2 /* Written by Tom Titchener <Tom_Titchener@groove.net> for the OpenSSL
6 This file was transfered to Richard Levitte from CertCo by Kathy
7 Weinhold in mid-spring 2000 to be included in OpenSSL or released
10 /* ====================================================================
11 * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in
22 * the documentation and/or other materials provided with the
25 * 3. All advertising materials mentioning features or use of this
26 * software must display the following acknowledgment:
27 * "This product includes software developed by the OpenSSL Project
28 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
30 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
31 * endorse or promote products derived from this software without
32 * prior written permission. For written permission, please contact
33 * openssl-core@openssl.org.
35 * 5. Products derived from this software may not be called "OpenSSL"
36 * nor may "OpenSSL" appear in their names without prior written
37 * permission of the OpenSSL Project.
39 * 6. Redistributions of any form whatsoever must retain the following
41 * "This product includes software developed by the OpenSSL Project
42 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
44 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
45 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
46 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
47 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
48 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
49 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
51 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
53 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
54 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
55 * OF THE POSSIBILITY OF SUCH DAMAGE.
56 * ====================================================================
58 * This product includes cryptographic software written by Eric Young
59 * (eay@cryptsoft.com). This product includes software written by Tim
60 * Hudson (tjh@cryptsoft.com).
66 #include <openssl/objects.h>
67 #include <openssl/rand.h>
68 #include <openssl/x509.h>
69 #include <openssl/pem.h>
70 #include <openssl/x509v3.h>
71 #include <openssl/ocsp.h>
73 /* Convert a certificate and its issuer to an OCSP_CERTID */
75 OCSP_CERTID *OCSP_cert_to_id(const EVP_MD *dgst, X509 *subject, X509 *issuer)
79 ASN1_BIT_STRING *ikey;
81 if(!dgst) dgst = EVP_sha1();
83 iname = X509_get_issuer_name(subject);
84 serial = X509_get_serialNumber(subject);
85 ikey = issuer->cert_info->key->public_key;
86 return OCSP_cert_id_new(dgst, iname, ikey, serial);
90 OCSP_CERTID *OCSP_cert_id_new(const EVP_MD *dgst,
91 X509_NAME *issuerName,
92 ASN1_BIT_STRING* issuerKey,
93 ASN1_INTEGER *serialNumber)
98 OCSP_CERTID *cid = NULL;
99 unsigned char md[EVP_MAX_MD_SIZE];
102 if (!(cid = OCSP_CERTID_new())) goto err;
104 alg = cid->hashAlgorithm;
105 if (alg->algorithm != NULL) ASN1_OBJECT_free(alg->algorithm);
106 if ((nid = EVP_MD_type(dgst)) == NID_undef)
108 OCSPerr(OCSP_F_CERT_ID_NEW,OCSP_R_UNKNOWN_NID);
111 if (!(alg->algorithm=OBJ_nid2obj(nid))) goto err;
112 if ((alg->parameter=ASN1_TYPE_new()) == NULL) goto err;
113 alg->parameter->type=V_ASN1_NULL;
115 if (!X509_NAME_digest(issuerName, dgst, md, &i)) goto digerr;
116 if (!(ASN1_OCTET_STRING_set(cid->issuerNameHash, md, i))) goto err;
118 /* Calculate the issuerKey hash, excluding tag and length */
119 EVP_DigestInit(&ctx,dgst);
120 EVP_DigestUpdate(&ctx,issuerKey->data, issuerKey->length);
121 EVP_DigestFinal(&ctx,md,&i);
123 if (!(ASN1_OCTET_STRING_set(cid->issuerKeyHash, md, i))) goto err;
125 if (cid->serialNumber != NULL) ASN1_INTEGER_free(cid->serialNumber);
126 if (!(cid->serialNumber = ASN1_INTEGER_dup(serialNumber))) goto err;
129 OCSPerr(OCSP_F_CERT_ID_NEW,OCSP_R_DIGEST_ERR);
131 if (cid) OCSP_CERTID_free(cid);
135 OCSP_CERTSTATUS *OCSP_cert_status_new(int status, int reason, char *tim)
137 OCSP_REVOKEDINFO *ri;
138 OCSP_CERTSTATUS *cs = NULL;
140 if (!(cs = OCSP_CERTSTATUS_new())) goto err;
141 if ((cs->type = status) == V_OCSP_CERTSTATUS_REVOKED)
145 OCSPerr(OCSP_F_CERT_STATUS_NEW,OCSP_R_REVOKED_NO_TIME);
148 if (!(cs->value.revoked = ri = OCSP_REVOKEDINFO_new())) goto err;
149 if (!ASN1_GENERALIZEDTIME_set_string(ri->revocationTime,tim))
151 if (reason != OCSP_REVOKED_STATUS_NOSTATUS)
153 if (!(ri->revocationReason = ASN1_ENUMERATED_new()))
155 if (!(ASN1_ENUMERATED_set(ri->revocationReason,
162 if (cs) OCSP_CERTSTATUS_free(cs);
166 int OCSP_id_cmp(OCSP_CERTID *a, OCSP_CERTID *b)
169 ret = OBJ_cmp(a->hashAlgorithm->algorithm, b->hashAlgorithm->algorithm);
171 ret = ASN1_OCTET_STRING_cmp(a->issuerNameHash, b->issuerNameHash);
173 ret = ASN1_OCTET_STRING_cmp(a->issuerKeyHash, b->issuerKeyHash);
175 return ASN1_INTEGER_cmp(a->serialNumber, b->serialNumber);
178 OCSP_BASICRESP *OCSP_basic_response_new(int type, X509* cert)
183 OCSP_BASICRESP *rsp = NULL;
184 unsigned char md[SHA_DIGEST_LENGTH];
186 if (!(rsp = OCSP_BASICRESP_new())) goto err;
187 rid = rsp->tbsResponseData->responderId;
188 switch (rid->type = type)
190 case V_OCSP_RESPID_NAME:
191 /* cert is user cert */
192 if (!(rid->value.byName =
193 X509_NAME_dup(X509_get_subject_name(cert))))
196 case V_OCSP_RESPID_KEY:
197 /* cert is issuer cert */
198 /* SHA-1 hash of responder's public key
199 * (excluding the tag and length fields)
201 bs = cert->cert_info->key->public_key;
202 SHA1(ASN1_STRING_data((ASN1_STRING*)bs),
203 ASN1_STRING_length((ASN1_STRING*)bs), md);
204 if (!(rid->value.byKey = ASN1_OCTET_STRING_new()))
206 if (!(ASN1_OCTET_STRING_set(rid->value.byKey,
211 OCSPerr(OCSP_F_BASIC_RESPONSE_NEW,OCSP_R_BAD_TAG);
216 if (!(ASN1_GENERALIZEDTIME_set(rsp->tbsResponseData->producedAt, t)))
218 if (!(rsp->tbsResponseData->responses = sk_OCSP_SINGLERESP_new(NULL))) goto err;
221 if (rsp) OCSP_BASICRESP_free(rsp);
225 int OCSP_basic_response_add(OCSP_BASICRESP *rsp,
227 OCSP_CERTSTATUS *cst,
231 OCSP_SINGLERESP *single = NULL;
233 if (!(single = OCSP_SINGLERESP_new())) goto err;
234 if (single->certId) OCSP_CERTID_free(single->certId);
235 if (!(single->certId = OCSP_CERTID_dup(cid))) goto err;
236 if (single->certStatus) OCSP_CERTSTATUS_free(single->certStatus);
237 if (!(single->certStatus = OCSP_CERTSTATUS_dup(cst))) goto err;
238 if (!ASN1_GENERALIZEDTIME_set_string(single->thisUpdate,this))goto err;
241 if (!(single->nextUpdate = ASN1_GENERALIZEDTIME_new()))
243 if (!ASN1_GENERALIZEDTIME_set_string(single->nextUpdate,next))
246 if (!sk_OCSP_SINGLERESP_push(rsp->tbsResponseData->responses,single)) goto err;
249 if (single) OCSP_SINGLERESP_free(single);
253 int OCSP_basic_response_sign(OCSP_BASICRESP *brsp,
256 STACK_OF(X509) *certs)
260 /* Right now, I think that not doing double hashing is the right
261 thing. -- Richard Levitte */
262 if (!OCSP_BASICRESP_sign(brsp, key, dgst, 0)) goto err;
265 if (!(brsp->certs = sk_X509_dup(certs))) goto err;
266 for (i = 0; i < sk_X509_num(brsp->certs); i++)
268 sk_X509_set(brsp->certs, i,
269 X509_dup(sk_X509_value(certs, i)));
270 if (! sk_X509_value(brsp->certs, i))
279 OCSP_RESPONSE *OCSP_response_new(int status,
284 OCSP_RESPONSE *rsp = NULL;
286 if (!(rsp = OCSP_RESPONSE_new())) goto err;
287 if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status))) goto err;
288 if (!(rsp->responseBytes = OCSP_RESPBYTES_new())) goto err;
289 if (rsp->responseBytes->responseType) ASN1_OBJECT_free(rsp->responseBytes->responseType);
290 if (!(rsp->responseBytes->responseType = OBJ_nid2obj(nid))) goto err;
291 if (!ASN1_STRING_encode((ASN1_STRING*)rsp->responseBytes->response,
292 i2d, data, NULL)) goto err;
295 if (rsp) OCSP_RESPONSE_free(rsp);
299 /* XXX assumes certs in signature are sorted root to leaf XXX */
300 int OCSP_request_verify(OCSP_REQUEST *req, EVP_PKEY *pkey)
304 if (!req->optionalSignature) return 0;
307 if (!(sk = req->optionalSignature->certs)) return 0;
308 if (!(pkey=X509_get_pubkey(sk_X509_value(sk, sk_X509_num(sk)-1))))
310 OCSPerr(OCSP_F_REQUEST_VERIFY,OCSP_R_NO_PUBLIC_KEY);
314 return OCSP_REQUEST_verify(req, pkey);
317 int OCSP_response_verify(OCSP_RESPONSE *rsp, EVP_PKEY *pkey)
322 OCSP_BASICRESP *br = NULL;
324 if ((rb = rsp->responseBytes) == NULL)
326 OCSPerr(OCSP_F_RESPONSE_VERIFY,OCSP_R_NO_RESPONSE_DATA);
329 if (OBJ_obj2nid(rb->responseType) != NID_id_pkix_OCSP_basic)
331 OCSPerr(OCSP_F_RESPONSE_VERIFY,OCSP_R_BAD_TAG);
334 p = ASN1_STRING_data(rb->response);
335 i = ASN1_STRING_length(rb->response);
336 if (!(d2i_OCSP_BASICRESP(&br, &p, i))) return 0;
337 r = OCSP_basic_response_verify(br, pkey);
338 OCSP_BASICRESP_free(br);
342 int OCSP_basic_response_verify(OCSP_BASICRESP *rsp, EVP_PKEY *pkey)
349 OCSPerr(OCSP_F_BASIC_RESPONSE_VERIFY,OCSP_R_NO_SIGNATURE);
354 if (!(sk = rsp->certs))
356 OCSPerr(OCSP_F_BASIC_RESPONSE_VERIFY,OCSP_R_NO_CERTIFICATE);
359 if (!(pkey=X509_get_pubkey(sk_X509_value(sk, sk_X509_num(sk)-1))))
361 OCSPerr(OCSP_F_BASIC_RESPONSE_VERIFY,OCSP_R_NO_PUBLIC_KEY);
365 ret = OCSP_BASICRESP_verify(rsp, pkey, 0);