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schengopen |
////////////////////////////////////////////////////////////////////////
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//// ////
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//// This file is part of the AES SystemVerilog Behavioral ////
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//// Model project ////
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//// http://www.opencores.org/cores/aes_beh_model/ ////
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//// ////
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//// Description ////
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//// Implementation of AES SystemVerilog Behavioral ////
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//// Model according to AES Behavioral Model specification document.////
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//// ////
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//// To Do: ////
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//// - ////
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//// ////
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//// Author(s): ////
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//// - scheng, schengopencores@opencores.org ////
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//// ////
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////////////////////////////////////////////////////////////////////////
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//// ////
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//// Copyright (C) 2009 Authors and OPENCORES.ORG ////
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//// ////
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//// This source file may be used and distributed without ////
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//// restriction provided that this copyright statement is not ////
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//// removed from the file and that any derivative work contains ////
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//// the original copyright notice and the associated disclaimer. ////
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//// ////
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//// This source file is free software; you can redistribute it ////
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//// and/or modify it under the terms of the GNU Lesser General ////
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//// Public License as published by the Free Software Foundation; ////
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//// either version 2.1 of the License, or (at your option) any ////
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//// later version. ////
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//// ////
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//// This source is distributed in the hope that it will be ////
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//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
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//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
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//// PURPOSE. See the GNU Lesser General Public License for more ////
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//// details. ////
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//// ////
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//// You should have received a copy of the GNU Lesser General ////
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//// Public License along with this source; if not, download it ////
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//// from http://www.opencores.org/lgpl.shtml ////
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//// ////
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////////////////////////////////////////////////////////////////////////
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// This is a testbench for verification of the aes encryption model against
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// selected test vectors in FIPS-197, SP800-38a, and AESAVS. 128/192/256-bit
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// encryption models are tested. Each model is tested with the following
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// vectors
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//
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// - FIPS-197 sample vector test. FIPS-197 appendix C.
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// - ECB-AES128/192/256.Encrypt sample vector test. SP800-38a appendix F.
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// - GFSbox Known Answer Test vectors. AESAVS appendix B.
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// - KeySbox Known Answer Test. AESAVS appendix C.
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// - VarTxt Known Answer Test. AESAVS appendix D.
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// - VarKey Known Answer Test. AESAVS appendix E.
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module aes_beh_model_encrypt_tb;
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// Include source file for AES behavioral model
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`include "aes_beh_model.sv"
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aes128_encrypt_t encrypt128;
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aes192_encrypt_t encrypt192;
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aes256_encrypt_t encrypt256;
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logic [0:127] ct;
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// Test vector file
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`include "aes_vec.sv"
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initial
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begin
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//--------------------------------------------------------------------------------
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//
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// Start of 128-bit model test
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//
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//--------------------------------------------------------------------------------
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encrypt128 = new;
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// FIPS-197 128-bit Sample Vector Test
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// FIPS-197 appendix C.1
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$display("\nFIPS-197 128-bit Sample Vector Test");
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for (int k=0; k<`FIPS197_128_VEC_SIZE; k++)
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begin
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encrypt128.KeyExpand(FIPS197_128_kt[k]);
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encrypt128.LoadPt(FIPS197_128_pt[k]);
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encrypt128.run(0);
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ct = encrypt128.GetState();
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$display("kt=%h pt=%h ct=%h expected=%h",FIPS197_128_kt[k],FIPS197_128_pt[k],ct,FIPS197_128_ct[k]);
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if (ct != FIPS197_128_ct[k])
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begin
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$display("***Mismatch");
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$stop;
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end
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end
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$display("FIPS-197 128-bit Sample Vector Test finished");
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// ECB-AES128.Encrypt sample vector test
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// SP800-38a appendix F.1.1
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$display("\nECB-AES128.Encrypt sample vector test");
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for (int k=0; k<`ECB_ENCRYPT_128_VEC_SIZE; k++)
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begin
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encrypt128.KeyExpand(ECBEncrypt_128_kt);
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encrypt128.LoadPt(ECBEncrypt_128_pt[k]);
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encrypt128.run(0);
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ct = encrypt128.GetState();
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$display("kt=%h pt=%h ct=%h expected=%h",ECBEncrypt_128_kt,ECBDecrypt_128_pt[k],ct,ECBDecrypt_128_ct[k]);
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if (ct != ECBEncrypt_128_ct[k])
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begin
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$display("***Mismatch");
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$stop;
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end
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end
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$display("ECB-AES128.Encrypt sample vector test finished");
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// 128-bit GFSbox Known Answer Test vectors.
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// AESAVS appendix B.1
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$display("\n128-bit GFSbox Known Answer Test");
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for (int k=0; k<`GFSbox_128_VEC_SIZE; k++)
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begin
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encrypt128.KeyExpand(GFSbox_128_kt);
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encrypt128.LoadPt(GFSbox_128_pt[k]);
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encrypt128.run(0);
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ct = encrypt128.GetState();
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$display("kt=%h pt=%h ct=%h expected=%h",GFSbox_128_kt,GFSbox_128_pt[k],ct,GFSbox_128_ct[k]);
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if (ct != GFSbox_128_ct[k])
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begin
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$display("***Mismatch");
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$stop;
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end
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end
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$display("128-bit GFSbox Known Answer Test finished");
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// KeySbox Known Answer Test. AESAVS appendix C.1.
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$display("\n128-bit KeySbox Known Answer Test");
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for (int k=0; k<`KEYSBOX_128_VEC_SIZE; k++)
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begin
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encrypt128.KeyExpand(KeySbox_128_kt[k]);
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encrypt128.LoadPt(KeySbox_128_pt);
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encrypt128.run(0);
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ct = encrypt128.GetState();
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$display("kt=%h pt=%h ct=%h expected=%h",KeySbox_128_kt[k],KeySbox_128_pt,ct,KeySbox_128_ct[k]);
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if (ct != KeySbox_128_ct[k])
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begin
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$display("***Mismatch");
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$stop;
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end
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end
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$display("128-bit KeySbox Known Answer Test finished");
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// VarTxt Known Answer Test. AESAVS appendix D.1.
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$display("\n128-bit VarTxt Known Answer Test");
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for (int k=0; k<`VARTXT_128_VEC_SIZE; k++)
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begin
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encrypt128.KeyExpand(VarTxt_128_kt);
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encrypt128.LoadPt(VarTxt_128_pt[k]);
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encrypt128.run(0);
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ct = encrypt128.GetState();
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$display("kt=%h pt=%h ct=%h expected=%h",VarTxt_128_kt,VarTxt_128_pt[k],ct,VarTxt_128_ct[k]);
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if (ct != VarTxt_128_ct[k])
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begin
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$display("***Mismatch");
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$stop;
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end
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end
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$display("128-bit VarTxt Known Answer Test finished");
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// VarKey Known Answer Test. AESAVS appendix E.1.
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$display("\n128-bit VarKey Known Answer Test");
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for (int k=0; k<`VARKEY_128_VEC_SIZE; k++)
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begin
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encrypt128.KeyExpand(VarKey_128_kt[k]);
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encrypt128.LoadPt(VarKey_128_pt);
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encrypt128.run(0);
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ct = encrypt128.GetState();
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$display("kt=%h pt=%h ct=%h expected=%h",VarKey_128_kt[k],VarKey_128_pt[k],ct,VarKey_128_ct[k]);
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if (ct != VarKey_128_ct[k])
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begin
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$display("***Mismatch");
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$stop;
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end
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end
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$display("128-bit VarKey Known Answer Test finished");
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//--------------------------------------------------------------------------------
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//
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// Start of 192-bit model test
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//
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//--------------------------------------------------------------------------------
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encrypt192 = new;
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// FIPS-197 192-bit Sample Vector Test
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// FIPS-197 appendix C.2
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$display("\nFIPS-197 192-bit Sample Vector Test");
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for (int k=0; k<`FIPS197_192_VEC_SIZE; k++)
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begin
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encrypt192.KeyExpand(FIPS197_192_kt[k]);
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encrypt192.LoadPt(FIPS197_192_pt[k]);
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encrypt192.run(0);
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ct = encrypt192.GetState();
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$display("kt=%h pt=%h ct=%h expected=%h",FIPS197_192_kt[k],FIPS197_192_pt[k],ct,FIPS197_192_ct[k]);
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if (ct != FIPS197_192_ct[k])
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begin
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$display("***Mismatch");
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$stop;
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end
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end
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$display("FIPS-197 192-bit Sample Vector Test finished");
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// ECB-AES192.Encrypt sample vector test
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// SP800-38a appendix F.1.3
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$display("\nECB-AES192.Encrypt sample vector test");
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for (int k=0; k<`ECB_ENCRYPT_192_VEC_SIZE; k++)
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begin
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encrypt192.KeyExpand(ECBEncrypt_192_kt);
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encrypt192.LoadPt(ECBEncrypt_192_pt[k]);
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encrypt192.run(0);
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ct = encrypt192.GetState();
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$display("kt=%h pt=%h ct=%h expected=%h",ECBDecrypt_192_kt,ECBDecrypt_192_pt[k],ct,ECBDecrypt_192_ct[k]);
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if (ct != ECBEncrypt_192_ct[k])
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begin
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$display("***Mismatch");
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$stop;
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end
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end
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$display("ECB-AES192.Encrypt sample vector test finished");
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// 192-bit GFSbox Known Answer Test vectors.
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// AESAVS appendix B.2
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$display("\n192-bit GFSbox Known Answer Test");
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for (int k=0; k<`GFSbox_192_VEC_SIZE; k++)
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begin
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encrypt192.KeyExpand(GFSbox_192_kt);
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encrypt192.LoadPt(GFSbox_192_pt[k]);
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encrypt192.run(0);
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ct = encrypt192.GetState();
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$display("kt=%h pt=%h ct=%h expected=%h",GFSbox_192_kt,GFSbox_192_pt[k],ct,GFSbox_192_ct[k]);
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if (ct != GFSbox_192_ct[k])
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begin
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$display("***Mismatch");
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$stop;
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end
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end
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$display("192-bit GFSbox Known Answer Test finished");
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// 192-bit KeySbox Known Answer Test. AESAVS appendix C.2.
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$display("\n192-bit KeySbox Known Answer Test");
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for (int k=0; k<`KEYSBOX_192_VEC_SIZE; k++)
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begin
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encrypt192.KeyExpand(KeySbox_192_kt[k]);
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encrypt192.LoadPt(KeySbox_192_pt);
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encrypt192.run(0);
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ct = encrypt192.GetState();
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$display("kt=%h pt=%h ct=%h expected=%h",KeySbox_192_kt[k],KeySbox_192_pt,ct,KeySbox_192_ct[k]);
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if (ct != KeySbox_192_ct[k])
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begin
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$display("***Mismatch");
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$stop;
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end
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end
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$display("192-bit KeySbox Known Answer Test finished");
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// 192-bit VarTxt Known Answer Test. AESAVS appendix D.2.
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$display("\n192-bit VarTxt Known Answer Test");
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for (int k=0; k<`VARTXT_192_VEC_SIZE; k++)
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begin
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encrypt192.KeyExpand(VarTxt_192_kt);
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encrypt192.LoadPt(VarTxt_192_pt[k]);
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encrypt192.run(0);
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ct = encrypt192.GetState();
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$display("kt=%h pt=%h ct=%h expected=%h",VarTxt_192_kt,VarTxt_192_pt[k],ct,VarTxt_192_ct[k]);
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if (ct != VarTxt_192_ct[k])
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begin
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$display("***Mismatch");
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$stop;
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end
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end
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$display("192-bit VarTxt Known Answer Test finished");
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// 192-bit VarKey Known Answer Test. AESAVS appendix E.2.
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$display("\n192-bit VarKey Known Answer Test");
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for (int k=0; k<`VARKEY_192_VEC_SIZE; k++)
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begin
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encrypt192.KeyExpand(VarKey_192_kt[k]);
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encrypt192.LoadPt(VarKey_192_pt);
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encrypt192.run(0);
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ct = encrypt192.GetState();
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$display("kt=%h pt=%h ct=%h expected=%h",VarKey_192_kt[k],VarKey_192_pt,ct,VarKey_192_ct[k]);
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if (ct != VarKey_192_ct[k])
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begin
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292 |
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$display("***Mismatch");
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$stop;
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end
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end
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$display("192-bit VarKey Known Answer Test finished");
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297 |
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//--------------------------------------------------------------------------------
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//
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300 |
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// Start of 256-bit model test
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301 |
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//
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302 |
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//--------------------------------------------------------------------------------
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encrypt256 = new;
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305 |
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// FIPS-197 256-bit Sample Vector Test
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// FIPS-197 appendix C.3
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$display("\nFIPS-197 256-bit Sample Vector Test");
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for (int k=0; k<`FIPS197_256_VEC_SIZE; k++)
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begin
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encrypt256.KeyExpand(FIPS197_256_kt[k]);
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encrypt256.LoadPt(FIPS197_256_pt[k]);
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encrypt256.run(0);
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ct = encrypt256.GetState();
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$display("kt=%h pt=%h ct=%h expected=%h",FIPS197_256_kt[k],FIPS197_256_pt[k],ct,FIPS197_256_ct[k]);
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if (ct != FIPS197_256_ct[k])
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begin
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318 |
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$display("***Mismatch");
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319 |
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$stop;
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320 |
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end
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321 |
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end
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322 |
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$display("FIPS-197 256-bit Sample Vector Test finished");
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323 |
|
|
|
324 |
|
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// ECB-AES256.Encrypt sample vector test
|
325 |
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// SP800-38a appendix F.1.5
|
326 |
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$display("\nECB-AES256.Encrypt sample vector test");
|
327 |
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for (int k=0; k<`ECB_ENCRYPT_256_VEC_SIZE; k++)
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328 |
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begin
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329 |
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encrypt256.KeyExpand(ECBEncrypt_256_kt);
|
330 |
|
|
encrypt256.LoadPt(ECBEncrypt_256_pt[k]);
|
331 |
|
|
encrypt256.run(0);
|
332 |
|
|
ct = encrypt256.GetState();
|
333 |
|
|
$display("kt=%h pt=%h ct=%h expected=%h",ECBDecrypt_256_kt,ECBDecrypt_256_pt[k],ct,ECBDecrypt_256_ct[k]);
|
334 |
|
|
if (ct != ECBDecrypt_256_ct[k])
|
335 |
|
|
begin
|
336 |
|
|
$display("***Mismatch");
|
337 |
|
|
$stop;
|
338 |
|
|
end
|
339 |
|
|
end
|
340 |
|
|
$display("ECB-AES256.Encrypt sample vector test finished");
|
341 |
|
|
|
342 |
|
|
// 256-bit GFSbox Known Answer Test vectors.
|
343 |
|
|
// AESAVS appendix B.2
|
344 |
|
|
$display("\n256-bit GFSbox Known Answer Test");
|
345 |
|
|
for (int k=0; k<`GFSbox_256_VEC_SIZE; k++)
|
346 |
|
|
begin
|
347 |
|
|
encrypt256.KeyExpand(GFSbox_256_kt);
|
348 |
|
|
encrypt256.LoadPt(GFSbox_256_pt[k]);
|
349 |
|
|
encrypt256.run(0);
|
350 |
|
|
ct = encrypt256.GetState();
|
351 |
|
|
$display("kt=%h pt=%h ct=%h expected=%h",GFSbox_256_kt,GFSbox_256_pt[k],ct,GFSbox_256_ct[k]);
|
352 |
|
|
if (ct != GFSbox_256_ct[k])
|
353 |
|
|
begin
|
354 |
|
|
$display("***Mismatch");
|
355 |
|
|
$stop;
|
356 |
|
|
end
|
357 |
|
|
end
|
358 |
|
|
$display("256-bit GFSbox Known Answer Test finished");
|
359 |
|
|
|
360 |
|
|
// 256-bit KeySbox Known Answer Test. AESAVS appendix C.2.
|
361 |
|
|
$display("\n256-bit KeySbox Known Answer Test");
|
362 |
|
|
for (int k=0; k<`KEYSBOX_256_VEC_SIZE; k++)
|
363 |
|
|
begin
|
364 |
|
|
encrypt256.KeyExpand(KeySbox_256_kt[k]);
|
365 |
|
|
encrypt256.LoadPt(KeySbox_256_pt);
|
366 |
|
|
encrypt256.run(0);
|
367 |
|
|
ct = encrypt256.GetState();
|
368 |
|
|
$display("kt=%h pt=%h ct=%h expected=%h",KeySbox_256_kt[k],KeySbox_256_pt,ct,KeySbox_256_ct[k]);
|
369 |
|
|
if (ct != KeySbox_256_ct[k])
|
370 |
|
|
begin
|
371 |
|
|
$display("***Mismatch");
|
372 |
|
|
$stop;
|
373 |
|
|
end
|
374 |
|
|
end
|
375 |
|
|
$display("256-bit KeySbox Known Answer Test finished");
|
376 |
|
|
|
377 |
|
|
// 256-bit VarTxt Known Answer Test. AESAVS appendix D.2.
|
378 |
|
|
$display("\n256-bit VarTxt Known Answer Test");
|
379 |
|
|
for (int k=0; k<`VARTXT_256_VEC_SIZE; k++)
|
380 |
|
|
begin
|
381 |
|
|
encrypt256.KeyExpand(VarTxt_256_kt);
|
382 |
|
|
encrypt256.LoadPt(VarTxt_256_pt[k]);
|
383 |
|
|
encrypt256.run(0);
|
384 |
|
|
ct = encrypt256.GetState();
|
385 |
|
|
$display("kt=%h pt=%h ct=%h expected=%h",VarTxt_256_kt,VarTxt_256_pt[k],ct,VarTxt_256_ct[k]);
|
386 |
|
|
if (ct != VarTxt_256_ct[k])
|
387 |
|
|
begin
|
388 |
|
|
$display("***Mismatch");
|
389 |
|
|
$stop;
|
390 |
|
|
end
|
391 |
|
|
end
|
392 |
|
|
$display("256-bit VarTxt Known Answer Test finished");
|
393 |
|
|
|
394 |
|
|
// 256-bit VarKey Known Answer Test. AESAVS appendix E.2.
|
395 |
|
|
$display("\n256-bit VarKey Known Answer Test");
|
396 |
|
|
for (int k=0; k<`VARKEY_256_VEC_SIZE; k++)
|
397 |
|
|
begin
|
398 |
|
|
encrypt256.KeyExpand(VarKey_256_kt[k]);
|
399 |
|
|
encrypt256.LoadPt(VarKey_256_pt);
|
400 |
|
|
encrypt256.run(0);
|
401 |
|
|
ct = encrypt256.GetState();
|
402 |
|
|
$display("kt=%h pt=%h ct=%h expected=%h",VarKey_256_kt[k],VarKey_256_pt,ct,VarKey_256_ct[k]);
|
403 |
|
|
if (ct != VarKey_256_ct[k])
|
404 |
|
|
begin
|
405 |
|
|
$display("***Mismatch");
|
406 |
|
|
$stop;
|
407 |
|
|
end
|
408 |
|
|
end
|
409 |
|
|
$display("256-bit VarKey Known Answer Test finished");
|
410 |
|
|
end
|
411 |
|
|
endmodule
|