A local copy of OpenSSL from GitHub
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/*
* Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (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 "internal/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>
#include "ocsp_lcl.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()) == NULL)
goto err;
if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status)))
goto err;
if (!bs)
return rsp;
if ((rsp->responseBytes = OCSP_RESPBYTES_new()) == NULL)
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:
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 == NULL
&& (rsp->tbsResponseData.responses
= sk_OCSP_SINGLERESP_new_null()) == NULL)
goto err;
if ((single = OCSP_SINGLERESP_new()) == NULL)
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)) == NULL)
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()) == NULL)
goto err;
if (!ASN1_TIME_to_generalizedtime(revtime, &ri->revocationTime))
goto err;
if (reason != OCSP_REVOKED_STATUS_NOSTATUS) {
if ((ri->revocationReason = ASN1_ENUMERATED_new()) == NULL)
goto err;
if (!(ASN1_ENUMERATED_set(ri->revocationReason, reason)))
goto err;
}
break;
case V_OCSP_CERTSTATUS_GOOD:
if ((cs->value.good = ASN1_NULL_new()) == NULL)
goto err;
break;
case V_OCSP_CERTSTATUS_UNKNOWN:
if ((cs->value.unknown = ASN1_NULL_new()) == NULL)
goto err;
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 == NULL
&& (resp->certs = sk_X509_new_null()) == NULL)
return 0;
if (!sk_X509_push(resp->certs, cert))
return 0;
X509_up_ref(cert);
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()) == NULL)
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;
}