GitHub

CIPHER-VEDA/crypto-algorithms-java

A collection of cryptographic algorithm implementations in Java, designed for both learning and experimentation. This repository is a practical resource for understanding how fundamental encryption, ...
GitHub

gauravjain0377/Play-Fair-Cipher

A modern web application for encrypting and decrypting messages using the Playfair cipher algorithm. Features a clean, professional UI built with HTML, CSS, and JavaScript, backed by a Java HTTP ...
PBS

The Playfair Cipher

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 ...
IEEE

Expending Technique Cryptography for Plaintext Messages by Modifying Playfair Cipher Algorithm with Matrix 5 x 19

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 ...
PBS

The Double Playfair Cipher

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 ...
IEEE

An extended Playfair Cipher using rotation and random swap patterns

Abstract: In this paper, we have proposed an encryption method which is developed by extending Playfair Cipher to make it more secure. Known as Polyalphabetic cipher, Playfair uses a key matrix ...