WGU D334 INTRO TO CRYPTOGRAPHY TEST
QUESTIONS WITH ANSWERS CORRECT
DES key and block sizes? ANSWER: 56-bit key size, 64-bit block size
How big are the 3DES blocks and keys? ANSWER: 112-bit key size, 64-bit
block size
What are the AES block and key sizes? ANSWER 256-, 128-, or 192-bit key
size, block size
IDEA key and block sizes? ANSWER: 128-bit key size, 64-bit block size
What is the size of the skipjack block and key? ANSWER: 80-bit key size, 64-
bit block size
What are the blowfish block and key sizes? The answer is 64 bits for the block
size and 32-48 bits for the key size (usually 128, 192, or 256).
What are the block and key sizes of Twofish? ANSWER: 1-256 bit key size,
128 bit block size (usually 128, 192, or 256).
What are the RC5 block and key sizes? ANSWER: 0–2048 bit key size, 32, 64,
or 128 bit block size
What are the RC2 block and key sizes? ANSWER 64-bit block size, 1-128-bit
key size (at least 40 is advised)
What are the RC6 block and key sizes? ANSWER Variable bit key size
(usually 128, 192, or 256), and variable bit block size (usually 128)
QUESTIONS WITH ANSWERS CORRECT
DES key and block sizes? ANSWER: 56-bit key size, 64-bit block size
How big are the 3DES blocks and keys? ANSWER: 112-bit key size, 64-bit
block size
What are the AES block and key sizes? ANSWER 256-, 128-, or 192-bit key
size, block size
IDEA key and block sizes? ANSWER: 128-bit key size, 64-bit block size
What is the size of the skipjack block and key? ANSWER: 80-bit key size, 64-
bit block size
What are the blowfish block and key sizes? The answer is 64 bits for the block
size and 32-48 bits for the key size (usually 128, 192, or 256).
What are the block and key sizes of Twofish? ANSWER: 1-256 bit key size,
128 bit block size (usually 128, 192, or 256).
What are the RC5 block and key sizes? ANSWER: 0–2048 bit key size, 32, 64,
or 128 bit block size
What are the RC2 block and key sizes? ANSWER 64-bit block size, 1-128-bit
key size (at least 40 is advised)
What are the RC6 block and key sizes? ANSWER Variable bit key size
(usually 128, 192, or 256), and variable bit block size (usually 128)