#!/bin/perl -s-- #export-a-crypto-system sig, RSA in 4 lines PERL:
$e-$d&(($k,$n)=@ARGV)==2||die"$0 -d|-e key mod <in >out\n";$v=$w=1+length$n&
~1;$v-=$d*2;$w-=$e*2;$_=unpack('B*',pack('H*',1&length$k?"0$k":$k));s/^0+//;
s/1/0lM*ln%/g;s/0/d*ln%/g;while(read(STDIN,$m,$w/2)){$m=unpack("H$w",$m);$a=
`echo 16oOi\U$m SM$n\Esn1$_ p|dc`;print pack("H$v",'0'x($v+1-length$a).$a);}