+++ /dev/null
-/*
- * Copyright (c) 2004,2011-2012,2014 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@
- */
-
-/*
- * ocspRequest.cpp - OCSP Request class
- */
-
-#include "ocspRequest.h"
-#include "certGroupUtils.h"
-#include "tpdebugging.h"
-#include <security_ocspd/ocspResponse.h>
-#include <security_ocspd/ocspExtensions.h>
-#include <security_ocspd/ocspdUtils.h>
-#include <assert.h>
-#include <string.h>
-#include <Security/oidsalg.h>
-#include <Security/oidscert.h>
-#include <Security/ocspTemplates.h>
-#include <security_utilities/devrandom.h>
-#include <CommonCrypto/CommonDigest.h>
-#include <security_cdsa_utilities/cssmerrors.h>
-
-/* preencoded DER NULL */
-static uint8 nullParam[2] = {5, 0};
-
-/* size of nonce we generate, in bytes */
-#define OCSP_NONCE_SIZE 8
-
-/*
- * The only constructor. Subject and issuer must remain valid for the
- * lifetime of this object (they are not refcounted).
- */
-OCSPRequest::OCSPRequest(
- TPCertInfo &subject,
- TPCertInfo &issuer,
- bool genNonce)
- : mCoder(NULL),
- mSubject(subject),
- mIssuer(issuer),
- mGenNonce(genNonce),
- mCertID(NULL)
-{
- SecAsn1CoderCreate(&mCoder);
- mNonce.Data = NULL;
- mNonce.Length = 0;
- mEncoded.Data = NULL;
- mEncoded.Length = 0;
-}
-
-OCSPRequest::~OCSPRequest()
-{
- delete mCertID;
- if(mCoder) {
- SecAsn1CoderRelease(mCoder);
- }
-}
-
-const CSSM_DATA *OCSPRequest::encode()
-{
- /* fields obtained from issuer */
- CSSM_DATA_PTR issuerName;
- CSSM_DATA_PTR issuerKey;
- CSSM_KEY_PTR issuerPubKey;
- CSSM_DATA issuerPubKeyBytes;
- /* from subject */
- CSSM_DATA_PTR subjectSerial=NULL;
-
- CSSM_RETURN crtn;
- uint8 issuerNameHash[CC_SHA1_DIGEST_LENGTH];
- uint8 pubKeyHash[CC_SHA1_DIGEST_LENGTH];
- SecAsn1OCSPRequest singleReq;
- SecAsn1OCSPCertID &certId = singleReq.reqCert;
- SecAsn1OCSPSignedRequest signedReq;
- SecAsn1OCSPRequest *reqArray[2] = { &singleReq, NULL };
- SecAsn1OCSPTbsRequest &tbs = signedReq.tbsRequest;
- uint8 version = 0;
- CSSM_DATA vers = {1, &version};
- uint8 nonceBytes[OCSP_NONCE_SIZE];
- CSSM_DATA nonceData = {OCSP_NONCE_SIZE, nonceBytes};
- OCSPNonce *nonce = NULL;
- NSS_CertExtension *extenArray[2] = {NULL, NULL};
-
- if(mEncoded.Data) {
- /* already done */
- return &mEncoded;
- }
-
- /*
- * One single request, no extensions
- */
- memset(&singleReq, 0, sizeof(singleReq));
-
- /* algId refers to the hash we'll perform in issuer name and key */
- certId.algId.algorithm = CSSMOID_SHA1;
- certId.algId.parameters.Data = nullParam;
- certId.algId.parameters.Length = sizeof(nullParam);
-
- /* gather fields from two certs */
- crtn = mSubject.fetchField(&CSSMOID_X509V1IssuerNameStd, &issuerName);
- if(crtn) {
- CssmError::throwMe(crtn);
- }
- crtn = mIssuer.fetchField(&CSSMOID_CSSMKeyStruct, &issuerKey);
- if(crtn) {
- goto errOut;
- }
- crtn = mSubject.fetchField(&CSSMOID_X509V1SerialNumber, &subjectSerial);
- if(crtn) {
- goto errOut;
- }
-
- /* SHA1(issuerName) */
- ocspdSha1(issuerName->Data, (CC_LONG)issuerName->Length, issuerNameHash);
-
- /* SHA1(issuer public key) */
- if(issuerKey->Length != sizeof(CSSM_KEY)) {
- tpErrorLog("OCSPRequest::encode: malformed issuer key\n");
- crtn = CSSMERR_TP_INTERNAL_ERROR;
- goto errOut;
- }
- issuerPubKey = (CSSM_KEY_PTR)issuerKey->Data;
- ocspdGetPublicKeyBytes(mCoder, issuerPubKey, issuerPubKeyBytes);
- ocspdSha1(issuerPubKeyBytes.Data, (CC_LONG)issuerPubKeyBytes.Length, pubKeyHash);
-
- /* build the CertID from those components */
- certId.issuerNameHash.Data = issuerNameHash;
- certId.issuerNameHash.Length = CC_SHA1_DIGEST_LENGTH;
- certId.issuerPubKeyHash.Data = pubKeyHash;
- certId.issuerPubKeyHash.Length = CC_SHA1_DIGEST_LENGTH;
- certId.serialNumber = *subjectSerial;
-
- /*
- * Build top level request with one entry in requestList, no signature,
- * one optional extension (a nonce)
- */
- memset(&signedReq, 0, sizeof(signedReq));
- tbs.version = &vers;
- tbs.requestList = reqArray;
-
- /* one extension - the nonce */
- if(mGenNonce) {
- DevRandomGenerator drg;
- drg.random(nonceBytes, OCSP_NONCE_SIZE);
- nonce = new OCSPNonce(mCoder, false, nonceData);
- extenArray[0] = nonce->nssExt();
- tbs.requestExtensions = extenArray;
- SecAsn1AllocCopyItem(mCoder, &nonceData, &mNonce);
- }
-
- /* Encode */
- if(SecAsn1EncodeItem(mCoder, &signedReq, kSecAsn1OCSPSignedRequestTemplate,
- &mEncoded)) {
- tpErrorLog("OCSPRequest::encode: error encoding OCSP req\n");
- crtn = CSSMERR_TP_INTERNAL_ERROR;
- goto errOut;
- }
- /* save a copy of the CertID */
- mCertID = new OCSPClientCertID(*issuerName, issuerPubKeyBytes, *subjectSerial);
-
-errOut:
- if(issuerName) {
- mIssuer.freeField(&CSSMOID_X509V1IssuerNameStd, issuerName);
- }
- if(issuerKey) {
- mIssuer.freeField(&CSSMOID_CSSMKeyStruct, issuerKey);
- }
- if(subjectSerial) {
- mSubject.freeField(&CSSMOID_X509V1SerialNumber, subjectSerial);
- }
- if(nonce) {
- delete nonce;
- }
- if(crtn) {
- CssmError::throwMe(crtn);
- }
- return &mEncoded;
-}
-
-const CSSM_DATA *OCSPRequest::nonce()
-{
- /* not legal before encode() called */
- assert(mEncoded.Data != NULL);
- if(mNonce.Data) {
- return &mNonce;
- }
- else {
- return NULL;
- }
-}
-
-OCSPClientCertID *OCSPRequest::certID()
-{
- encode();
- return mCertID;
-}
-
projects / apple / security.git / blobdiff