^ or ^= is a good start. XOR is your friend.

See encryption golf (one time pad) for some Perl Golf over the one-time pad using XOR. It's a fairly fast and very simple shared secret algorithm. It's also very secure if you actually only use the key once, and it's absolutely trivial to implement.

In reply to Re: Fastest Encrypt/Decrypt by mr_mischief
in thread Fastest Encrypt/Decrypt by avo

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