509 *cert)
293 return OCSP_RESPID_set_by_key_ex(respid, cert, NULL, NULL);
296 int OCSP_RESPID_match_ex(OCSP_RESPID *respid, X509 *cert, OPENSSL_CTX *libctx,
302 if (respid->type == V_OCSP_RESPID_KEY) {
303 unsigned char md[SHA_DIGEST_LENGTH];
305 sha1 = EVP_MD_fetch(libctx, "SHA1", propq);
309 if (respid->value.byKey == NULL)
312 /* RFC2560 requires SHA1 */
313 if (!X509_pubkey_digest(cert, sha1, md, NULL))
316 ret = (ASN1_STRING_length(respid->value.byKey) == SHA_DIGEST_LENGTH)
317 && (memcmp(ASN1_STRING_get0_data(respid->value.byKey), md,
318 SHA_DIGEST_LENGTH) == 0);
319 } else if (respid->type == V_OCSP_RESPID_NAME) {
320 if (respid->value.byName == NULL)
323 return X509_NAME_cmp(respid->value.byName,
324 X509_get_subject_name(cert)) == 0;
332 int OCSP_RESPID_match(OCSP_RESPID *respid, X509 *cert)
334 return OCSP_RESPID_match_ex(respid, cert, NULL, NULL);