History of the Playfair Cipher | Hankering for History

given a 5x5 matrix for playfair cipher a how many possible keys does the playfair cipher have ignore the fact that some keys might produce identical encryption results express your answer as 00792

How to Encode and Decode Using the Vigènere Cipher

The Caesar cipher

Playfair Cipher in network security | Playfair cipher example | playfair cipher encryption example | playfair cipher in cryptography

What is Hill Cipher?