diff options
Diffstat (limited to 'bench/tb_curve_multiplier_256.v')
| -rw-r--r-- | bench/tb_curve_multiplier_256.v | 525 |
1 files changed, 267 insertions, 258 deletions
diff --git a/bench/tb_curve_multiplier_256.v b/bench/tb_curve_multiplier_256.v index c7839e0..a2a6769 100644 --- a/bench/tb_curve_multiplier_256.v +++ b/bench/tb_curve_multiplier_256.v @@ -2,11 +2,11 @@ // // tb_curve_multiplier_256.v // ----------------------------------------------------------------------------- -// Testbench for 256-bit curve point scalar multiplier. +// Testbench for 256-bit curve base point scalar multiplier. // // Authors: Pavel Shatov // -// Copyright (c) 2016, NORDUnet A/S +// Copyright (c) 2016, 2018 NORDUnet A/S // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: @@ -36,265 +36,274 @@ // //------------------------------------------------------------------------------ -//------------------------------------------------------------------------------ -`timescale 1ns / 1ps -//------------------------------------------------------------------------------ - module tb_curve_multiplier_256; - // - // Test Vectors - // - - /* Q = d * G */ - localparam [255:0] K_1 = 256'h70a12c2db16845ed56ff68cfc21a472b3f04d7d6851bf6349f2d7d5b3452b38a; - localparam [255:0] PX_1 = 256'h8101ece47464a6ead70cf69a6e2bd3d88691a3262d22cba4f7635eaff26680a8; - localparam [255:0] PY_1 = 256'hd8a12ba61d599235f67d9cb4d58f1783d3ca43e78f0a5abaa624079936c0c3a9; - - /* R = k * G */ - localparam [255:0] K_2 = 256'h580ec00d856434334cef3f71ecaed4965b12ae37fa47055b1965c7b134ee45d0; - localparam [255:0] PX_2 = 256'h7214bc9647160bbd39ff2f80533f5dc6ddd70ddf86bb815661e805d5d4e6f27c; - localparam [255:0] PY_2 = 256'h8b81e3e977597110c7cf2633435b2294b72642987defd3d4007e1cfc5df84541; - - /* O = n * G */ - localparam [255:0] K_3 = 256'hffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551; - localparam [255:0] PX_3 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - localparam [255:0] PY_3 = 256'h0000000000000000000000000000000000000000000000000000000000000000; - - /* H = 2 * G */ - localparam [255:0] K_4 = 256'h0000000000000000000000000000000000000000000000000000000000000002; - localparam [255:0] PX_4 = 256'h7cf27b188d034f7e8a52380304b51ac3c08969e277f21b35a60b48fc47669978; - localparam [255:0] PY_4 = 256'h07775510db8ed040293d9ac69f7430dbba7dade63ce982299e04b79d227873d1; - - /* G = (n + 1) * G */ - localparam [255:0] K_5 = 256'hffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551 + 'd1; - localparam [255:0] PX_5 = 256'h6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296; - localparam [255:0] PY_5 = 256'h4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5; - - /* H = (n + 2) * G */ - localparam [255:0] K_6 = 256'hffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551 + 'd2; - localparam [255:0] PX_6 = 256'h7cf27b188d034f7e8a52380304b51ac3c08969e277f21b35a60b48fc47669978; - localparam [255:0] PY_6 = 256'h07775510db8ed040293d9ac69f7430dbba7dade63ce982299e04b79d227873d1; - - - // - // Core Parameters - // - localparam WORD_COUNTER_WIDTH = 3; - localparam OPERAND_NUM_WORDS = 8; - - - // - // Clock (100 MHz) - // - reg clk = 1'b0; - always #5 clk = ~clk; - - - // - // Inputs, Outputs - // - reg rst_n; - reg ena; - wire rdy; - - - // - // Buffers (K, PX, PY) - // - wire [WORD_COUNTER_WIDTH-1:0] core_k_addr; - wire [WORD_COUNTER_WIDTH-1:0] core_px_addr; - wire [WORD_COUNTER_WIDTH-1:0] core_py_addr; - - wire core_px_wren; - wire core_py_wren; - - wire [ 32-1:0] core_k_data; - wire [ 32-1:0] core_px_data; - wire [ 32-1:0] core_py_data; - - reg [WORD_COUNTER_WIDTH-1:0] tb_k_addr; - reg [WORD_COUNTER_WIDTH-1:0] tb_pxy_addr; - - reg tb_k_wren; - - reg [ 31:0] tb_k_data; - wire [ 31:0] tb_px_data; - wire [ 31:0] tb_py_data; - - bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) - bram_k - ( .clk(clk), - .a_addr(tb_k_addr), .a_wr(tb_k_wren), .a_in(tb_k_data), .a_out(), - .b_addr(core_k_addr), .b_out(core_k_data) - ); - - bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) - bram_px - ( .clk(clk), - .a_addr(core_px_addr), .a_wr(core_px_wren), .a_in(core_px_data), .a_out(), - .b_addr(tb_pxy_addr), .b_out(tb_px_data) - ); - - bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) - bram_py - ( .clk(clk), - .a_addr(core_py_addr), .a_wr(core_py_wren), .a_in(core_py_data), .a_out(), - .b_addr(tb_pxy_addr), .b_out(tb_py_data) - ); - - - // - // UUT - // - curve_mul_256 uut - ( - .clk (clk), - .rst_n (rst_n), - - .ena (ena), - .rdy (rdy), - - .k_addr (core_k_addr), - .rx_addr (core_px_addr), - .ry_addr (core_py_addr), - - .rx_wren (core_px_wren), - .ry_wren (core_py_wren), - - .k_din (core_k_data), - - .rx_dout (core_px_data), - .ry_dout (core_py_data) - ); - - - // - // Testbench Routine - // - reg ok = 1; - initial begin - - /* initialize control inputs */ - rst_n = 0; - ena = 0; - - /* wait for some time */ - #200; - - /* de-assert reset */ - rst_n = 1; - - /* wait for some time */ - #100; - - /* run tests */ - //test_curve_multiplier(K_1, PX_1, PY_1); - //test_curve_multiplier(K_2, PX_2, PY_2); - //test_curve_multiplier(K_3, PX_3, PY_3); - //test_curve_multiplier(K_4, PX_4, PY_4); - //test_curve_multiplier(K_5, PX_5, PY_5); - test_curve_multiplier(K_6, PX_6, PY_6); - - /* print result */ - if (ok) $display("tb_curve_multiplier_256: SUCCESS"); - else $display("tb_curve_multiplier_256: FAILURE"); - // - //$finish; - // - end - - - // - // Test Task - // - reg p_ok; - - integer w; - - task test_curve_multiplier; - - input [255:0] k; - input [255:0] px; - input [255:0] py; - - reg [255:0] k_shreg; - reg [255:0] px_shreg; - reg [255:0] py_shreg; - - begin - - /* start filling memories */ - tb_k_wren = 1; - - /* initialize shift registers */ - k_shreg = k; - - /* write all the words */ - for (w=0; w<OPERAND_NUM_WORDS; w=w+1) begin - - /* set addresses */ - tb_k_addr = w[WORD_COUNTER_WIDTH-1:0]; - - /* set data words */ - tb_k_data = k_shreg[31:0]; - - /* shift inputs */ - k_shreg = {{32{1'bX}}, k_shreg[255:32]}; - - /* wait for 1 clock tick */ - #10; - - end - - /* wipe addresses */ - tb_k_addr = {WORD_COUNTER_WIDTH{1'bX}}; - - /* wipe data words */ - tb_k_data = {32{1'bX}}; - - /* stop filling memories */ - tb_k_wren = 0; - - /* start operation */ - ena = 1; - - /* clear flag */ - #10 ena = 0; - - /* wait for operation to complete */ - while (!rdy) #10; - - /* read result */ - for (w=0; w<OPERAND_NUM_WORDS; w=w+1) begin - - /* set address */ - tb_pxy_addr = w[WORD_COUNTER_WIDTH-1:0]; - - /* wait for 1 clock tick */ - #10; - - /* store data word */ - px_shreg = {tb_px_data, px_shreg[255:32]}; - py_shreg = {tb_py_data, py_shreg[255:32]}; - - end - - /* compare */ - p_ok = (px_shreg == px) && - (py_shreg == py); - - /* display results */ - $display("test_curve_multiplier(): %s", p_ok ? "OK" : "ERROR"); - - /* update global flag */ - ok = ok && p_ok; - - end - - endtask - + // + // Test Vectors + // + `include "ecdsa256_test_vector_nsa.vh" + `include "ecdsa_test_vector_randomized.vh" + + + // + // Core Parameters + // + localparam WORD_COUNTER_WIDTH = 3; + localparam OPERAND_NUM_WORDS = 8; + + + // + // P-256 Domain Parameters + // + localparam ECDSA_P256_N = + {32'hffffffff, 32'h00000000, 32'hffffffff, 32'hffffffff, + 32'hbce6faad, 32'ha7179e84, 32'hf3b9cac2, 32'hfc632551}; + + localparam ECDSA_P256_GX = + {32'h6b17d1f2, 32'he12c4247, 32'hf8bce6e5, 32'h63a440f2, + 32'h77037d81, 32'h2deb33a0, 32'hf4a13945, 32'hd898c296}; + + localparam ECDSA_P256_GY = + {32'h4fe342e2, 32'hfe1a7f9b, 32'h8ee7eb4a, 32'h7c0f9e16, + 32'h2bce3357, 32'h6b315ece, 32'hcbb64068, 32'h37bf51f5}; + + localparam ECDSA_P256_HX = + {32'h7cf27b18, 32'h8d034f7e, 32'h8a523803, 32'h04b51ac3, + 32'hc08969e2, 32'h77f21b35, 32'ha60b48fc, 32'h47669978}; + + localparam ECDSA_P256_HY = + {32'h07775510, 32'hdb8ed040, 32'h293d9ac6, 32'h9f7430db, + 32'hba7dade6, 32'h3ce98229, 32'h9e04b79d, 32'h227873d1}; + + + // + // Clock (100 MHz) + // + reg clk = 1'b0; + always #5 clk = ~clk; + + + // + // Inputs, Outputs + // + reg rst_n; + reg ena; + wire rdy; + + + // + // Buffers (K, PX, PY) + // + wire [WORD_COUNTER_WIDTH-1:0] core_k_addr; + wire [WORD_COUNTER_WIDTH-1:0] core_pxy_addr; + + wire core_px_wren; + wire core_py_wren; + + wire [ 32-1:0] core_k_data; + wire [ 32-1:0] core_pxy_data; + + reg [WORD_COUNTER_WIDTH-1:0] tb_k_addr; + reg [WORD_COUNTER_WIDTH-1:0] tb_pxy_addr; + + reg tb_k_wren; + + reg [ 31:0] tb_k_data; + wire [ 31:0] tb_px_data; + wire [ 31:0] tb_py_data; + + bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_k + ( .clk(clk), + .a_addr(tb_k_addr), .a_wr(tb_k_wren), .a_in(tb_k_data), .a_out(), + .b_addr(core_k_addr), .b_out(core_k_data) + ); + + bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_px + ( .clk(clk), + .a_addr(core_pxy_addr), .a_wr(core_px_wren), .a_in(core_pxy_data), .a_out(), + .b_addr(tb_pxy_addr), .b_out(tb_px_data) + ); + + bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_py + ( .clk(clk), + .a_addr(core_pxy_addr), .a_wr(core_py_wren), .a_in(core_pxy_data), .a_out(), + .b_addr(tb_pxy_addr), .b_out(tb_py_data) + ); + + + // + // UUT + // + ecdsa256_base_point_multiplier uut + ( + .clk (clk), + .rst_n (rst_n), + + .ena (ena), + .rdy (rdy), + + .k_addr (core_k_addr), + .rxy_addr (core_pxy_addr), + + .rx_wren (core_px_wren), + .ry_wren (core_py_wren), + + .k_din (core_k_data), + + .rxy_dout (core_pxy_data) + ); + + + // + // Testbench Routine + // + reg ok = 1; + initial begin + + /* initialize control inputs */ + rst_n = 0; + ena = 0; + + /* wait for some time */ + #200; + + /* de-assert reset */ + rst_n = 1; + + /* wait for some time */ + #100; + + /* run tests */ + $display("1. Q1 = d1 * G..."); + test_curve_multiplier(ECDSA_P256_D_NSA, ECDSA_P256_QX_NSA, ECDSA_P256_QY_NSA); + + $display("2. R = k * G..."); + test_curve_multiplier(ECDSA_P256_K_NSA, ECDSA_P256_RX_NSA, ECDSA_P256_RY_NSA); + + $display("3. Q2 = d2 * G..."); + test_curve_multiplier(ECDSA_P256_D_RANDOM, ECDSA_P256_QX_RANDOM, ECDSA_P256_QY_RANDOM); + + $display("4. O = n * G..."); + test_curve_multiplier(ECDSA_P256_N, 256'd0, 256'd0); + + $display("5. G = (n + 1) * G..."); + test_curve_multiplier(ECDSA_P256_N + 256'd1, ECDSA_P256_GX, ECDSA_P256_GY); + + $display("6. H = 2 * G..."); + test_curve_multiplier(256'd2, ECDSA_P256_HX, ECDSA_P256_HY); + + $display("7. H = (n + 2) * G..."); + test_curve_multiplier(ECDSA_P256_N + 256'd2, ECDSA_P256_HX, ECDSA_P256_HY); + + /* print result */ + if (ok) $display("tb_curve_multiplier_256: SUCCESS"); + else $display("tb_curve_multiplier_256: FAILURE"); + + //$finish; + + end + + + // + // Test Task + // + reg p_ok; + + integer w; + + task test_curve_multiplier; + + input [255:0] k; + input [255:0] px; + input [255:0] py; + + reg [255:0] k_shreg; + reg [255:0] px_shreg; + reg [255:0] py_shreg; + + begin + + /* start filling memories */ + tb_k_wren = 1; + + /* initialize shift registers */ + k_shreg = k; + + /* write all the words */ + for (w=0; w<OPERAND_NUM_WORDS; w=w+1) begin + + /* set addresses */ + tb_k_addr = w[WORD_COUNTER_WIDTH-1:0]; + + /* set data words */ + tb_k_data = k_shreg[31:0]; + + /* shift inputs */ + k_shreg = {{32{1'bX}}, k_shreg[255:32]}; + + /* wait for 1 clock tick */ + #10; + + end + + /* wipe addresses */ + tb_k_addr = {WORD_COUNTER_WIDTH{1'bX}}; + + /* wipe data words */ + tb_k_data = {32{1'bX}}; + + /* stop filling memories */ + tb_k_wren = 0; + + /* start operation */ + ena = 1; + + /* clear flag */ + #10 ena = 0; + + /* wait for operation to complete */ + while (!rdy) #10; + + /* read result */ + for (w=0; w<OPERAND_NUM_WORDS; w=w+1) begin + + /* set address */ + tb_pxy_addr = w[WORD_COUNTER_WIDTH-1:0]; + + /* wait for 1 clock tick */ + #10; + + /* store data word */ + px_shreg = {tb_px_data, px_shreg[255:32]}; + py_shreg = {tb_py_data, py_shreg[255:32]}; + + end + + /* compare */ + p_ok = (px_shreg === px) && + (py_shreg === py); + + /* display results */ + if (p_ok) $display("test_curve_multiplier(): OK"); + else begin + $display("test_curve_multiplier(): ERROR"); + $display("ref_px == %x", px); + $display("calc_px == %x", px_shreg); + $display("ref_py == %x", py); + $display("calc_py == %x", py_shreg); + end + + /* update global flag */ + ok = ok && p_ok; + + end + + endtask + endmodule |