2 * Copyright 2001-2016 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))
171 int OCSP_basic_sign_ctx(OCSP_BASICRESP *brsp,
172 X509 *signer, EVP_MD_CTX *ctx,
173 STACK_OF(X509) *certs, unsigned long flags)
178 if (!ctx || !EVP_MD_CTX_pkey_ctx(ctx) || !EVP_PKEY_CTX_get0_pkey(EVP_MD_CTX_pkey_ctx(ctx)) ||
179 !X509_check_private_key(signer, EVP_PKEY_CTX_get0_pkey(EVP_MD_CTX_pkey_ctx(ctx)))) {
180 OCSPerr(OCSP_F_OCSP_BASIC_SIGN_CTX,
181 OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
185 if (!(flags & OCSP_NOCERTS)) {
186 if (!OCSP_basic_add1_cert(brsp, signer))
188 for (i = 0; i < sk_X509_num(certs); i++) {
189 X509 *tmpcert = sk_X509_value(certs, i);
190 if (!OCSP_basic_add1_cert(brsp, tmpcert))
195 rid = &brsp->tbsResponseData.responderId;
196 if (flags & OCSP_RESPID_KEY) {
197 if (!OCSP_RESPID_set_by_key(rid, signer))
199 } else if (!OCSP_RESPID_set_by_name(rid, signer)) {
203 if (!(flags & OCSP_NOTIME) &&
204 !X509_gmtime_adj(brsp->tbsResponseData.producedAt, 0))
208 * Right now, I think that not doing double hashing is the right thing.
212 if (!OCSP_BASICRESP_sign_ctx(brsp, ctx, 0))
220 int OCSP_basic_sign(OCSP_BASICRESP *brsp,
221 X509 *signer, EVP_PKEY *key, const EVP_MD *dgst,
222 STACK_OF(X509) *certs, unsigned long flags)
224 EVP_MD_CTX *ctx = EVP_MD_CTX_new();
225 EVP_PKEY_CTX *pkctx = NULL;
228 if (!EVP_DigestSignInit(ctx, &pkctx, dgst, NULL, key)) {
229 EVP_MD_CTX_free(ctx);
232 i = OCSP_basic_sign_ctx(brsp, signer, ctx, certs, flags);
233 EVP_MD_CTX_free(ctx);
237 int OCSP_RESPID_set_by_name(OCSP_RESPID *respid, X509 *cert)
239 if (!X509_NAME_set(&respid->value.byName, X509_get_subject_name(cert)))
242 respid->type = V_OCSP_RESPID_NAME;
247 int OCSP_RESPID_set_by_key(OCSP_RESPID *respid, X509 *cert)
249 ASN1_OCTET_STRING *byKey = NULL;
250 unsigned char md[SHA_DIGEST_LENGTH];
252 /* RFC2560 requires SHA1 */
253 if (!X509_pubkey_digest(cert, EVP_sha1(), md, NULL))
256 byKey = ASN1_OCTET_STRING_new();
260 if (!(ASN1_OCTET_STRING_set(byKey, md, SHA_DIGEST_LENGTH))) {
261 ASN1_OCTET_STRING_free(byKey);
265 respid->type = V_OCSP_RESPID_KEY;
266 respid->value.byKey = byKey;
271 int OCSP_RESPID_match(OCSP_RESPID *respid, X509 *cert)
273 if (respid->type == V_OCSP_RESPID_KEY) {
274 unsigned char md[SHA_DIGEST_LENGTH];
276 if (respid->value.byKey == NULL)
279 /* RFC2560 requires SHA1 */
280 if (!X509_pubkey_digest(cert, EVP_sha1(), md, NULL))
283 return (ASN1_STRING_length(respid->value.byKey) == SHA_DIGEST_LENGTH)
284 && (memcmp(ASN1_STRING_get0_data(respid->value.byKey), md,
285 SHA_DIGEST_LENGTH) == 0);
286 } else if (respid->type == V_OCSP_RESPID_NAME) {
287 if (respid->value.byName == NULL)
290 return X509_NAME_cmp(respid->value.byName,
291 X509_get_subject_name(cert)) == 0;