Q1.) 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 encr

Q1.) 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. The mentioned standard uses 10 rounds in AES-128, 12 rounds in AES-192, and 14 rounds in AES-256. Through encryption, every round is collected as a set of four main transformations. Figure 2 displays the main construction of the encryption in AES method. Each round covers four main transformations: SubByte, Shift Row, Mix Column, and Add Round Key.

Need Help with the question calculate this following:

K (secret key): the first 128 bits of ASCII codes of your full name and your postal address AS (CHIDCHANOK 340 A)

P (plaintext): the first 128 bits of ASCII codes of your email address AS (

[email protected]

)

To perform a round of encryption on the plaintext using AES-128, writing out the following steps:

1.Calculate the Initial Transformation output

2.Calculate the first SubByte Transformation output

3. Calculate the first Shift Row Transformation output

4. Calculate the first Mix Column Transformation output