+u8 data_perm_table[DES_DATA_BLOCK_LEN]={
+ 58,50,42,34,26,18,10,2,60,52,44,36,28,20,12,4,
+ 62,54,46,38,30,22,14,6,64,56,48,40,32,24,16,8,
+ 57,49,41,33,25,17,9,1,59,51,43,35,27,19,11,3,
+ 61,53,45,37,29,21,13,5,63,55,47,39,31,23,15,7
+};
+
+u8 data_expansion_table[DES_SUBKEY_LEN]={
+ 32,1,2,3,4,5,4,5,6,7,8,9,
+ 8,9,10,11,12,13,12,13,14,15,16,17,
+ 16,17,18,19,20,21,20,21,22,23,24,25,
+ 24,25,26,27,28,29,28,29,30,31,32,1
+};
+
+u8 sbox[DES_SBOXES][DES_SBOX_LEN]={
+ {14,4,13,1,2,15,11,8,3,10,6,12,5,9,0,7,
+ 0,15,7,4,14,2,13,1,10,6,12,11,9,5,3,8,
+ 4,1,14,8,13,6,2,11,15,12,9,7,3,10,5,0,
+ 15,12,8,2,4,9,1,7,5,11,3,14,10,0,6,13},
+ {15,1,8,14,6,11,3,4,9,7,2,13,12,0,5,10,
+ 3,13,4,7,15,2,8,14,12,0,1,10,6,9,11,5,
+ 0,14,7,11,10,4,13,1,5,8,12,6,9,3,2,15,
+ 13,8,10,1,3,15,4,2,11,6,7,12,0,5,14,9},
+ {10,0,9,14,6,3,15,5,1,13,12,7,11,4,2,8,
+ 13,7,0,9,3,4,6,10,2,8,5,14,12,11,15,1,
+ 13,6,4,9,8,15,3,0,11,1,2,12,5,10,14,7,
+ 1,10,13,0,6,9,8,7,4,15,14,3,11,5,2,12},
+ {7,13,14,3,0,6,9,10,1,2,8,5,11,12,4,15,
+ 13,8,11,5,6,15,0,3,4,7,2,12,1,10,14,9,
+ 10,6,9,0,12,11,7,13,15,1,3,14,5,2,8,4,
+ 3,15,0,6,10,1,13,8,9,4,5,11,12,7,2,14},
+ {2,12,4,1,7,10,11,6,8,5,3,15,13,0,14,9,
+ 14,11,2,12,4,7,13,1,5,0,15,10,3,9.8,6,
+ 4,2,1,11,10,13,7,8,15,9,12,5,6,3,0,14,
+ 11,8,12,7,1,14,2,13,6,15,0,9,10,4,5,3},
+ {12,1,10,15,9,2,6,8,0,13,3,4,14,7,5,11,
+ 10,15,4,2,7,12,9,5,6,1,13,14,0,11,3,8,
+ 9,14,15,5,2,8,12,3,7,0,4,10,1,13,11,6,
+ 4,3,2,12,9,5,15,10,11,14,1,7,6,0,8,13},
+ {4,11,2,14,15,0,8,13,3,12,9,7,5,10,6,1,
+ 13,0,11,7,4,9,1,10,14,3,5,12,2,15,8,6,
+ 1,4,11,13,12,3,7,14,10,15,6,8,0,5,9,2,
+ 6,11,13,8,1,4,10,7,9,5,0,15,14,2,3,12},
+ {13,2,8,4,6,15,11,1,10,9,3,14,5,0,12,7,
+ 1,15,13,8,10,3,7,4,12,5,6,11,0,14,9,2,
+ 7,11,4,1,9,12,14,2,0,6,10,13,15,3,5,8,
+ 2,1,14,7,4,10,8,13,15,12,9,0,3,5,6,11}
+}
+
+u8 pbox[DES_PBOX_LEN]={
+ 16,7,20,21,29,12,28,17,1,15,23,26,5,18,31,10,
+ 2,8,24,14,32,27,3,9,19,13,30,6,22,11,4,25
+};
+
+u8 data_final_perm_table[DES_DATA_BLOCK_LEN]={
+ 40,8,48,16,56,24,64,32,39,7,47,15,55,23,63,31,
+ 38,6,46,14,54,22,62,30,37,5,45,13,53,21,61,29,
+ 36,4,44,12,52,20,60,28,35,3,43,11,51,19,59,27,
+ 34,2,42,10,50,18,58,26,33,1,41,9,49,17,57,25
+};
+