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////////////////////////////////////////////////////////////////// //// //// //// AES TESTBENCH BLOCK //// //// //// //// This file is part of the APB to AES128 project //// //// http://www.opencores.org/cores/apbtoaes128/ //// //// //// //// Description //// //// Implementation of APB IP core according to //// //// aes128_spec IP core specification document. //// //// //// //// To Do: Things are right here but always all block can suffer changes //// //// //// //// //// //// Author(s): - Felipe Fernandes Da Costa, fefe2560@gmail.com //// Julio Cesar //// ///////////////////////////////////////////////////////////////// //// //// //// Copyright (C) 2009 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 //// //// /////////////////////////////////////////////////////////////////// module tb_aes_ip(); localparam AES_CR = 4'd00; localparam AES_SR = 4'd01; localparam AES_DINR = 4'd02; localparam AES_DOUTR = 4'd03; localparam AES_KEYR0 = 4'd04; localparam AES_KEYR1 = 4'd05; localparam AES_KEYR2 = 4'd06; localparam AES_KEYR3 = 4'd07; localparam AES_IVR0 = 4'd08; localparam AES_IVR1 = 4'd09; localparam AES_IVR2 = 4'd10; localparam AES_IVR3 = 4'd11; // Configuratin Bits localparam DMAOUTEN = 32'h00000001 << 12; localparam DMAINEN = 32'h00000001 << 11; localparam ERRIE = 32'h00000001 << 10; localparam CCFIE = 32'h00000001 << 9; localparam ERRC = 32'h00000001 << 8; localparam CCFC = 32'h00000001 << 7; localparam EBC = 32'h00000000; localparam CBC = 32'h00000001 << 5; localparam CTR = 32'h00000001 << 6; localparam ENCRYPTION = 32'h00000000; localparam KEY_DERIV = 32'h00000001 << 3; localparam DECRYPTION = 32'h00000001 << 4; localparam KEY_DECRYP = KEY_DERIV | DECRYPTION; localparam ENABLE = 32'h00000001; localparam DISABLE = 32'h00000000; wire int_ccf, int_err; wire dma_req_wr, dma_req_rd; wire [31:0] PRDATA; reg [31:0] PWDATA; reg [3:0] PADDR; reg PCLK, PRESETn; reg PSEL, PENABLE, PWRITE; reg [31:0] data_rd; reg [127:0] data_in; reg [127:0] key_in; reg [127:0] iv_in; reg [127:0] result; reg [127:0] golden; reg [127:0] result_rd; reg [127:0] iv_rd; reg [127:0] key_rd; reg error_chk; aes_ip AES_IP ( .int_ccf ( int_ccf ), .int_err ( int_err ), .dma_req_wr ( dma_req_wr ), .dma_req_rd ( dma_req_rd ), .PRDATA ( PRDATA ), .PREADY ( PREADY ), .PSLVERR ( PSLVERR ), .PWDATA ( PWDATA ), .PADDR ( PADDR ), .PSEL ( PSEL ), .PENABLE ( PENABLE ), .PWRITE ( PWRITE ), .PCLK ( PCLK ), .PRESETn ( PRESETn ) ); initial begin $dumpfile("tb_aes_ip.vcd"); $dumpvars(0,tb_aes_ip); end task reset; begin PCLK = 0; PSEL = 0; PENABLE = 0; PWDATA = 0; PWRITE = 0; PADDR = 0; PRESETn = 0; @(posedge PCLK); PRESETn = 1; end endtask task apb_write; input [31:0] addr; input [31:0] data_in; begin PSEL <= 1; PWRITE <= 1; PENABLE <= 0; PADDR <= addr; PWDATA <= data_in; @(posedge PCLK); PENABLE <= 1; @(posedge PCLK); PSEL <= 0; PENABLE <= 0; end endtask task apb_read; input [31:0] addr; output [31:0] data_out; begin PSEL <= 1; PENABLE <= 0; PWRITE <= 0; PADDR <= addr; @(posedge PCLK); PENABLE <= 1; @(posedge PCLK); data_out = PRDATA; PENABLE <= 0; PSEL <= 0; end endtask task write_iv; input [127:0] iv_in; begin apb_write(AES_IVR0, iv_in[ 31:0]); apb_write(AES_IVR1, iv_in[ 63:32]); apb_write(AES_IVR2, iv_in[ 95:64]); apb_write(AES_IVR3, iv_in[127:96]); end endtask task read_iv; output [127:0] iv_out; begin apb_read(AES_IVR0, iv_out[ 31:0]); apb_read(AES_IVR1, iv_out[ 63:32]); apb_read(AES_IVR2, iv_out[ 95:64]); apb_read(AES_IVR3, iv_out[127:96]); end endtask task write_key; input [127:0] key_in; begin apb_write(AES_KEYR0, key_in[ 31:0]); apb_write(AES_KEYR1, key_in[ 63:32]); apb_write(AES_KEYR2, key_in[ 95:64]); apb_write(AES_KEYR3, key_in[127:96]); end endtask task read_key; output [127:0] key_out; begin apb_read(AES_KEYR0, key_out[ 31:0]); apb_read(AES_KEYR1, key_out[ 63:32]); apb_read(AES_KEYR2, key_out[ 95:64]); apb_read(AES_KEYR3, key_out[127:96]); end endtask task write_data; input [127:0] data_in; begin apb_write(AES_DINR, data_in[127:96]); apb_write(AES_DINR, data_in[ 95:64]); apb_write(AES_DINR, data_in[ 63:32]); apb_write(AES_DINR, data_in[ 31: 0]); end endtask task write_data_dma; input [127:0] data_in; begin @(posedge dma_req_wr); apb_write(AES_DINR, data_in[127:96]); @(posedge dma_req_wr); apb_write(AES_DINR, data_in[ 95:64]); @(posedge dma_req_wr); apb_write(AES_DINR, data_in[ 63:32]); @(posedge dma_req_wr); apb_write(AES_DINR, data_in[ 31: 0]); end endtask task read_data; output [127:0] data_rd; begin apb_read(AES_DOUTR, data_rd[127:96]); apb_read(AES_DOUTR, data_rd[ 95:64]); apb_read(AES_DOUTR, data_rd[ 63:32]); apb_read(AES_DOUTR, data_rd[ 31: 0]); end endtask task read_data_dma; output [127:0] data_rd; begin @(posedge dma_req_rd); apb_read(AES_DOUTR, data_rd[127:96]); @(posedge dma_req_rd); apb_read(AES_DOUTR, data_rd[ 95:64]); @(posedge dma_req_rd); apb_read(AES_DOUTR, data_rd[ 63:32]); @(posedge dma_req_rd); apb_read(AES_DOUTR, data_rd[ 31: 0]); end endtask task check_result; input [127:0] result; input [127:0] golden; output error; begin error = 0; if(result != golden) begin $display("TEST FAILED!"); $display("Expected %x, obtained %x", golden, result); error = 1; end end endtask integer i, error; initial begin reset; iv_in = 128'h2b7e151628aed2a6abf7158809cf4f3c; key_in = 128'h00112233445566778899aabbccddeeff; write_iv(iv_in); read_iv(iv_rd); if(iv_rd != iv_in) begin $display("Access to IV register failed!"); $display("Expected %x, obtained %x", iv_in, iv_rd); $stop; end write_key(key_in); read_key(key_rd); if(key_rd != key_in) begin $display("Access to KEY register failed!"); $display("Expected %x, obtained %x", key_in, key_rd); $stop; end apb_write(AES_CR, ENABLE); write_key(128'd50); read_iv(data_rd); read_data(result); apb_write(AES_CR, DISABLE); apb_read(AES_SR, data_rd); apb_write(AES_CR, ERRC); //ECB TESTS //ENCRYPTION error = 0; data_in = 128'h00112233445566778899aabbccddeeff; key_in = 128'h000102030405060708090a0b0c0d0e0f; golden = 128'h69c4e0d86a7b0430d8cdb78070b4c55a; write_key(key_in); apb_write(AES_CR, ENABLE | CCFIE); write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; data_in = 128'h3243f6a8885a308d313198a2e0370734; key_in = 128'h2b7e151628aed2a6abf7158809cf4f3c; golden = 128'h3925841d02dc09fbdc118597196a0b32; apb_write(AES_CR, DISABLE); write_key(key_in); apb_write(AES_CR, ENABLE | CCFIE); write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // KEY DERIVATION key_in = 128'h2b7e151628aed2a6abf7158809cf4f3c; golden = 128'hd014f9a8c9ee2589e13f0cc8b6630ca6; apb_write(AES_CR, DISABLE); write_key(key_in); apb_write(AES_CR, KEY_DERIV | ENABLE | CCFIE); @(posedge int_ccf); @(posedge PCLK); read_key(result); check_result(result, golden, error_chk); error = error + error_chk; // DECRYPTION data_in = 128'h69c4e0d86a7b0430d8cdb78070b4c55a; key_in = 128'h13111d7fe3944a17f307a78b4d2b30c5; golden = 128'h00112233445566778899aabbccddeeff; apb_write(AES_CR, DISABLE); write_key(key_in); apb_write(AES_CR, DECRYPTION | ENABLE | CCFIE); write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // DECCYPTION WITH DERIVATION data_in = 128'h69c4e0d86a7b0430d8cdb78070b4c55a; key_in = 128'h000102030405060708090a0b0c0d0e0f; golden = 128'h00112233445566778899aabbccddeeff; apb_write(AES_CR, DISABLE); write_key(key_in); apb_write(AES_CR, KEY_DECRYP | ENABLE | CCFIE); write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; key_in = 128'h000102030405060708090a0b0c0d0e0f; apb_write(AES_CR, DISABLE); write_key(key_in); apb_write(AES_CR, KEY_DERIV | ENABLE | CCFIE); @(posedge int_ccf); data_in = 128'h69c4e0d86a7b0430d8cdb78070b4c55a; golden = 128'h00112233445566778899aabbccddeeff; apb_write(AES_CR, DISABLE); apb_write(AES_CR, DECRYPTION | ENABLE | CCFIE); write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; if(!error) $display("ECB TEST PASSED!"); else $display("ECB TEST FAILED!\n Founded %d errors", error); // CBC Encryption error = 0; apb_write(AES_CR, DISABLE); key_in = 128'h2b7e151628aed2a6abf7158809cf4f3c; iv_in = 128'h000102030405060708090a0b0c0d0e0f; //BLOCK 1 data_in = 128'h6bc1bee22e409f96e93d7e117393172a; golden = 128'h7649abac8119b246cee98e9b12e9197d; write_key(key_in); write_iv(iv_in); apb_write(AES_CR, CBC | ENABLE | CCFIE); write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // BLOCK 2 data_in = 128'hae2d8a571e03ac9c9eb76fac45af8e51; golden = 128'h5086cb9b507219ee95db113a917678b2; write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // BLOCK 3 data_in = 128'h30c81c46a35ce411e5fbc1191a0a52ef; golden = 128'h73bed6b8e3c1743b7116e69e22229516; write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // BLOCK 4 data_in = 128'hf69f2445df4f9b17ad2b417be66c3710; golden = 128'h3ff1caa1681fac09120eca307586e1a7; write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // CBC DECRYPTION apb_write(AES_CR, DISABLE); key_in = 128'h2b7e151628aed2a6abf7158809cf4f3c; iv_in = 128'h000102030405060708090a0b0c0d0e0f; //BLOCK 1 data_in = 128'h7649abac8119b246cee98e9b12e9197d; golden = 128'h6bc1bee22e409f96e93d7e117393172a; write_key(key_in); write_iv(iv_in); apb_write(AES_CR, CBC | KEY_DECRYP | ENABLE | CCFIE); write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // BLOCK 2 data_in = 128'h5086cb9b507219ee95db113a917678b2; golden = 128'hae2d8a571e03ac9c9eb76fac45af8e51 ; write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // BLOCK 3 data_in = 128'h73bed6b8e3c1743b7116e69e22229516; golden = 128'h30c81c46a35ce411e5fbc1191a0a52ef ; write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // BLOCK 4 data_in = 128'h3ff1caa1681fac09120eca307586e1a7; golden = 128'hf69f2445df4f9b17ad2b417be66c3710; write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; if(!error) $display("CBC TEST PASSED!"); else $display("CBC TEST FAILED!\n Founded %d errors", error); // CTR Encryption error = 0; apb_write(AES_CR, DISABLE); key_in = 128'h2b7e151628aed2a6abf7158809cf4f3c; iv_in = 128'hf0f1f2f3f4f5f6f7f8f9fafbfcfdfeff; //BLOCK 1 data_in = 128'h6bc1bee22e409f96e93d7e117393172a; golden = 128'h874d6191b620e3261bef6864990db6ce ; write_key(key_in); write_iv(iv_in); apb_write(AES_CR, CTR | ENABLE | CCFIE); write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // BLOCK 2 data_in = 128'hae2d8a571e03ac9c9eb76fac45af8e51; golden = 128'h9806f66b7970fdff8617187bb9fffdff; write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // BLOCK 3 data_in = 128'h30c81c46a35ce411e5fbc1191a0a52ef; golden = 128'h5ae4df3edbd5d35e5b4f09020db03eab; write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // BLOCK 4 data_in = 128'hf69f2445df4f9b17ad2b417be66c3710; golden = 128'h1e031dda2fbe03d1792170a0f3009cee ; write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // CTR DECRYPTION apb_write(AES_CR, DISABLE); iv_in = 128'hf0f1f2f3f4f5f6f7f8f9fafbfcfdfeff; //BLOCK 1 data_in = 128'h874d6191b620e3261bef6864990db6ce; golden = 128'h6bc1bee22e409f96e93d7e117393172a; write_iv(iv_in); apb_write(AES_CR, CTR | KEY_DECRYP | ENABLE | CCFIE); write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // BLOCK 2 data_in = 128'h9806f66b7970fdff8617187bb9fffdff; golden = 128'hae2d8a571e03ac9c9eb76fac45af8e51; write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // BLOCK 3 data_in = 128'h5ae4df3edbd5d35e5b4f09020db03eab; golden = 128'h30c81c46a35ce411e5fbc1191a0a52ef; write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // BLOCK 4 data_in = 128'h1e031dda2fbe03d1792170a0f3009cee; golden = 128'hf69f2445df4f9b17ad2b417be66c3710; write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; if(!error) $display("CTR TEST PASSED!"); else $display("CTR TEST FAILED!\n Founded %d errors", error); error = 0; data_in = 128'h00112233445566778899aabbccddeeff; key_in = 128'h000102030405060708090a0b0c0d0e0f; golden = 128'h69c4e0d86a7b0430d8cdb78070b4c55a; write_key(key_in); apb_write(AES_CR, ENABLE | CCFIE); write_data(data_in); repeat(30) @(posedge PCLK); apb_write(AES_CR, DISABLE); // KEY DERIVATION key_in = 128'h2b7e151628aed2a6abf7158809cf4f3c; golden = 128'hd014f9a8c9ee2589e13f0cc8b6630ca6; write_key(key_in); apb_write(AES_CR, KEY_DERIV | ENABLE | CCFIE); @(posedge int_ccf); @(posedge PCLK); // A LEITURA DA CHAVE DEVE SER INICIADA UM CLOCK AP\D2S A SUBIDA DE CCF read_key(result); check_result(result, golden, error_chk); // TEST SUSPEND FUNCTIONALITY key_in = 128'h2b7e151628aed2a6abf7158809cf4f3c; iv_in = 128'h000102030405060708090a0b0c0d0e0f; //BLOCK 1 data_in = 128'h6bc1bee22e409f96e93d7e117393172a; golden = 128'h7649abac8119b246cee98e9b12e9197d; write_key(key_in); write_iv(iv_in); apb_write(AES_CR, CBC | ENABLE | CCFIE); write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // BLOCK 2 data_in = 128'hae2d8a571e03ac9c9eb76fac45af8e51; golden = 128'h5086cb9b507219ee95db113a917678b2; write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; //suspend processing apb_write(AES_CR, DISABLE); result_rd = result; read_iv(iv_rd); read_key(key_rd); //begin new processing key_in = 128'h2b7e151628aed2a6abf7158809cf4f3c; golden = 128'hd014f9a8c9ee2589e13f0cc8b6630ca6; write_key(key_in); apb_write(AES_CR, KEY_DERIV | ENABLE | CCFIE); @(posedge int_ccf); @(posedge PCLK); // A LEITURA DA CHAVE DEVE SER INICIADA UM CLOCK AP\D2S A SUBIDA DE CCF read_key(result); check_result(result, golden, error_chk); error = error + error_chk; //continues processing // BLOCK 3 key_in = 128'h2b7e151628aed2a6abf7158809cf4f3c; apb_write(AES_CR, DISABLE); write_key(key_in); write_iv(result_rd); data_in = 128'h30c81c46a35ce411e5fbc1191a0a52ef; golden = 128'h73bed6b8e3c1743b7116e69e22229516; apb_write(AES_CR, CBC | ENABLE | CCFIE); write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; // BLOCK 4 data_in = 128'hf69f2445df4f9b17ad2b417be66c3710; golden = 128'h3ff1caa1681fac09120eca307586e1a7; write_data(data_in); @(posedge int_ccf); read_data(result); check_result(result, golden, error_chk); error = error + error_chk; if(!error) $display("SUSPEND MODE TEST PASSED!"); else $display("SUSPEND MODE TEST FAILED!\n Founded %d errors", error); //DMA TEST error = 0; apb_write(AES_CR, DISABLE); data_in = 128'h00112233445566778899aabbccddeeff; key_in = 128'h000102030405060708090a0b0c0d0e0f; golden = 128'h69c4e0d86a7b0430d8cdb78070b4c55a; write_key(key_in); apb_write(AES_CR, DMAINEN | DMAOUTEN | ENABLE | CCFIE); write_data_dma(data_in); @(posedge int_ccf); read_data_dma(result); check_result(result, golden, error_chk); error = error + error_chk; if(!error) $display("DMA TEST PASSED!"); else $display("DMA TEST FAILED!\n Founded %d errors", error); $stop; end always #10 PCLK = !PCLK; endmodule
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