From ancient time onwards encryption techniques are used to alter plain text in to cryptic text, to protect privacy of the message and also to ensure the security of the message. Various algorithms are used for encryption and its sole purpose is to ensure the privacy of the message. The objective of this research article is to decipher and compare the traditional encryption technique Hill Cipher and modern encryption method, the AES. Hill Cipher and AES are part of the symmetric encryption meaning that encryption and decryption process uses the same key and in both Hill Cipher and AES Algorithms, there is only one key for encryption and decryption. Encryption methods using symmetric key are of two types block ciphers and stream ciphers with Hill Cipher and AES Algorithms being examples of the block cipher encryption. This paper encompasses the comparison of the advanced encryption standard (AES) along with Hill Cipher encryption.

Keywords : Hill Cipher, Encryption, AES, Decryption.