return [key_matrix[i:i + 5] for i in range(0, 25, 5)] row1, col1 = find_position(pair[0], key_matrix) row2, col2 = find_position(pair[1], key_matrix) row1, col1 ...

The file must be in the same folder as playfair.jar, and the user can enter the file with or without its .txt. extension, as the program will check if the extension is present in the entered filename ...

Abstract: Cryptographic systems are either symmetric or asymmetric. Symmetric cryptographic systems use one common key for both encryption and decryption. Asymmetric cryptographic models use different ...