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Cryptography Quizz

Total questions: 13

Worksheet time: 6mins

Name
Class
Date
1.

Plaintext

a)

original message

b)

coded message

c)

algorithm for transforming plaintext to ciphertext

d)

info used in cipher known only to sender/receiver

2.

ciphertext

a)

•field of both cryptography and cryptanalysis

b)

•study of encryption principles/methods

c)

•converting plaintext to ciphertext

d)

•coded message

3.

cipher

a)

•study of principles/methods of deciphering ciphertext without knowing key

b)

•converting plaintext to ciphertext

c)

•coded message

d)

algorithm for transforming plaintext to ciphertext

4.

key

a)

algorithm for transforming plaintext to ciphertext

b)

info used in cipher known only to sender/receiver

c)

•recovering ciphertext from plaintext

d)

•converting plaintext to ciphertext

5.

encipher

a)

converting plaintext to ciphertext

b)

coded message

c)

•study of principles/methods of deciphering ciphertext without knowing key

d)

study of encryption principles/methods

6.

decipher

a)

original message

b)

algorithm for transforming plaintext to ciphertext

c)

recovering plaintext from ciphertext

d)

•field of both cryptography and cryptanalysis

7.

cryptography

a)

•study of principles/methods of deciphering ciphertext without knowing key

b)

•study of encryption principles/methods

c)

•field of both cryptography and cryptanalysis

d)

•coded message

8.

cryptanalysis

a)

field of both cryptography and cryptanalysis

b)

study of encryption principles/methods

c)

•study of principles/methods of deciphering ciphertext without knowing key

d)

converting plaintext to ciphertext

9.

cryptology

a)

coded message

b)

original message

c)

recovering ciphertext from plaintext

d)

field of both cryptography and cryptanalysis

10.

Confidentiality

a)

Ensure message remains secret during transmission between parties

b)

Ensure message is not altered while in transit between communicating partners

c)

Verifies sender is who she says she is

d)

Proves that nobody but on sender could have sent a particular message

11.

Integrity

a)

Ensure message remains secret during transmission between parties

b)

Ensure message is not altered while in transit between communicating partners

c)

Verifies sender is who she says she is

d)

Proves that nobody but on sender could have sent a particular message

12.

Authentication

a)

Ensure message remains secret during transmission between parties

b)

Ensure message is not altered while in transit between communicating partners

c)

Verifies sender is who she says she is

d)

Proves that nobody but on sender could have sent a particular message

13.

Non-repudiation

a)

Ensure message remains secret during transmission between parties

b)

Ensure message is not altered while in transit between communicating partners

c)

Verifies sender is who she says she is

d)

Proves that nobody but on sender could have sent a particular message