Question 1

Part of understanding cryptography is understanding the cryptographic primitives that go into any crypto system. A(n) _______ is a fixed-size input to a cryptographic primitive that is random or pseudorandom.

Options :

A : IV

B : Key

C : Salt

D : Chain

Answer: B

Question 2

Which of the following is a cryptographic protocol that allows two parties to establish a shared key over an insecure channel?

Options :

A : RSA

B : Diffie-Hellman

C : Elliptic Curve

D : MD5

Answer: B

Question 3

Juanita has been assigned the task of selecting email encryption for the staff of the insurance company she works for. The various employees often use diverse email clients. Which of the following methods is available as an add-in for most email clients?

Options :

A : PGP

B : Caesar cipher

C : DES

D : RSA

Answer: A

Question 4

What is the basis for the difficulty in breaking RSA?

Options :

A : Hashing

B : Equations that describe an elliptic curve

C : The birthday paradox

D : Factoring numbers

Answer: D

Question 5

Which one of the following uses three different keys, all of the same size?

Options :

A : DES

B : 3DES

C : AES

D : RSA

Answer: B

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