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ROT13 is a simple letter substitution cipher that replaces a letter with the 13th letter after it in the Latin alphabet.
ROT13 is a special case of the Caesar cipher which was developed in ancient Rome, used by Julius Caesar in the 1st century BC.[1] An early entry on the Timeline of cryptography.
ROT13 can be referred by "Rotate13", "rotate by 13 places", hyphenated "ROT-13" or sometimes by its autonym "EBG13".
- ^ Kahn, David. The Codebreakers: The Story of Secret Writing. New York: Macmillan. ISBN 0-684-83130-9.