transactor.h

面积最小的AES高级加密算法实现

//////////////////////////////////////////////////////////////////////
////                                                              ////
////  Transactor for AES ramdom verification                      ////
////                                                              ////
////  This file is part of the SystemC AES                        ////
////                                                              ////
////  Description:                                                ////
////  Transactor acording to TLM for SystemC AES project          ////
////                                                              ////
////  To Do:                                                      ////
////   - done                                                     ////
////                                                              ////
////  Author(s):                                                  ////
////      - Javier Castillo, [e-mail]               ////
////                                                              ////
//////////////////////////////////////////////////////////////////////
////                                                              ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG                 ////
////                                                              ////
//// This source file may be used and distributed without         ////
//// restriction provided that this copyright statement is not    ////
//// removed from the file and that any derivative work contains  ////
//// the original copyright notice and the associated disclaimer. ////
////                                                              ////
//// This source file is free software; you can redistribute it   ////
//// and/or modify it under the terms of the GNU Lesser General   ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any   ////
//// later version.                                               ////
////                                                              ////
//// This source 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 Lesser General Public License for more ////
//// details.                                                     ////
////                                                              ////
//// You should have received a copy of the GNU Lesser General    ////
//// Public License along with this source; if not, download it   ////
//// from http://www.opencores.org/lgpl.shtml                     ////
////                                                              ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: transactor.h,v $
// Revision 1.1  2005/02/14 16:29:04  jcastillo
// Added aes192
//
// Revision 1.1  2005/02/14 16:18:26  jcastillo
// aes192 uploaded
//

#include "systemc.h"

class transactor_ports:public sc_module{
	public:
	
    // Ports
	sc_in<bool> clk;
	sc_out<bool> reset;
	
	//Ports to RT model
	sc_out<bool> rt_load_o;
	sc_out<bool> rt_decrypt_o;
	sc_out<sc_biguint<128> > rt_aes_data_o;
	sc_out<sc_biguint<192> > rt_aes_key_o;
	sc_in<bool> rt_aes_ready_i;
	
	//Ports to C model
	sc_fifo_out<bool> c_decrypt_o;
	sc_fifo_out<sc_biguint<192> > c_aes_key_o;
	sc_fifo_out<sc_biguint<128> > c_aes_data_o;
	
};


class rw_task_if : virtual public sc_interface {
	
	public:
	     //Funciones para el transactor 
	     virtual void resetea(void)=0;
	     virtual void encrypt(sc_biguint<128> data, sc_biguint<192> key)=0;	
	     virtual void decrypt(sc_biguint<128> data, sc_biguint<192> key)=0;	
 	     virtual void wait_cycles(int cycles)=0;
    
};


//Transactor
class aes_transactor:public rw_task_if,public transactor_ports {
	
	public:
	
	  SC_CTOR(aes_transactor){   
		
		   cout.unsetf(ios::dec);
		   cout.setf(ios::hex);
		   		   
	  }
			 
				  
			void resetea(void){
		    	reset.write(0);
				wait(clk->posedge_event());
				reset.write(1);
				cout << "Reseted" << endl;
			}	
			
			void encrypt(sc_biguint<128> data, sc_biguint<192> key){
					
				wait(clk->posedge_event());
                
				//To RT model
				rt_load_o.write(1);
				rt_aes_data_o.write(data);
				rt_aes_key_o.write(key);
				rt_decrypt_o.write(0);
				
				//To C model through fifos
				c_aes_data_o.write(data);
				c_aes_key_o.write(key);
				c_decrypt_o.write(0);

				//cout << "Encripting data 0x"  << (int)(sc_uint<32>)data.range(127,96) << " " << (int)(sc_uint<32>)data.range(95,64) << " " << (int)(sc_uint<32>)data.range(63,32) <<" " << (int)(sc_uint<32>)data.range(31,0) << endl;	  				
      			//cout << "Encripting with key 0x"  << (int)(sc_uint<32>)key.range(191,160) <<" " << (int)(sc_uint<32>)key.range(159,128) << " " <<(int)(sc_uint<32>)key.range(127,96) <<" " << (int)(sc_uint<32>)key.range(95,64) <<" " << (int)(sc_uint<32>)key.range(63,32) <<" " <<(int)(sc_uint<32>)key.range(31,0) << endl;	  					
				
				wait(clk->posedge_event());
				rt_load_o.write(0);
				wait(rt_aes_ready_i->posedge_event());
			}	

			void decrypt(sc_biguint<128> data, sc_biguint<192> key){
					
				wait(clk->posedge_event());
                
				//To RT model
				rt_load_o.write(1);
				rt_aes_data_o.write(data);
				rt_aes_key_o.write(key);
				rt_decrypt_o.write(1);
				
				//To C model through fifos
				c_aes_data_o.write(data);
				c_aes_key_o.write(key);
				c_decrypt_o.write(1);
								
				wait(clk->posedge_event());
				rt_load_o.write(0);
				wait(rt_aes_ready_i->posedge_event());
						
			}	
		
			void wait_cycles(int cycles){
				for(int i=0;i<cycles;i++){
					wait(clk->posedge_event());
				}
			}
			
};