Cryptography

Question 1

Advanced Encryption Standard

AES

Answer 1

128,192, & 256-bit Block Cypher
Used in WPA2
Symmetric

Question 2

Data Encryption Standard

DES

Answer 2

64-bit cypher, 56-bit key

Symmetric

Question 3

3DES

Answer 3

DES algorithm x 3
Three keys, two keys, or the same keys three times
Symmetric

Question 4

Advanced Encryption Standard

AES

Answer 4

64-bit block cypher, 1-448 bits length

Symmetric

Question 5

Twofish

Answer 5

128-bit block size, size up to 256 bits

Symmetric

Question 6

RSA

Answer 6

Public-key cryptography system based on the product of two large prime numbers
Used for web site encryption and DRM
Asymmetric

Question 7

Diffie-Helman Key Exchange

Answer 7

Key exchange over an insecure communications channel; anonymous key-agreement protocol
Asymmetric

Question 8

One Time Pad

Answer 8

Encrypt teletype communication
Unbreakable when used correctly
Asymmetric

Question 9

One Time Pad Rules

Answer 9

Key is the same size as the plaintext.
Truly random, used only once.
Asymmetric