diff options
Diffstat (limited to 'bench')
| -rw-r--r-- | bench/tb_point_multiplier_384.v | 341 |
1 files changed, 341 insertions, 0 deletions
diff --git a/bench/tb_point_multiplier_384.v b/bench/tb_point_multiplier_384.v new file mode 100644 index 0000000..8aacafd --- /dev/null +++ b/bench/tb_point_multiplier_384.v @@ -0,0 +1,341 @@ +//------------------------------------------------------------------------------ +// +// tb_point_multiplier_384.v +// ----------------------------------------------------------------------------- +// Testbench for P-384 point scalar multiplier. +// +// Authors: Pavel Shatov +// +// Copyright (c) 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: +// +// - Redistributions of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// +// - Redistributions in binary form must reproduce the above copyright notice, +// this list of conditions and the following disclaimer in the documentation +// and/or other materials provided with the distribution. +// +// - Neither the name of the NORDUnet nor the names of its contributors may be +// used to endorse or promote products derived from this software without +// specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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 +//------------------------------------------------------------------------------ + +module tb_point_multiplier_384; + + + // + // Test Vectors + // + `include "../../../user/shatov/ecdh_fpga_model/test_vectors/ecdh_test_vectors.v" + + + + // + // Core Parameters + // + localparam WORD_COUNTER_WIDTH = 4; + localparam OPERAND_NUM_WORDS = 12; + + + // + // Clock (100 MHz) + // + reg clk = 1'b0; + always #5 clk = ~clk; + + + // + // Inputs, Outputs + // + reg rst_n; + reg ena; + wire rdy; + + + // + // Buffers (K, PX, PY, QX, QY) + // + 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 [WORD_COUNTER_WIDTH-1:0] core_qx_addr; + wire [WORD_COUNTER_WIDTH-1:0] core_qy_addr; + + wire core_qx_wren; + wire core_qy_wren; + + wire [ 32-1:0] core_k_data; + wire [ 32-1:0] core_px_data; + wire [ 32-1:0] core_py_data; + wire [ 32-1:0] core_qx_data; + wire [ 32-1:0] core_qy_data; + + reg [WORD_COUNTER_WIDTH-1:0] tb_k_addr; + reg [WORD_COUNTER_WIDTH-1:0] tb_pxy_addr; + reg [WORD_COUNTER_WIDTH-1:0] tb_qxy_addr; + + reg tb_k_wren; + reg tb_pxy_wren; + + reg [ 31:0] tb_k_data; + reg [ 31:0] tb_px_data; + reg [ 31:0] tb_py_data; + wire [ 31:0] tb_qx_data; + wire [ 31:0] tb_qy_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(tb_pxy_addr), .a_wr(tb_pxy_wren), .a_in(tb_px_data), .a_out(), + .b_addr(core_px_addr), .b_out(core_px_data) + ); + + bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_py + ( .clk(clk), + .a_addr(tb_pxy_addr), .a_wr(tb_pxy_wren), .a_in(tb_py_data), .a_out(), + .b_addr(core_py_addr), .b_out(core_py_data) + ); + + bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_qx + ( .clk(clk), + .a_addr(core_qx_addr), .a_wr(core_qx_wren), .a_in(core_qx_data), .a_out(), + .b_addr(tb_qxy_addr), .b_out(tb_qx_data) + ); + + bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_qy + ( .clk(clk), + .a_addr(core_qy_addr), .a_wr(core_qy_wren), .a_in(core_qy_data), .a_out(), + .b_addr(tb_qxy_addr), .b_out(tb_qy_data) + ); + + + // + // UUT + // + point_mul_384 uut + ( + .clk (clk), + .rst_n (rst_n), + + .ena (ena), + .rdy (rdy), + + .k_addr (core_k_addr), + .qx_addr (core_px_addr), + .qy_addr (core_py_addr), + .rx_addr (core_qx_addr), + .ry_addr (core_qy_addr), + + .rx_wren (core_qx_wren), + .ry_wren (core_qy_wren), + + .k_din (core_k_data), + .qx_din (core_px_data), + .qy_din (core_py_data), + .rx_dout (core_qx_data), + .ry_dout (core_qy_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. H = 2 * G..."); + test_point_multiplier(384'd2, P_384_G_X, P_384_G_Y, P_384_H_X, P_384_H_Y); + + $display(" 2. H = (n + 2) * G..."); + test_point_multiplier(P_384_N + 384'd2, P_384_G_X, P_384_G_Y, P_384_H_X, P_384_H_Y); + + $display(" 3. QA = dA * G..."); + test_point_multiplier(P_384_DA, P_384_G_X, P_384_G_Y, P_384_QA_X, P_384_QA_Y); + + $display(" 4. QB = dB * G..."); + test_point_multiplier(P_384_DB, P_384_G_X, P_384_G_Y, P_384_QB_X, P_384_QB_Y); + + $display(" 5. S = dB * QA..."); + test_point_multiplier(P_384_DB, P_384_QA_X, P_384_QA_Y, P_384_S_X, P_384_S_Y); + + $display(" 6. S = dA * QB..."); + test_point_multiplier(P_384_DA, P_384_QB_X, P_384_QB_Y, P_384_S_X, P_384_S_Y); + + $display(" 7. QA2 = 2 * QA..."); + test_point_multiplier(384'd2, P_384_QA_X, P_384_QA_Y, P_384_QA2_X, P_384_QA2_Y); + + $display(" 8. QA2 = (n + 2) * QA..."); + test_point_multiplier(P_384_N + 384'd2, P_384_QA_X, P_384_QA_Y, P_384_QA2_X, P_384_QA2_Y); + + $display(" 9. QB2 = 2 * QB..."); + test_point_multiplier(384'd2, P_384_QB_X, P_384_QB_Y, P_384_QB2_X, P_384_QB2_Y); + + $display("10. QB2 = (n + 2) * QB..."); + test_point_multiplier(P_384_N + 384'd2, P_384_QB_X, P_384_QB_Y, P_384_QB2_X, P_384_QB2_Y); + + + /* print result */ + if (ok) $display("tb_point_multiplier_384: SUCCESS"); + else $display("tb_point_multiplier_384: FAILURE"); + // + //$finish; + // + end + + + // + // Test Task + // + reg q_ok; + + integer w; + + task test_point_multiplier; + + input [383:0] k; + input [383:0] px; + input [383:0] py; + input [383:0] qx; + input [383:0] qy; + + reg [383:0] k_shreg; + reg [383:0] px_shreg; + reg [383:0] py_shreg; + reg [383:0] qx_shreg; + reg [383:0] qy_shreg; + + begin + + /* start filling memories */ + tb_k_wren = 1; + tb_pxy_wren = 1; + + /* initialize shift registers */ + k_shreg = k; + px_shreg = px; + py_shreg = py; + + /* 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]; + tb_pxy_addr = w[WORD_COUNTER_WIDTH-1:0]; + + /* set data words */ + tb_k_data = k_shreg[31:0]; + tb_px_data = px_shreg[31:0]; + tb_py_data = py_shreg[31:0]; + + /* shift inputs */ + k_shreg = {{32{1'bX}}, k_shreg[383:32]}; + px_shreg = {{32{1'bX}}, px_shreg[383:32]}; + py_shreg = {{32{1'bX}}, py_shreg[383:32]}; + + /* wait for 1 clock tick */ + #10; + + end + + /* wipe addresses */ + tb_k_addr = {WORD_COUNTER_WIDTH{1'bX}}; + tb_pxy_addr = {WORD_COUNTER_WIDTH{1'bX}}; + + /* wipe data words */ + tb_k_data = {32{1'bX}}; + tb_px_data = {32{1'bX}}; + tb_py_data = {32{1'bX}}; + + /* stop filling memories */ + tb_k_wren = 0; + tb_pxy_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_qxy_addr = w[WORD_COUNTER_WIDTH-1:0]; + + /* wait for 1 clock tick */ + #10; + + /* store data word */ + qx_shreg = {tb_qx_data, qx_shreg[383:32]}; + qy_shreg = {tb_qy_data, qy_shreg[383:32]}; + + end + + /* compare */ + q_ok = (qx_shreg == qx) && + (qy_shreg == qy); + + /* display results */ + $display("test_point_multiplier(): %s", q_ok ? "OK" : "ERROR"); + + /* update global flag */ + ok = ok && q_ok; + + end + + endtask + +endmodule + + +//------------------------------------------------------------------------------ +// End-of-File +//------------------------------------------------------------------------------ |