![]() Only those letters which occur in the English alphabet are affected numbers, symbols, whitespace, and all other characters are left unchanged. A becomes N, B becomes O, and so on up to M, which becomes Z, then the sequence reverses: N becomes A, O becomes B, and so on to Z, which becomes M. ROT13 has inspired a variety of letter and word games on-line, and is frequently mentioned in newsgroup conversations.Īpplying ROT13 to a piece of text merely requires examining its alphabetic characters and replacing each one by the letter 13 places further along in the alphabet, wrapping back to the beginning if necessary. It is often cited as a canonical example of weak encryption. The algorithm provides no real cryptographic security and should never be used for such. ![]() 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. ROT13 is a variation of the Caesar cipher, developed in ancient Rome. ROT13 has been described as the " Usenet equivalent of a magazine printing the answer to a quiz upside down". ROT13 (" rotate by 13 places", sometimes hyphenated ROT-13) is a simple substitution cipher used in online forums as a means of hiding spoilers, punchlines, puzzle solutions, and offensive materials from the casual glance. For example, HELLO becomes URYYB (or, decrypting, URYYB becomes HELLO again). data needsROT13 replaces each letter by its partner 13 characters further along the alphabet. This function performs a ROT13 encode/decode on the data. Will be a random integer between 1 and 255. key ( int) – The key used for the XOR operation.This function obfuscates the data using an byte-wise XOR operation. obfuscate_xor ( data, key=None, minimum_length=32 ) ¶ This function performs a ROT13 encode on the data. obfuscate_rot13 ( data, key=None, minimum_length=32 ) ¶ If theĮncoding operation produces fewer bytes that this, random bytes areĪppended to the end of the result so len(bytes) = minimum_length. minimum_length ( int) – The minimum number of bytes to return. ![]() ![]() Value will be a random integer between 40 and 127.
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