Subversion Repositories xtea

/trunk/decipher.v File deleted \ No newline at end of file

trunk/decipher.v Property changes : Deleted: svn:executable ## -1 +0,0 ## -* \ No newline at end of property Index: trunk/encipher.v =================================================================== --- trunk/encipher.v (revision 3) +++ trunk/encipher.v (nonexistent) @@ -1,106 +0,0 @@ -module encipher(clock, reset, data_in1, data_in2, key_in, data_out1, data_out2, all_done); - -parameter s0 = 4'd0, s1 = 4'd1, s2 = 4'd2, s3 = 4'd3, s4 = 4'd4, s5 = 4'd5, s6 = 4'd6, s7 = 4'd7, s8 = 4'd8, s9 = 4'd9, s14 = 4'd14, s15 = 4'd15; - -input clock, reset; -input[31:0] data_in, data_in2; -input[127:0] key_in; -output[31:0] data_out1, data_out2; -output all_done; - -wire clock, reset; -wire[31:0] data_in1, data_in2; -wire[127:0] key_in; - -reg all_done, while_flag; -reg[1:0] selectslice; -reg[3:0] state; -reg[7:0] x; -reg[31:0] data_out1, data_out2, sum, workunit1, workunit2, delta; - -always @(posedge clock or posedge reset) -begin - if (reset) - state = s0; - else begin - case (state) - s0: state = s1; - s1: state = s2; - s2: state = s15; - s15: state = while_flag ? s3 : s14; - s3: state = s4; - s4: state = s5; - s5: state = s6; - s6: state = s7; - s7: state = s2; - s14: state = s8; - s8: state = s9; - s9: state = s9; - default: state = 4'bxxxx; - endcase - end -end - -always @(posedge clock or posedge reset) -begin - if (reset) begin - data_out1 = 32'h00000000; - data_out2 = 32'h00000000; - x = 8'b00000000; - sum = 32'h00000000; - while_flag = 1'b0; - workunit1 = 32'h00000000; - workunit2 = 32'h00000000; - selectslice = 1'b0; - all_done = 1'b0; - delta = 32'h00000000; - end - else begin - case (state) - s1: begin - workunit1 = data_in1; - workunit2 = data_in2; - sum = 32'h00000000; - delta = 32'h9E3779B9; - end - s2: if (x < 8'd32) while_flag = 1'b1; else while_flag = 1'b0; - s15: begin - //do nothing - end - s3: selectslice = (sum & 32'd3); - s4: case (selectslice) - 2'b00: workunit1 = workunit1 + (((workunit2 << 4 ^ workunit2 >> 5) + workunit2) ^ (sum + key_in[127:96])); - 2'b01: workunit1 = workunit1 + (((workunit2 << 4 ^ workunit2 >> 5) + workunit2) ^ (sum + key_in[95:64])); - 2'b10: workunit1 = workunit1 + (((workunit2 << 4 ^ workunit2 >> 5) + workunit2) ^ (sum + key_in[63:32])); - 2'b11: workunit1 = workunit1 + (((workunit2 << 4 ^ workunit2 >> 5) + workunit2) ^ (sum + key_in[31:0])); - default: workunit1 = 32'bzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz; - endcase - s5: sum = sum + delta; - s6: selectslice = (sum >> 32'd11 & 32'd3); - s7: begin - case (selectslice) - 2'b00: workunit2 = workunit2 + (((workunit1 << 4 ^ workunit1 >> 5) + workunit1) ^ (sum + key_in[127:96])); - 2'b01: workunit2 = workunit2 + (((workunit1 << 4 ^ workunit1 >> 5) + workunit1) ^ (sum + key_in[95:64])); - 2'b10: workunit2 = workunit2 + (((workunit1 << 4 ^ workunit1 >> 5) + workunit1) ^ (sum + key_in[63:32])); - 2'b11: workunit2 = workunit2 + (((workunit1 << 4 ^ workunit1 >> 5) + workunit1) ^ (sum + key_in[31:0])); - default: workunit2 = 32'bzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz; - endcase - x = x + 1'b1; - end - s14: begin - //do nothing - end - s8: begin - data_out1 = workunit1; - data_out2 = workunit2; - end - s9: all_done = 1'b1; - default: begin - data_out1 = 32'bzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz; - data_out2 = 32'bzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz; - end - endcase - end -end - -endmodule \ No newline at end of file

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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, write to the //// +//// Free Software Foundation, Inc., 51 Franklin Street, Fifth //// +//// Floor, Boston, MA 02110-1301 USA //// +//// //// +////////////////////////////////////////////////////////////////////// +// +// CVS Revision History +// +// $Log: not supported by cvs2svn $ +// + module cipher_testbench (clock, reset, all_done_encipher, all_done_decipher, data_out_encipher1, data_out_encipher2, data_out_decipher1, data_out_decipher2, data_in_encipher1, data_in_encipher2, data_in_decipher1, data_in_decipher2, key_out, result, reset_out); input clock, reset, all_done_encipher, all_done_decipher;

/trunk/xtea.v