Hi, Thanks for responding. I found a way to encrypt the string. The encryption may be easily guessed or cracked but it does make it harder for people to read what the string is, which is my intention. 
my $Sentence = "Answer to puzzle\n";
print "$Sentence\n";
my $Hex = unpack("H*",$Sentence);
print "$Hex\n";
# prints '416e7377657220746f2070757a7a6c650a'
my $Sentence2 = pack("H*",$Hex);
print "$Sentence2\n";
# prints 'Answer to puzzle'

[download]
cheers, kiat

In reply to Re: how to encrypt a string... by kiat
in thread how to encrypt a string... by kiat

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