A symmetric cipher that maps each letter of the alphabet to its reverse counterpart. For example, 'A' is replaced by 'Z', 'B' by 'Y', 'C' by 'X', and so on. It is a fixed substitution cipher, meaning ...

King Charles III's royal cipher was unveiled on Monday, Sept. 26, revealing the monogram for the United Kingdom's new monarch. The king's cipher is a monogram consisting of his first name initial, C, ...

GameSpot may get a commission from retail offers. Fortnite Cipher Quests are here for just a few more days, and the encrypted Cipher Quests are trickier than your typical Fortnite challenge.

This project implements the ROT13 algorithm, a simple encryption method that shifts each letter of the plaintext by 13 positions in the alphabet. ROT13 stands for "rotate by 13 places" and is a type ...

FORT HUACHUCA, Ariz. -- When Ralph Van Deman established the War Department's intelligence organization shortly after the United States entered World War I, he was faced with the daunting task of ...