Encryption

Question 1

What is the strongest Encryption Standard?
(Block Cipher and has 128-bit, 192-bit, 256-bit variants)

Answer 1

Advanced Encryption Standard (AES)

Question 2

Advanced Encryption Standard (AES)

Answer 2

strongest Encryption Standard?
Block Cipher and has 128-bit, 192-bit, 256-bit variants

Question 3

Data Encryption Standard (DES) and 3DES

Answer 3

Weak
Block Cipher
56 bits (DES)
112 (2 key)
168 bits (3DES)

Can still be used if bundled with other things such as IPSEC

Question 4

Blowfish

Answer 4

Weak
Block Cipher
64bit

Can still be used if bundled with other things such as IPSEC

Question 5

What are the types of Symmetric Encryption?

Answer 5

AES
DES/3DES
BlowFish
Rivest Ciper (RC)

Question 6

hat are the types of Asymmetric Encryption?

Answer 6

RSA
Diffie-Hellman
Digital Signature Algorithim (DSA)
ElGamal

Question 7

RSA

Answer 7

• One of the oldest Asymmetric encryptions
• Used by one user generating both a public and private key then sharing their public key.

Question 8

Diffie-Hellman

Answer 8

Requires two different users generating a private key and using a function, generating a public key which is then exchanged. After receiving the other’s key they then create a secret key using both their personal private key and the other users public key.

Question 9

Digital Signature Algorithm (DSA)

Answer 9

Endorsed by NIST for their Digital Signature Standard

Question 10

What uses ElGamal algorithm?

Answer 10

Used in GNU Privacy Guard
Pretty Good Privacy (PGP)