Encryption and Cryptography

Question 1

AES

Answer 1

Advanced Encryption Standard- symmetric encryption

Question 2

DES

Answer 2

Data Encryption Standard- old symmetric encryption

Question 3

3DES

Answer 3

Triple DES- stronger version of DES

Question 4

RC4

Answer 4

Stream cipher- deprecated

Question 5

IDEA

Answer 5

International Data Encryption Algorithm- older symmetric cipher

Question 6

RSA

Answer 6

Asymmetric encryption algorithm- public/private keys

Question 7

ECC

Answer 7

Elliptic Curve Cryptography- asymmetric, efficient

Question 8

ECDHE

Answer 8

Elliptic Curve Digital Signature Algorithm- signing messages

Question 9

DHE

Answer 9

Diffie-Hellman Ephemeral- enables PFS

Question 10

ECDHE

Answer 10

Elliptic Curve DHE- PFS with ECC

Question 11

SHA

Answer 11

Secure Hash Algorithm- hashes for integrity

Question 12

KEK

Answer 12

Key Encryption Key- key used to encrypt other keys

Question 13

CBC

Answer 13

Cipher Block Chaining- block cipher mode

Question 14

ECB

Answer 14

Electronic codebook- block cipher mode, not secure alone

Question 15

CFB

Answer 15

Cipher Feedback- block cipher mode

Question 16

GCM

Answer 16

Galois/Counter Mode- block cipher mode with authentication

Question 17

PFX

Answer 17

Personal Information Exchange- file format for certificates