Public-key Cryptography - RSA

In RSA, Ф(n) = _______ in terms of p and q.

• (p)/(q)

• (p)(q)

• (p+1)(q+1)

• (p-1)(q-1)

In the RSA public key cryptosystem, which one of the following numbers will always be largest?

• e

• q

• p

• n

In the RSA algorithm, we select 2 random large values ‘p’ and ‘q’. Which of the following is the property of ‘p’ and ‘q’?

• p and q should be divisible by Ф(n)

• p and q should be prime

• p and q should be co-prime

• p/q should give no remainder

Asymmetric key cipher uses_____ key

• 1

• 2

• 3

• 4

What is public key cryptography? (You can choose multiple answers):

• A method of encrypting messages using a secret password.

• A method of encrypting messages using public and private keys.

• A method of encrypting messages using symmetric methods.

• A method of encrypting messages using asymmetric methods.

In the RSA encryption process, how is the message encrypted?

• By performing addition with the public key.

• By performing multiplication with the private key.

• By performing exponentiation with the public key.

• By performing division with the private key.

What is the main disadvantage of using RSA?

• It is not secure enough for modern applications.

• . It requires a lot of processing power to generate keys.

• It is vulnerable to side-channel attacks.

• it's worse than AES.

How does RSA ensure confidentiality of a message?

• By using a one-time pad.

• By using a secret key shared between sender and receiver.

• By encrypting the message with the receiver's public key.

• By encrypting the message with the sender's private key.

Bob is receiving Alice a signed message, what keys does he need (You can choose multiple answers):

• Bob's public

• Bob's private

• Alice's public

• Alice's private

• All are correct

RSA is named after the researchers (_____ ) who proposed it

• River, Shamir, Adleman

• Rivest, Shamir, Adleman

• Rivest, Shamus, Adleman

• Rivest, Shamir, Adlemar