ocsp_srv.c
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上传日期:2020-08-09
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- /* ocsp_srv.c */
- /* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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;
- }