+++ /dev/null
-/*
- * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
- *
- * The contents of this file constitute Original Code as defined in and are
- * subject to the Apple Public Source License Version 1.2 (the 'License').
- * You may not use this file except in compliance with the License. Please obtain
- * a copy of the License at http://www.apple.com/publicsource and read it before
- * using this file.
- *
- * This 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.
- */
-
-
-/*
- * SignatureContext.h - AppleCSPContext sublass for generic sign/verify
- */
-
-#include "SignatureContext.h"
-#include "AppleCSPUtils.h"
-#include "AppleCSPSession.h"
-#include <Security/cssmtype.h>
-
-#include <security_utilities/debugging.h>
-
-#define cspSigDebug(args...) secdebug("cspSig", ## args)
-
-SignatureContext::~SignatureContext()
-{
- delete &mDigest;
- delete &mSigner;
- mInitFlag = false;
-}
-
-/* both sign & verify */
-void SignatureContext::init(
- const Context &context,
- bool isSigning)
-{
- mDigest.digestInit();
- mSigner.signerInit(context, isSigning);
- mInitFlag = true;
-}
-
-/* both sign & verify */
-void SignatureContext::update(
- const CssmData &data)
-{
- mDigest.digestUpdate(data.Data, data.Length);
-}
-
-/* sign only */
-void SignatureContext::final(
- CssmData &out)
-{
- void *digest;
- size_t digestLen;
- void *sig = out.data();
- size_t sigLen = out.length();
-
- /* first obtain the digest */
- digestLen = mDigest.digestSizeInBytes();
- digest = session().malloc(digestLen);
- mDigest.digestFinal(digest);
-
- /* now sign */
- try {
- mSigner.sign(digest,
- digestLen,
- sig,
- &sigLen);
- }
- catch(...) {
- session().free(digest);
- throw;
- }
- session().free(digest);
- if(out.length() < sigLen) {
- cspSigDebug("SignatureContext: mallocd sig too small!");
- CssmError::throwMe(CSSMERR_CSP_INTERNAL_ERROR);
- }
- out.length(sigLen);
-}
-
-/* verify only */
-void SignatureContext::final(
- const CssmData &in)
-{
- void *digest;
- size_t digestLen;
-
- /* first obtain the digest */
- digestLen = mDigest.digestSizeInBytes();
- digest = session().malloc(digestLen);
- mDigest.digestFinal(digest);
-
- /* now verify */
- try {
- mSigner.verify(digest,
- digestLen,
- in.Data,
- in.Length);
- }
- catch(...) {
- session().free(digest);
- throw;
- }
- session().free(digest);
-}
-
-size_t SignatureContext::outputSize(
- bool final,
- size_t inSize)
-{
- return mSigner.maxSigSize();
-}
-
-/* for raw sign/verify - optionally called after init */
-void SignatureContext::setDigestAlgorithm(
- CSSM_ALGORITHMS digestAlg)
-{
- mSigner.setDigestAlg(digestAlg);
-}