Quick Encryption Facts

Question 1

AES encrypts data in blocks of what?

Answer 1

128bits

Question 2

Blowfish encryption key length range…

Answer 2

32bit to 448bit

Question 3

AES and Two Fish have the same selection of encryption key lengths, what are they?

Answer 3

128bit, 192bit, 256bit

Question 4

Block sizes for Blowfish and Twofish Block Ciphers?

Answer 4

Blowfish 64-bit block

Twofish 128-bit block

Question 5

RSA key size

Answer 5

2048bit

Question 6

DES ,3DES and ____ are ____ ciphers that encrypt data in blocks of ____?

Answer 6

DES ,3DES and BLOWFISH are BLOCK ciphers that encrypt data in 64-BIT BLOCKS?

Question 7

TwoFish key sizes

Answer 7

128bit
192bit
256bit

Question 8

Key size of DES

Answer 8

56bits

Question 9

3DES key sizes

Answer 9

56bit
112bit
168bit

Question 10

Name the two 128bit block ciphers

Answer 10

AES

Twofish

Question 11

List the block ciphers that have 3 different key lengths each…

Answer 11

AES
3DES
Twofish

Question 12

List the 4 Cipher Block modes, starting with the most simplest first.

Answer 12

ECB (Electronic Code Book)
GCM - Galois/Counter Mode
CTM - Counter Mode
CBC - Cipher Block Chaining

Question 13

Cipher suites contain information on what cryptographic solutions?

Answer 13

Encryption
Authentication
Integrity

Question 14

Complete the information
TLS uses ______ cryptography to exchange keys
TLS uses ______ for authentication
TLS uses ____ ____ ____ for integrity

Answer 14

TLS uses asymmetric cryptography to exchange keys
TLS uses certificates for authentication
TLS uses message authentication code (HMAC) for integrity