Subversion Repositories mod_mult_exp

-----------------------------------------------------------------------

----                                                               ----

---- Montgomery modular multiplier and exponentiator               ----

----                                                               ----

---- This file is part of the Montgomery modular multiplier        ----

---- and exponentiator project                                     ----

---- http://opencores.org/project,mod_mult_exp                     ----

----                                                               ----

---- Description:                                                  ----

----   This is TestBench for the Montgomery modular exponentiator  ----

----   with the 512 bit width.                                     ----

----   It takes four nubers - base, power, modulus and Montgomery  ----

----   residuum (2^(2*word_length) mod N) as the input and results ----

----   the modular exponentiation A^B mod M.                       ----

----   In fact input data are read through one input controlled by ----

----   the ctrl input.                                             ----

---- To Do:                                                        ----

----                                                               ----

---- Author(s):                                                    ----

---- - Krzysztof Gajewski, gajos@opencores.org                     ----

----                       k.gajewski@gmail.com                    ----

----                                                               ----

-----------------------------------------------------------------------

----                                                               ----

---- Copyright (C) 2014 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                      ----

----                                                               ----

-----------------------------------------------------------------------

LIBRARY ieee;

use work.properties.ALL;

USE ieee.std_logic_1164.ALL;

-- Uncomment the following library declaration if using

-- arithmetic functions with Signed or Unsigned values

--USE ieee.numeric_std.ALL;

ENTITY ModExp512bitTB IS

END ModExp512bitTB;

ARCHITECTURE behavior OF ModExp512bitTB IS

    -- Component Declaration for the Unit Under Test (UUT)

    COMPONENT ModExp

    PORT(

         input         : in   STD_LOGIC_VECTOR(511 downto 0);

         ctrl          : in   STD_LOGIC_VECTOR(2 downto 0);

         clk           : in   STD_LOGIC;

         reset         : in   STD_LOGIC;

         data_in_ready : in   STD_LOGIC;

         ready         : out  STD_LOGIC;

         output        : out  STD_LOGIC_VECTOR(511 downto 0)

        );

    END COMPONENT;

   --Inputs

   signal input         : STD_LOGIC_VECTOR(511 downto 0) := (others => '0');

   signal ctrl          : STD_LOGIC_VECTOR(2 downto 0) := (others => '0');

   signal clk           : STD_LOGIC := '0';

   signal reset         : STD_LOGIC := '0';

   signal data_in_ready : STD_LOGIC := '0';

        --Outputs

   signal ready  : STD_LOGIC;

   signal output : STD_LOGIC_VECTOR(511 downto 0);

   -- Clock period definitions

   constant clk_period : time := 10 ns;

BEGIN

        -- Instantiate the Unit Under Test (UUT)

   uut: ModExp PORT MAP (

          input         => input,

          ctrl          => ctrl,

          clk           => clk,

          reset         => reset,

          data_in_ready => data_in_ready,

          ready         => ready,

          output        => output

        );

   -- Clock process definitions

   clk_process :process

   begin

                clk <= '1';

                wait for clk_period/2;

                clk <= '0';

                wait for clk_period/2;

   end process;

   -- Stimulus process

   stim_proc: process

   begin

      reset <= '1';

      wait for 100 ns;

                reset <= '0';

      wait for clk_period*10;

---- Preparation for test case 1 -----------------

--    base        = 409173825987017733751648542997566029938148046617392981389751408119740010106823408957031501223019018303621410623709446515603337041483208280918267736985 in decimal

--                = 0x1ffffffffffffffffffff003031300d060960864801650304020105000420f75db0d45d3189d910fc5d782745578c59481accf6f7cbf5e79bdecbe5233399 in hexadecimal

--    exponent    = 4991398326204141236652697335767169457643189913066361675852469427068576791337775798287514344957972397666876518042551243608843475377858636774161719825165098 in decimal

--                = 0x5f4d7261a28d1e9c9a45059eb0ce9122f6840ec7878d2d2a87057fb15db61eac7a37af6b0cb80f0001870b2a29e350f7b052cc89f1c7fbed07926640d6926b2a in hexhexadecimal

--    modulus     = 7630362531884975956392615644472323592768112181489355162005628253173318027895577525003064336256778044210380071348425604079063304117213210643679811834656203 in decimal

--                = 0x91b06f65a203bebb1cfa1b065cb2142e3771d113024a902f0829be8effe539ff6caa7c4b7f87e1913481e8c4f88a3f3e27a853179119aa029fe00e4c45a6b5cb in hexhexadecimal

--    expected_result = 1030188469358454649940099943953262093153216946958355916901057176262906329079894663437512624898962713254938994365603039233579679436863344699542897702118673 in decimal,  

--               in hex 13ab74d318c919ec6faa10bea70211d4a981e7c31fc5205a8bb28e754ea59bcdd7459d6880758653918e72376c061177fdd51e72bece6815aa24001bda6ea511

--    power_mod(

--         409173825987017733751648542997566029938148046617392981389751408119740010106823408957031501223019018303621410623709446515603337041483208280918267736985,

--         4991398326204141236652697335767169457643189913066361675852469427068576791337775798287514344957972397666876518042551243608843475377858636774161719825165098,

--         7630362531884975956392615644472323592768112181489355162005628253173318027895577525003064336256778044210380071348425604079063304117213210643679811834656203

--      ) = 

--        = 1030188469358454649940099943953262093153216946958355916901057176262906329079894663437512624898962713254938994365603039233579679436863344699542897702118673

--        = 13ab74d318c919ec6faa10bea70211d4a981e7c31fc5205a8bb28e754ea59bcdd7459d6880758653918e72376c061177fdd51e72bece6815aa24001bda6ea511 in hexadecimal

--    where 1398454690893823236632472980512935706632382980363069616905016603014572888067778885889245016848922097099694154000460402372958600055088633374563202044624216 is the residuum

--------------------------------------------------

                data_in_ready <= '1';

                ctrl <= mn_read_base;

                input <= x"0001ffffffffffffffffffff003031300d060960864801650304020105000420f75db0d45d3189d910fc5d782745578c59481accf6f7cbf5e79bdecbe5233399";

                wait for clk_period*2;

                ctrl <= mn_read_modulus;

                input <= x"91b06f65a203bebb1cfa1b065cb2142e3771d113024a902f0829be8effe539ff6caa7c4b7f87e1913481e8c4f88a3f3e27a853179119aa029fe00e4c45a6b5cb";

                wait for clk_period*2;

                ctrl <= mn_read_exponent;

                input <= x"5f4d7261a28d1e9c9a45059eb0ce9122f6840ec7878d2d2a87057fb15db61eac7a37af6b0cb80f0001870b2a29e350f7b052cc89f1c7fbed07926640d6926b2a";

                wait for clk_period*2;

                ctrl <= mn_read_residuum;

                input <= "00011010101100111000000100001111010111001110011000001010110100001111011110111000011110111011111111011111011001111011010101010101010110010011001000010110100100100000010000100101001111011100001101111011001011010100011101100100011100101001110000101011100100101110111100101110011111101000111100101010100010000100011111010101111000100111101101011011000010111010011011000100000101001000111011010110110100001111001100001110001111111110000000011001010101111000101010101000110111011000110110110000000100010111110101011000";

                wait for clk_period*2;

                ctrl <= mn_count_power;

                report "Please wait. It may take up ro few minutes..." severity note;

           wait until ready = '1' and clk = '0';

           if output /= x"13ab74d318c919ec6faa10bea70211d4a981e7c31fc5205a8bb28e754ea59bcdd7459d6880758653918e72376c061177fdd51e72bece6815aa24001bda6ea511" then

                 report "RESULT MISMATCH! Test case 1 failed" severity ERROR;

                 assert false severity failure;

           else

                 report "Test case 1 successful" severity note;

           end if;

           ctrl <= mn_show_result;

           wait for clk_period*10;

           ctrl <= mn_prepare_for_data;

           wait for clk_period*2;

---- Preparation for test case 2 -----------------

--    base        = 3273390607896141870013189696827599152216642046043064789483291368096133796404674554883270092325904157150886684127560071009217256545885393053328527589431 in decimal

--                = 0x100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000037 in hexadecimal

--    exponent    = 622376668989630299558359971768444342820680304013329676986135064534413345603604938346345762083389451304101819605682193623416033951320823027994905238921170 in decimal

--                = 0xbe21d214053f66c3e101fd875b531ecaccca3befca14d989ae2ffe4d6bbf1a3df0c694dc4c83af61ee3cf7c7bc97c9d6844d5d1fe428105082910c637c55fd2 in hexhexadecimal

--    modulus     = 3351951982485649274893506249551461531869841455148098344430890360930446855046914914263767984168972974033957028381338463851007479808527777429670210341401251 in decimal

--                = 0x400000000000000000000000000000000000000000000000000000000302929200000000000000000000000000000000000000000000000000005af3fbdb72a3 in hexhexadecimal

--    expected_result = 1135574785903187283000914738069914842639275616893687122668359807022003618585980215260939798952644749528921700342000274265548842002316414917974647561961683 in decimal,  

--               in hex 15ae92ed25cdbb29458414ad1a28fa35f5bfc311d7e1efedba753e48ccee1e9ff1d160714449bf6f85a0e3fe0784548b3c461ac5fbf28b7a1c3c83f4dff6c0d3

--    power_mod(

--        3273390607896141870013189696827599152216642046043064789483291368096133796404674554883270092325904157150886684127560071009217256545885393053328527589431,

--        622376668989630299558359971768444342820680304013329676986135064534413345603604938346345762083389451304101819605682193623416033951320823027994905238921170,

--        3351951982485649274893506249551461531869841455148098344430890360930446855046914914263767984168972974033957028381338463851007479808527777429670210341401251

--      ) = 

--        = 1135574785903187283000914738069914842639275616893687122668359807022003618585980215260939798952644749528921700342000274265548842002316414917974647561961683

--        = 15ae92ed25cdbb29458414ad1a28fa35f5bfc311d7e1efedba753e48ccee1e9ff1d160714449bf6f85a0e3fe0784548b3c461ac5fbf28b7a1c3c83f4dff6c0d3 in hexadecimal

--    where 3351951982485649274893506249551461531869841455148097408724357100071878499222574108103974817495155088879387961281773763412796138005544310585710276679277619 is the residuum

--------------------------------------------------

                ctrl <= mn_read_base;

                input <= x"00100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000037";

                wait for clk_period*2;

                ctrl <= mn_read_modulus;

                input <= x"400000000000000000000000000000000000000000000000000000000302929200000000000000000000000000000000000000000000000000005af3fbdb72a3";

                wait for clk_period*2;

                ctrl <= mn_read_exponent;

                input <= x"0be21d214053f66c3e101fd875b531ecaccca3befca14d989ae2ffe4d6bbf1a3df0c694dc4c83af61ee3cf7c7bc97c9d6844d5d1fe428105082910c637c55fd2";

                wait for clk_period*2;

                ctrl <= mn_read_residuum;

                input <= "00111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111001010100001100110001111100000111011101010001011101111101110101100000111111010100011111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111100110100000000001000000110110110010000010111000001100010111100011000101010110010110110111001110000110011";

                wait for clk_period*2;

                ctrl <= mn_count_power;

                report "Please wait. It may take up ro few minutes..." severity note;

                wait until ready = '1' and clk = '0';

            if output /= x"15ae92ed25cdbb29458414ad1a28fa35f5bfc311d7e1efedba753e48ccee1e9ff1d160714449bf6f85a0e3fe0784548b3c461ac5fbf28b7a1c3c83f4dff6c0d3" then

                  report "RESULT MISMATCH! Test case 2 failed" severity ERROR;

                  assert false severity failure;

            else

                  report "Test case 2 successful" severity note;

            end if;

                ctrl <= mn_show_result;

                wait for clk_period*10;

                ctrl <= mn_prepare_for_data;

                wait for clk_period*2;

       assert false severity failure;

   end process;

END;