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