About this document
Playfair Cipher: Digraph Encryption Guide by Shivansh Pundir is a document available to read on EtoBox.
The document discusses the Playfair cipher, a digraph substitution cipher that employs a 5x5 grid keyed with a keyword to encrypt plaintext by substituting each pair of letters for a different pair. It describes the encryption and decryption processes which involve locating letter pairs in the grid and replacing them with the letters in the same row and column. The document also analyzes the security of the Playfair cipher, noting it is more secure than simple substitution ciphers due to the use of digraph
- Author
- Shivansh Pundir
- Language
- EN