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----------------------------------------------------------------------- ---- ---- ---- 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;