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|
//======================================================================
//
// sha256_k_constants.v
// --------------------
// The table K with constants in the SHA-256 hash function.
// A simple combinational ROM basically.
//
//
// Author: Joachim Strombergson
// Copyright (c) 2014 NORDUnet A/S
// All rights reserved.
//
// 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.
//
//======================================================================
module sha256_k_constants(
input wire [5 : 0] addr,
output wire [31 : 0] K
);
//----------------------------------------------------------------
// Wires.
//----------------------------------------------------------------
reg [31 : 0] tmp_K;
//----------------------------------------------------------------
// Concurrent connectivity for ports etc.
//----------------------------------------------------------------
assign K = tmp_K;
//----------------------------------------------------------------
// addr_mux
//----------------------------------------------------------------
always @*
begin : addr_mux
case(addr)
0:
begin
tmp_K = 32'h428a2f98;
end
1:
begin
tmp_K = 32'h71374491;
end
2:
begin
tmp_K = 32'hb5c0fbcf;
end
3:
begin
tmp_K = 32'he9b5dba5;
end
4:
begin
tmp_K = 32'h3956c25b;
end
5:
begin
tmp_K = 32'h59f111f1;
end
6:
begin
tmp_K = 32'h923f82a4;
end
7:
begin
tmp_K = 32'hab1c5ed5;
end
8:
begin
tmp_K = 32'hd807aa98;
end
9:
begin
tmp_K = 32'h12835b01;
end
10:
begin
tmp_K = 32'h243185be;
end
11:
begin
tmp_K = 32'h550c7dc3;
end
12:
begin
tmp_K = 32'h72be5d74;
end
13:
begin
tmp_K = 32'h80deb1fe;
end
14:
begin
tmp_K = 32'h9bdc06a7;
end
15:
begin
tmp_K = 32'hc19bf174;
end
16:
begin
tmp_K = 32'he49b69c1;
end
17:
begin
tmp_K = 32'hefbe4786;
end
18:
begin
tmp_K = 32'h0fc19dc6;
end
19:
begin
tmp_K = 32'h240ca1cc;
end
20:
begin
tmp_K = 32'h2de92c6f;
end
21:
begin
tmp_K = 32'h4a7484aa;
end
22:
begin
tmp_K = 32'h5cb0a9dc;
end
23:
begin
tmp_K = 32'h76f988da;
end
24:
begin
tmp_K = 32'h983e5152;
end
25:
begin
tmp_K = 32'ha831c66d;
end
26:
begin
tmp_K = 32'hb00327c8;
end
27:
begin
tmp_K = 32'hbf597fc7;
end
28:
begin
tmp_K = 32'hc6e00bf3;
end
29:
begin
tmp_K = 32'hd5a79147;
end
30:
begin
tmp_K = 32'h06ca6351;
end
31:
begin
tmp_K = 32'h14292967;
end
32:
begin
tmp_K = 32'h27b70a85;
end
33:
begin
tmp_K = 32'h2e1b2138;
end
34:
begin
tmp_K = 32'h4d2c6dfc;
end
35:
begin
tmp_K = 32'h53380d13;
end
36:
begin
tmp_K = 32'h650a7354;
end
37:
begin
tmp_K = 32'h766a0abb;
end
38:
begin
tmp_K = 32'h81c2c92e;
end
39:
begin
tmp_K = 32'h92722c85;
end
40:
begin
tmp_K = 32'ha2bfe8a1;
end
41:
begin
tmp_K = 32'ha81a664b;
end
42:
begin
tmp_K = 32'hc24b8b70;
end
43:
begin
tmp_K = 32'hc76c51a3;
end
44:
begin
tmp_K = 32'hd192e819;
end
45:
begin
tmp_K = 32'hd6990624;
end
46:
begin
tmp_K = 32'hf40e3585;
end
47:
begin
tmp_K = 32'h106aa070;
end
48:
begin
tmp_K = 32'h19a4c116;
end
49:
begin
tmp_K = 32'h1e376c08;
end
50:
begin
tmp_K = 32'h2748774c;
end
51:
begin
tmp_K = 32'h34b0bcb5;
end
52:
begin
tmp_K = 32'h391c0cb3;
end
53:
begin
tmp_K = 32'h4ed8aa4a;
end
54:
begin
tmp_K = 32'h5b9cca4f;
end
55:
begin
tmp_K = 32'h682e6ff3;
end
56:
begin
tmp_K = 32'h748f82ee;
end
57:
begin
tmp_K = 32'h78a5636f;
end
58:
begin
tmp_K = 32'h84c87814;
end
59:
begin
tmp_K = 32'h8cc70208;
end
60:
begin
tmp_K = 32'h90befffa;
end
61:
begin
tmp_K = 32'ha4506ceb;
end
62:
begin
tmp_K = 32'hbef9a3f7;
end
63:
begin
tmp_K = 32'hc67178f2;
end
endcase // case (addr)
end // block: addr_mux
endmodule // sha256_k_constants
//======================================================================
// EOF sha256_k_constants.v
//======================================================================
|
