fpga: Add cores for SHA256
Cores originate from https://github.com/secworks/sha256. Original-commit: c43c72db097cbb5ebe29b7fa81484cbeaf19516b
This commit is contained in:
Martin Braun
@@ -0,0 +1,136 @@
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//======================================================================
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//
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// sha256_k_constants.v
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// --------------------
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// The table K with constants in the SHA-256 hash function.
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//
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//
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// Author: Joachim Strombergson
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// Copyright (c) 2013, Secworks Sweden AB
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or
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// without modification, are permitted provided that the following
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// conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in
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// the documentation and/or other materials provided with the
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// distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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//======================================================================
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`default_nettype none
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module sha256_k_constants(
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input wire [5 : 0] round,
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output wire [31 : 0] K
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);
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//----------------------------------------------------------------
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// Wires.
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//----------------------------------------------------------------
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reg [31 : 0] tmp_K;
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//----------------------------------------------------------------
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// Concurrent connectivity for ports etc.
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//----------------------------------------------------------------
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assign K = tmp_K;
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//----------------------------------------------------------------
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// round_mux
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//----------------------------------------------------------------
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always @*
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begin : round_mux
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case(round)
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00: tmp_K = 32'h428a2f98;
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01: tmp_K = 32'h71374491;
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02: tmp_K = 32'hb5c0fbcf;
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03: tmp_K = 32'he9b5dba5;
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04: tmp_K = 32'h3956c25b;
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05: tmp_K = 32'h59f111f1;
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06: tmp_K = 32'h923f82a4;
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07: tmp_K = 32'hab1c5ed5;
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08: tmp_K = 32'hd807aa98;
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09: tmp_K = 32'h12835b01;
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10: tmp_K = 32'h243185be;
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11: tmp_K = 32'h550c7dc3;
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12: tmp_K = 32'h72be5d74;
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13: tmp_K = 32'h80deb1fe;
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14: tmp_K = 32'h9bdc06a7;
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15: tmp_K = 32'hc19bf174;
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16: tmp_K = 32'he49b69c1;
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17: tmp_K = 32'hefbe4786;
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18: tmp_K = 32'h0fc19dc6;
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19: tmp_K = 32'h240ca1cc;
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20: tmp_K = 32'h2de92c6f;
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21: tmp_K = 32'h4a7484aa;
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22: tmp_K = 32'h5cb0a9dc;
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23: tmp_K = 32'h76f988da;
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24: tmp_K = 32'h983e5152;
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25: tmp_K = 32'ha831c66d;
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26: tmp_K = 32'hb00327c8;
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27: tmp_K = 32'hbf597fc7;
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28: tmp_K = 32'hc6e00bf3;
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29: tmp_K = 32'hd5a79147;
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30: tmp_K = 32'h06ca6351;
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31: tmp_K = 32'h14292967;
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32: tmp_K = 32'h27b70a85;
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33: tmp_K = 32'h2e1b2138;
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34: tmp_K = 32'h4d2c6dfc;
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35: tmp_K = 32'h53380d13;
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36: tmp_K = 32'h650a7354;
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37: tmp_K = 32'h766a0abb;
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38: tmp_K = 32'h81c2c92e;
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39: tmp_K = 32'h92722c85;
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40: tmp_K = 32'ha2bfe8a1;
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41: tmp_K = 32'ha81a664b;
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42: tmp_K = 32'hc24b8b70;
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43: tmp_K = 32'hc76c51a3;
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44: tmp_K = 32'hd192e819;
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45: tmp_K = 32'hd6990624;
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46: tmp_K = 32'hf40e3585;
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47: tmp_K = 32'h106aa070;
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48: tmp_K = 32'h19a4c116;
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49: tmp_K = 32'h1e376c08;
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50: tmp_K = 32'h2748774c;
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51: tmp_K = 32'h34b0bcb5;
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52: tmp_K = 32'h391c0cb3;
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53: tmp_K = 32'h4ed8aa4a;
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54: tmp_K = 32'h5b9cca4f;
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55: tmp_K = 32'h682e6ff3;
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56: tmp_K = 32'h748f82ee;
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57: tmp_K = 32'h78a5636f;
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58: tmp_K = 32'h84c87814;
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59: tmp_K = 32'h8cc70208;
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60: tmp_K = 32'h90befffa;
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61: tmp_K = 32'ha4506ceb;
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62: tmp_K = 32'hbef9a3f7;
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63: tmp_K = 32'hc67178f2;
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endcase // case (round)
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end // block: round_mux
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endmodule // sha256_k_constants
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`default_nettype wire
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//======================================================================
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// sha256_k_constants.v
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//======================================================================
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