/* * 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. */ /* * FEEAsymmetricContext.h - CSPContexts for FEE asymmetric encryption * * Created March 8 2001 by dmitch. */ #ifdef CRYPTKIT_CSP_ENABLE #ifndef _FEE_ASYMMETRIC_CONTEXT_H_ #define _FEE_ASYMMETRIC_CONTEXT_H_ #include <Security/CSPsession.h> #include "AppleCSP.h" #include "AppleCSPContext.h" #include "AppleCSPSession.h" #include "BlockCryptor.h" #include <CryptKit/feeFEED.h> #include <CryptKit/feeFEEDExp.h> namespace CryptKit { class FEEDContext : public BlockCryptor { public: FEEDContext(AppleCSPSession &session) : BlockCryptor(session), mFeeFeed(NULL), mPrivKey(NULL), mPubKey(NULL), mInitFlag(false) { } ~FEEDContext(); /* called by CSPFullPluginSession */ void init(const Context &context, bool encoding = true); /* called by BlockCryptor */ void encryptBlock( const void *plainText, // length implied (one block) size_t plainTextLen, void *cipherText, size_t &cipherTextLen, // in/out, throws on overflow bool final); void decryptBlock( const void *cipherText, // length implied (one cipher block) void *plainText, size_t &plainTextLen, // in/out, throws on overflow bool final); /* * Additional query size support, necessary because we don't conform to * BlockCryptor's standard one-to-one block scheme */ size_t inputSize( size_t outSize); // input for given output size size_t outputSize( bool final = false, size_t inSize = 0); // output for given input size void minimumProgress( size_t &in, size_t &out); // minimum progress chunks private: feeFEED mFeeFeed; feePubKey mPrivKey; bool mAllocdPrivKey; feePubKey mPubKey; bool mAllocdPubKey; bool mInitFlag; // allows easy reuse }; /* FEEDContext */ class FEEDExpContext : public BlockCryptor { public: FEEDExpContext(AppleCSPSession &session) : BlockCryptor(session), mFeeFeedExp(NULL), mFeeKey(NULL), mInitFlag(false) { } ~FEEDExpContext(); /* called by CSPFullPluginSession */ void init(const Context &context, bool encoding = true); /* called by BlockCryptor */ void encryptBlock( const void *plainText, // length implied (one block) size_t plainTextLen, void *cipherText, size_t &cipherTextLen, // in/out, throws on overflow bool final); void decryptBlock( const void *cipherText, // length implied (one cipher block) void *plainText, size_t &plainTextLen, // in/out, throws on overflow bool final); private: feeFEEDExp mFeeFeedExp; feePubKey mFeeKey; bool mAllocdFeeKey; bool mInitFlag; // allows easy reuse }; /* FEEDExpContext */ } /* namespace CryptKit */ #endif /* _FEE_ASYMMETRIC_CONTEXT_H_ */ #endif /* CRYPTKIT_CSP_ENABLE */