ch 7

Question 1

What is Asymmetric Encryption?

Answer 1

Asymmetric encryption uses two keys: a public key for encryption and a private key for decryption.

Question 2

Why is asymmetric encryption considered more secure than symmetric encryption?

Answer 2

“Asymmetric encryption is more secure because it has a longer key length and uses more complex algorithms.”

Question 3

What is a key difference between symmetric and asymmetric encryption?

Answer 3

symmetric use one key for encryption and decryption and asymmetric use two keys a public key for encryption and a private key for decryption.

Question 4

What does RSA stand for, and why is it significant?

Answer 4

RSA based on integer factoraization and is the most widely used public key algorthim

Question 5

What are the main features of the RSA algorithm?

Answer 5

RSA provides confidentiality, supports digital signatures, is based on integer factorization, and is secure against brute-force and factorization-based attacks.

Question 6

What is the main security foundation of RSA?

Answer 6

RSA’s security is based on the difficulty of factoring large integers.

Question 7

In asymmetric encryption, which key is used for encryption and which for decryption?

Answer 7

public key for encryption and private for decryption

Question 8

How does asymmetric encryption compare to symmetric encryption in terms of computational effort?

Answer 8

Asymmetric encryption requires more computational effort, making it slower but more secure for certain applications.