/* ** Command & Conquer Renegade(tm) ** Copyright 2025 Electronic Arts Inc. ** ** This program is free software: you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation, either version 3 of the License, or ** (at your option) any later version. ** ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program. If not, see . */ /*********************************************************************************************** *** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S *** *********************************************************************************************** * * * Project Name : Command & Conquer * * * * $Archive:: /Commando/Library/BLWSTRAW.H $* * * * $Author:: Greg_h $* * * * $Modtime:: 7/22/97 11:37a $* * * * $Revision:: 1 $* * * *---------------------------------------------------------------------------------------------* * Functions: * * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ #ifndef BLWSTRAW_H #define BLWSTRAW_H #include "straw.h" #include "blowfish.h" /* ** Performs Blowfish encryption/decryption to the data that is drawn through this straw. The ** process is controlled by the key which must be submitted to the class before any data ** manipulation will occur. The Blowfish algorithm is symmetric, thus the same key is used ** for encryption as is for decryption. */ class BlowStraw : public Straw { public: typedef enum CryptControl { ENCRYPT, DECRYPT } CryptControl; BlowStraw(CryptControl control) : BF(NULL), Counter(0), Control(control) {} virtual ~BlowStraw(void) {delete BF;BF = NULL;} virtual int Get(void * source, int slen); // Submit key for blowfish engine. void Key(void const * key, int length); protected: /* ** The Blowfish engine used for encryption/decryption. If this pointer is ** NULL, then this indicates that the blowfish engine is not active and no ** key has been submitted. All data would pass through this straw unchanged ** in that case. */ BlowfishEngine * BF; private: char Buffer[8]; int Counter; CryptControl Control; BlowStraw(BlowStraw & rvalue); BlowStraw & operator = (BlowStraw const & straw); }; #endif