/* * 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. */ /* * NULLDigest.h - nop digest for use with raw signature algorithms. * NullDigest(someData) = someData. */ #ifndef _NULL_DIGEST_H_ #define _NULL_DIGEST_H_ #include <AppleCSP/DigestObject.h> #include <Security/cssmalloc.h> class NullDigest : public DigestObject { public: NullDigest() : mInBuf(NULL), mInBufSize(0) { } ~NullDigest() { CssmAllocator::standard().free(mInBuf); } void digestInit() { /* reusable - reset */ CssmAllocator::standard().free(mInBuf); mInBufSize = 0; mInBuf = NULL; } void digestUpdate( const void *data, size_t len) { mInBuf = CssmAllocator::standard().realloc(mInBuf, mInBufSize + len); memmove((uint8 *)mInBuf + mInBufSize, data, len); mInBufSize += len; } virtual void digestFinal( void *digest) { memmove(digest, mInBuf, mInBufSize); } size_t digestSizeInBytes() const { return mInBufSize; } private: void *mInBuf; size_t mInBufSize; }; #endif /* _NULL_DIGEST_H_ */