CalPoly_PUF_Lab/sha256_constants.vhd at master · allRisc/CalPoly_PUF_Lab · GitHub

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-- SHA256 Hashing Module - Constants
-- Kristian Klomsten Skordal <kristian.skordal@wafflemail.net>

library ieee;
use ieee.std_logic_1164.all;

use work.sha256_types.all;

package sha256_constants is

	-- Initial intermediate hash values:
	constant INITIAL_A : std_logic_vector(31 downto 0) := x"6a09e667";
	constant INITIAL_B : std_logic_vector(31 downto 0) := x"bb67ae85";
	constant INITIAL_C : std_logic_vector(31 downto 0) := x"3c6ef372";
	constant INITIAL_D : std_logic_vector(31 downto 0) := x"a54ff53a";
	constant INITIAL_E : std_logic_vector(31 downto 0) := x"510e527f";
	constant INITIAL_F : std_logic_vector(31 downto 0) := x"9b05688c";
	constant INITIAL_G : std_logic_vector(31 downto 0) := x"1f83d9ab";
	constant INITIAL_H : std_logic_vector(31 downto 0) := x"5be0cd19";

	-- Array of constants used in the algorithm:
	constant constants : constant_array := (
			x"428a2f98", x"71374491", x"b5c0fbcf", x"e9b5dba5", x"3956c25b", x"59f111f1", x"923f82a4", x"ab1c5ed5",
			x"d807aa98", x"12835b01", x"243185be", x"550c7dc3", x"72be5d74", x"80deb1fe", x"9bdc06a7", x"c19bf174",
			x"e49b69c1", x"efbe4786", x"0fc19dc6", x"240ca1cc", x"2de92c6f", x"4a7484aa", x"5cb0a9dc", x"76f988da",
			x"983e5152", x"a831c66d", x"b00327c8", x"bf597fc7", x"c6e00bf3", x"d5a79147", x"06ca6351", x"14292967",
			x"27b70a85", x"2e1b2138", x"4d2c6dfc", x"53380d13", x"650a7354", x"766a0abb", x"81c2c92e", x"92722c85",
			x"a2bfe8a1", x"a81a664b", x"c24b8b70", x"c76c51a3", x"d192e819", x"d6990624", x"f40e3585", x"106aa070",
			x"19a4c116", x"1e376c08", x"2748774c", x"34b0bcb5", x"391c0cb3", x"4ed8aa4a", x"5b9cca4f", x"682e6ff3",
			x"748f82ee", x"78a5636f", x"84c87814", x"8cc70208", x"90befffa", x"a4506ceb", x"bef9a3f7", x"c67178f2"
		);
	-- TODO: Store in block ROM

end package;