cryptography

(1 point) Consider the hex strings AuOxbf83a986812d3082 and 80x6060606af845491 a) What is A e B in hexadecimal? Please give your answer a leading Ox and use lowercase letters ony. Make sure you use exactly 16 hex digits (which may involve typing in leading zeros) hexadecimat: b) Suppose that A was generated uniformly at random from all B byte strings. What is the probability that the second binary digit of Ais 17 c) Suppose that A was generated uniformly at random from all 8 byte strings. What is the probability that the second binary digit of A Bis 1? (1 point) A cryptography student has accidentally used the same keystream to encrypt two different messages, M, and Mg. We know that the ciphertexts are G = Oxaf83bc8207865582 and Cy=0x85/975/94301668. We also happen to know that M = 0xb212020117401c. a) What is M, in hexadecimal? Please give your answer a leading Ox and use lowercase letters only b) What is the keystream? Please give your answer a leading ox and use lowercase letters only Hint: These are all 8 byte numbers and will fit in an unsigned long type on most systems