14 lines
728 B
Plaintext
14 lines
728 B
Plaintext
rot13
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/rot therteen/ , n.,v. [Usenet: from rotate alphabet 13 places ] The simple
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Caesar-cypher encryption that replaces each English letter with the one 13
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places forward or back along the alphabet, so that The butler did it!
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becomes Gur ohgyre qvq vg! Most Usenet news reading and posting programs
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include a rot13 feature. It is used to enclose the text in a sealed wrapper
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that the reader must choose to open e.g., for posting things that might
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offend some readers, or spoiler s. A major advantage of rot13 over rot( N )
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for other N is that it is self-inverse, so the same code can be used for
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encoding and decoding. See also spoiler space , which has partly displaced
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rot13 since non-Unix-based newsreaders became common.
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