Deck 3: Cryptography and Security: Part B

Question 1

An attack in which the user receives unwanted amount of e- mails.

A)smurfing
B)denial of service
C)e-mail bombing
D)ping storm

Answer 1

e-mail bombing

Question 2

In same keys are implemented for encrypting as well as decrypting the information.

A)symmetric key encryption
B)asymmetric key encryption
C)asymmetric key decryption
D)hash-based key encryption

Answer 2

symmetric key encryption

Question 3

The procedure to add bits to the last block is termed as

A)decryption
B)hashing
C)tuning
D)padding

Answer 3

padding

Question 4

In asymmetric key cryptography, the private key is kept by

A)sender
B)receiver
C)sender and receiver
D)all the connected devices to the network

Question 5

Cryptanalysis is used __________________________________________

A)to find some insecurity in a cryptographic scheme
B)to increase the speed
C)to encrypt the data
D)to make new ciphers

Question 6

Conventional cryptography is also known as or symmetric-key encryption.

A)secret-key
B)public key
C)protected key
D)primary key

Question 7

________________________________________________________is the art & science of cracking the cipher-text without knowing the key.

A)cracking
B)cryptanalysis
C)cryptography
D)crypto-hacking