2014-04-26 10:52:28 -04:00
|
|
|
rot13
|
|
|
|
|
|
2014-04-26 11:54:15 -04:00
|
|
|
/rot therteen/ , n.,v. [Usenet: from rotate alphabet 13 places ] The simple
|
|
|
|
|
Caesar-cypher encryption that replaces each English letter with the one 13
|
|
|
|
|
places forward or back along the alphabet, so that The butler did it!
|
|
|
|
|
becomes Gur ohgyre qvq vg! Most Usenet news reading and posting programs
|
|
|
|
|
include a rot13 feature. It is used to enclose the text in a sealed wrapper
|
|
|
|
|
that the reader must choose to open e.g., for posting things that might
|
|
|
|
|
offend some readers, or spoiler s. A major advantage of rot13 over rot( N )
|
|
|
|
|
for other N is that it is self-inverse, so the same code can be used for
|
|
|
|
|
encoding and decoding. See also spoiler space , which has partly displaced
|
|
|
|
|
rot13 since non-Unix-based newsreaders became common.
|
|
|
|
|
|
