--- /dev/null
+/*
+ * Copyright (c) 2008-2009 Apple Inc. All Rights Reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+/*
+ * SecOCSPRequest.c - Trust policies dealing with certificate revocation.
+ */
+
+#include <securityd/SecOCSPRequest.h>
+#include <Security/SecCertificateInternal.h>
+#include <AssertMacros.h>
+#include <security_utilities/debugging.h>
+#include <security_asn1/SecAsn1Coder.h>
+#include <security_asn1/ocspTemplates.h>
+#include <security_asn1/oidsalg.h>
+#include <security_asn1/oidsocsp.h>
+#include <CommonCrypto/CommonDigest.h>
+#include <stdlib.h>
+#include "SecInternal.h"
+
+/*
+ OCSPRequest ::= SEQUENCE {
+ tbsRequest TBSRequest,
+ optionalSignature [0] EXPLICIT Signature OPTIONAL }
+
+ TBSRequest ::= SEQUENCE {
+ version [0] EXPLICIT Version DEFAULT v1,
+ requestorName [1] EXPLICIT GeneralName OPTIONAL,
+ requestList SEQUENCE OF Request,
+ requestExtensions [2] EXPLICIT Extensions OPTIONAL }
+
+ Signature ::= SEQUENCE {
+ signatureAlgorithm AlgorithmIdentifier,
+ signature BIT STRING,
+ certs [0] EXPLICIT SEQUENCE OF Certificate
+ OPTIONAL}
+
+ Version ::= INTEGER { v1(0) }
+
+ Request ::= SEQUENCE {
+ reqCert CertID,
+ singleRequestExtensions [0] EXPLICIT Extensions OPTIONAL }
+
+ CertID ::= SEQUENCE {
+ hashAlgorithm AlgorithmIdentifier,
+ issuerNameHash OCTET STRING, -- Hash of Issuer's DN
+ issuerKeyHash OCTET STRING, -- Hash of Issuers public key
+ serialNumber CertificateSerialNumber }
+ */
+static CFDataRef _SecOCSPRequestCopyDEREncoding(SecOCSPRequestRef this) {
+ /* fields obtained from issuer */
+ SecAsn1OCSPSignedRequest signedReq = {};
+ SecAsn1OCSPTbsRequest *tbs = &signedReq.tbsRequest;
+ SecAsn1OCSPRequest singleReq = {};
+ SecAsn1OCSPCertID *certId = &singleReq.reqCert;
+ SecAsn1OCSPRequest *reqArray[2] = { &singleReq, NULL };
+ uint8_t version = 0;
+ SecAsn1Item vers = {1, &version};
+ CFDataRef der = NULL;
+ SecAsn1CoderRef coder = NULL;
+ CFDataRef issuerNameDigest;
+ CFDataRef serial;
+ CFDataRef issuerPubKeyDigest;
+
+
+ /* algId refers to the hash we'll perform in issuer name and key */
+ certId->algId.algorithm = CSSMOID_SHA1;
+ /* preencoded DER NULL */
+ static uint8_t nullParam[2] = {5, 0};
+ certId->algId.parameters.Data = nullParam;
+ certId->algId.parameters.Length = sizeof(nullParam);
+
+ /* @@@ Change this from using SecCertificateCopyIssuerSHA1Digest() /
+ SecCertificateCopyPublicKeySHA1Digest() to
+ SecCertificateCopyIssuerSequence() / SecCertificateGetPublicKeyData()
+ and call SecDigestCreate here instead. */
+ issuerNameDigest = SecCertificateCopyIssuerSHA1Digest(this->certificate);
+ serial = SecCertificateCopySerialNumber(this->certificate);
+ issuerPubKeyDigest = SecCertificateCopyPublicKeySHA1Digest(this->issuer);
+
+ /* build the CertID from those components */
+ certId->issuerNameHash.Length = CC_SHA1_DIGEST_LENGTH;
+ certId->issuerNameHash.Data = (uint8_t *)CFDataGetBytePtr(issuerNameDigest);
+ certId->issuerPubKeyHash.Length = CC_SHA1_DIGEST_LENGTH;
+ certId->issuerPubKeyHash.Data = (uint8_t *)CFDataGetBytePtr(issuerPubKeyDigest);
+ certId->serialNumber.Length = CFDataGetLength(serial);
+ certId->serialNumber.Data = (uint8_t *)CFDataGetBytePtr(serial);
+
+ /* Build top level request with one entry in requestList, no signature,
+ and no optional extensions. */
+ tbs->version = &vers;
+ tbs->requestList = reqArray;
+
+ /* Encode the request. */
+ require_noerr(SecAsn1CoderCreate(&coder), errOut);
+ SecAsn1Item encoded;
+ require_noerr(SecAsn1EncodeItem(coder, &signedReq,
+ kSecAsn1OCSPSignedRequestTemplate, &encoded), errOut);
+ der = CFDataCreate(kCFAllocatorDefault, encoded.Data,
+ encoded.Length);
+
+errOut:
+ if (coder)
+ SecAsn1CoderRelease(coder);
+ CFReleaseSafe(issuerNameDigest);
+ CFReleaseSafe(serial);
+ CFReleaseSafe(issuerPubKeyDigest);
+
+ return der;
+}
+
+SecOCSPRequestRef SecOCSPRequestCreate(SecCertificateRef certificate,
+ SecCertificateRef issuer) {
+ SecOCSPRequestRef this;
+ require(this = (SecOCSPRequestRef)calloc(1, sizeof(struct __SecOCSPRequest)),
+ errOut);
+ this->certificate = certificate;
+ this->issuer = issuer;
+
+ return this;
+errOut:
+ if (this) {
+ SecOCSPRequestFinalize(this);
+ }
+ return NULL;
+}
+
+CFDataRef SecOCSPRequestGetDER(SecOCSPRequestRef this) {
+ CFDataRef der = this->der;
+ if (!der) {
+ this->der = der = _SecOCSPRequestCopyDEREncoding(this);
+ }
+ return der;
+}
+
+void SecOCSPRequestFinalize(SecOCSPRequestRef this) {
+ CFReleaseSafe(this->der);
+ free(this);
+}
+
projects / apple / security.git / blobdiff