IGCSE Encryption Quiz

Which type of encryption uses the same key for both encryption and decryption?

• Symmetric encryption

• Reverse encryption

• Double encryption

• Asymmetric encryption

What is asymmetric encryption?

• A method of encryption that does not require any keys

• A method of encryption that uses a pair of keys to encrypt and decrypt data

• A method of encryption that only works for text data

• A method of encryption that uses a single key to encrypt and decrypt data

Which type of encryption uses a pair of keys for encryption and decryption?

• Hash encryption

• One-time pad encryption

• Asymmetric encryption

• Symmetric encryption

What is public key cryptography?

• A method of encryption that uses only one key for both encryption and decryption

• A method of encryption that uses two keys - a public key for encryption and a private key for decryption

• A method of encryption that does not involve keys at all

• A method of encryption that uses a private key for encryption and a public key for decryption

How does public key cryptography differ from symmetric encryption?

• Public key cryptography uses two different keys for encryption and decryption.

• Public key cryptography does not involve encryption or decryption.

• Public key cryptography uses the same key for encryption and decryption.

• Symmetric encryption uses two different keys for encryption and decryption.

What are the advantages of asymmetric encryption?

• Faster communication speed

• Secure communication, digital signatures, key exchange

• Less secure than symmetric encryption

• Limited use in digital transactions

What are the disadvantages of symmetric encryption?

• Vulnerability to brute force attacks

• Key distribution issues and the need for secure key exchange

• Slow encryption process

• Limited scalability

What are the disadvantages of asymmetric encryption?

• Easier to decrypt by hackers

• Slower performance and higher computational resources

• Less secure than symmetric encryption

• Limited use for large amounts of data