This is an encryption algorithm commonly used for hiding information in [usenet] posts that is open to all but not immediately readable. An example is posting about film endings, or example answers.

The algorithm is actually a [caesar] cipher with a 13 place rotation. This number is special because in an alphabet with 26 letters, caesar 13 and caesar -13 use the same map, so the same call can be used for encoding and decoding. ([RS])

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So, using rot13, "fnynq" is caesar salad. --[CLN]

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See also [vignere], [caesar], [uuencode], [base64] 

[Category Package] [Category Cryptography]