Variation of Playfair Cipher
Piyushi Jain, Surekha Kohle · 2022
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 between them. But the main concern is that how does it guarantee that the message which is received by the receiver is not tampered or is hundred percent confidential. Therefore, this transmission process always faces some problems such as complex working, integrity issues and attacks, which make us doubt whether the data source is correct or incorrect. For this reason, many authors have come up with different variations of encrypting the data. This paper illustrates a Playfair cipher algorithm integrated with MD5 hashing and seed-based algorithm. It is a variation of Playfair cipher which tries to overcome some of the issues which can be seen in other variations of Playfair cipher. It not only provides great range of characters to work with but also provides integrity and prevents our message from man-in-the-middle and brute-force attacks.