CB3491 CCS MCQ

Which one of the following algorithm is not used in asymmetric-key cryptography?

• RSA algorithm

• Diffie-hellman algorithm

• Electronic code book algorithm

• DSA algorithm

An asymmetric-key cipher uses

• 1 Key

• 2 Keys

• 3 Keys

• 4 Keys

Find x for the CRT when x= 2 mod 3; x= 3 mod 5; x = 2 mod 7

• 33

• 22

• 23

• 31
  

In asymmetric key cryptography, the private key is kept by

• Sender

• Receiver

• Sender & Receiver

• All the connected devices to the network

In an asymmetric key cipher the sender uses which key?

• Private

• Public

• Either a or b

• Neither a nor b

. _______ is a round cipher uses a 128-bit block of data

• AEE

• AED

• AER

• AES

The ________ method provides a one time session key for 2 parties

• Diffie-Hellman

• RSA

• DES

• AES

AES has ......... different configurations

• 2

• 3

• 4

• 5

Public-key cryptography is also known as ?

• Asymmetric cryptography

• Symmetric cryptography

• Both A and B

• None of the above

Private key algorithm is used for _____ encryption and public key algorithm is used for _____ encryption.

• Messages, session key

• Session key, messages

• Can be used for both

• None of the above