2 * Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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>
20 * Utility functions related to sending OCSP responses and extracting
21 * relevant information from the request.
24 int OCSP_request_onereq_count(OCSP_REQUEST *req)
26 return sk_OCSP_ONEREQ_num(req->tbsRequest.requestList);
29 OCSP_ONEREQ *OCSP_request_onereq_get0(OCSP_REQUEST *req, int i)
31 return sk_OCSP_ONEREQ_value(req->tbsRequest.requestList, i);
34 OCSP_CERTID *OCSP_onereq_get0_id(OCSP_ONEREQ *one)
39 int OCSP_id_get0_info(ASN1_OCTET_STRING **piNameHash, ASN1_OBJECT **pmd,
40 ASN1_OCTET_STRING **pikeyHash,
41 ASN1_INTEGER **pserial, OCSP_CERTID *cid)
46 *pmd = cid->hashAlgorithm.algorithm;
48 *piNameHash = &cid->issuerNameHash;
50 *pikeyHash = &cid->issuerKeyHash;
52 *pserial = &cid->serialNumber;
56 int OCSP_request_is_signed(OCSP_REQUEST *req)
58 if (req->optionalSignature)
63 /* Create an OCSP response and encode an optional basic response */
64 OCSP_RESPONSE *OCSP_response_create(int status, OCSP_BASICRESP *bs)
66 OCSP_RESPONSE *rsp = NULL;
68 if ((rsp = OCSP_RESPONSE_new()) == NULL)
70 if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status)))
74 if ((rsp->responseBytes = OCSP_RESPBYTES_new()) == NULL)
76 rsp->responseBytes->responseType = OBJ_nid2obj(NID_id_pkix_OCSP_basic);
78 (bs, ASN1_ITEM_rptr(OCSP_BASICRESP), &rsp->responseBytes->response))
82 OCSP_RESPONSE_free(rsp);
86 OCSP_SINGLERESP *OCSP_basic_add1_status(OCSP_BASICRESP *rsp,
88 int status, int reason,
93 OCSP_SINGLERESP *single = NULL;
97 if (rsp->tbsResponseData.responses == NULL
98 && (rsp->tbsResponseData.responses
99 = sk_OCSP_SINGLERESP_new_null()) == NULL)
102 if ((single = OCSP_SINGLERESP_new()) == NULL)
105 if (!ASN1_TIME_to_generalizedtime(thisupd, &single->thisUpdate))
108 !ASN1_TIME_to_generalizedtime(nextupd, &single->nextUpdate))
111 OCSP_CERTID_free(single->certId);
113 if ((single->certId = OCSP_CERTID_dup(cid)) == NULL)
116 cs = single->certStatus;
117 switch (cs->type = status) {
118 case V_OCSP_CERTSTATUS_REVOKED:
120 OCSPerr(OCSP_F_OCSP_BASIC_ADD1_STATUS, OCSP_R_NO_REVOKED_TIME);
123 if ((cs->value.revoked = ri = OCSP_REVOKEDINFO_new()) == NULL)
125 if (!ASN1_TIME_to_generalizedtime(revtime, &ri->revocationTime))
127 if (reason != OCSP_REVOKED_STATUS_NOSTATUS) {
128 if ((ri->revocationReason = ASN1_ENUMERATED_new()) == NULL)
130 if (!(ASN1_ENUMERATED_set(ri->revocationReason, reason)))
135 case V_OCSP_CERTSTATUS_GOOD:
136 if ((cs->value.good = ASN1_NULL_new()) == NULL)
140 case V_OCSP_CERTSTATUS_UNKNOWN:
141 if ((cs->value.unknown = ASN1_NULL_new()) == NULL)
149 if (!(sk_OCSP_SINGLERESP_push(rsp->tbsResponseData.responses, single)))
153 OCSP_SINGLERESP_free(single);
157 /* Add a certificate to an OCSP request */
159 int OCSP_basic_add1_cert(OCSP_BASICRESP *resp, X509 *cert)
161 if (resp->certs == NULL
162 && (resp->certs = sk_X509_new_null()) == NULL)
165 if (!sk_X509_push(resp->certs, cert))
172 * Sign an OCSP response using the parameters contained in the digest context,
173 * set the responderID to the subject name in the signer's certificate, and
174 * include one or more optional certificates in the response.
177 int OCSP_basic_sign_ctx(OCSP_BASICRESP *brsp,
178 X509 *signer, EVP_MD_CTX *ctx,
179 STACK_OF(X509) *certs, unsigned long flags)
185 if (ctx == NULL || EVP_MD_CTX_pkey_ctx(ctx) == NULL) {
186 OCSPerr(OCSP_F_OCSP_BASIC_SIGN_CTX, OCSP_R_NO_SIGNER_KEY);
190 pkey = EVP_PKEY_CTX_get0_pkey(EVP_MD_CTX_pkey_ctx(ctx));
191 if (pkey == NULL || !X509_check_private_key(signer, pkey)) {
192 OCSPerr(OCSP_F_OCSP_BASIC_SIGN_CTX,
193 OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
197 if (!(flags & OCSP_NOCERTS)) {
198 if (!OCSP_basic_add1_cert(brsp, signer))
200 for (i = 0; i < sk_X509_num(certs); i++) {
201 X509 *tmpcert = sk_X509_value(certs, i);
202 if (!OCSP_basic_add1_cert(brsp, tmpcert))
207 rid = &brsp->tbsResponseData.responderId;
208 if (flags & OCSP_RESPID_KEY) {
209 if (!OCSP_RESPID_set_by_key(rid, signer))
211 } else if (!OCSP_RESPID_set_by_name(rid, signer)) {
215 if (!(flags & OCSP_NOTIME) &&
216 !X509_gmtime_adj(brsp->tbsResponseData.producedAt, 0))
220 * Right now, I think that not doing double hashing is the right thing.
224 if (!OCSP_BASICRESP_sign_ctx(brsp, ctx, 0))
232 int OCSP_basic_sign(OCSP_BASICRESP *brsp,
233 X509 *signer, EVP_PKEY *key, const EVP_MD *dgst,
234 STACK_OF(X509) *certs, unsigned long flags)
236 EVP_MD_CTX *ctx = EVP_MD_CTX_new();
237 EVP_PKEY_CTX *pkctx = NULL;
240 if (!EVP_DigestSignInit(ctx, &pkctx, dgst, NULL, key)) {
241 EVP_MD_CTX_free(ctx);
244 i = OCSP_basic_sign_ctx(brsp, signer, ctx, certs, flags);
245 EVP_MD_CTX_free(ctx);
249 int OCSP_RESPID_set_by_name(OCSP_RESPID *respid, X509 *cert)
251 if (!X509_NAME_set(&respid->value.byName, X509_get_subject_name(cert)))
254 respid->type = V_OCSP_RESPID_NAME;
259 int OCSP_RESPID_set_by_key(OCSP_RESPID *respid, X509 *cert)
261 ASN1_OCTET_STRING *byKey = NULL;
262 unsigned char md[SHA_DIGEST_LENGTH];
264 /* RFC2560 requires SHA1 */
265 if (!X509_pubkey_digest(cert, EVP_sha1(), md, NULL))
268 byKey = ASN1_OCTET_STRING_new();
272 if (!(ASN1_OCTET_STRING_set(byKey, md, SHA_DIGEST_LENGTH))) {
273 ASN1_OCTET_STRING_free(byKey);
277 respid->type = V_OCSP_RESPID_KEY;
278 respid->value.byKey = byKey;
283 int OCSP_RESPID_match(OCSP_RESPID *respid, X509 *cert)
285 if (respid->type == V_OCSP_RESPID_KEY) {
286 unsigned char md[SHA_DIGEST_LENGTH];
288 if (respid->value.byKey == NULL)
291 /* RFC2560 requires SHA1 */
292 if (!X509_pubkey_digest(cert, EVP_sha1(), md, NULL))
295 return (ASN1_STRING_length(respid->value.byKey) == SHA_DIGEST_LENGTH)
296 && (memcmp(ASN1_STRING_get0_data(respid->value.byKey), md,
297 SHA_DIGEST_LENGTH) == 0);
298 } else if (respid->type == V_OCSP_RESPID_NAME) {
299 if (respid->value.byName == NULL)
302 return X509_NAME_cmp(respid->value.byName,
303 X509_get_subject_name(cert)) == 0;