Learn how to implement a classic substitution cipher in C! This step-by-step tutorial walks you through encoding and decoding messages by replacing each letter with another according to a fixed key. A ...

A new study suggests the Voynich manuscript, written in an unknown script sometime in the 1400s, could be a type of encrypted message. Science journalist Michael Greshko created the 'Naibbe cipher', a ...

The Voynich manuscript—a mysterious medieval book that has defied translation for centuries—may have been created using a special code developed with the help of cards and dice, a new study suggests.

The Voynich manuscript — often called the most mysterious manuscript in the world — has eluded attempts to understand its origin, nature, and purpose for centuries. Its text is made up of a strange ...

The year was 1637, and Georg Baresch, an alchemist and renowned collector of antiquities based in Prague, had a baffling mystery on his hands. For years now, he had been in possession of a most ...

Abstract: The Substitution Box (S-Box) is the only nonlinear component in block ciphers, playing a crucial role in ensuring the security of the cipher. Various methods for generating S-Boxes have been ...