riscv
/
OpenFPGA
mirror of https://github.com/lnis-uofu/OpenFPGA.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
OpenFPGA/openfpga_flow/benchmarks/vtr_benchmark/sha.v

2172 lines
37 KiB
Verilog
Executable File
Raw Blame History

/////////////////////////////////////////////////////////////////////
//// ////
//// SHA-160 ////
//// Secure Hash Algorithm (SHA-160) ////
//// ////
//// Author: marsgod ////
//// marsgod@opencores.org ////
//// ////
//// ////
//// Downloaded from: http://www.opencores.org/cores/sha_core/ ////
//// ////
/////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2002-2004 marsgod ////
//// marsgod@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 SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY ////
//// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED ////
//// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS ////
//// FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR ////
//// 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. ////
//// ////
/////////////////////////////////////////////////////////////////////
`define SHA1_H0 32'h67452301
`define SHA1_H1 32'hefcdab89
`define SHA1_H2 32'h98badcfe
`define SHA1_H3 32'h10325476
`define SHA1_H4 32'hc3d2e1f0
`define SHA1_K0 32'h5a827999
`define SHA1_K1 32'h6ed9eba1
`define SHA1_K2 32'h8f1bbcdc
`define SHA1_K3 32'hca62c1d6
module sha1 (clk_i, rst_i, text_i, text_o, cmd_i, cmd_w_i, cmd_o);
input clk_i; // global clock input
input rst_i; // global reset input , active high
input [31:0] text_i; // text input 32bit
output [31:0] text_o; // text output 32bit
input [2:0] cmd_i; // command input
input cmd_w_i;// command input write enable
output [3:0] cmd_o; // command output(status)
/*
cmd
Busy Round W R
bit3 bit2 bit1 bit0
Busy Round W R
Busy:
0 idle
1 busy
Round:
0 first round
1 internal round
W:
0 No-op
1 write data
R:
0 No-op
1 read data
*/
reg [3:0] cmd;
wire [3:0] cmd_o;
reg [31:0] text_o;
reg [6:0] round;
wire [6:0] round_plus_1;
reg [2:0] read_counter;
reg [31:0] H0,H1,H2,H3,H4;
reg [31:0] W0,W1,W2,W3,W4,W5,W6,W7,W8,W9,W10,W11,W12,W13,W14;
reg [31:0] Wt,Kt;
reg [31:0] A,B,C,D,E;
reg busy;
assign cmd_o = cmd;
always @ (posedge clk_i)
begin
if (rst_i)
cmd <= 4'b0000;
else
if (cmd_w_i)
cmd[2:0] <= cmd_i[2:0]; // busy bit can't write
else
begin
cmd[3] <= busy; // update busy bit
if (~busy)
cmd[1:0] <= 2'b00; // hardware auto clean R/W bits
end
end
// Hash functions
wire [31:0] SHA1_f1_BCD,SHA1_f2_BCD,SHA1_f3_BCD,SHA1_Wt_1;
wire [31:0] SHA1_ft_BCD;
wire [31:0] next_Wt,next_A,next_C;
wire [159:0] SHA1_result;
assign SHA1_f1_BCD = (B & C) ^ (~B & D);
assign SHA1_f2_BCD = B ^ C ^ D;
assign SHA1_f3_BCD = (B & C) ^ (C & D) ^ (B & D);
assign SHA1_ft_BCD = (round < 7'b0100101) ? SHA1_f1_BCD : (round < 7'b101001) ? SHA1_f2_BCD : (round < 7'b1111101) ? SHA1_f3_BCD : SHA1_f2_BCD;
// Odin II doesn't support binary operations inside concatenations presently.
//assign SHA1_Wt_1 = {W13 ^ W8 ^ W2 ^ W0};
assign SHA1_Wt_1 = W13 ^ W8 ^ W2 ^ W0;
assign next_Wt = {SHA1_Wt_1[30:0],SHA1_Wt_1[31]}; // NSA fix added
assign next_A = {A[26:0],A[31:27]} + SHA1_ft_BCD + E + Kt + Wt;
assign next_C = {B[1:0],B[31:2]};
assign SHA1_result = {A,B,C,D,E};
assign round_plus_1 = round + 1;
//------------------------------------------------------------------
// SHA round
//------------------------------------------------------------------
always @(posedge clk_i)
begin
if (rst_i)
begin
round <= 7'b0000000;
busy <= 1'b0;
W0 <= 32'b00000000000000000000000000000000;
W1 <= 32'b00000000000000000000000000000000;
W2 <= 32'b00000000000000000000000000000000;
W3 <= 32'b00000000000000000000000000000000;
W4 <= 32'b00000000000000000000000000000000;
W5 <= 32'b00000000000000000000000000000000;
W6 <= 32'b00000000000000000000000000000000;
W7 <= 32'b00000000000000000000000000000000;
W8 <= 32'b00000000000000000000000000000000;
W9 <= 32'b00000000000000000000000000000000;
W10 <= 32'b00000000000000000000000000000000;
W11 <= 32'b00000000000000000000000000000000;
W12 <= 32'b00000000000000000000000000000000;
W13 <= 32'b00000000000000000000000000000000;
W14 <= 32'b00000000000000000000000000000000;
Wt <= 32'b00000000000000000000000000000000;
A <= 32'b00000000000000000000000000000000;
B <= 32'b00000000000000000000000000000000;
C <= 32'b00000000000000000000000000000000;
D <= 32'b00000000000000000000000000000000;
E <= 32'b00000000000000000000000000000000;
H0 <= 32'b00000000000000000000000000000000;
H1 <= 32'b00000000000000000000000000000000;
H2 <= 32'b00000000000000000000000000000000;
H3 <= 32'b00000000000000000000000000000000;
H4 <= 32'b00000000000000000000000000000000;
end
else
begin
case (round)
7'b0000000:
begin
if (cmd[1])
begin
W0 <= text_i;
Wt <= text_i;
busy <= 1'b1;
round <= round_plus_1;
case (cmd[2])
1'b0: // sha-1 first message
begin
A <= `SHA1_H0;
B <= `SHA1_H1;
C <= `SHA1_H2;
D <= `SHA1_H3;
E <= `SHA1_H4;
H0 <= `SHA1_H0;
H1 <= `SHA1_H1;
H2 <= `SHA1_H2;
H3 <= `SHA1_H3;
H4 <= `SHA1_H4;
end
1'b1: // sha-1 internal message
begin
H0 <= A;
H1 <= B;
H2 <= C;
H3 <= D;
H4 <= E;
end
endcase
end
else
begin // IDLE
round <= 7'b0000000;
end
end
7'b0000001:
begin
W1 <= text_i;
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0000010:
begin
W2 <= text_i;
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0000011:
begin
W3 <= text_i;
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0000100:
begin
W4 <= text_i;
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0000101:
begin
W5 <= text_i;
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0000110:
begin
W6 <= text_i;
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0000111:
begin
W7 <= text_i;
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0001000:
begin
W8 <= text_i;
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0001001:
begin
W9 <= text_i;
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0001010:
begin
W10 <= text_i;
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0001011:
begin
W11 <= text_i;
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0001100:
begin
W12 <= text_i;
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0001101:
begin
W13 <= text_i;
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0001110:
begin
W14 <= text_i;
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0001111:
begin
Wt <= text_i;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0010000:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0010001:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0010010:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0010011:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0010100:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0010101:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0010110:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0010111:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0011000:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0011001:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0011010:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0011011:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0011100:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0011101:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0011110:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0011111:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0100000:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0100001:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0100010:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0100011:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0100100:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0100101:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0100110:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0100111:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0101000:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0101001:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0101010:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0101011:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0101100:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0101101:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0101110:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0101111:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0110000:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0110001:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0110010:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0110011:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0110100:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0110101:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0110110:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0110111:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0111000:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0111001:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0111010:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0111011:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0111100:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0111101:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0111110:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b0111111:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1000000:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1000001:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1000010:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1000011:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1000100:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1000101:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1000110:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1000111:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1001000:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1001001:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1001010:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1001011:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1001100:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1001101:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1001110:begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1001111:
begin
W0 <= W1;
W1 <= W2;
W2 <= W3;
W3 <= W4;
W4 <= W5;
W5 <= W6;
W6 <= W7;
W7 <= W8;
W8 <= W9;
W9 <= W10;
W10 <= W11;
W11 <= W12;
W12 <= W13;
W13 <= W14;
W14 <= Wt;
Wt <= next_Wt;
E <= D;
D <= C;
C <= next_C;
B <= A;
A <= next_A;
round <= round_plus_1;
end
7'b1010000:
begin
A <= next_A + H0;
B <= A + H1;
C <= next_C + H2;
D <= C + H3;
E <= D + H4;
round <= 7'b0000000;
busy <= 1'b0;
end
default:
begin
round <= 7'b0000000;
busy <= 1'b0;
end
endcase
end
end
//------------------------------------------------------------------
// Kt generator
//------------------------------------------------------------------
always @ (posedge clk_i)
begin
if (rst_i)
begin
Kt <= 32'b00000000000000000000000000000000;
end
else
begin
if (round < 7'b0100000)
Kt <= `SHA1_K0;
else
if (round < 7'b1010000)
Kt <= `SHA1_K1;
else
if (round < 7'b1111100)
Kt <= `SHA1_K2;
else
Kt <= `SHA1_K3;
end
end
//------------------------------------------------------------------
// read result
//------------------------------------------------------------------
always @ (posedge clk_i)
begin
if (rst_i)
begin
text_o <= 32'b00000000000000000000000000000000;
read_counter <= 3'b000;
end
else
begin
if (cmd[0])
begin
read_counter <= 3'b100; // sha-1 160/32=5
end
else
begin
if (~busy)
begin
case (read_counter)
3'b100: text_o <= SHA1_result[5*32-1:4*32];
3'b011: text_o <= SHA1_result[4*32-1:3*32];
3'b010: text_o <= SHA1_result[3*32-1:2*32];
3'b001: text_o <= SHA1_result[2*32-1:1*32];
3'b000: text_o <= SHA1_result[1*32-1:0*32];
default:text_o <= 3'b000;
endcase
if (|read_counter)
read_counter <= read_counter - 7'b0000001;
end
else
begin
text_o <= 32'b00000000000000000000000000000000;
end
end
end
end
endmodule
Reference in New Issue View Git Blame Copy Permalink