Question

1. Describe the difference between base64 and a typical symmetric encryption algorithm like AES.

2. Describe in your own words (no more than 100), what is the linear cryptanalysis?

Answer 1

Question 1

base64 is type of encoding , encoding is the way in which data is converted form one form to another so that it is easer to transfer from one medium to another and ease communication , also it compresses the data .

On the other hand AES is an encryption method , encryption means the way to ofsfucate messages so that no unauthorized users can view the message , in encryption basicaaly a key is used to decrypt the original message

Question 2

linear cryptanalysis is a form of attack in which the attacker uses statistical mathematics to determine the probability of correct charcter for an encrypted one.

. The attacker tries to identify the linear relations between the parity bits of the text and decrypt it.