#!/usr/local/bin/perl @PC2_C=(14,17,11,24, 1, 5, 3,28,15, 6,21,10, 23,19,12, 4,26, 8, 16, 7,27,20,13, 2, ); @PC2_D=(41,52,31,37,47,55, 30,40,51,45,33,48, 44,49,39,56,34,53, 46,42,50,36,29,32, ); $i=0; foreach (@PC2_C) { $_--; # printf "%2d,",$_; $C{$_}=$i; ++$i; # print "\n" if ((($i) % 8) == 0); } $i=0; #print "\n"; foreach (@PC2_D) { $_-=28; $_--; # printf "%2d,",$_; $D{$_}=$i; $i++; # print "\n" if ((($i) % 8) == 0); } #print "\n"; foreach $i (0 .. 27) { $_=$C{$i}; # printf "%2d,",$_; $i++; # print "\n" if ((($i) % 8) == 0); } #print "\n"; #print "\n"; foreach $i (0 .. 27) { $_=$D{$i}; # printf "%2d,",$_; $i++; # print "\n" if ((($i) % 8) == 0); } #print "\n"; print "static ulong skb[8][64]={\n"; &doit("C",*C, 0, 1, 2, 3, 4, 5); &doit("C",*C, 6, 7, 9,10,11,12); &doit("C",*C,13,14,15,16,18,19); &doit("C",*C,20,22,23,25,26,27); &doit("D",*D, 0, 1, 2, 3, 4, 5); &doit("D",*D, 7, 8,10,11,12,13); &doit("D",*D,15,16,17,18,19,20); &doit("D",*D,21,22,23,24,26,27); print "};\n"; sub doit { local($l,*A,@b)=@_; local(@out); printf("/* for $l bits (numbered as per FIPS 46) %d %d %d %d %d %d */\n", $b[0]+1, $b[1]+1, $b[2]+1, $b[3]+1, $b[4]+1, $b[5]+1); for ($i=0; $i<64; $i++) { $out[$i]=0; $j=1; #print "\n"; for ($k=0; $k<6; $k++) { $l=$A{$b[$k]}; #print"$l - "; if ((1<<$k) & $i) { $ll=int($l/6)*8+($l%6); $out[$i]|=1<<($ll); } } $pp=$out[$i]; $pp=($pp&0xff0000ff)| (($pp&0x00ff0000)>>8)| (($pp&0x0000ff00)<<8); printf("0x%08X,",$pp); print "\n" if (($i+1) % 4 == 0); } }