open$a,shift;open$b,shift;$|=1<<4<<8;print$^A^$^L while read$a,$^A,$|&
+& read$b,$^L,$|
My first obfu...please be gentle. Runs under warnings and strict. Usage: Provide two files and it'll spit out the encrypted output to standard out. To recover either of the original files, provide the encrypted text with the other file. For instance, if you ran the script on files foo and bar originally and saved the output in baz, you would recover foo by running the script on bar and baz. Similarly, you would recover bar by running against foo and baz.
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