Advanced Encryption Standard $($AES$)$ is a symmetric block cipher encryption that receives $128-$bit size for each

block and the size of key is $128,192,$ and $256$ bits. AES procedure involves some encryption rounds, which are

determined by the cipher key size.

$(1)$ Use JavaScript or Java to implement the Client$-$Side Encryption Tool Interface as shown in Figure $1.$

$(2)$ Use a Crypto Library to implement AES$-256$ encryption on a secret message with a list of your accounts,

usernames, and passwords, where the encryption key is your email address.

$(3)$ Output the encrypted message $($in the hexadecimal form$).$

$(4)$ Use a Crypto Library to implement AES$-256$ decryption on the encrypted message $($in the hexadecimal

form$),$ where the decryption key is your email address.

$(5)$ Output the decrypted message and check if it is the same as the original secret message.