Your link is somewhat broken. It only works if you have an account on that site.

I don't know Math::XOR, and I don't really see the need for it when Perl has a string xor operator. 

# Assumes ASCII.
$string1 = "@@@@@";
$string2 = "ABCDE";
$xored = $string1 ^ $string2;
print($xored eq "\x01\x02\x03\x04\x05" ? "ok\n" : "not ok\n");

[download]

In practice: (Added) 

my $repeats     = (length($cipher_text) / length($pass)) + 1;
my $pass_stream = substr($pass x $repeats, 0, length($cipher_text));
my $plain_text  = $cipher_text ^ $pass_stream;

[download]

Also, I'm not sure why you aren't using a foreach loop. 

foreach my $c1 ('a'..'z') {
foreach my $c2 ('a'..'z') {
foreach my $c3 ('a'..'z') {
   my $pass = $c1 . $c2 . $c3;
   ...
}}}

[download]

Finally, @list[$count1] should be $list[$count1]. Use $ when you want a scalar (single element). Use @ when you want a list (multiple elements).

In reply to Re: Math::XOR problem by ikegami
in thread Math::XOR problem by kuratkull

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