Encryption

What is the primary purpose of encryption?

• To make the message look more appealing

• To increase the size of the message for storage purposes

• To scramble the contents of a message so only specific people can read it

• To speed up the transmission of messages

How many types of encryption are mentioned?

• One

• Two

• Three

• Four

What type of encryption requires a passphrase to encrypt and decrypt a message?

• Public key encryption

• Asymmetric encryption

• Symmetric encryption

• RSA encryption

What problem does asymmetric encryption solve?

• Securely sharing a passphrase

• Speed of encryption

• Improving the visual appeal of the encrypted message

• Reducing the size of the encrypted message

What analogy is used to explain asymmetric encryption?

• A secret handshake

• A mailbox

• A hidden treasure

• A locked diary

Which algorithm is mentioned as a popular and secure way to generate a keypair for asymmetric encryption?

• SHA-256

• RSA

• AES

• MD5

What can public keys be used for in asymmetric encryption?

• Neither encrypting nor decrypting data

• Decrypting data

• Both encrypting and decrypting data

• Encrypting data

Why can't messages encrypted with Bob's public key be decrypted by Alice?

• Because Bob does not have Alice's private key

• Because Alice does not have Bob's public key

• Because Alice does not have Bob's private key

• Because the encryption is symmetric

What is a real-world application of asymmetric encryption?

• Listening to music online

• Visiting secure websites via HTTPS

• Visiting insecure websites

• Sending unencrypted emails