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Cryptography

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

A document is received in an altered form. Which property of security is compromised:

a)

Privacy

b)

Authentication

c)

Integrity

d)

Availability

2.

Due to an attack, a server was down for an hour. Which property of security is compromised:

a)

Privacy

b)

Authentication

c)

Integrity

d)

Availability

3.

DoS attack compromises which of the CIA Triad –

a)

C

b)

I

c)

A

d)

None of these

4.

RSA is

a)

Symmetric Algorithm

b)

Asymmetric Algorithm

c)

Hash Function

d)

None of these

5.

Key size in DES is

a)

56

b)

64

c)

128

d)

192

6.

Your encryption algorithm reverses the entered text. The type of cypher used is:

a)

Substitution

b)

Transposition

c)

Hashing

d)

Composition

7.

Block size in AES

a)

64

b)

128

c)

56

d)

192

8.

The key size in AES is

a)

128

b)

192

c)

256

d)

Any of these

9.

The Block size in DES is

a)

56

b)

64

c)

32

d)

128

10.

Which of the following is False

a)

Public key is not a secret

b)

Nonrepudiation ensures an act by a party to be proved

c)

Authentication ensures the message remains unchanged

d)

Privacy ensures the message remains unintelligible