The value is the cipher key. For example, the code IBDLBEBZ is encrypted with a Caesar Cipher. It doesn’t take very much to see that a shift of “1” would reveal HACKADAY.

Object Details Author Churchhouse, R. F Contents 1. Introduction -- 2. From Julius Caesar to simple substitution -- 3. Polyalphabetic systems -- 4. Jigsaw ciphers -- 5. Two-letter ciphers -- 6. Codes ...

Editor’s note: The headline on this article, “Cxjlrp Zfmebop,” is a simple Caesar cipher in which every letter of the original headline is shifted three letters back in the alphabet.

Some ciphers have simple keys, others, complex ones. The key for a cipher used by Augustus Caesar, some 2,000 years ago, was simple enough: The receiver just had to shift the alphabet one position.

“According to Martignago, the Provenzano code might have been made more secure by changing the + 3 key with other shift characters ( +5, +7, +8, etc.) from time to time.” This is one of those ...

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Cipher-cracking AI isn't just for decoding encrypted data—new research shows it can make quick work out of translating human language. A team of researchers from the University of Toronto and ...