OpenCores
URL https://opencores.org/ocsvn/des/des/trunk

Subversion Repositories des

Compare Revisions

  • This comparison shows the changes necessary to convert path 
    /des/trunk/rtl/verilog/area_opt
    from Rev 8 to Rev 9
    ↔ Reverse comparison
  •

Rev 8 → Rev 9

/key_sel.v
0,0 → 1,464
/////////////////////////////////////////////////////////////////////
//// ////
//// KEY_SEL_Half ////
//// Select one of 16 sub-keys for round ////
//// ////
//// Author: Rudolf Usselmann ////
//// rudi@asics.ws ////
//// ////
//// Original: Rudolf Usselmann ////
//// ////
//// Modified : 2004/07/10 ////
//// Modified: Sakamoto YASUHIRO ////
//// Modified: for about Half slices decreased ////
//// (XILINX SPARTAN2 Number of SLICEs 546 to 258) ////
//// Web : http://hp.vector.co.jp/authors/VA014069 ////
//// ////
/////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2001 Rudolf Usselmann ////
//// rudi@asics.ws ////
//// ////
//// 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. ////
//// ////
/////////////////////////////////////////////////////////////////////
 
module key_selh(K_sub, K, roundSel, decrypt);
output [1:48] K_sub;
input [55:0] K;
input [3:0] roundSel;
input decrypt;
 
reg [1:48] K_sub;
wire [1:48] K1, K2, K3, K4, K5, K6, K7, K8;
 
//// Modified: for about Half slices decreased
wire [2:0] roundSelH; // ADD Sakamoto
wire decryptH; // ADD Sakamoto
 
assign roundSelH[2:0] = roundSel[3] ? (~roundSel[2:0]) : roundSel[2:0];
assign decryptH = decrypt ^ roundSel[3];
 
always @(K1 or K2 or K3 or K4 or K5 or K6 or K7 or K8 or roundSelH)
case (roundSelH) // synopsys full_case parallel_case
0: K_sub = K1;
1: K_sub = K2;
2: K_sub = K3;
3: K_sub = K4;
4: K_sub = K5;
5: K_sub = K6;
6: K_sub = K7;
7: K_sub = K8;
endcase
 
 
assign K8[1] = decryptH ? K[6] : K[24];
assign K8[2] = decryptH ? K[27] : K[20];
assign K8[3] = decryptH ? K[10] : K[3] ;
assign K8[4] = decryptH ? K[19] : K[12];
assign K8[5] = decryptH ? K[54] : K[47];
assign K8[6] = decryptH ? K[25] : K[18];
assign K8[7] = decryptH ? K[11] : K[4] ;
assign K8[8] = decryptH ? K[47] : K[40];
assign K8[9] = decryptH ? K[13] : K[6] ;
assign K8[10] = decryptH ? K[32] : K[25];
assign K8[11] = decryptH ? K[55] : K[48];
assign K8[12] = decryptH ? K[3] : K[53];
assign K8[13] = decryptH ? K[12] : K[5] ;
assign K8[14] = decryptH ? K[41] : K[34];
assign K8[15] = decryptH ? K[17] : K[10];
assign K8[16] = decryptH ? K[18] : K[11];
assign K8[17] = decryptH ? K[33] : K[26];
assign K8[18] = decryptH ? K[46] : K[39];
assign K8[19] = decryptH ? K[20] : K[13];
assign K8[20] = decryptH ? K[39] : K[32];
assign K8[21] = decryptH ? K[40] : K[33];
assign K8[22] = decryptH ? K[48] : K[41];
assign K8[23] = decryptH ? K[24] : K[17];
assign K8[24] = decryptH ? K[4] : K[54];
assign K8[25] = decryptH ? K[52] : K[45];
assign K8[26] = decryptH ? K[15] : K[8] ;
assign K8[27] = decryptH ? K[9] : K[2] ;
assign K8[28] = decryptH ? K[51] : K[44];
assign K8[29] = decryptH ? K[35] : K[28];
assign K8[30] = decryptH ? K[36] : K[29];
assign K8[31] = decryptH ? K[2] : K[50];
assign K8[32] = decryptH ? K[45] : K[38];
assign K8[33] = decryptH ? K[8] : K[1] ;
assign K8[34] = decryptH ? K[21] : K[14];
assign K8[35] = decryptH ? K[23] : K[16];
assign K8[36] = decryptH ? K[42] : K[35];
assign K8[37] = decryptH ? K[14] : K[7] ;
assign K8[38] = decryptH ? K[49] : K[42];
assign K8[39] = decryptH ? K[38] : K[31];
assign K8[40] = decryptH ? K[43] : K[36];
assign K8[41] = decryptH ? K[30] : K[23];
assign K8[42] = decryptH ? K[22] : K[15];
assign K8[43] = decryptH ? K[28] : K[21];
assign K8[44] = decryptH ? K[0] : K[52];
assign K8[45] = decryptH ? K[1] : K[49];
assign K8[46] = decryptH ? K[44] : K[37];
assign K8[47] = decryptH ? K[50] : K[43];
assign K8[48] = decryptH ? K[16] : K[9] ;
assign K7[1] = decryptH ? K[20] : K[10];
assign K7[2] = decryptH ? K[41] : K[6] ;
assign K7[3] = decryptH ? K[24] : K[46];
assign K7[4] = decryptH ? K[33] : K[55];
assign K7[5] = decryptH ? K[11] : K[33];
assign K7[6] = decryptH ? K[39] : K[4] ;
assign K7[7] = decryptH ? K[25] : K[47];
assign K7[8] = decryptH ? K[4] : K[26];
assign K7[9] = decryptH ? K[27] : K[17];
assign K7[10] = decryptH ? K[46] : K[11];
assign K7[11] = decryptH ? K[12] : K[34];
assign K7[12] = decryptH ? K[17] : K[39];
assign K7[13] = decryptH ? K[26] : K[48];
assign K7[14] = decryptH ? K[55] : K[20];
assign K7[15] = decryptH ? K[6] : K[53];
assign K7[16] = decryptH ? K[32] : K[54];
assign K7[17] = decryptH ? K[47] : K[12];
assign K7[18] = decryptH ? K[3] : K[25];
assign K7[19] = decryptH ? K[34] : K[24];
assign K7[20] = decryptH ? K[53] : K[18];
assign K7[21] = decryptH ? K[54] : K[19];
assign K7[22] = decryptH ? K[5] : K[27];
assign K7[23] = decryptH ? K[13] : K[3] ;
assign K7[24] = decryptH ? K[18] : K[40];
assign K7[25] = decryptH ? K[7] : K[31];
assign K7[26] = decryptH ? K[29] : K[49];
assign K7[27] = decryptH ? K[23] : K[43];
assign K7[28] = decryptH ? K[38] : K[30];
assign K7[29] = decryptH ? K[49] : K[14];
assign K7[30] = decryptH ? K[50] : K[15];
assign K7[31] = decryptH ? K[16] : K[36];
assign K7[32] = decryptH ? K[0] : K[51];
assign K7[33] = decryptH ? K[22] : K[42];
assign K7[34] = decryptH ? K[35] : K[0] ;
assign K7[35] = decryptH ? K[37] : K[2] ;
assign K7[36] = decryptH ? K[1] : K[21];
assign K7[37] = decryptH ? K[28] : K[52];
assign K7[38] = decryptH ? K[8] : K[28];
assign K7[39] = decryptH ? K[52] : K[44];
assign K7[40] = decryptH ? K[2] : K[22];
assign K7[41] = decryptH ? K[44] : K[9] ;
assign K7[42] = decryptH ? K[36] : K[1] ;
assign K7[43] = decryptH ? K[42] : K[7] ;
assign K7[44] = decryptH ? K[14] : K[38];
assign K7[45] = decryptH ? K[15] : K[35];
assign K7[46] = decryptH ? K[31] : K[23];
assign K7[47] = decryptH ? K[9] : K[29];
assign K7[48] = decryptH ? K[30] : K[50];
 
assign K6[1] = decryptH ? K[34] : K[53];
assign K6[2] = decryptH ? K[55] : K[17];
assign K6[3] = decryptH ? K[13] : K[32];
assign K6[4] = decryptH ? K[47] : K[41];
assign K6[5] = decryptH ? K[25] : K[19];
assign K6[6] = decryptH ? K[53] : K[47];
assign K6[7] = decryptH ? K[39] : K[33];
assign K6[8] = decryptH ? K[18] : K[12];
assign K6[9] = decryptH ? K[41] : K[3] ;
assign K6[10] = decryptH ? K[3] : K[54];
assign K6[11] = decryptH ? K[26] : K[20];
assign K6[12] = decryptH ? K[6] : K[25];
assign K6[13] = decryptH ? K[40] : K[34];
assign K6[14] = decryptH ? K[12] : K[6] ;
assign K6[15] = decryptH ? K[20] : K[39];
assign K6[16] = decryptH ? K[46] : K[40];
assign K6[17] = decryptH ? K[4] : K[55];
assign K6[18] = decryptH ? K[17] : K[11];
assign K6[19] = decryptH ? K[48] : K[10];
assign K6[20] = decryptH ? K[10] : K[4] ;
assign K6[21] = decryptH ? K[11] : K[5] ;
assign K6[22] = decryptH ? K[19] : K[13];
assign K6[23] = decryptH ? K[27] : K[46];
assign K6[24] = decryptH ? K[32] : K[26];
assign K6[25] = decryptH ? K[21] : K[44];
assign K6[26] = decryptH ? K[43] : K[35];
assign K6[27] = decryptH ? K[37] : K[29];
assign K6[28] = decryptH ? K[52] : K[16];
assign K6[29] = decryptH ? K[8] : K[0] ;
assign K6[30] = decryptH ? K[9] : K[1] ;
assign K6[31] = decryptH ? K[30] : K[22];
assign K6[32] = decryptH ? K[14] : K[37];
assign K6[33] = decryptH ? K[36] : K[28];
assign K6[34] = decryptH ? K[49] : K[45];
assign K6[35] = decryptH ? K[51] : K[43];
assign K6[36] = decryptH ? K[15] : K[7] ;
assign K6[37] = decryptH ? K[42] : K[38];
assign K6[38] = decryptH ? K[22] : K[14];
assign K6[39] = decryptH ? K[7] : K[30];
assign K6[40] = decryptH ? K[16] : K[8] ;
assign K6[41] = decryptH ? K[31] : K[50];
assign K6[42] = decryptH ? K[50] : K[42];
assign K6[43] = decryptH ? K[1] : K[52];
assign K6[44] = decryptH ? K[28] : K[51];
assign K6[45] = decryptH ? K[29] : K[21];
assign K6[46] = decryptH ? K[45] : K[9] ;
assign K6[47] = decryptH ? K[23] : K[15];
assign K6[48] = decryptH ? K[44] : K[36];
 
assign K5[1] = decryptH ? K[48] : K[39];
assign K5[2] = decryptH ? K[12] : K[3] ;
assign K5[3] = decryptH ? K[27] : K[18];
assign K5[4] = decryptH ? K[4] : K[27];
assign K5[5] = decryptH ? K[39] : K[5] ;
assign K5[6] = decryptH ? K[10] : K[33];
assign K5[7] = decryptH ? K[53] : K[19];
assign K5[8] = decryptH ? K[32] : K[55];
assign K5[9] = decryptH ? K[55] : K[46];
assign K5[10] = decryptH ? K[17] : K[40];
assign K5[11] = decryptH ? K[40] : K[6] ;
assign K5[12] = decryptH ? K[20] : K[11];
assign K5[13] = decryptH ? K[54] : K[20];
assign K5[14] = decryptH ? K[26] : K[17];
assign K5[15] = decryptH ? K[34] : K[25];
assign K5[16] = decryptH ? K[3] : K[26];
assign K5[17] = decryptH ? K[18] : K[41];
assign K5[18] = decryptH ? K[6] : K[54];
assign K5[19] = decryptH ? K[5] : K[53];
assign K5[20] = decryptH ? K[24] : K[47];
assign K5[21] = decryptH ? K[25] : K[48];
assign K5[22] = decryptH ? K[33] : K[24];
assign K5[23] = decryptH ? K[41] : K[32];
assign K5[24] = decryptH ? K[46] : K[12];
assign K5[25] = decryptH ? K[35] : K[30];
assign K5[26] = decryptH ? K[2] : K[21];
assign K5[27] = decryptH ? K[51] : K[15];
assign K5[28] = decryptH ? K[7] : K[2] ;
assign K5[29] = decryptH ? K[22] : K[45];
assign K5[30] = decryptH ? K[23] : K[42];
assign K5[31] = decryptH ? K[44] : K[8] ;
assign K5[32] = decryptH ? K[28] : K[23];
assign K5[33] = decryptH ? K[50] : K[14];
assign K5[34] = decryptH ? K[8] : K[31];
assign K5[35] = decryptH ? K[38] : K[29];
assign K5[36] = decryptH ? K[29] : K[52];
assign K5[37] = decryptH ? K[1] : K[51];
assign K5[38] = decryptH ? K[36] : K[0] ;
assign K5[39] = decryptH ? K[21] : K[16];
assign K5[40] = decryptH ? K[30] : K[49];
assign K5[41] = decryptH ? K[45] : K[36];
assign K5[42] = decryptH ? K[9] : K[28];
assign K5[43] = decryptH ? K[15] : K[38];
assign K5[44] = decryptH ? K[42] : K[37];
assign K5[45] = decryptH ? K[43] : K[7] ;
assign K5[46] = decryptH ? K[0] : K[50];
assign K5[47] = decryptH ? K[37] : K[1] ;
assign K5[48] = decryptH ? K[31] : K[22];
 
assign K4[1] = decryptH ? K[5] : K[25];
assign K4[2] = decryptH ? K[26] : K[46];
assign K4[3] = decryptH ? K[41] : K[4] ;
assign K4[4] = decryptH ? K[18] : K[13];
assign K4[5] = decryptH ? K[53] : K[48];
assign K4[6] = decryptH ? K[24] : K[19];
assign K4[7] = decryptH ? K[10] : K[5] ;
assign K4[8] = decryptH ? K[46] : K[41];
assign K4[9] = decryptH ? K[12] : K[32];
assign K4[10] = decryptH ? K[6] : K[26];
assign K4[11] = decryptH ? K[54] : K[17];
assign K4[12] = decryptH ? K[34] : K[54];
assign K4[13] = decryptH ? K[11] : K[6] ;
assign K4[14] = decryptH ? K[40] : K[3] ;
assign K4[15] = decryptH ? K[48] : K[11];
assign K4[16] = decryptH ? K[17] : K[12];
assign K4[17] = decryptH ? K[32] : K[27];
assign K4[18] = decryptH ? K[20] : K[40];
assign K4[19] = decryptH ? K[19] : K[39];
assign K4[20] = decryptH ? K[13] : K[33];
assign K4[21] = decryptH ? K[39] : K[34];
assign K4[22] = decryptH ? K[47] : K[10];
assign K4[23] = decryptH ? K[55] : K[18];
assign K4[24] = decryptH ? K[3] : K[55];
assign K4[25] = decryptH ? K[49] : K[16];
assign K4[26] = decryptH ? K[16] : K[7] ;
assign K4[27] = decryptH ? K[38] : K[1] ;
assign K4[28] = decryptH ? K[21] : K[43];
assign K4[29] = decryptH ? K[36] : K[31];
assign K4[30] = decryptH ? K[37] : K[28];
assign K4[31] = decryptH ? K[31] : K[49];
assign K4[32] = decryptH ? K[42] : K[9] ;
assign K4[33] = decryptH ? K[9] : K[0] ;
assign K4[34] = decryptH ? K[22] : K[44];
assign K4[35] = decryptH ? K[52] : K[15];
assign K4[36] = decryptH ? K[43] : K[38];
assign K4[37] = decryptH ? K[15] : K[37];
assign K4[38] = decryptH ? K[50] : K[45];
assign K4[39] = decryptH ? K[35] : K[2] ;
assign K4[40] = decryptH ? K[44] : K[35];
assign K4[41] = decryptH ? K[0] : K[22];
assign K4[42] = decryptH ? K[23] : K[14];
assign K4[43] = decryptH ? K[29] : K[51];
assign K4[44] = decryptH ? K[1] : K[23];
assign K4[45] = decryptH ? K[2] : K[52];
assign K4[46] = decryptH ? K[14] : K[36];
assign K4[47] = decryptH ? K[51] : K[42];
assign K4[48] = decryptH ? K[45] : K[8] ;
 
assign K3[1] = decryptH ? K[19] : K[11];
assign K3[2] = decryptH ? K[40] : K[32];
assign K3[3] = decryptH ? K[55] : K[47];
assign K3[4] = decryptH ? K[32] : K[24];
assign K3[5] = decryptH ? K[10] : K[34];
assign K3[6] = decryptH ? K[13] : K[5] ;
assign K3[7] = decryptH ? K[24] : K[48];
assign K3[8] = decryptH ? K[3] : K[27];
assign K3[9] = decryptH ? K[26] : K[18];
assign K3[10] = decryptH ? K[20] : K[12];
assign K3[11] = decryptH ? K[11] : K[3] ;
assign K3[12] = decryptH ? K[48] : K[40];
assign K3[13] = decryptH ? K[25] : K[17];
assign K3[14] = decryptH ? K[54] : K[46];
assign K3[15] = decryptH ? K[5] : K[54];
assign K3[16] = decryptH ? K[6] : K[55];
assign K3[17] = decryptH ? K[46] : K[13];
assign K3[18] = decryptH ? K[34] : K[26];
assign K3[19] = decryptH ? K[33] : K[25];
assign K3[20] = decryptH ? K[27] : K[19];
assign K3[21] = decryptH ? K[53] : K[20];
assign K3[22] = decryptH ? K[4] : K[53];
assign K3[23] = decryptH ? K[12] : K[4] ;
assign K3[24] = decryptH ? K[17] : K[41];
assign K3[25] = decryptH ? K[8] : K[2] ;
assign K3[26] = decryptH ? K[30] : K[52];
assign K3[27] = decryptH ? K[52] : K[42];
assign K3[28] = decryptH ? K[35] : K[29];
assign K3[29] = decryptH ? K[50] : K[44];
assign K3[30] = decryptH ? K[51] : K[14];
assign K3[31] = decryptH ? K[45] : K[35];
assign K3[32] = decryptH ? K[1] : K[50];
assign K3[33] = decryptH ? K[23] : K[45];
assign K3[34] = decryptH ? K[36] : K[30];
assign K3[35] = decryptH ? K[7] : K[1] ;
assign K3[36] = decryptH ? K[2] : K[51];
assign K3[37] = decryptH ? K[29] : K[23];
assign K3[38] = decryptH ? K[9] : K[31];
assign K3[39] = decryptH ? K[49] : K[43];
assign K3[40] = decryptH ? K[31] : K[21];
assign K3[41] = decryptH ? K[14] : K[8] ;
assign K3[42] = decryptH ? K[37] : K[0] ;
assign K3[43] = decryptH ? K[43] : K[37];
assign K3[44] = decryptH ? K[15] : K[9] ;
assign K3[45] = decryptH ? K[16] : K[38];
assign K3[46] = decryptH ? K[28] : K[22];
assign K3[47] = decryptH ? K[38] : K[28];
assign K3[48] = decryptH ? K[0] : K[49];
 
assign K2[1] = decryptH ? K[33] : K[54];
assign K2[2] = decryptH ? K[54] : K[18];
assign K2[3] = decryptH ? K[12] : K[33];
assign K2[4] = decryptH ? K[46] : K[10];
assign K2[5] = decryptH ? K[24] : K[20];
assign K2[6] = decryptH ? K[27] : K[48];
assign K2[7] = decryptH ? K[13] : K[34];
assign K2[8] = decryptH ? K[17] : K[13];
assign K2[9] = decryptH ? K[40] : K[4] ;
assign K2[10] = decryptH ? K[34] : K[55];
assign K2[11] = decryptH ? K[25] : K[46];
assign K2[12] = decryptH ? K[5] : K[26];
assign K2[13] = decryptH ? K[39] : K[3] ;
assign K2[14] = decryptH ? K[11] : K[32];
assign K2[15] = decryptH ? K[19] : K[40];
assign K2[16] = decryptH ? K[20] : K[41];
assign K2[17] = decryptH ? K[3] : K[24];
assign K2[18] = decryptH ? K[48] : K[12];
assign K2[19] = decryptH ? K[47] : K[11];
assign K2[20] = decryptH ? K[41] : K[5] ;
assign K2[21] = decryptH ? K[10] : K[6] ;
assign K2[22] = decryptH ? K[18] : K[39];
assign K2[23] = decryptH ? K[26] : K[47];
assign K2[24] = decryptH ? K[6] : K[27];
assign K2[25] = decryptH ? K[22] : K[43];
assign K2[26] = decryptH ? K[44] : K[38];
assign K2[27] = decryptH ? K[7] : K[28];
assign K2[28] = decryptH ? K[49] : K[15];
assign K2[29] = decryptH ? K[9] : K[30];
assign K2[30] = decryptH ? K[38] : K[0] ;
assign K2[31] = decryptH ? K[0] : K[21];
assign K2[32] = decryptH ? K[15] : K[36];
assign K2[33] = decryptH ? K[37] : K[31];
assign K2[34] = decryptH ? K[50] : K[16];
assign K2[35] = decryptH ? K[21] : K[42];
assign K2[36] = decryptH ? K[16] : K[37];
assign K2[37] = decryptH ? K[43] : K[9] ;
assign K2[38] = decryptH ? K[23] : K[44];
assign K2[39] = decryptH ? K[8] : K[29];
assign K2[40] = decryptH ? K[45] : K[7] ;
assign K2[41] = decryptH ? K[28] : K[49];
assign K2[42] = decryptH ? K[51] : K[45];
assign K2[43] = decryptH ? K[2] : K[23];
assign K2[44] = decryptH ? K[29] : K[50];
assign K2[45] = decryptH ? K[30] : K[51];
assign K2[46] = decryptH ? K[42] : K[8] ;
assign K2[47] = decryptH ? K[52] : K[14];
assign K2[48] = decryptH ? K[14] : K[35];
 
assign K1[1] = decryptH ? K[40] : K[47];
assign K1[2] = decryptH ? K[4] : K[11];
assign K1[3] = decryptH ? K[19] : K[26];
assign K1[4] = decryptH ? K[53] : K[3] ;
assign K1[5] = decryptH ? K[6] : K[13];
assign K1[6] = decryptH ? K[34] : K[41];
assign K1[7] = decryptH ? K[20] : K[27];
assign K1[8] = decryptH ? K[24] : K[6] ;
assign K1[9] = decryptH ? K[47] : K[54];
assign K1[10] = decryptH ? K[41] : K[48];
assign K1[11] = decryptH ? K[32] : K[39];
assign K1[12] = decryptH ? K[12] : K[19];
assign K1[13] = decryptH ? K[46] : K[53];
assign K1[14] = decryptH ? K[18] : K[25];
assign K1[15] = decryptH ? K[26] : K[33];
assign K1[16] = decryptH ? K[27] : K[34];
assign K1[17] = decryptH ? K[10] : K[17];
assign K1[18] = decryptH ? K[55] : K[5] ;
assign K1[19] = decryptH ? K[54] : K[4] ;
assign K1[20] = decryptH ? K[48] : K[55];
assign K1[21] = decryptH ? K[17] : K[24];
assign K1[22] = decryptH ? K[25] : K[32];
assign K1[23] = decryptH ? K[33] : K[40];
assign K1[24] = decryptH ? K[13] : K[20];
assign K1[25] = decryptH ? K[29] : K[36];
assign K1[26] = decryptH ? K[51] : K[31];
assign K1[27] = decryptH ? K[14] : K[21];
assign K1[28] = decryptH ? K[1] : K[8] ;
assign K1[29] = decryptH ? K[16] : K[23];
assign K1[30] = decryptH ? K[45] : K[52];
assign K1[31] = decryptH ? K[7] : K[14];
assign K1[32] = decryptH ? K[22] : K[29];
assign K1[33] = decryptH ? K[44] : K[51];
assign K1[34] = decryptH ? K[2] : K[9] ;
assign K1[35] = decryptH ? K[28] : K[35];
assign K1[36] = decryptH ? K[23] : K[30];
assign K1[37] = decryptH ? K[50] : K[2] ;
assign K1[38] = decryptH ? K[30] : K[37];
assign K1[39] = decryptH ? K[15] : K[22];
assign K1[40] = decryptH ? K[52] : K[0] ;
assign K1[41] = decryptH ? K[35] : K[42];
assign K1[42] = decryptH ? K[31] : K[38];
assign K1[43] = decryptH ? K[9] : K[16];
assign K1[44] = decryptH ? K[36] : K[43];
assign K1[45] = decryptH ? K[37] : K[44];
assign K1[46] = decryptH ? K[49] : K[1] ;
assign K1[47] = decryptH ? K[0] : K[7] ;
assign K1[48] = decryptH ? K[21] : K[28];
 
endmodule
/des3.v
0,0 → 1,148
/////////////////////////////////////////////////////////////////////
//// ////
//// DES ////
//// DES Top Level module ////
//// ////
//// Author: Rudolf Usselmann ////
//// rudi@asics.ws ////
//// ////
/////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2001 Rudolf Usselmann ////
//// rudi@asics.ws ////
//// ////
//// 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. ////
//// ////
/////////////////////////////////////////////////////////////////////
 
module des3(desOut, desIn, key1, key2, key3, decrypt, roundSel, clk);
output [63:0] desOut;
input [63:0] desIn;
input [55:0] key1;
input [55:0] key2;
input [55:0] key3;
input decrypt;
input [5:0] roundSel;
input clk;
 
wire [1:48] K_sub;
wire [1:64] IP, FP, tmp;
reg [1:64] FP_R;
reg [1:32] L, R;
wire [1:32] Xin;
wire [1:32] Lout;
wire [1:32] Rout;
wire [1:32] out;
 
//assign Lout = (roundSel == 0) ? IP[33:64] : R;
//assign Xin = (roundSel == 0) ? IP[01:32] : L;
 
 
assign Lout = (roundSel == 0) ? IP[33:64] :
( (roundSel == 16) ? FP_R[33:64] :
( (roundSel == 32) ? FP_R[33:64] :
R ));
 
assign Xin = (roundSel == 0) ? IP[01:32] :
( (roundSel == 16) ? FP_R[01:32] :
( (roundSel == 32) ? FP_R[01:32] :
L ));
 
 
 
/*
always @(roundSel or IP or tmp or R or FP)
case(roundSel)
6'h0: Lout = IP[33:64];
6'h10: Lout = FP[33:64];
6'h20: Lout = FP[33:64];
default: Lout = R;
endcase
 
always @(roundSel or IP or tmp or L or FP)
case(roundSel)
6'h0: Xin = IP[01:32];
6'h10: Xin = FP[01:32];
6'h20: Xin = FP[01:32];
default: Xin = L;
endcase
*/
 
always @(posedge clk)
FP_R <= #1 FP;
 
assign Rout = Xin ^ out;
assign FP = { Rout, Lout};
 
crp u0( .P(out), .R(Lout), .K_sub(K_sub) );
 
always @(posedge clk)
L <= #1 Lout;
 
always @(posedge clk)
R <= #1 Rout;
// Select a subkey from key.
key_sel3 u1(
.K_sub( K_sub ),
.key1( key1 ),
.key2( key2 ),
.key3( key3 ),
.roundSel( roundSel ),
.decrypt( decrypt )
);
 
assign tmp[1:64] = { desOut[06], desOut[14], desOut[22], desOut[30], desOut[38], desOut[46],
desOut[54], desOut[62], desOut[04], desOut[12], desOut[20], desOut[28],
desOut[36], desOut[44], desOut[52], desOut[60], desOut[02], desOut[10],
desOut[18], desOut[26], desOut[34], desOut[42], desOut[50], desOut[58],
desOut[00], desOut[08], desOut[16], desOut[24], desOut[32], desOut[40],
desOut[48], desOut[56], desOut[07], desOut[15], desOut[23], desOut[31],
desOut[39], desOut[47], desOut[55], desOut[63], desOut[05], desOut[13],
desOut[21], desOut[29], desOut[37], desOut[45], desOut[53], desOut[61],
desOut[03], desOut[11], desOut[19], desOut[27], desOut[35], desOut[43],
desOut[51], desOut[59], desOut[01], desOut[09], desOut[17], desOut[25],
desOut[33], desOut[41], desOut[49], desOut[57] };
 
// Perform initial permutation
assign IP[1:64] = { desIn[06], desIn[14], desIn[22], desIn[30], desIn[38], desIn[46],
desIn[54], desIn[62], desIn[04], desIn[12], desIn[20], desIn[28],
desIn[36], desIn[44], desIn[52], desIn[60], desIn[02], desIn[10],
desIn[18], desIn[26], desIn[34], desIn[42], desIn[50], desIn[58],
desIn[00], desIn[08], desIn[16], desIn[24], desIn[32], desIn[40],
desIn[48], desIn[56], desIn[07], desIn[15], desIn[23], desIn[31],
desIn[39], desIn[47], desIn[55], desIn[63], desIn[05], desIn[13],
desIn[21], desIn[29], desIn[37], desIn[45], desIn[53], desIn[61],
desIn[03], desIn[11], desIn[19], desIn[27], desIn[35], desIn[43],
desIn[51], desIn[59], desIn[01], desIn[09], desIn[17], desIn[25],
desIn[33], desIn[41], desIn[49], desIn[57] };
 
// Perform final permutation
assign desOut = { FP[40], FP[08], FP[48], FP[16], FP[56], FP[24], FP[64], FP[32],
FP[39], FP[07], FP[47], FP[15], FP[55], FP[23], FP[63], FP[31],
FP[38], FP[06], FP[46], FP[14], FP[54], FP[22], FP[62], FP[30],
FP[37], FP[05], FP[45], FP[13], FP[53], FP[21], FP[61], FP[29],
FP[36], FP[04], FP[44], FP[12], FP[52], FP[20], FP[60], FP[28],
FP[35], FP[03], FP[43], FP[11], FP[51], FP[19], FP[59], FP[27],
FP[34], FP[02], FP[42], FP[10], FP[50], FP[18], FP[58], FP[26],
FP[33], FP[01], FP[41], FP[09], FP[49], FP[17], FP[57], FP[25] };
 
 
endmodule
/key_sel3.v
0,0 → 1,865
/////////////////////////////////////////////////////////////////////
//// ////
//// KEY_SEL ////
//// Select one of 16 sub-keys for round ////
//// ////
//// Author: Rudolf Usselmann ////
//// rudi@asics.ws ////
//// ////
/////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2001 Rudolf Usselmann ////
//// rudi@asics.ws ////
//// ////
//// 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. ////
//// ////
/////////////////////////////////////////////////////////////////////
 
module key_sel3(K_sub, key1, key2, key3, roundSel, decrypt);
output [1:48] K_sub;
input [55:0] key1, key2, key3;
input [5:0] roundSel;
input decrypt;
 
wire decrypt_int;
reg [55:0] K;
reg [1:48] K_sub;
wire [1:48] K1, K2, K3, K4, K5, K6, K7, K8, K9;
wire [1:48] K10, K11, K12, K13, K14, K15, K16;
 
always @(roundSel or decrypt or key1 or key2 or key3)
case ({decrypt, roundSel[5:4]}) // synopsys full_case parallel_case
3'b0_00: K = key1;
3'b0_01: K = key2;
3'b0_10: K = key3;
3'b1_00: K = key3;
3'b1_01: K = key2;
3'b1_10: K = key1;
endcase
 
assign decrypt_int = (roundSel[5:4]==2'h1) ? !decrypt : decrypt;
 
always @(K1 or K2 or K3 or K4 or K5 or K6 or K7 or K8 or K9 or K10
or K11 or K12 or K13 or K14 or K15 or K16 or roundSel)
case(roundSel[3:0]) // synopsys full_case parallel_case
0: K_sub = K1;
1: K_sub = K2;
2: K_sub = K3;
3: K_sub = K4;
4: K_sub = K5;
5: K_sub = K6;
6: K_sub = K7;
7: K_sub = K8;
8: K_sub = K9;
9: K_sub = K10;
10: K_sub = K11;
11: K_sub = K12;
12: K_sub = K13;
13: K_sub = K14;
14: K_sub = K15;
15: K_sub = K16;
endcase
 
 
assign K16[1] = decrypt_int ? K[47] : K[40];
assign K16[2] = decrypt_int ? K[11] : K[4];
assign K16[3] = decrypt_int ? K[26] : K[19];
assign K16[4] = decrypt_int ? K[3] : K[53];
assign K16[5] = decrypt_int ? K[13] : K[6];
assign K16[6] = decrypt_int ? K[41] : K[34];
assign K16[7] = decrypt_int ? K[27] : K[20];
assign K16[8] = decrypt_int ? K[6] : K[24];
assign K16[9] = decrypt_int ? K[54] : K[47];
assign K16[10] = decrypt_int ? K[48] : K[41];
assign K16[11] = decrypt_int ? K[39] : K[32];
assign K16[12] = decrypt_int ? K[19] : K[12];
assign K16[13] = decrypt_int ? K[53] : K[46];
assign K16[14] = decrypt_int ? K[25] : K[18];
assign K16[15] = decrypt_int ? K[33] : K[26];
assign K16[16] = decrypt_int ? K[34] : K[27];
assign K16[17] = decrypt_int ? K[17] : K[10];
assign K16[18] = decrypt_int ? K[5] : K[55];
assign K16[19] = decrypt_int ? K[4] : K[54];
assign K16[20] = decrypt_int ? K[55] : K[48];
assign K16[21] = decrypt_int ? K[24] : K[17];
assign K16[22] = decrypt_int ? K[32] : K[25];
assign K16[23] = decrypt_int ? K[40] : K[33];
assign K16[24] = decrypt_int ? K[20] : K[13];
assign K16[25] = decrypt_int ? K[36] : K[29];
assign K16[26] = decrypt_int ? K[31] : K[51];
assign K16[27] = decrypt_int ? K[21] : K[14];
assign K16[28] = decrypt_int ? K[8] : K[1];
assign K16[29] = decrypt_int ? K[23] : K[16];
assign K16[30] = decrypt_int ? K[52] : K[45];
assign K16[31] = decrypt_int ? K[14] : K[7];
assign K16[32] = decrypt_int ? K[29] : K[22];
assign K16[33] = decrypt_int ? K[51] : K[44];
assign K16[34] = decrypt_int ? K[9] : K[2];
assign K16[35] = decrypt_int ? K[35] : K[28];
assign K16[36] = decrypt_int ? K[30] : K[23];
assign K16[37] = decrypt_int ? K[2] : K[50];
assign K16[38] = decrypt_int ? K[37] : K[30];
assign K16[39] = decrypt_int ? K[22] : K[15];
assign K16[40] = decrypt_int ? K[0] : K[52];
assign K16[41] = decrypt_int ? K[42] : K[35];
assign K16[42] = decrypt_int ? K[38] : K[31];
assign K16[43] = decrypt_int ? K[16] : K[9];
assign K16[44] = decrypt_int ? K[43] : K[36];
assign K16[45] = decrypt_int ? K[44] : K[37];
assign K16[46] = decrypt_int ? K[1] : K[49];
assign K16[47] = decrypt_int ? K[7] : K[0];
assign K16[48] = decrypt_int ? K[28] : K[21];
 
assign K15[1] = decrypt_int ? K[54] : K[33];
assign K15[2] = decrypt_int ? K[18] : K[54];
assign K15[3] = decrypt_int ? K[33] : K[12];
assign K15[4] = decrypt_int ? K[10] : K[46];
assign K15[5] = decrypt_int ? K[20] : K[24];
assign K15[6] = decrypt_int ? K[48] : K[27];
assign K15[7] = decrypt_int ? K[34] : K[13];
assign K15[8] = decrypt_int ? K[13] : K[17];
assign K15[9] = decrypt_int ? K[4] : K[40];
assign K15[10] = decrypt_int ? K[55] : K[34];
assign K15[11] = decrypt_int ? K[46] : K[25];
assign K15[12] = decrypt_int ? K[26] : K[5];
assign K15[13] = decrypt_int ? K[3] : K[39];
assign K15[14] = decrypt_int ? K[32] : K[11];
assign K15[15] = decrypt_int ? K[40] : K[19];
assign K15[16] = decrypt_int ? K[41] : K[20];
assign K15[17] = decrypt_int ? K[24] : K[3];
assign K15[18] = decrypt_int ? K[12] : K[48];
assign K15[19] = decrypt_int ? K[11] : K[47];
assign K15[20] = decrypt_int ? K[5] : K[41];
assign K15[21] = decrypt_int ? K[6] : K[10];
assign K15[22] = decrypt_int ? K[39] : K[18];
assign K15[23] = decrypt_int ? K[47] : K[26];
assign K15[24] = decrypt_int ? K[27] : K[6];
assign K15[25] = decrypt_int ? K[43] : K[22];
assign K15[26] = decrypt_int ? K[38] : K[44];
assign K15[27] = decrypt_int ? K[28] : K[7];
assign K15[28] = decrypt_int ? K[15] : K[49];
assign K15[29] = decrypt_int ? K[30] : K[9];
assign K15[30] = decrypt_int ? K[0] : K[38];
assign K15[31] = decrypt_int ? K[21] : K[0];
assign K15[32] = decrypt_int ? K[36] : K[15];
assign K15[33] = decrypt_int ? K[31] : K[37];
assign K15[34] = decrypt_int ? K[16] : K[50];
assign K15[35] = decrypt_int ? K[42] : K[21];
assign K15[36] = decrypt_int ? K[37] : K[16];
assign K15[37] = decrypt_int ? K[9] : K[43];
assign K15[38] = decrypt_int ? K[44] : K[23];
assign K15[39] = decrypt_int ? K[29] : K[8];
assign K15[40] = decrypt_int ? K[7] : K[45];
assign K15[41] = decrypt_int ? K[49] : K[28];
assign K15[42] = decrypt_int ? K[45] : K[51];
assign K15[43] = decrypt_int ? K[23] : K[2];
assign K15[44] = decrypt_int ? K[50] : K[29];
assign K15[45] = decrypt_int ? K[51] : K[30];
assign K15[46] = decrypt_int ? K[8] : K[42];
assign K15[47] = decrypt_int ? K[14] : K[52];
assign K15[48] = decrypt_int ? K[35] : K[14];
 
assign K14[1] = decrypt_int ? K[11] : K[19];
assign K14[2] = decrypt_int ? K[32] : K[40];
assign K14[3] = decrypt_int ? K[47] : K[55];
assign K14[4] = decrypt_int ? K[24] : K[32];
assign K14[5] = decrypt_int ? K[34] : K[10];
assign K14[6] = decrypt_int ? K[5] : K[13];
assign K14[7] = decrypt_int ? K[48] : K[24];
assign K14[8] = decrypt_int ? K[27] : K[3];
assign K14[9] = decrypt_int ? K[18] : K[26];
assign K14[10] = decrypt_int ? K[12] : K[20];
assign K14[11] = decrypt_int ? K[3] : K[11];
assign K14[12] = decrypt_int ? K[40] : K[48];
assign K14[13] = decrypt_int ? K[17] : K[25];
assign K14[14] = decrypt_int ? K[46] : K[54];
assign K14[15] = decrypt_int ? K[54] : K[5];
assign K14[16] = decrypt_int ? K[55] : K[6];
assign K14[17] = decrypt_int ? K[13] : K[46];
assign K14[18] = decrypt_int ? K[26] : K[34];
assign K14[19] = decrypt_int ? K[25] : K[33];
assign K14[20] = decrypt_int ? K[19] : K[27];
assign K14[21] = decrypt_int ? K[20] : K[53];
assign K14[22] = decrypt_int ? K[53] : K[4];
assign K14[23] = decrypt_int ? K[4] : K[12];
assign K14[24] = decrypt_int ? K[41] : K[17];
assign K14[25] = decrypt_int ? K[2] : K[8];
assign K14[26] = decrypt_int ? K[52] : K[30];
assign K14[27] = decrypt_int ? K[42] : K[52];
assign K14[28] = decrypt_int ? K[29] : K[35];
assign K14[29] = decrypt_int ? K[44] : K[50];
assign K14[30] = decrypt_int ? K[14] : K[51];
assign K14[31] = decrypt_int ? K[35] : K[45];
assign K14[32] = decrypt_int ? K[50] : K[1];
assign K14[33] = decrypt_int ? K[45] : K[23];
assign K14[34] = decrypt_int ? K[30] : K[36];
assign K14[35] = decrypt_int ? K[1] : K[7];
assign K14[36] = decrypt_int ? K[51] : K[2];
assign K14[37] = decrypt_int ? K[23] : K[29];
assign K14[38] = decrypt_int ? K[31] : K[9];
assign K14[39] = decrypt_int ? K[43] : K[49];
assign K14[40] = decrypt_int ? K[21] : K[31];
assign K14[41] = decrypt_int ? K[8] : K[14];
assign K14[42] = decrypt_int ? K[0] : K[37];
assign K14[43] = decrypt_int ? K[37] : K[43];
assign K14[44] = decrypt_int ? K[9] : K[15];
assign K14[45] = decrypt_int ? K[38] : K[16];
assign K14[46] = decrypt_int ? K[22] : K[28];
assign K14[47] = decrypt_int ? K[28] : K[38];
assign K14[48] = decrypt_int ? K[49] : K[0];
 
assign K13[1] = decrypt_int ? K[25] : K[5];
assign K13[2] = decrypt_int ? K[46] : K[26];
assign K13[3] = decrypt_int ? K[4] : K[41];
assign K13[4] = decrypt_int ? K[13] : K[18];
assign K13[5] = decrypt_int ? K[48] : K[53];
assign K13[6] = decrypt_int ? K[19] : K[24];
assign K13[7] = decrypt_int ? K[5] : K[10];
assign K13[8] = decrypt_int ? K[41] : K[46];
assign K13[9] = decrypt_int ? K[32] : K[12];
assign K13[10] = decrypt_int ? K[26] : K[6];
assign K13[11] = decrypt_int ? K[17] : K[54];
assign K13[12] = decrypt_int ? K[54] : K[34];
assign K13[13] = decrypt_int ? K[6] : K[11];
assign K13[14] = decrypt_int ? K[3] : K[40];
assign K13[15] = decrypt_int ? K[11] : K[48];
assign K13[16] = decrypt_int ? K[12] : K[17];
assign K13[17] = decrypt_int ? K[27] : K[32];
assign K13[18] = decrypt_int ? K[40] : K[20];
assign K13[19] = decrypt_int ? K[39] : K[19];
assign K13[20] = decrypt_int ? K[33] : K[13];
assign K13[21] = decrypt_int ? K[34] : K[39];
assign K13[22] = decrypt_int ? K[10] : K[47];
assign K13[23] = decrypt_int ? K[18] : K[55];
assign K13[24] = decrypt_int ? K[55] : K[3];
assign K13[25] = decrypt_int ? K[16] : K[49];
assign K13[26] = decrypt_int ? K[7] : K[16];
assign K13[27] = decrypt_int ? K[1] : K[38];
assign K13[28] = decrypt_int ? K[43] : K[21];
assign K13[29] = decrypt_int ? K[31] : K[36];
assign K13[30] = decrypt_int ? K[28] : K[37];
assign K13[31] = decrypt_int ? K[49] : K[31];
assign K13[32] = decrypt_int ? K[9] : K[42];
assign K13[33] = decrypt_int ? K[0] : K[9];
assign K13[34] = decrypt_int ? K[44] : K[22];
assign K13[35] = decrypt_int ? K[15] : K[52];
assign K13[36] = decrypt_int ? K[38] : K[43];
assign K13[37] = decrypt_int ? K[37] : K[15];
assign K13[38] = decrypt_int ? K[45] : K[50];
assign K13[39] = decrypt_int ? K[2] : K[35];
assign K13[40] = decrypt_int ? K[35] : K[44];
assign K13[41] = decrypt_int ? K[22] : K[0];
assign K13[42] = decrypt_int ? K[14] : K[23];
assign K13[43] = decrypt_int ? K[51] : K[29];
assign K13[44] = decrypt_int ? K[23] : K[1];
assign K13[45] = decrypt_int ? K[52] : K[2];
assign K13[46] = decrypt_int ? K[36] : K[14];
assign K13[47] = decrypt_int ? K[42] : K[51];
assign K13[48] = decrypt_int ? K[8] : K[45];
 
assign K12[1] = decrypt_int ? K[39] : K[48];
assign K12[2] = decrypt_int ? K[3] : K[12];
assign K12[3] = decrypt_int ? K[18] : K[27];
assign K12[4] = decrypt_int ? K[27] : K[4];
assign K12[5] = decrypt_int ? K[5] : K[39];
assign K12[6] = decrypt_int ? K[33] : K[10];
assign K12[7] = decrypt_int ? K[19] : K[53];
assign K12[8] = decrypt_int ? K[55] : K[32];
assign K12[9] = decrypt_int ? K[46] : K[55];
assign K12[10] = decrypt_int ? K[40] : K[17];
assign K12[11] = decrypt_int ? K[6] : K[40];
assign K12[12] = decrypt_int ? K[11] : K[20];
assign K12[13] = decrypt_int ? K[20] : K[54];
assign K12[14] = decrypt_int ? K[17] : K[26];
assign K12[15] = decrypt_int ? K[25] : K[34];
assign K12[16] = decrypt_int ? K[26] : K[3];
assign K12[17] = decrypt_int ? K[41] : K[18];
assign K12[18] = decrypt_int ? K[54] : K[6];
assign K12[19] = decrypt_int ? K[53] : K[5];
assign K12[20] = decrypt_int ? K[47] : K[24];
assign K12[21] = decrypt_int ? K[48] : K[25];
assign K12[22] = decrypt_int ? K[24] : K[33];
assign K12[23] = decrypt_int ? K[32] : K[41];
assign K12[24] = decrypt_int ? K[12] : K[46];
assign K12[25] = decrypt_int ? K[30] : K[35];
assign K12[26] = decrypt_int ? K[21] : K[2];
assign K12[27] = decrypt_int ? K[15] : K[51];
assign K12[28] = decrypt_int ? K[2] : K[7];
assign K12[29] = decrypt_int ? K[45] : K[22];
assign K12[30] = decrypt_int ? K[42] : K[23];
assign K12[31] = decrypt_int ? K[8] : K[44];
assign K12[32] = decrypt_int ? K[23] : K[28];
assign K12[33] = decrypt_int ? K[14] : K[50];
assign K12[34] = decrypt_int ? K[31] : K[8];
assign K12[35] = decrypt_int ? K[29] : K[38];
assign K12[36] = decrypt_int ? K[52] : K[29];
assign K12[37] = decrypt_int ? K[51] : K[1];
assign K12[38] = decrypt_int ? K[0] : K[36];
assign K12[39] = decrypt_int ? K[16] : K[21];
assign K12[40] = decrypt_int ? K[49] : K[30];
assign K12[41] = decrypt_int ? K[36] : K[45];
assign K12[42] = decrypt_int ? K[28] : K[9];
assign K12[43] = decrypt_int ? K[38] : K[15];
assign K12[44] = decrypt_int ? K[37] : K[42];
assign K12[45] = decrypt_int ? K[7] : K[43];
assign K12[46] = decrypt_int ? K[50] : K[0];
assign K12[47] = decrypt_int ? K[1] : K[37];
assign K12[48] = decrypt_int ? K[22] : K[31];
 
assign K11[1] = decrypt_int ? K[53] : K[34];
assign K11[2] = decrypt_int ? K[17] : K[55];
assign K11[3] = decrypt_int ? K[32] : K[13];
assign K11[4] = decrypt_int ? K[41] : K[47];
assign K11[5] = decrypt_int ? K[19] : K[25];
assign K11[6] = decrypt_int ? K[47] : K[53];
assign K11[7] = decrypt_int ? K[33] : K[39];
assign K11[8] = decrypt_int ? K[12] : K[18];
assign K11[9] = decrypt_int ? K[3] : K[41];
assign K11[10] = decrypt_int ? K[54] : K[3];
assign K11[11] = decrypt_int ? K[20] : K[26];
assign K11[12] = decrypt_int ? K[25] : K[6];
assign K11[13] = decrypt_int ? K[34] : K[40];
assign K11[14] = decrypt_int ? K[6] : K[12];
assign K11[15] = decrypt_int ? K[39] : K[20];
assign K11[16] = decrypt_int ? K[40] : K[46];
assign K11[17] = decrypt_int ? K[55] : K[4];
assign K11[18] = decrypt_int ? K[11] : K[17];
assign K11[19] = decrypt_int ? K[10] : K[48];
assign K11[20] = decrypt_int ? K[4] : K[10];
assign K11[21] = decrypt_int ? K[5] : K[11];
assign K11[22] = decrypt_int ? K[13] : K[19];
assign K11[23] = decrypt_int ? K[46] : K[27];
assign K11[24] = decrypt_int ? K[26] : K[32];
assign K11[25] = decrypt_int ? K[44] : K[21];
assign K11[26] = decrypt_int ? K[35] : K[43];
assign K11[27] = decrypt_int ? K[29] : K[37];
assign K11[28] = decrypt_int ? K[16] : K[52];
assign K11[29] = decrypt_int ? K[0] : K[8];
assign K11[30] = decrypt_int ? K[1] : K[9];
assign K11[31] = decrypt_int ? K[22] : K[30];
assign K11[32] = decrypt_int ? K[37] : K[14];
assign K11[33] = decrypt_int ? K[28] : K[36];
assign K11[34] = decrypt_int ? K[45] : K[49];
assign K11[35] = decrypt_int ? K[43] : K[51];
assign K11[36] = decrypt_int ? K[7] : K[15];
assign K11[37] = decrypt_int ? K[38] : K[42];
assign K11[38] = decrypt_int ? K[14] : K[22];
assign K11[39] = decrypt_int ? K[30] : K[7];
assign K11[40] = decrypt_int ? K[8] : K[16];
assign K11[41] = decrypt_int ? K[50] : K[31];
assign K11[42] = decrypt_int ? K[42] : K[50];
assign K11[43] = decrypt_int ? K[52] : K[1];
assign K11[44] = decrypt_int ? K[51] : K[28];
assign K11[45] = decrypt_int ? K[21] : K[29];
assign K11[46] = decrypt_int ? K[9] : K[45];
assign K11[47] = decrypt_int ? K[15] : K[23];
assign K11[48] = decrypt_int ? K[36] : K[44];
 
assign K10[1] = decrypt_int ? K[10] : K[20];
assign K10[2] = decrypt_int ? K[6] : K[41];
assign K10[3] = decrypt_int ? K[46] : K[24];
assign K10[4] = decrypt_int ? K[55] : K[33];
assign K10[5] = decrypt_int ? K[33] : K[11];
assign K10[6] = decrypt_int ? K[4] : K[39];
assign K10[7] = decrypt_int ? K[47] : K[25];
assign K10[8] = decrypt_int ? K[26] : K[4];
assign K10[9] = decrypt_int ? K[17] : K[27];
assign K10[10] = decrypt_int ? K[11] : K[46];
assign K10[11] = decrypt_int ? K[34] : K[12];
assign K10[12] = decrypt_int ? K[39] : K[17];
assign K10[13] = decrypt_int ? K[48] : K[26];
assign K10[14] = decrypt_int ? K[20] : K[55];
assign K10[15] = decrypt_int ? K[53] : K[6];
assign K10[16] = decrypt_int ? K[54] : K[32];
assign K10[17] = decrypt_int ? K[12] : K[47];
assign K10[18] = decrypt_int ? K[25] : K[3];
assign K10[19] = decrypt_int ? K[24] : K[34];
assign K10[20] = decrypt_int ? K[18] : K[53];
assign K10[21] = decrypt_int ? K[19] : K[54];
assign K10[22] = decrypt_int ? K[27] : K[5];
assign K10[23] = decrypt_int ? K[3] : K[13];
assign K10[24] = decrypt_int ? K[40] : K[18];
assign K10[25] = decrypt_int ? K[31] : K[7];
assign K10[26] = decrypt_int ? K[49] : K[29];
assign K10[27] = decrypt_int ? K[43] : K[23];
assign K10[28] = decrypt_int ? K[30] : K[38];
assign K10[29] = decrypt_int ? K[14] : K[49];
assign K10[30] = decrypt_int ? K[15] : K[50];
assign K10[31] = decrypt_int ? K[36] : K[16];
assign K10[32] = decrypt_int ? K[51] : K[0];
assign K10[33] = decrypt_int ? K[42] : K[22];
assign K10[34] = decrypt_int ? K[0] : K[35];
assign K10[35] = decrypt_int ? K[2] : K[37];
assign K10[36] = decrypt_int ? K[21] : K[1];
assign K10[37] = decrypt_int ? K[52] : K[28];
assign K10[38] = decrypt_int ? K[28] : K[8];
assign K10[39] = decrypt_int ? K[44] : K[52];
assign K10[40] = decrypt_int ? K[22] : K[2];
assign K10[41] = decrypt_int ? K[9] : K[44];
assign K10[42] = decrypt_int ? K[1] : K[36];
assign K10[43] = decrypt_int ? K[7] : K[42];
assign K10[44] = decrypt_int ? K[38] : K[14];
assign K10[45] = decrypt_int ? K[35] : K[15];
assign K10[46] = decrypt_int ? K[23] : K[31];
assign K10[47] = decrypt_int ? K[29] : K[9];
assign K10[48] = decrypt_int ? K[50] : K[30];
 
assign K9[1] = decrypt_int ? K[24] : K[6];
assign K9[2] = decrypt_int ? K[20] : K[27];
assign K9[3] = decrypt_int ? K[3] : K[10];
assign K9[4] = decrypt_int ? K[12] : K[19];
assign K9[5] = decrypt_int ? K[47] : K[54];
assign K9[6] = decrypt_int ? K[18] : K[25];
assign K9[7] = decrypt_int ? K[4] : K[11];
assign K9[8] = decrypt_int ? K[40] : K[47];
assign K9[9] = decrypt_int ? K[6] : K[13];
assign K9[10] = decrypt_int ? K[25] : K[32];
assign K9[11] = decrypt_int ? K[48] : K[55];
assign K9[12] = decrypt_int ? K[53] : K[3];
assign K9[13] = decrypt_int ? K[5] : K[12];
assign K9[14] = decrypt_int ? K[34] : K[41];
assign K9[15] = decrypt_int ? K[10] : K[17];
assign K9[16] = decrypt_int ? K[11] : K[18];
assign K9[17] = decrypt_int ? K[26] : K[33];
assign K9[18] = decrypt_int ? K[39] : K[46];
assign K9[19] = decrypt_int ? K[13] : K[20];
assign K9[20] = decrypt_int ? K[32] : K[39];
assign K9[21] = decrypt_int ? K[33] : K[40];
assign K9[22] = decrypt_int ? K[41] : K[48];
assign K9[23] = decrypt_int ? K[17] : K[24];
assign K9[24] = decrypt_int ? K[54] : K[4];
assign K9[25] = decrypt_int ? K[45] : K[52];
assign K9[26] = decrypt_int ? K[8] : K[15];
assign K9[27] = decrypt_int ? K[2] : K[9];
assign K9[28] = decrypt_int ? K[44] : K[51];
assign K9[29] = decrypt_int ? K[28] : K[35];
assign K9[30] = decrypt_int ? K[29] : K[36];
assign K9[31] = decrypt_int ? K[50] : K[2];
assign K9[32] = decrypt_int ? K[38] : K[45];
assign K9[33] = decrypt_int ? K[1] : K[8];
assign K9[34] = decrypt_int ? K[14] : K[21];
assign K9[35] = decrypt_int ? K[16] : K[23];
assign K9[36] = decrypt_int ? K[35] : K[42];
assign K9[37] = decrypt_int ? K[7] : K[14];
assign K9[38] = decrypt_int ? K[42] : K[49];
assign K9[39] = decrypt_int ? K[31] : K[38];
assign K9[40] = decrypt_int ? K[36] : K[43];
assign K9[41] = decrypt_int ? K[23] : K[30];
assign K9[42] = decrypt_int ? K[15] : K[22];
assign K9[43] = decrypt_int ? K[21] : K[28];
assign K9[44] = decrypt_int ? K[52] : K[0];
assign K9[45] = decrypt_int ? K[49] : K[1];
assign K9[46] = decrypt_int ? K[37] : K[44];
assign K9[47] = decrypt_int ? K[43] : K[50];
assign K9[48] = decrypt_int ? K[9] : K[16];
 
assign K8[1] = decrypt_int ? K[6] : K[24];
assign K8[2] = decrypt_int ? K[27] : K[20];
assign K8[3] = decrypt_int ? K[10] : K[3];
assign K8[4] = decrypt_int ? K[19] : K[12];
assign K8[5] = decrypt_int ? K[54] : K[47];
assign K8[6] = decrypt_int ? K[25] : K[18];
assign K8[7] = decrypt_int ? K[11] : K[4];
assign K8[8] = decrypt_int ? K[47] : K[40];
assign K8[9] = decrypt_int ? K[13] : K[6];
assign K8[10] = decrypt_int ? K[32] : K[25];
assign K8[11] = decrypt_int ? K[55] : K[48];
assign K8[12] = decrypt_int ? K[3] : K[53];
assign K8[13] = decrypt_int ? K[12] : K[5];
assign K8[14] = decrypt_int ? K[41] : K[34];
assign K8[15] = decrypt_int ? K[17] : K[10];
assign K8[16] = decrypt_int ? K[18] : K[11];
assign K8[17] = decrypt_int ? K[33] : K[26];
assign K8[18] = decrypt_int ? K[46] : K[39];
assign K8[19] = decrypt_int ? K[20] : K[13];
assign K8[20] = decrypt_int ? K[39] : K[32];
assign K8[21] = decrypt_int ? K[40] : K[33];
assign K8[22] = decrypt_int ? K[48] : K[41];
assign K8[23] = decrypt_int ? K[24] : K[17];
assign K8[24] = decrypt_int ? K[4] : K[54];
assign K8[25] = decrypt_int ? K[52] : K[45];
assign K8[26] = decrypt_int ? K[15] : K[8];
assign K8[27] = decrypt_int ? K[9] : K[2];
assign K8[28] = decrypt_int ? K[51] : K[44];
assign K8[29] = decrypt_int ? K[35] : K[28];
assign K8[30] = decrypt_int ? K[36] : K[29];
assign K8[31] = decrypt_int ? K[2] : K[50];
assign K8[32] = decrypt_int ? K[45] : K[38];
assign K8[33] = decrypt_int ? K[8] : K[1];
assign K8[34] = decrypt_int ? K[21] : K[14];
assign K8[35] = decrypt_int ? K[23] : K[16];
assign K8[36] = decrypt_int ? K[42] : K[35];
assign K8[37] = decrypt_int ? K[14] : K[7];
assign K8[38] = decrypt_int ? K[49] : K[42];
assign K8[39] = decrypt_int ? K[38] : K[31];
assign K8[40] = decrypt_int ? K[43] : K[36];
assign K8[41] = decrypt_int ? K[30] : K[23];
assign K8[42] = decrypt_int ? K[22] : K[15];
assign K8[43] = decrypt_int ? K[28] : K[21];
assign K8[44] = decrypt_int ? K[0] : K[52];
assign K8[45] = decrypt_int ? K[1] : K[49];
assign K8[46] = decrypt_int ? K[44] : K[37];
assign K8[47] = decrypt_int ? K[50] : K[43];
assign K8[48] = decrypt_int ? K[16] : K[9];
assign K7[1] = decrypt_int ? K[20] : K[10];
assign K7[2] = decrypt_int ? K[41] : K[6];
assign K7[3] = decrypt_int ? K[24] : K[46];
assign K7[4] = decrypt_int ? K[33] : K[55];
assign K7[5] = decrypt_int ? K[11] : K[33];
assign K7[6] = decrypt_int ? K[39] : K[4];
assign K7[7] = decrypt_int ? K[25] : K[47];
assign K7[8] = decrypt_int ? K[4] : K[26];
assign K7[9] = decrypt_int ? K[27] : K[17];
assign K7[10] = decrypt_int ? K[46] : K[11];
assign K7[11] = decrypt_int ? K[12] : K[34];
assign K7[12] = decrypt_int ? K[17] : K[39];
assign K7[13] = decrypt_int ? K[26] : K[48];
assign K7[14] = decrypt_int ? K[55] : K[20];
assign K7[15] = decrypt_int ? K[6] : K[53];
assign K7[16] = decrypt_int ? K[32] : K[54];
assign K7[17] = decrypt_int ? K[47] : K[12];
assign K7[18] = decrypt_int ? K[3] : K[25];
assign K7[19] = decrypt_int ? K[34] : K[24];
assign K7[20] = decrypt_int ? K[53] : K[18];
assign K7[21] = decrypt_int ? K[54] : K[19];
assign K7[22] = decrypt_int ? K[5] : K[27];
assign K7[23] = decrypt_int ? K[13] : K[3];
assign K7[24] = decrypt_int ? K[18] : K[40];
assign K7[25] = decrypt_int ? K[7] : K[31];
assign K7[26] = decrypt_int ? K[29] : K[49];
assign K7[27] = decrypt_int ? K[23] : K[43];
assign K7[28] = decrypt_int ? K[38] : K[30];
assign K7[29] = decrypt_int ? K[49] : K[14];
assign K7[30] = decrypt_int ? K[50] : K[15];
assign K7[31] = decrypt_int ? K[16] : K[36];
assign K7[32] = decrypt_int ? K[0] : K[51];
assign K7[33] = decrypt_int ? K[22] : K[42];
assign K7[34] = decrypt_int ? K[35] : K[0];
assign K7[35] = decrypt_int ? K[37] : K[2];
assign K7[36] = decrypt_int ? K[1] : K[21];
assign K7[37] = decrypt_int ? K[28] : K[52];
assign K7[38] = decrypt_int ? K[8] : K[28];
assign K7[39] = decrypt_int ? K[52] : K[44];
assign K7[40] = decrypt_int ? K[2] : K[22];
assign K7[41] = decrypt_int ? K[44] : K[9];
assign K7[42] = decrypt_int ? K[36] : K[1];
assign K7[43] = decrypt_int ? K[42] : K[7];
assign K7[44] = decrypt_int ? K[14] : K[38];
assign K7[45] = decrypt_int ? K[15] : K[35];
assign K7[46] = decrypt_int ? K[31] : K[23];
assign K7[47] = decrypt_int ? K[9] : K[29];
assign K7[48] = decrypt_int ? K[30] : K[50];
 
assign K6[1] = decrypt_int ? K[34] : K[53];
assign K6[2] = decrypt_int ? K[55] : K[17];
assign K6[3] = decrypt_int ? K[13] : K[32];
assign K6[4] = decrypt_int ? K[47] : K[41];
assign K6[5] = decrypt_int ? K[25] : K[19];
assign K6[6] = decrypt_int ? K[53] : K[47];
assign K6[7] = decrypt_int ? K[39] : K[33];
assign K6[8] = decrypt_int ? K[18] : K[12];
assign K6[9] = decrypt_int ? K[41] : K[3];
assign K6[10] = decrypt_int ? K[3] : K[54];
assign K6[11] = decrypt_int ? K[26] : K[20];
assign K6[12] = decrypt_int ? K[6] : K[25];
assign K6[13] = decrypt_int ? K[40] : K[34];
assign K6[14] = decrypt_int ? K[12] : K[6];
assign K6[15] = decrypt_int ? K[20] : K[39];
assign K6[16] = decrypt_int ? K[46] : K[40];
assign K6[17] = decrypt_int ? K[4] : K[55];
assign K6[18] = decrypt_int ? K[17] : K[11];
assign K6[19] = decrypt_int ? K[48] : K[10];
assign K6[20] = decrypt_int ? K[10] : K[4];
assign K6[21] = decrypt_int ? K[11] : K[5];
assign K6[22] = decrypt_int ? K[19] : K[13];
assign K6[23] = decrypt_int ? K[27] : K[46];
assign K6[24] = decrypt_int ? K[32] : K[26];
assign K6[25] = decrypt_int ? K[21] : K[44];
assign K6[26] = decrypt_int ? K[43] : K[35];
assign K6[27] = decrypt_int ? K[37] : K[29];
assign K6[28] = decrypt_int ? K[52] : K[16];
assign K6[29] = decrypt_int ? K[8] : K[0];
assign K6[30] = decrypt_int ? K[9] : K[1];
assign K6[31] = decrypt_int ? K[30] : K[22];
assign K6[32] = decrypt_int ? K[14] : K[37];
assign K6[33] = decrypt_int ? K[36] : K[28];
assign K6[34] = decrypt_int ? K[49] : K[45];
assign K6[35] = decrypt_int ? K[51] : K[43];
assign K6[36] = decrypt_int ? K[15] : K[7];
assign K6[37] = decrypt_int ? K[42] : K[38];
assign K6[38] = decrypt_int ? K[22] : K[14];
assign K6[39] = decrypt_int ? K[7] : K[30];
assign K6[40] = decrypt_int ? K[16] : K[8];
assign K6[41] = decrypt_int ? K[31] : K[50];
assign K6[42] = decrypt_int ? K[50] : K[42];
assign K6[43] = decrypt_int ? K[1] : K[52];
assign K6[44] = decrypt_int ? K[28] : K[51];
assign K6[45] = decrypt_int ? K[29] : K[21];
assign K6[46] = decrypt_int ? K[45] : K[9];
assign K6[47] = decrypt_int ? K[23] : K[15];
assign K6[48] = decrypt_int ? K[44] : K[36];
 
assign K5[1] = decrypt_int ? K[48] : K[39];
assign K5[2] = decrypt_int ? K[12] : K[3];
assign K5[3] = decrypt_int ? K[27] : K[18];
assign K5[4] = decrypt_int ? K[4] : K[27];
assign K5[5] = decrypt_int ? K[39] : K[5];
assign K5[6] = decrypt_int ? K[10] : K[33];
assign K5[7] = decrypt_int ? K[53] : K[19];
assign K5[8] = decrypt_int ? K[32] : K[55];
assign K5[9] = decrypt_int ? K[55] : K[46];
assign K5[10] = decrypt_int ? K[17] : K[40];
assign K5[11] = decrypt_int ? K[40] : K[6];
assign K5[12] = decrypt_int ? K[20] : K[11];
assign K5[13] = decrypt_int ? K[54] : K[20];
assign K5[14] = decrypt_int ? K[26] : K[17];
assign K5[15] = decrypt_int ? K[34] : K[25];
assign K5[16] = decrypt_int ? K[3] : K[26];
assign K5[17] = decrypt_int ? K[18] : K[41];
assign K5[18] = decrypt_int ? K[6] : K[54];
assign K5[19] = decrypt_int ? K[5] : K[53];
assign K5[20] = decrypt_int ? K[24] : K[47];
assign K5[21] = decrypt_int ? K[25] : K[48];
assign K5[22] = decrypt_int ? K[33] : K[24];
assign K5[23] = decrypt_int ? K[41] : K[32];
assign K5[24] = decrypt_int ? K[46] : K[12];
assign K5[25] = decrypt_int ? K[35] : K[30];
assign K5[26] = decrypt_int ? K[2] : K[21];
assign K5[27] = decrypt_int ? K[51] : K[15];
assign K5[28] = decrypt_int ? K[7] : K[2];
assign K5[29] = decrypt_int ? K[22] : K[45];
assign K5[30] = decrypt_int ? K[23] : K[42];
assign K5[31] = decrypt_int ? K[44] : K[8];
assign K5[32] = decrypt_int ? K[28] : K[23];
assign K5[33] = decrypt_int ? K[50] : K[14];
assign K5[34] = decrypt_int ? K[8] : K[31];
assign K5[35] = decrypt_int ? K[38] : K[29];
assign K5[36] = decrypt_int ? K[29] : K[52];
assign K5[37] = decrypt_int ? K[1] : K[51];
assign K5[38] = decrypt_int ? K[36] : K[0];
assign K5[39] = decrypt_int ? K[21] : K[16];
assign K5[40] = decrypt_int ? K[30] : K[49];
assign K5[41] = decrypt_int ? K[45] : K[36];
assign K5[42] = decrypt_int ? K[9] : K[28];
assign K5[43] = decrypt_int ? K[15] : K[38];
assign K5[44] = decrypt_int ? K[42] : K[37];
assign K5[45] = decrypt_int ? K[43] : K[7];
assign K5[46] = decrypt_int ? K[0] : K[50];
assign K5[47] = decrypt_int ? K[37] : K[1];
assign K5[48] = decrypt_int ? K[31] : K[22];
 
assign K4[1] = decrypt_int ? K[5] : K[25];
assign K4[2] = decrypt_int ? K[26] : K[46];
assign K4[3] = decrypt_int ? K[41] : K[4];
assign K4[4] = decrypt_int ? K[18] : K[13];
assign K4[5] = decrypt_int ? K[53] : K[48];
assign K4[6] = decrypt_int ? K[24] : K[19];
assign K4[7] = decrypt_int ? K[10] : K[5];
assign K4[8] = decrypt_int ? K[46] : K[41];
assign K4[9] = decrypt_int ? K[12] : K[32];
assign K4[10] = decrypt_int ? K[6] : K[26];
assign K4[11] = decrypt_int ? K[54] : K[17];
assign K4[12] = decrypt_int ? K[34] : K[54];
assign K4[13] = decrypt_int ? K[11] : K[6];
assign K4[14] = decrypt_int ? K[40] : K[3];
assign K4[15] = decrypt_int ? K[48] : K[11];
assign K4[16] = decrypt_int ? K[17] : K[12];
assign K4[17] = decrypt_int ? K[32] : K[27];
assign K4[18] = decrypt_int ? K[20] : K[40];
assign K4[19] = decrypt_int ? K[19] : K[39];
assign K4[20] = decrypt_int ? K[13] : K[33];
assign K4[21] = decrypt_int ? K[39] : K[34];
assign K4[22] = decrypt_int ? K[47] : K[10];
assign K4[23] = decrypt_int ? K[55] : K[18];
assign K4[24] = decrypt_int ? K[3] : K[55];
assign K4[25] = decrypt_int ? K[49] : K[16];
assign K4[26] = decrypt_int ? K[16] : K[7];
assign K4[27] = decrypt_int ? K[38] : K[1];
assign K4[28] = decrypt_int ? K[21] : K[43];
assign K4[29] = decrypt_int ? K[36] : K[31];
assign K4[30] = decrypt_int ? K[37] : K[28];
assign K4[31] = decrypt_int ? K[31] : K[49];
assign K4[32] = decrypt_int ? K[42] : K[9];
assign K4[33] = decrypt_int ? K[9] : K[0];
assign K4[34] = decrypt_int ? K[22] : K[44];
assign K4[35] = decrypt_int ? K[52] : K[15];
assign K4[36] = decrypt_int ? K[43] : K[38];
assign K4[37] = decrypt_int ? K[15] : K[37];
assign K4[38] = decrypt_int ? K[50] : K[45];
assign K4[39] = decrypt_int ? K[35] : K[2];
assign K4[40] = decrypt_int ? K[44] : K[35];
assign K4[41] = decrypt_int ? K[0] : K[22];
assign K4[42] = decrypt_int ? K[23] : K[14];
assign K4[43] = decrypt_int ? K[29] : K[51];
assign K4[44] = decrypt_int ? K[1] : K[23];
assign K4[45] = decrypt_int ? K[2] : K[52];
assign K4[46] = decrypt_int ? K[14] : K[36];
assign K4[47] = decrypt_int ? K[51] : K[42];
assign K4[48] = decrypt_int ? K[45] : K[8];
 
assign K3[1] = decrypt_int ? K[19] : K[11];
assign K3[2] = decrypt_int ? K[40] : K[32];
assign K3[3] = decrypt_int ? K[55] : K[47];
assign K3[4] = decrypt_int ? K[32] : K[24];
assign K3[5] = decrypt_int ? K[10] : K[34];
assign K3[6] = decrypt_int ? K[13] : K[5];
assign K3[7] = decrypt_int ? K[24] : K[48];
assign K3[8] = decrypt_int ? K[3] : K[27];
assign K3[9] = decrypt_int ? K[26] : K[18];
assign K3[10] = decrypt_int ? K[20] : K[12];
assign K3[11] = decrypt_int ? K[11] : K[3];
assign K3[12] = decrypt_int ? K[48] : K[40];
assign K3[13] = decrypt_int ? K[25] : K[17];
assign K3[14] = decrypt_int ? K[54] : K[46];
assign K3[15] = decrypt_int ? K[5] : K[54];
assign K3[16] = decrypt_int ? K[6] : K[55];
assign K3[17] = decrypt_int ? K[46] : K[13];
assign K3[18] = decrypt_int ? K[34] : K[26];
assign K3[19] = decrypt_int ? K[33] : K[25];
assign K3[20] = decrypt_int ? K[27] : K[19];
assign K3[21] = decrypt_int ? K[53] : K[20];
assign K3[22] = decrypt_int ? K[4] : K[53];
assign K3[23] = decrypt_int ? K[12] : K[4];
assign K3[24] = decrypt_int ? K[17] : K[41];
assign K3[25] = decrypt_int ? K[8] : K[2];
assign K3[26] = decrypt_int ? K[30] : K[52];
assign K3[27] = decrypt_int ? K[52] : K[42];
assign K3[28] = decrypt_int ? K[35] : K[29];
assign K3[29] = decrypt_int ? K[50] : K[44];
assign K3[30] = decrypt_int ? K[51] : K[14];
assign K3[31] = decrypt_int ? K[45] : K[35];
assign K3[32] = decrypt_int ? K[1] : K[50];
assign K3[33] = decrypt_int ? K[23] : K[45];
assign K3[34] = decrypt_int ? K[36] : K[30];
assign K3[35] = decrypt_int ? K[7] : K[1];
assign K3[36] = decrypt_int ? K[2] : K[51];
assign K3[37] = decrypt_int ? K[29] : K[23];
assign K3[38] = decrypt_int ? K[9] : K[31];
assign K3[39] = decrypt_int ? K[49] : K[43];
assign K3[40] = decrypt_int ? K[31] : K[21];
assign K3[41] = decrypt_int ? K[14] : K[8];
assign K3[42] = decrypt_int ? K[37] : K[0];
assign K3[43] = decrypt_int ? K[43] : K[37];
assign K3[44] = decrypt_int ? K[15] : K[9];
assign K3[45] = decrypt_int ? K[16] : K[38];
assign K3[46] = decrypt_int ? K[28] : K[22];
assign K3[47] = decrypt_int ? K[38] : K[28];
assign K3[48] = decrypt_int ? K[0] : K[49];
 
assign K2[1] = decrypt_int ? K[33] : K[54];
assign K2[2] = decrypt_int ? K[54] : K[18];
assign K2[3] = decrypt_int ? K[12] : K[33];
assign K2[4] = decrypt_int ? K[46] : K[10];
assign K2[5] = decrypt_int ? K[24] : K[20];
assign K2[6] = decrypt_int ? K[27] : K[48];
assign K2[7] = decrypt_int ? K[13] : K[34];
assign K2[8] = decrypt_int ? K[17] : K[13];
assign K2[9] = decrypt_int ? K[40] : K[4];
assign K2[10] = decrypt_int ? K[34] : K[55];
assign K2[11] = decrypt_int ? K[25] : K[46];
assign K2[12] = decrypt_int ? K[5] : K[26];
assign K2[13] = decrypt_int ? K[39] : K[3];
assign K2[14] = decrypt_int ? K[11] : K[32];
assign K2[15] = decrypt_int ? K[19] : K[40];
assign K2[16] = decrypt_int ? K[20] : K[41];
assign K2[17] = decrypt_int ? K[3] : K[24];
assign K2[18] = decrypt_int ? K[48] : K[12];
assign K2[19] = decrypt_int ? K[47] : K[11];
assign K2[20] = decrypt_int ? K[41] : K[5];
assign K2[21] = decrypt_int ? K[10] : K[6];
assign K2[22] = decrypt_int ? K[18] : K[39];
assign K2[23] = decrypt_int ? K[26] : K[47];
assign K2[24] = decrypt_int ? K[6] : K[27];
assign K2[25] = decrypt_int ? K[22] : K[43];
assign K2[26] = decrypt_int ? K[44] : K[38];
assign K2[27] = decrypt_int ? K[7] : K[28];
assign K2[28] = decrypt_int ? K[49] : K[15];
assign K2[29] = decrypt_int ? K[9] : K[30];
assign K2[30] = decrypt_int ? K[38] : K[0];
assign K2[31] = decrypt_int ? K[0] : K[21];
assign K2[32] = decrypt_int ? K[15] : K[36];
assign K2[33] = decrypt_int ? K[37] : K[31];
assign K2[34] = decrypt_int ? K[50] : K[16];
assign K2[35] = decrypt_int ? K[21] : K[42];
assign K2[36] = decrypt_int ? K[16] : K[37];
assign K2[37] = decrypt_int ? K[43] : K[9];
assign K2[38] = decrypt_int ? K[23] : K[44];
assign K2[39] = decrypt_int ? K[8] : K[29];
assign K2[40] = decrypt_int ? K[45] : K[7];
assign K2[41] = decrypt_int ? K[28] : K[49];
assign K2[42] = decrypt_int ? K[51] : K[45];
assign K2[43] = decrypt_int ? K[2] : K[23];
assign K2[44] = decrypt_int ? K[29] : K[50];
assign K2[45] = decrypt_int ? K[30] : K[51];
assign K2[46] = decrypt_int ? K[42] : K[8];
assign K2[47] = decrypt_int ? K[52] : K[14];
assign K2[48] = decrypt_int ? K[14] : K[35];
 
assign K1[1] = decrypt_int ? K[40] : K[47];
assign K1[2] = decrypt_int ? K[4] : K[11];
assign K1[3] = decrypt_int ? K[19] : K[26];
assign K1[4] = decrypt_int ? K[53] : K[3];
assign K1[5] = decrypt_int ? K[6] : K[13];
assign K1[6] = decrypt_int ? K[34] : K[41];
assign K1[7] = decrypt_int ? K[20] : K[27];
assign K1[8] = decrypt_int ? K[24] : K[6];
assign K1[9] = decrypt_int ? K[47] : K[54];
assign K1[10] = decrypt_int ? K[41] : K[48];
assign K1[11] = decrypt_int ? K[32] : K[39];
assign K1[12] = decrypt_int ? K[12] : K[19];
assign K1[13] = decrypt_int ? K[46] : K[53];
assign K1[14] = decrypt_int ? K[18] : K[25];
assign K1[15] = decrypt_int ? K[26] : K[33];
assign K1[16] = decrypt_int ? K[27] : K[34];
assign K1[17] = decrypt_int ? K[10] : K[17];
assign K1[18] = decrypt_int ? K[55] : K[5];
assign K1[19] = decrypt_int ? K[54] : K[4];
assign K1[20] = decrypt_int ? K[48] : K[55];
assign K1[21] = decrypt_int ? K[17] : K[24];
assign K1[22] = decrypt_int ? K[25] : K[32];
assign K1[23] = decrypt_int ? K[33] : K[40];
assign K1[24] = decrypt_int ? K[13] : K[20];
assign K1[25] = decrypt_int ? K[29] : K[36];
assign K1[26] = decrypt_int ? K[51] : K[31];
assign K1[27] = decrypt_int ? K[14] : K[21];
assign K1[28] = decrypt_int ? K[1] : K[8];
assign K1[29] = decrypt_int ? K[16] : K[23];
assign K1[30] = decrypt_int ? K[45] : K[52];
assign K1[31] = decrypt_int ? K[7] : K[14];
assign K1[32] = decrypt_int ? K[22] : K[29];
assign K1[33] = decrypt_int ? K[44] : K[51];
assign K1[34] = decrypt_int ? K[2] : K[9];
assign K1[35] = decrypt_int ? K[28] : K[35];
assign K1[36] = decrypt_int ? K[23] : K[30];
assign K1[37] = decrypt_int ? K[50] : K[2];
assign K1[38] = decrypt_int ? K[30] : K[37];
assign K1[39] = decrypt_int ? K[15] : K[22];
assign K1[40] = decrypt_int ? K[52] : K[0];
assign K1[41] = decrypt_int ? K[35] : K[42];
assign K1[42] = decrypt_int ? K[31] : K[38];
assign K1[43] = decrypt_int ? K[9] : K[16];
assign K1[44] = decrypt_int ? K[36] : K[43];
assign K1[45] = decrypt_int ? K[37] : K[44];
assign K1[46] = decrypt_int ? K[49] : K[1];
assign K1[47] = decrypt_int ? K[0] : K[7];
assign K1[48] = decrypt_int ? K[21] : K[28];
 
endmodule
/des.v
0,0 → 1,95
/////////////////////////////////////////////////////////////////////
//// ////
//// DES ////
//// DES Top Level module ////
//// ////
//// Author: Rudolf Usselmann ////
//// rudi@asics.ws ////
//// ////
/////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2001 Rudolf Usselmann ////
//// rudi@asics.ws ////
//// ////
//// 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. ////
//// ////
/////////////////////////////////////////////////////////////////////
 
module des(desOut, desIn, key, decrypt, roundSel, clk);
output [63:0] desOut;
input [63:0] desIn;
input [55:0] key;
input decrypt;
input [3:0] roundSel;
input clk;
 
wire [1:48] K_sub;
wire [1:64] IP, FP;
reg [1:32] L, R;
wire [1:32] Xin;
wire [1:32] Lout, Rout;
wire [1:32] out;
 
assign Lout = (roundSel == 0) ? IP[33:64] : R;
assign Xin = (roundSel == 0) ? IP[01:32] : L;
assign Rout = Xin ^ out;
assign FP = { Rout, Lout};
 
crp u0( .P(out), .R(Lout), .K_sub(K_sub) );
 
always @(posedge clk)
L <= #1 Lout;
 
always @(posedge clk)
R <= #1 Rout;
// Select a subkey from key.
key_sel u1(
.K_sub( K_sub ),
.K( key ),
.roundSel( roundSel ),
.decrypt( decrypt )
);
 
// Perform initial permutation
assign IP[1:64] = { desIn[06], desIn[14], desIn[22], desIn[30], desIn[38], desIn[46],
desIn[54], desIn[62], desIn[04], desIn[12], desIn[20], desIn[28],
desIn[36], desIn[44], desIn[52], desIn[60], desIn[02], desIn[10],
desIn[18], desIn[26], desIn[34], desIn[42], desIn[50], desIn[58],
desIn[00], desIn[08], desIn[16], desIn[24], desIn[32], desIn[40],
desIn[48], desIn[56], desIn[07], desIn[15], desIn[23], desIn[31],
desIn[39], desIn[47], desIn[55], desIn[63], desIn[05], desIn[13],
desIn[21], desIn[29], desIn[37], desIn[45], desIn[53], desIn[61],
desIn[03], desIn[11], desIn[19], desIn[27], desIn[35], desIn[43],
desIn[51], desIn[59], desIn[01], desIn[09], desIn[17], desIn[25],
desIn[33], desIn[41], desIn[49], desIn[57] };
 
// Perform final permutation
assign desOut = { FP[40], FP[08], FP[48], FP[16], FP[56], FP[24], FP[64], FP[32],
FP[39], FP[07], FP[47], FP[15], FP[55], FP[23], FP[63], FP[31],
FP[38], FP[06], FP[46], FP[14], FP[54], FP[22], FP[62], FP[30],
FP[37], FP[05], FP[45], FP[13], FP[53], FP[21], FP[61], FP[29],
FP[36], FP[04], FP[44], FP[12], FP[52], FP[20], FP[60], FP[28],
FP[35], FP[03], FP[43], FP[11], FP[51], FP[19], FP[59], FP[27],
FP[34], FP[02], FP[42], FP[10], FP[50], FP[18], FP[58], FP[26],
FP[33], FP[01], FP[41], FP[09], FP[49], FP[17], FP[57], FP[25] };
 
 
endmodule

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.