Cryptography Basics Quiz

What is the purpose of cryptographic salts?

• To encrypt messages using a public key

• To enhance security by adding randomness to passwords before hashing

• To compress data before encryption

• To verify the integrity of data

Which of the following is a computational assumption used in cryptography?

• Computational ease assumption

• Computational hardness assumption

• Computational simplicity assumption

• Computational transparency assumption

What does a one-time pad use to ensure security?

• A digital signature

• A randomly generated key that is as long as the message

• A fixed key that is reused across messages

• A symmetric encryption algorithm

Which of the following is a symmetric key cipher?

• Public key cryptography

• Hash function

• AES

• RSA

Which of the following is reliant on the mathematical principles of cryptography?

• Computational hardness assumption

• Encryption algorithms

• Legal and ethical issues

• Cryptographic primitives

What role does asymmetric encryption play in digital signatures?

• To verify the sender's identity and ensure data integrity

• To encrypt the entire message for confidentiality

• To increase the speed of the encryption process

• To compress the data before encryption

Which algorithm is commonly used for secure hash functions?

• RSA

• SHA-256

• AES

• ECDSA

What is the main purpose of using a public key infrastructure (PKI)?

• To support digital signatures and encryption

• To store private keys securely

• To enhance network speed

• To monitor network traffic

What is the primary function of a digital certificate in network security?

• To verify the identity of devices and users

• To increase the encryption speed

• To store data securely on a device

• To monitor and log network activity

Which cryptographic method is used to secure data at rest?

• Tokenization

• Public key encryption

• Symmetric encryption

• Hashing