To implement a program to encrypt a plain text and decrypt a cipher text using play fair Cipher substitution technique. Testing algorithm with different key values. ALGORITHM DESCRIPTION: The Playfair ...

The Playfair cipher starts with creating a key table. The key table is a 5×5 grid of letters that will act as the key for encrypting your plaintext. Each of the 25 letters must be unique and one ...

The Playfair cipher is an incredibLe code system that is both difficult to decrypt without a computer and easily solvable by hand. You might be familiar with the Cryptoquip in the comics section of a ...

In 1854, Sir Charles Wheatstone invented the cipher known as "Playfair," named for his friend Lyon Playfair, first Baron Playfair of St. Andrews, who popularized and promoted the cipher. Its ...

The Double Playfair is an extension of the Playfair to use two separate keys and to encipher each pair of letters twice. The German police made the mistake in late 1941 of switching from the rather ...

Abstract: In this study, we present the Multi-Staged Matrix Transformations Playfair Cipher (MSMT-PF), a novel approach designed to advance the traditional Playfair cipher's encryption security. While ...

Abstract: Transmission of information plays a vital role in the world. Now-a-days, at a given point of time, two people are transmitting messages from one place to another irrespective of the distance ...