1.Which of the following Bare Bones programs is self-terminating Assume X > 0

A. while X not 0:

B. while X not 0:

decr X

C. decr X

while X not 0:

2: If c = x mod n then c is guaranteed to be in which of the following sets

a.{ 1, 2, 3, n-1 }

b.{ 0, 1, 2, 3, . n-1 }

c.{ -(n-1), -(n-2), -(n-3), -2, -1 0 }

d.{ 1, 2, 3, . n }

3. If x^a mod n = c and x^b mod n = d then x^a+b mod equals

A. c + d mod n

B. c*d mod n

C. c^d mod n

D. None of the above

4. Using the private keys n = 133 and d = 5, decrypt the message 7

a. 7

b. 37

c. 49

d. None of the above