Subversion Repositories gcm-aes

/////////////////////////////////////////////////////////////////////
////                                                             ////
////  				Test Bench for GCM-AES                       ////
////                                                             ////
////                                                             ////
////  Author: Tariq Bashir Ahmad and Guy Hutchison               ////
////          tariq.bashir@gmail.com                             ////
////          ghutchis@gmail.com                                 ////
////                                                             ////
////  Downloaded from: http://www.opencores.org/				  ////
////                                                             ////
/////////////////////////////////////////////////////////////////////
////                                                             ////
//// Copyright (C) 2010 	 Tariq Bashir Ahmad and 			 ////	
////                         Guy Hutchison						 ////
////                         http://www.ecs.umass.edu/~tbashir   ////
////                                                			 ////
////                                                             ////
//// 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 SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY     ////
//// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED   ////
//// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS   ////
//// FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR      ////
//// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,         ////
//// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES    ////
//// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE   ////
//// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR        ////
//// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF  ////
//// LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT  ////
//// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT  ////
//// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE         ////
//// POSSIBILITY OF SUCH DAMAGE.                                 ////
////                                                             ////
/////////////////////////////////////////////////////////////////////
 
 
 
`timescale 1ns / 1ps
`define SIZE 128
 
module test_bench;
 
  // Inputs
  reg clk;
  reg rst;
  reg [`SIZE-1:0] dii_data;
  reg [3:0]       dii_data_size;
  reg             dii_data_vld;
  reg             dii_data_type;
  reg             dii_last_word;
 
  reg [`SIZE-1:0] cii_K;
  reg             cii_ctl_vld;
  reg             cii_IV_vld;
 
 
  // Outputs
  wire                  dii_data_not_ready;
  wire [`SIZE-1:0]      Out_data;
  wire                  Out_vld;
  wire                  Tag_vld;
  wire [3:0]            Out_data_size;
  wire                  Out_last_word;
 
 
  	initial 
          begin
		// Initialize Inputs
	    clk = 0;
	    cii_ctl_vld   = 1'b0;
            cii_IV_vld = 1'b0;
	    dii_data_vld  = 1'b0;
	    dii_last_word = 1'b0;		
	    dii_data_type = 1'b0;
	    dii_data = 0;
	    dii_data_size = 0; 
            cii_K         = 0;
 
 
	    rst = 0;
	    repeat(1) @(posedge clk);
	    rst =  1;
	    repeat(10) @(posedge clk);
	    rst =  0;
 
 
	    @(negedge clk);
 
	    cii_ctl_vld = 1'b1;
	    cii_K       = 128'hfeffe9928665731c6d6a8f9467308308;   // {`SIZE{1'b0}};   //key
 
 
            @(negedge clk);
	    cii_ctl_vld = 1'b0;
 
 
            cii_IV_vld = 1'b1;
	    dii_data   = 128'hcafebabefacedbaddecaf888_00000001;    // {{(`SIZE-1){1'b0}},1'b1}; //IV (128 bits)
 
 
 
	    while(dii_data_not_ready)
	      @(negedge clk);	
 
	    cii_IV_vld = 1'b0;
            dii_data_size = 4'd15;   	//SIZE IS SET HERE	
	    dii_data_vld  = 1'b1;	// AAD
	    dii_data      = 128'hfeedfacedeadbeeffeedfacedeadbeef; // {`SIZE{1'b1}};
	    dii_data_type = 1'b1;    	//type = AAD 
	    dii_last_word = 1'b0;	//last word is false
 
	    @(negedge clk);
	    dii_data_vld  = 1'b0;	
 
 
	    while(dii_data_not_ready)
              @(negedge clk);
 
	    dii_data_vld  = 1'b1;	
	    dii_data_size = 4'd3;   	    //SIZE IS SET HERE	
	    dii_data      = 32'habaddad2;//{`SIZE{1'b1}};
	    dii_data_type = 1'b1;    	  //type = AAD
	    dii_last_word = 1'b0;   	 //last word is false
 
	    @(negedge clk);
	    dii_data_vld  = 1'b0;
 
 
        while(dii_data_not_ready)
              @(negedge clk);
 
            dii_data_vld  = 1'b1;
            dii_data_size = 4'd15;           //SIZE IS SET HERE  
            dii_data      = 128'hd9313225f88406e5a55909c5aff5269a;//{`SIZE{1'b1}};
            dii_data_type = 1'b0;         //type = PT
            dii_last_word = 1'b0;        //last word is true
 
            @(negedge clk);
            dii_data_vld  = 1'b0;
 
 
           while(dii_data_not_ready)
              @(negedge clk);
 
            dii_data_vld  = 1'b1;
            dii_data_size = 4'd15;           //SIZE IS SET HERE  
            dii_data      = 128'h86a7a9531534f7da2e4c303d8a318a72;//{`SIZE{1'b1}};
            dii_data_type = 1'b0;         //type = PT
            dii_last_word = 1'b0;        //last word is true
 
            @(negedge clk);
            dii_data_vld  = 1'b0;
 
            while(dii_data_not_ready)
              @(negedge clk);
 
            dii_data_vld  = 1'b1;
            dii_data_size = 4'd15;           //SIZE IS SET HERE  
            dii_data      = 128'h1c3c0c95956809532fcf0e2449a6b525;//{`SIZE{1'b1}};
            dii_data_type = 1'b0;         //type = PT
            dii_last_word = 1'b0;        //last word is true
 
            @(negedge clk);
            dii_data_vld  = 1'b0;
 
 
            while(dii_data_not_ready)
              @(negedge clk);
 
            dii_data_vld  = 1'b1;
            dii_data_size = 4'd11;           //SIZE IS SET HERE  
            dii_data      = 128'hb16aedf5aa0de657ba637b39;//{`SIZE{1'b1}};
            dii_data_type = 1'b0;         //type = PT
            dii_last_word = 1'b1;        //last word is true
 
            @(negedge clk);
            dii_data_vld  = 1'b0; 
 
	  end
 
 
 
	always
		#7 clk = ~clk;
 
 
 
 
	gcm_aes_v0 uut (
		  .clk(clk), 
		  .rst(rst), 
		  .dii_data(dii_data), 
		  .dii_data_size(dii_data_size),
		  .dii_data_vld(dii_data_vld), 
		  .dii_data_type(dii_data_type), 
		  .dii_data_not_ready(dii_data_not_ready), 
		  .dii_last_word(dii_last_word),
                  .cii_K(cii_K),
		  .cii_ctl_vld(cii_ctl_vld), 
		  .cii_IV_vld(cii_IV_vld), 
		  .Out_data(Out_data), 
		  .Out_vld(Out_vld), 
		  .Tag_vld(Tag_vld),
                  .Out_data_size(Out_data_size),
                  .Out_last_word(Out_last_word)
	          );
 
 
 
	initial
          begin
           // $vcdpluson;
				#5000;
            $stop;
          end
 
	initial
   $monitor($time,":DNR = %b, Out_data = %h, Out_vld = %b, Tag_vld = %b, Out_data_size=%d, Out_last_word=%d\n",dii_data_not_ready,Out_data,Out_vld,Tag_vld,Out_data_size,Out_last_word);
 
 
endmodule