Consider that you are using 128-bit Advanced Encryption Standard (AES) to encrypt a single message block. The input (hex

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Consider that you are using 128-bit Advanced Encryption Standard
(AES) to encrypt a single message block. The input (hexadecimal) to
the AES Byte Substitution stage is:  EPQRSTUV PQRSTUVE EPQRSTUV
PQRSTUVE where the characters PQRSTUV are used in lieu of the
characters of your student ID. For example, if your student ID is
SWE1234567, then the hexadecimal input to the AES byte substitution
stage will be E1234567 1234567E E1234567 1234567E. Based on this
answer the following questions. For each stage, the input is
dependent on the output of the previous stage.
a) Represent the input as 4×4 AES state matrix