Cryptography Definitions

Question 1

OCSP

Answer 1

Online Certificate Status Protocol

Question 2

Message Digest

Answer 2

fixed length block of data, result of hash function

Question 3

IV

Answer 3

Initialization Vector

Question 4

Nonce

Answer 4

Generated IV/Counter IV/Fixed IV/Random IV (↓)

Question 5

PRIME NUMBERS

Answer 5

any number whose factors are 1 and itself only.

Question 6

CO-PRIMES

Answer 6

A number that has no factors in common with another number.

Question 7

EULER’S TOTIENT

Answer 7

Part of RSA.

Question 8

MODULUS OPERATOR

Answer 8

Reminder of divide A by N

Question 9

FIBONACCI NUMBERS

Answer 9

adding the last 2 numbers create next

Question 10

BIRTHDAY PARADOX

Answer 10

Related to hashes and collision.

Question 11

BIRTHDAY ATTACK

Answer 11

Brute force attack against hashes.

Question 12

Ke

Answer 12

secret key

Question 13

E

Answer 13

encryption

Question 14

D

Answer 14

Decryption

Question 15

m

Answer 15

Message

Question 16

a

Answer 16

message authentication code

Question 17

h

Answer 17

MAC function

Question 18

P

Answer 18

public key

Question 19

S

Answer 19

secret key

Question 20

s

Answer 20

signature

Question 21

v

Answer 21

verification key

Question 22

P

Answer 22

plain text

Question 23

C

Answer 23

cipher text

Question 24

l (P)

Answer 24

length ofPlaintextin bytes

Question 25

b

Answer 25

block size

Question 26

K

Answer 26

number of blocks

Question 27

⊕

Answer 27

XOR

Question 28

M

Answer 28

blocks in total

Question 29

n

Answer 29

block size of the block cipher

Question 30

h

Answer 30

iterative hash function

Question 31

T

Answer 31

tag

Question 32

K0

Answer 32

Key Stream