Subversion Repositories sha256_hash_core

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-- Author:          Jonny Doin, jdoin@opencores.org, jonnydoin@gmail.com, jonnydoin@gridvortex.com

-- 

-- Create Date:     09:56:30 05/06/2016  

-- Module Name:     sha256_Ki_rom

-- Project Name:    sha256 processor

-- Target Devices:  Spartan-6

-- Tool versions:   ISE 14.7

-- Description: 

--

--      Initial values for the hash result registers.

--      This module is modelled as a fixed value function.

--      It can be implemented as a local constant fixed value.

--

------------------------------ COPYRIGHT NOTICE -----------------------------------------------------------------------

--                                                                   

--      This file is part of the SHA256 HASH CORE project http://opencores.org/project,sha256_hash_core

--                                                                   

--      Author(s):      Jonny Doin, jdoin@opencores.org, jonnydoin@gridvortex.com, jonnydoin@gmail.com

--                                                                   

--      Copyright (C) 2016 Jonny Doin

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

--                                                                   

--      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.gnu.org/licenses/lgpl.txt

--                                                                   

------------------------------ REVISION HISTORY -----------------------------------------------------------------------

--

-- 2016/05/22   v0.01.0010  [JD]    started development. design of blocks and port interfaces.

-- 2016/06/05   v0.01.0090  [JD]    all modules integrated. testbench for basic test vectors verification.

-- 2016/06/05   v0.01.0095  [JD]    verification failed. misalignment of words in the datapath. 

-- 2016/06/06   v0.01.0100  [JD]    first simulation verification against NIST-FIPS-180-4 test vectors passed.

--

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--  TODO

--  ====

--

--

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library ieee;

use ieee.std_logic_1164.all;

use ieee.numeric_std.all;

entity sha256_ki_rom is

    port (

        K0_o : out std_logic_vector (31 downto 0) := (others => 'X');

        K1_o : out std_logic_vector (31 downto 0) := (others => 'X');

        K2_o : out std_logic_vector (31 downto 0) := (others => 'X');

        K3_o : out std_logic_vector (31 downto 0) := (others => 'X');

        K4_o : out std_logic_vector (31 downto 0) := (others => 'X');

        K5_o : out std_logic_vector (31 downto 0) := (others => 'X');

        K6_o : out std_logic_vector (31 downto 0) := (others => 'X');

        K7_o : out std_logic_vector (31 downto 0) := (others => 'X')

    );

end sha256_ki_rom;

architecture behavioral of sha256_ki_rom is

begin

    --=============================================================================================

    -- CONSTANTS FOR Ki VALUES

    --=============================================================================================

    K0_o_proc:      K0_o <= x"6A09E667";

    K1_o_proc:      K1_o <= x"BB67AE85";

    K2_o_proc:      K2_o <= x"3C6EF372";

    K3_o_proc:      K3_o <= x"A54FF53A";

    K4_o_proc:      K4_o <= x"510E527F";

    K5_o_proc:      K5_o <= x"9B05688C";

    K6_o_proc:      K6_o <= x"1F83D9AB";

    K7_o_proc:      K7_o <= x"5BE0CD19";

end behavioral;