/* * 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. */ /* * DigestObject.h - generic virtual Digest base class */ #ifndef _DIGEST_OBJECT_H_ #define _DIGEST_OBJECT_H_ #include <CoreServices/../Frameworks/CarbonCore.framework/Headers/MacTypes.h> #include <Security/context.h> /* common virtual digest class */ class DigestObject { public: DigestObject() : mInitFlag(false), mIsDone(false) { } virtual ~DigestObject() { } /* * The remaining functions must be implemented by subclass. */ /* init is reusable */ virtual void digestInit() = 0; /* add some data */ virtual void digestUpdate( const void *data, size_t len) = 0; /* obtain digest (once only per init, update, ... cycle) */ virtual void digestFinal( void *digest) = 0; /* RETURNED, alloc'd by caller */ virtual size_t digestSizeInBytes() const = 0; protected: bool mInitFlag; bool mIsDone; bool initFlag() { return mInitFlag; } void setInitFlag(bool flag) { mInitFlag = flag; } bool isDone() { return mIsDone; } void setIsDone(bool done) { mIsDone = done; } }; #endif /* _DIGEST_OBJECT_H_ */