Lesson 2

What is asymmetric encryption?

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

• A method of encryption that uses two different keys: one for encryption and one for decryption.

• An encryption method based on chaotic mathematical processes.

• An encryption method where keys are stored in the cloud.

• A method of encryption based on quantum cryptography.

Which of the following is an example of an asymmetric encryption algorithm?

• AES

• RSA

• DES

• 3DES

• MD5

In asymmetric encryption, what is the main purpose of the public key?

• To decrypt messages.

• To verify digital signatures.

• To encrypt messages.

• To store encrypted data.

• To generate random keys.

What is the private key used for in asymmetric encryption?

• To encrypt data.

• To sign documents with a digital signature.

• To share with the public for decryption purposes.

• To create public keys.

• To store messages.

What is the main advantage of asymmetric encryption over symmetric encryption?

• It is faster for large amounts of data.

• It does not require the sender and receiver to share the same key securely.

• It is simpler to implement.

• It requires fewer computational resources.

• It is immune to all forms of hacking.

Which of the following is a disadvantage of asymmetric encryption?

• It is slower than symmetric encryption.

• It requires both parties to use the same key.

• It can only be used for small data sets.

• It does not support digital signatures.

• It requires cloud storage.

What type of key is shared publicly in asymmetric encryption?

• Private key

• Public key

• Symmetric key

• Hash key

• Secret key

Which mathematical concept is often used in asymmetric encryption algorithms like RSA?

• Prime factorization

• Fibonacci sequence

• Linear equations

• Trigonometry

• Matrix multiplication

In what scenario is asymmetric encryption commonly used?

• Encrypting large volumes of data during transmission.

• Generating random numbers.

• Securing communication over the internet (e.g., SSL/TLS).

• Compressing files for faster transmission.

• Calculating checksums for error detection.

What does the recipient of a message use to decrypt it in asymmetric encryption?

• Sender’s public key

• Recipient’s private key

• Recipient’s public key

• Sender’s private key

• A shared symmetric key