stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Cybersecurity 4.1.1-4.1.2 Flashcards | StudBud
Explore
/
Cybersecurity 4.1.1-4.1.2
Which of the following ciphers use words as keys?
Free points!
Cybersecurity 4.1.1-4.1.2
7 terms
·
StudBud Administration
·
92 plays
PLTW's Activity 4.1.1 quiz
Flashcards
7 cards
F
Practice quiz
P
Host live
L
Questions
7
Answers
1
Free points!
YES!!!!!!!!
CLICK HERE
CLICK MEEEEE!
CORRECT!
2
Which of the following ciphers use words as keys?
Caesar
Enigma
Viginere
Affine
3
What is the formula for the Caesar cipher,
x
= original letter,
n
= shift value,
y
= sub letter
y = x + n (mod)26
y = x + n
yn = x / 26
y = [a * x + b] mod 26
4
Which of the following are true about the Diffie-Hellman Encryption Key?
It is faster than symmetric encryption
It uses a one way function
It combines both symmetric and asymmetric encryption
It uses 4 keys between 2 users
5
Where did the first known cipher originate?
China
Greece
Rome
South America
6
Which of the following are true about symmetric keys.
Symmetric is slower than asymmetric
It was invented by Alan Turing
It involves 1 shared key
It is more secure than asymmetric
7
How many asymmetric keys are needed for 10,000 users?
20,000
10,000 squared
10,000
100,000,000
