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 ...

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 ...

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 ...

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 ...

Abstract: Cryptography or message hiding techniques can be a solution to avoid cybercrime. One of the techniques is Playfair Cipher that is a cryptographic algorithm. It can hide messages by forming a ...

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: During past few decades, communication over internet increased to transfer digital data across worldwide. The development of communication media over untrusted network bring lot of ...