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Qu'est-ce (qui) est rot13 - définition

CAESAR CIPHER

Rot13; ROT-13; ROT-47; Rot47; Rot-13; Rot-47; ROT47; ROT 13; ROT26; Double ROT13; Ebg13; Memfrob; Furrfu; EBG13; Rot 13; ROT-26; 2ROT13; EbG13; Rot13.; Rotate by 13 places; R-O-T 13; EOT13; Rotate 13

rot13

/rot ther'teen/ [Usenet: from "rotate alphabet 13 places"], v. 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 spoilers. 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. [Jargon File]

furrfu

<jargon> Written-only rot13 "Sheesh!". "furrfu" evolved in mid-1992 as a response to postings repeating urban myths on newsgroup news:alt.folklore.urban, after some posters complained that "Sheesh!" as a response to newbies was being overused. (1995-10-25)

Wikipédia

ROT13

ROT13 ("rotate by 13 places", sometimes hyphenated ROT-13) 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.

Because there are 26 letters (2×13) in the basic Latin alphabet, ROT13 is its own inverse; that is, to undo ROT13, the same algorithm is applied, so the same action can be used for encoding and decoding. The algorithm provides virtually no cryptographic security, and is often cited as a canonical example of weak encryption.

ROT13 is used in online forums as a means of hiding spoilers, punchlines, puzzle solutions, and offensive materials from the casual glance. ROT13 has inspired a variety of letter and word games online, and is frequently mentioned in newsgroup conversations.

https://en.wikipedia.org/wiki/ROT13