/* ocsp_srv.c */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project 2001.
*/
/* ====================================================================
* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include <cryptlib.h>
#include <openssl/objects.h>
#include <openssl/rand.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/x509v3.h>
#include <openssl/ocsp.h>
/* Utility functions related to sending OCSP responses and extracting
* relevant information from the request.
*/
int OCSP_request_onereq_count(OCSP_REQUEST *req)
{
return sk_OCSP_ONEREQ_num(req->tbsRequest->requestList);
}
OCSP_ONEREQ *OCSP_request_onereq_get0(OCSP_REQUEST *req, int i)
{
return sk_OCSP_ONEREQ_value(req->tbsRequest->requestList, i);
}
OCSP_CERTID *OCSP_onereq_get0_id(OCSP_ONEREQ *one)
{
return one->reqCert;
}
int OCSP_id_get0_info(ASN1_OCTET_STRING **piNameHash, ASN1_OBJECT **pmd,
ASN1_OCTET_STRING **pikeyHash,
ASN1_INTEGER **pserial, OCSP_CERTID *cid)
{
if (!cid) return 0;
if (pmd) *pmd = cid->hashAlgorithm->algorithm;
if(piNameHash) *piNameHash = cid->issuerNameHash;
if (pikeyHash) *pikeyHash = cid->issuerKeyHash;
if (pserial) *pserial = cid->serialNumber;
return 1;
}
int OCSP_request_is_signed(OCSP_REQUEST *req)
{
if(req->optionalSignature) return 1;
return 0;
}
/* Create an OCSP response and encode an optional basic response */
OCSP_RESPONSE *OCSP_response_create(int status, OCSP_BASICRESP *bs)
{
OCSP_RESPONSE *rsp = NULL;
if (!(rsp = OCSP_RESPONSE_new())) goto err;
if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status))) goto err;
if (!bs) return rsp;
if (!(rsp->responseBytes = OCSP_RESPBYTES_new())) goto err;
rsp->responseBytes->responseType = OBJ_nid2obj(NID_id_pkix_OCSP_basic);
if (!ASN1_item_pack(bs, ASN1_ITEM_rptr(OCSP_BASICRESP), &rsp->responseBytes->response))
goto err;
return rsp;
err:
if (rsp) OCSP_RESPONSE_free(rsp);
return NULL;
}
OCSP_SINGLERESP *OCSP_basic_add1_status(OCSP_BASICRESP *rsp,
OCSP_CERTID *cid,
int status, int reason,
ASN1_TIME *revtime,
ASN1_TIME *thisupd, ASN1_TIME *nextupd)
{
OCSP_SINGLERESP *single = NULL;
OCSP_CERTSTATUS *cs;
OCSP_REVOKEDINFO *ri;
if(!rsp->tbsResponseData->responses &&
!(rsp->tbsResponseData->responses = sk_OCSP_SINGLERESP_new_null()))
goto err;
if (!(single = OCSP_SINGLERESP_new()))
goto err;
if (!ASN1_TIME_to_generalizedtime(thisupd, &single->thisUpdate))
goto err;
if (nextupd &&
!ASN1_TIME_to_generalizedtime(nextupd, &single->nextUpdate))
goto err;
OCSP_CERTID_free(single->certId);
if(!(single->certId = OCSP_CERTID_dup(cid)))
goto err;
cs = single->certStatus;
switch(cs->type = status)
{
case V_OCSP_CERTSTATUS_REVOKED:
if (!revtime)
{
OCSPerr(OCSP_F_OCSP_BASIC_ADD1_STATUS,OCSP_R_NO_REVOKED_TIME);
goto err;
}
if (!(cs->value.revoked = ri = OCSP_REVOKEDINFO_new())) goto err;
if (!ASN1_TIME_to_generalizedtime(revtime, &ri->revocationTime))
goto err;
if (reason != OCSP_REVOKED_STATUS_NOSTATUS)
{
if (!(ri->revocationReason = ASN1_ENUMERATED_new()))
goto err;
if (!(ASN1_ENUMERATED_set(ri->revocationReason,
reason)))
goto err;
}
break;
case V_OCSP_CERTSTATUS_GOOD:
cs->value.good = ASN1_NULL_new();
break;
case V_OCSP_CERTSTATUS_UNKNOWN:
cs->value.unknown = ASN1_NULL_new();
break;
default:
goto err;
}
if (!(sk_OCSP_SINGLERESP_push(rsp->tbsResponseData->responses, single)))
goto err;
return single;
err:
OCSP_SINGLERESP_free(single);
return NULL;
}
/* Add a certificate to an OCSP request */
int OCSP_basic_add1_cert(OCSP_BASICRESP *resp, X509 *cert)
{
if (!resp->certs && !(resp->certs = sk_X509_new_null()))
return 0;
if(!sk_X509_push(resp->certs, cert)) return 0;
CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509);
return 1;
}
int OCSP_basic_sign(OCSP_BASICRESP *brsp,
X509 *signer, EVP_PKEY *key, const EVP_MD *dgst,
STACK_OF(X509) *certs, unsigned long flags)
{
int i;
OCSP_RESPID *rid;
if (!X509_check_private_key(signer, key))
{
OCSPerr(OCSP_F_OCSP_BASIC_SIGN, OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
goto err;
}
if(!(flags & OCSP_NOCERTS))
{
if(!OCSP_basic_add1_cert(brsp, signer))
goto err;
for (i = 0; i < sk_X509_num(certs); i++)
{
X509 *tmpcert = sk_X509_value(certs, i);
if(!OCSP_basic_add1_cert(brsp, tmpcert))
goto err;
}
}
rid = brsp->tbsResponseData->responderId;
if (flags & OCSP_RESPID_KEY)
{
unsigned char md[SHA_DIGEST_LENGTH];
X509_pubkey_digest(signer, EVP_sha1(), md, NULL);
if (!(rid->value.byKey = ASN1_OCTET_STRING_new()))
goto err;
if (!(ASN1_OCTET_STRING_set(rid->value.byKey, md, SHA_DIGEST_LENGTH)))
goto err;
rid->type = V_OCSP_RESPID_KEY;
}
else
{
if (!X509_NAME_set(&rid->value.byName,
X509_get_subject_name(signer)))
goto err;
rid->type = V_OCSP_RESPID_NAME;
}
if (!(flags & OCSP_NOTIME) &&
!X509_gmtime_adj(brsp->tbsResponseData->producedAt, 0))
goto err;
/* Right now, I think that not doing double hashing is the right
thing. -- Richard Levitte */
if (!OCSP_BASICRESP_sign(brsp, key, dgst, 0)) goto err;
return 1;
err:
return 0;
}