Encryption and Caesar Cipher Quiz

What is encryption?

• The process of unscrambling a message to make it readable

• The process of changing a message to hide the original text

• The process of intercepting a message and decoding it

• The process of sending a message over shared wires and connections

What is decryption?

• The process of unscrambling a message to make it readable

• The process of changing a message to hide the original text

• The process of intercepting a message and decoding it

• The process of sending a message over shared wires and connections

What is Caesar's Cipher?

• An algorithm that encrypts messages using a 10-digit key

• An algorithm that encrypts messages using a public key

• An algorithm that substitutes each letter in the original message with a letter a certain number of steps down the alphabet

• An algorithm that encrypts messages using a 256-bit key

What is the problem with Caesar's Cipher?

• It can only encrypt short messages

• It can only encrypt messages with a specific key length

• It can be easily cracked by trying every possible key

• It can only be decrypted by a computer with access to the private key

What is symmetric encryption?

• Encryption where a private key is used to decrypt data

• Encryption where a public key is used to encrypt data

• Encryption where each letter in the message is shifted by a different amount

• Encryption where the sender and receiver share the same key

What is asymmetric encryption?

• Encryption where the sender and receiver share the same key

• Encryption where each letter in the message is shifted by a different amount

• Encryption where the sender and the recipient use two different keys

• Encryption where a private key is used to decrypt data

What is the purpose of public key cryptography?

• To encrypt data using a shared key

• To intercept and decode messages

• To decrypt data using a shared key

• To exchange secure messages without needing to agree on a private key

What security protocols use public key encryption?

• SSL and TLS

• Symmetric encryption

• Caesar's Cipher

• 256-bit encryption

What does the little lock or the letters https in a browser's address bar indicate?

• The use of symmetric encryption

• The use of asymmetric encryption

• The use of private key encryption

• The use of public key encryption

Why is it important to develop new encryption methods?

• To make encryption harder for computers to break

• To make encryption harder for humans to break

• To make encryption accessible to everyone

• To make encryption faster and more efficient