crypto/ocsp/ocsp_cl.c - third_party/openssl - Git at Google

 /*
  * Copyright 2001-2021 The OpenSSL Project Authors. All Rights Reserved.
  *
  * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html
  */

 #include <stdio.h>
 #include <time.h>
 #include "internal/cryptlib.h"
 #include <openssl/asn1.h>
 #include <openssl/objects.h>
 #include <openssl/x509.h>
 #include <openssl/pem.h>
 #include <openssl/x509v3.h>
 #include <openssl/ocsp.h>
 #include "ocsp_local.h"

 /*
  * Utility functions related to sending OCSP requests and extracting relevant
  * information from the response.
  */

 /*
  * Add an OCSP_CERTID to an OCSP request. Return new OCSP_ONEREQ pointer:
  * useful if we want to add extensions.
  */
 OCSP_ONEREQ *OCSP_request_add0_id(OCSP_REQUEST *req, OCSP_CERTID *cid)
 {
     OCSP_ONEREQ *one = NULL;

     if ((one = OCSP_ONEREQ_new()) == NULL)
         return NULL;
     OCSP_CERTID_free(one->reqCert);
     one->reqCert = cid;
     if (req && !sk_OCSP_ONEREQ_push(req->tbsRequest.requestList, one)) {
         one->reqCert = NULL; /* do not free on error */
         OCSP_ONEREQ_free(one);
         return NULL;
     }
     return one;
 }

 /* Set requestorName from an X509_NAME structure */
 int OCSP_request_set1_name(OCSP_REQUEST *req, const X509_NAME *nm)
 {
     GENERAL_NAME *gen = GENERAL_NAME_new();

     if (gen == NULL)
         return 0;
     if (!X509_NAME_set(&gen->d.directoryName, nm)) {
         GENERAL_NAME_free(gen);
         return 0;
     }
     gen->type = GEN_DIRNAME;
     GENERAL_NAME_free(req->tbsRequest.requestorName);
     req->tbsRequest.requestorName = gen;
     return 1;
 }

 /* Add a certificate to an OCSP request */
 int OCSP_request_add1_cert(OCSP_REQUEST *req, X509 *cert)
 {
     if (req->optionalSignature == NULL
             && (req->optionalSignature = OCSP_SIGNATURE_new()) == NULL)
         return 0;
     if (cert == NULL)
         return 1;
     return ossl_x509_add_cert_new(&req->optionalSignature->certs, cert,
                                   X509_ADD_FLAG_UP_REF);
 }

 /*
  * Sign an OCSP request set the requestorName to the subject name of an
  * optional signers certificate and include one or more optional certificates
  * in the request. Behaves like PKCS7_sign().
  */
 int OCSP_request_sign(OCSP_REQUEST *req,
                       X509 *signer,
                       EVP_PKEY *key,
                       const EVP_MD *dgst,
                       STACK_OF(X509) *certs, unsigned long flags)
 {
     if (!OCSP_request_set1_name(req, X509_get_subject_name(signer)))
         goto err;

     if ((req->optionalSignature = OCSP_SIGNATURE_new()) == NULL)
         goto err;
     if (key != NULL) {
         if (!X509_check_private_key(signer, key)) {
             ERR_raise(ERR_LIB_OCSP,
                       OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
             goto err;
         }
         if (!OCSP_REQUEST_sign(req, key, dgst, signer->libctx, signer->propq))
             goto err;
     }

     if ((flags & OCSP_NOCERTS) == 0) {
         if (!OCSP_request_add1_cert(req, signer)
             || !X509_add_certs(req->optionalSignature->certs, certs,
                                X509_ADD_FLAG_UP_REF))
             goto err;
     }

     return 1;
  err:
     OCSP_SIGNATURE_free(req->optionalSignature);
     req->optionalSignature = NULL;
     return 0;
 }

 /* Get response status */
 int OCSP_response_status(OCSP_RESPONSE *resp)
 {
     return ASN1_ENUMERATED_get(resp->responseStatus);
 }

 /*
  * Extract basic response from OCSP_RESPONSE or NULL if no basic response
  * present.
  */
 OCSP_BASICRESP *OCSP_response_get1_basic(OCSP_RESPONSE *resp)
 {
     OCSP_RESPBYTES *rb = resp->responseBytes;

     if (rb == NULL) {
         ERR_raise(ERR_LIB_OCSP, OCSP_R_NO_RESPONSE_DATA);
         return NULL;
     }
     if (OBJ_obj2nid(rb->responseType) != NID_id_pkix_OCSP_basic) {
         ERR_raise(ERR_LIB_OCSP, OCSP_R_NOT_BASIC_RESPONSE);
         return NULL;
     }

     return ASN1_item_unpack(rb->response, ASN1_ITEM_rptr(OCSP_BASICRESP));
 }

 const ASN1_OCTET_STRING *OCSP_resp_get0_signature(const OCSP_BASICRESP *bs)
 {
     return bs->signature;
 }

 const X509_ALGOR *OCSP_resp_get0_tbs_sigalg(const OCSP_BASICRESP *bs)
 {
     return &bs->signatureAlgorithm;
 }

 const OCSP_RESPDATA *OCSP_resp_get0_respdata(const OCSP_BASICRESP *bs)
 {
     return &bs->tbsResponseData;
 }

 /* Return number of OCSP_SINGLERESP responses present in a basic response */

 int OCSP_resp_count(OCSP_BASICRESP *bs)
 {
     if (bs == NULL)
         return -1;
     return sk_OCSP_SINGLERESP_num(bs->tbsResponseData.responses);
 }

 /* Extract an OCSP_SINGLERESP response with a given index */
 OCSP_SINGLERESP *OCSP_resp_get0(OCSP_BASICRESP *bs, int idx)
 {
     if (bs == NULL)
         return NULL;
     return sk_OCSP_SINGLERESP_value(bs->tbsResponseData.responses, idx);
 }

 const ASN1_GENERALIZEDTIME *OCSP_resp_get0_produced_at(const OCSP_BASICRESP *bs)
 {
     return bs->tbsResponseData.producedAt;
 }

 const STACK_OF(X509) *OCSP_resp_get0_certs(const OCSP_BASICRESP *bs)
 {
     return bs->certs;
 }

 int OCSP_resp_get0_id(const OCSP_BASICRESP *bs,
                       const ASN1_OCTET_STRING **pid,
                       const X509_NAME **pname)
 {
     const OCSP_RESPID *rid = &bs->tbsResponseData.responderId;

     if (rid->type == V_OCSP_RESPID_NAME) {
         *pname = rid->value.byName;
         *pid = NULL;
     } else if (rid->type == V_OCSP_RESPID_KEY) {
         *pid = rid->value.byKey;
         *pname = NULL;
     } else {
         return 0;
     }
     return 1;
 }

 int OCSP_resp_get1_id(const OCSP_BASICRESP *bs,
                       ASN1_OCTET_STRING **pid,
                       X509_NAME **pname)
 {
     const OCSP_RESPID *rid = &bs->tbsResponseData.responderId;

     if (rid->type == V_OCSP_RESPID_NAME) {
         *pname = X509_NAME_dup(rid->value.byName);
         *pid = NULL;
     } else if (rid->type == V_OCSP_RESPID_KEY) {
         *pid = ASN1_OCTET_STRING_dup(rid->value.byKey);
         *pname = NULL;
     } else {
         return 0;
     }
     if (*pname == NULL && *pid == NULL)
         return 0;
     return 1;
 }

 /* Look single response matching a given certificate ID */
 int OCSP_resp_find(OCSP_BASICRESP *bs, OCSP_CERTID *id, int last)
 {
     int i;
     STACK_OF(OCSP_SINGLERESP) *sresp;
     OCSP_SINGLERESP *single;

     if (bs == NULL)
         return -1;
     if (last < 0)
         last = 0;
     else
         last++;
     sresp = bs->tbsResponseData.responses;
     for (i = last; i < sk_OCSP_SINGLERESP_num(sresp); i++) {
         single = sk_OCSP_SINGLERESP_value(sresp, i);
         if (!OCSP_id_cmp(id, single->certId))
             return i;
     }
     return -1;
 }

 /*
  * Extract status information from an OCSP_SINGLERESP structure. Note: the
  * revtime and reason values are only set if the certificate status is
  * revoked. Returns numerical value of status.
  */
 int OCSP_single_get0_status(OCSP_SINGLERESP *single, int *reason,
                             ASN1_GENERALIZEDTIME **revtime,
                             ASN1_GENERALIZEDTIME **thisupd,
                             ASN1_GENERALIZEDTIME **nextupd)
 {
     int ret;
     OCSP_CERTSTATUS *cst;

     if (single == NULL)
         return -1;
     cst = single->certStatus;
     ret = cst->type;
     if (ret == V_OCSP_CERTSTATUS_REVOKED) {
         OCSP_REVOKEDINFO *rev = cst->value.revoked;

         if (revtime)
             *revtime = rev->revocationTime;
         if (reason) {
             if (rev->revocationReason)
                 *reason = ASN1_ENUMERATED_get(rev->revocationReason);
             else
                 *reason = -1;
         }
     }
     if (thisupd != NULL)
         *thisupd = single->thisUpdate;
     if (nextupd != NULL)
         *nextupd = single->nextUpdate;
     return ret;
 }

 /*
  * This function combines the previous ones: look up a certificate ID and if
  * found extract status information. Return 0 is successful.
  */
 int OCSP_resp_find_status(OCSP_BASICRESP *bs, OCSP_CERTID *id, int *status,
                           int *reason,
                           ASN1_GENERALIZEDTIME **revtime,
                           ASN1_GENERALIZEDTIME **thisupd,
                           ASN1_GENERALIZEDTIME **nextupd)
 {
     int i = OCSP_resp_find(bs, id, -1);
     OCSP_SINGLERESP *single;

     /* Maybe check for multiple responses and give an error? */
     if (i < 0)
         return 0;
     single = OCSP_resp_get0(bs, i);
     i = OCSP_single_get0_status(single, reason, revtime, thisupd, nextupd);
     if (status != NULL)
         *status = i;
     return 1;
 }

 /*
  * Check validity of thisUpdate and nextUpdate fields. It is possible that
  * the request will take a few seconds to process and/or the time won't be
  * totally accurate. Therefore to avoid rejecting otherwise valid time we
  * allow the times to be within 'nsec' of the current time. Also to avoid
  * accepting very old responses without a nextUpdate field an optional maxage
  * parameter specifies the maximum age the thisUpdate field can be.
  */
 int OCSP_check_validity(ASN1_GENERALIZEDTIME *thisupd,
                         ASN1_GENERALIZEDTIME *nextupd, long nsec, long maxsec)
 {
     int ret = 1;
     time_t t_now, t_tmp;

     time(&t_now);
     /* Check thisUpdate is valid and not more than nsec in the future */
     if (!ASN1_GENERALIZEDTIME_check(thisupd)) {
         ERR_raise(ERR_LIB_OCSP, OCSP_R_ERROR_IN_THISUPDATE_FIELD);
         ret = 0;
     } else {
         t_tmp = t_now + nsec;
         if (X509_cmp_time(thisupd, &t_tmp) > 0) {
             ERR_raise(ERR_LIB_OCSP, OCSP_R_STATUS_NOT_YET_VALID);
             ret = 0;
         }

         /*
          * If maxsec specified check thisUpdate is not more than maxsec in
          * the past
          */
         if (maxsec >= 0) {
             t_tmp = t_now - maxsec;
             if (X509_cmp_time(thisupd, &t_tmp) < 0) {
                 ERR_raise(ERR_LIB_OCSP, OCSP_R_STATUS_TOO_OLD);
                 ret = 0;
             }
         }
     }

     if (nextupd == NULL)
         return ret;

     /* Check nextUpdate is valid and not more than nsec in the past */
     if (!ASN1_GENERALIZEDTIME_check(nextupd)) {
         ERR_raise(ERR_LIB_OCSP, OCSP_R_ERROR_IN_NEXTUPDATE_FIELD);
         ret = 0;
     } else {
         t_tmp = t_now - nsec;
         if (X509_cmp_time(nextupd, &t_tmp) < 0) {
             ERR_raise(ERR_LIB_OCSP, OCSP_R_STATUS_EXPIRED);
             ret = 0;
         }
     }

     /* Also don't allow nextUpdate to precede thisUpdate */
     if (ASN1_STRING_cmp(nextupd, thisupd) < 0) {
         ERR_raise(ERR_LIB_OCSP, OCSP_R_NEXTUPDATE_BEFORE_THISUPDATE);
         ret = 0;
     }

     return ret;
 }

 const OCSP_CERTID *OCSP_SINGLERESP_get0_id(const OCSP_SINGLERESP *single)
 {
     return single->certId;
 }
	/*
	* Copyright 2001-2021 The OpenSSL Project Authors. All Rights Reserved.
	*
	* Licensed under the Apache License 2.0 (the "License"). You may not use
	* this file except in compliance with the License. You can obtain a copy
	* in the file LICENSE in the source distribution or at
	* https://www.openssl.org/source/license.html
	*/

	#include <stdio.h>
	#include <time.h>
	#include "internal/cryptlib.h"
	#include <openssl/asn1.h>
	#include <openssl/objects.h>
	#include <openssl/x509.h>
	#include <openssl/pem.h>
	#include <openssl/x509v3.h>
	#include <openssl/ocsp.h>
	#include "ocsp_local.h"

	/*
	* Utility functions related to sending OCSP requests and extracting relevant
	* information from the response.
	*/

	/*
	* Add an OCSP_CERTID to an OCSP request. Return new OCSP_ONEREQ pointer:
	* useful if we want to add extensions.
	*/
	OCSP_ONEREQ OCSP_request_add0_id(OCSP_REQUEST req, OCSP_CERTID *cid)
	{
	OCSP_ONEREQ *one = NULL;

	if ((one = OCSP_ONEREQ_new()) == NULL)
	return NULL;
	OCSP_CERTID_free(one->reqCert);
	one->reqCert = cid;
	if (req && !sk_OCSP_ONEREQ_push(req->tbsRequest.requestList, one)) {
	one->reqCert = NULL; /* do not free on error */
	OCSP_ONEREQ_free(one);
	return NULL;
	}
	return one;
	}

	/* Set requestorName from an X509_NAME structure */
	int OCSP_request_set1_name(OCSP_REQUEST req, const X509_NAME nm)
	{
	GENERAL_NAME *gen = GENERAL_NAME_new();

	if (gen == NULL)
	return 0;
	if (!X509_NAME_set(&gen->d.directoryName, nm)) {
	GENERAL_NAME_free(gen);
	return 0;
	}
	gen->type = GEN_DIRNAME;
	GENERAL_NAME_free(req->tbsRequest.requestorName);
	req->tbsRequest.requestorName = gen;
	return 1;
	}

	/* Add a certificate to an OCSP request */
	int OCSP_request_add1_cert(OCSP_REQUEST req, X509 cert)
	{
	if (req->optionalSignature == NULL
	&& (req->optionalSignature = OCSP_SIGNATURE_new()) == NULL)
	return 0;
	if (cert == NULL)
	return 1;
	return ossl_x509_add_cert_new(&req->optionalSignature->certs, cert,
	X509_ADD_FLAG_UP_REF);
	}

	/*
	* Sign an OCSP request set the requestorName to the subject name of an
	* optional signers certificate and include one or more optional certificates
	* in the request. Behaves like PKCS7_sign().
	*/
	int OCSP_request_sign(OCSP_REQUEST *req,
	X509 *signer,
	EVP_PKEY *key,
	const EVP_MD *dgst,
	STACK_OF(X509) *certs, unsigned long flags)
	{
	if (!OCSP_request_set1_name(req, X509_get_subject_name(signer)))
	goto err;

	if ((req->optionalSignature = OCSP_SIGNATURE_new()) == NULL)
	goto err;
	if (key != NULL) {
	if (!X509_check_private_key(signer, key)) {
	ERR_raise(ERR_LIB_OCSP,
	OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
	goto err;
	}
	if (!OCSP_REQUEST_sign(req, key, dgst, signer->libctx, signer->propq))
	goto err;
	}

	if ((flags & OCSP_NOCERTS) == 0) {
	if (!OCSP_request_add1_cert(req, signer)
	\|\| !X509_add_certs(req->optionalSignature->certs, certs,
	X509_ADD_FLAG_UP_REF))
	goto err;
	}

	return 1;
	err:
	OCSP_SIGNATURE_free(req->optionalSignature);
	req->optionalSignature = NULL;
	return 0;
	}

	/* Get response status */
	int OCSP_response_status(OCSP_RESPONSE *resp)
	{
	return ASN1_ENUMERATED_get(resp->responseStatus);
	}

	/*
	* Extract basic response from OCSP_RESPONSE or NULL if no basic response
	* present.
	*/
	OCSP_BASICRESP OCSP_response_get1_basic(OCSP_RESPONSE resp)
	{
	OCSP_RESPBYTES *rb = resp->responseBytes;

	if (rb == NULL) {
	ERR_raise(ERR_LIB_OCSP, OCSP_R_NO_RESPONSE_DATA);
	return NULL;
	}
	if (OBJ_obj2nid(rb->responseType) != NID_id_pkix_OCSP_basic) {
	ERR_raise(ERR_LIB_OCSP, OCSP_R_NOT_BASIC_RESPONSE);
	return NULL;
	}

	return ASN1_item_unpack(rb->response, ASN1_ITEM_rptr(OCSP_BASICRESP));
	}

	const ASN1_OCTET_STRING OCSP_resp_get0_signature(const OCSP_BASICRESP bs)
	{
	return bs->signature;
	}

	const X509_ALGOR OCSP_resp_get0_tbs_sigalg(const OCSP_BASICRESP bs)
	{
	return &bs->signatureAlgorithm;
	}

	const OCSP_RESPDATA OCSP_resp_get0_respdata(const OCSP_BASICRESP bs)
	{
	return &bs->tbsResponseData;
	}

	/* Return number of OCSP_SINGLERESP responses present in a basic response */

	int OCSP_resp_count(OCSP_BASICRESP *bs)
	{
	if (bs == NULL)
	return -1;
	return sk_OCSP_SINGLERESP_num(bs->tbsResponseData.responses);
	}

	/* Extract an OCSP_SINGLERESP response with a given index */
	OCSP_SINGLERESP OCSP_resp_get0(OCSP_BASICRESP bs, int idx)
	{
	if (bs == NULL)
	return NULL;
	return sk_OCSP_SINGLERESP_value(bs->tbsResponseData.responses, idx);
	}

	const ASN1_GENERALIZEDTIME OCSP_resp_get0_produced_at(const OCSP_BASICRESP bs)
	{
	return bs->tbsResponseData.producedAt;
	}

	const STACK_OF(X509) OCSP_resp_get0_certs(const OCSP_BASICRESP bs)
	{
	return bs->certs;
	}

	int OCSP_resp_get0_id(const OCSP_BASICRESP *bs,
	const ASN1_OCTET_STRING **pid,
	const X509_NAME **pname)
	{
	const OCSP_RESPID *rid = &bs->tbsResponseData.responderId;

	if (rid->type == V_OCSP_RESPID_NAME) {
	*pname = rid->value.byName;
	*pid = NULL;
	} else if (rid->type == V_OCSP_RESPID_KEY) {
	*pid = rid->value.byKey;
	*pname = NULL;
	} else {
	return 0;
	}
	return 1;
	}

	int OCSP_resp_get1_id(const OCSP_BASICRESP *bs,
	ASN1_OCTET_STRING **pid,
	X509_NAME **pname)
	{
	const OCSP_RESPID *rid = &bs->tbsResponseData.responderId;

	if (rid->type == V_OCSP_RESPID_NAME) {
	*pname = X509_NAME_dup(rid->value.byName);
	*pid = NULL;
	} else if (rid->type == V_OCSP_RESPID_KEY) {
	*pid = ASN1_OCTET_STRING_dup(rid->value.byKey);
	*pname = NULL;
	} else {
	return 0;
	}
	if (pname == NULL && pid == NULL)
	return 0;
	return 1;
	}

	/* Look single response matching a given certificate ID */
	int OCSP_resp_find(OCSP_BASICRESP bs, OCSP_CERTID id, int last)
	{
	int i;
	STACK_OF(OCSP_SINGLERESP) *sresp;
	OCSP_SINGLERESP *single;

	if (bs == NULL)
	return -1;
	if (last < 0)
	last = 0;
	else
	last++;
	sresp = bs->tbsResponseData.responses;
	for (i = last; i < sk_OCSP_SINGLERESP_num(sresp); i++) {
	single = sk_OCSP_SINGLERESP_value(sresp, i);
	if (!OCSP_id_cmp(id, single->certId))
	return i;
	}
	return -1;
	}

	/*
	* Extract status information from an OCSP_SINGLERESP structure. Note: the
	* revtime and reason values are only set if the certificate status is
	* revoked. Returns numerical value of status.
	*/
	int OCSP_single_get0_status(OCSP_SINGLERESP single, int reason,
	ASN1_GENERALIZEDTIME **revtime,
	ASN1_GENERALIZEDTIME **thisupd,
	ASN1_GENERALIZEDTIME **nextupd)
	{
	int ret;
	OCSP_CERTSTATUS *cst;

	if (single == NULL)
	return -1;
	cst = single->certStatus;
	ret = cst->type;
	if (ret == V_OCSP_CERTSTATUS_REVOKED) {
	OCSP_REVOKEDINFO *rev = cst->value.revoked;

	if (revtime)
	*revtime = rev->revocationTime;
	if (reason) {
	if (rev->revocationReason)
	*reason = ASN1_ENUMERATED_get(rev->revocationReason);
	else
	*reason = -1;
	}
	}
	if (thisupd != NULL)
	*thisupd = single->thisUpdate;
	if (nextupd != NULL)
	*nextupd = single->nextUpdate;
	return ret;
	}

	/*
	* This function combines the previous ones: look up a certificate ID and if
	* found extract status information. Return 0 is successful.
	*/
	int OCSP_resp_find_status(OCSP_BASICRESP bs, OCSP_CERTID id, int *status,
	int *reason,
	ASN1_GENERALIZEDTIME **revtime,
	ASN1_GENERALIZEDTIME **thisupd,
	ASN1_GENERALIZEDTIME **nextupd)
	{
	int i = OCSP_resp_find(bs, id, -1);
	OCSP_SINGLERESP *single;

	/* Maybe check for multiple responses and give an error? */
	if (i < 0)
	return 0;
	single = OCSP_resp_get0(bs, i);
	i = OCSP_single_get0_status(single, reason, revtime, thisupd, nextupd);
	if (status != NULL)
	*status = i;
	return 1;
	}

	/*
	* Check validity of thisUpdate and nextUpdate fields. It is possible that
	* the request will take a few seconds to process and/or the time won't be
	* totally accurate. Therefore to avoid rejecting otherwise valid time we
	* allow the times to be within 'nsec' of the current time. Also to avoid
	* accepting very old responses without a nextUpdate field an optional maxage
	* parameter specifies the maximum age the thisUpdate field can be.
	*/
	int OCSP_check_validity(ASN1_GENERALIZEDTIME *thisupd,
	ASN1_GENERALIZEDTIME *nextupd, long nsec, long maxsec)
	{
	int ret = 1;
	time_t t_now, t_tmp;

	time(&t_now);
	/* Check thisUpdate is valid and not more than nsec in the future */
	if (!ASN1_GENERALIZEDTIME_check(thisupd)) {
	ERR_raise(ERR_LIB_OCSP, OCSP_R_ERROR_IN_THISUPDATE_FIELD);
	ret = 0;
	} else {
	t_tmp = t_now + nsec;
	if (X509_cmp_time(thisupd, &t_tmp) > 0) {
	ERR_raise(ERR_LIB_OCSP, OCSP_R_STATUS_NOT_YET_VALID);
	ret = 0;
	}

	/*
	* If maxsec specified check thisUpdate is not more than maxsec in
	* the past
	*/
	if (maxsec >= 0) {
	t_tmp = t_now - maxsec;
	if (X509_cmp_time(thisupd, &t_tmp) < 0) {
	ERR_raise(ERR_LIB_OCSP, OCSP_R_STATUS_TOO_OLD);
	ret = 0;
	}
	}
	}

	if (nextupd == NULL)
	return ret;

	/* Check nextUpdate is valid and not more than nsec in the past */
	if (!ASN1_GENERALIZEDTIME_check(nextupd)) {
	ERR_raise(ERR_LIB_OCSP, OCSP_R_ERROR_IN_NEXTUPDATE_FIELD);
	ret = 0;
	} else {
	t_tmp = t_now - nsec;
	if (X509_cmp_time(nextupd, &t_tmp) < 0) {
	ERR_raise(ERR_LIB_OCSP, OCSP_R_STATUS_EXPIRED);
	ret = 0;
	}
	}

	/* Also don't allow nextUpdate to precede thisUpdate */
	if (ASN1_STRING_cmp(nextupd, thisupd) < 0) {
	ERR_raise(ERR_LIB_OCSP, OCSP_R_NEXTUPDATE_BEFORE_THISUPDATE);
	ret = 0;
	}

	return ret;
	}

	const OCSP_CERTID OCSP_SINGLERESP_get0_id(const OCSP_SINGLERESP single)
	{
	return single->certId;
	}