Cryptography

What is cryptography?

• The study of living organisms

• The art of making and deciphering secret codes

• The process of creating computer algorithms

• The science of predicting future events

What is a Caesar cipher?

• A type of biometric authentication

• A cryptographic algorithm that uses substitution

• A symmetric encryption algorithm

• A public-key encryption algorithm

Which of the following is an example of a biometric characteristic?

• Password

• PIN

• Fingerprint

• Encryption key

What is a key in cryptography?

• A secret message

• An algorithm for encrypting data

• A type of cipher

• A mathematical value used to encrypt or decrypt data

Which of the following is a type of biometric security?

• Facial recognition

• Firewall

• VPN

• Encryption

What does the term "phishing" refer to in the context of cybersecurity?

• A type of biometric authentication

• A technique used to encrypt data

• A method of impersonating a legitimate entity to deceive individuals

• A form of symmetric encryption

What is the purpose of a digital signature in cryptography?

• To authenticate the sender of a message

• To encrypt data for secure transmission

• To generate random numbers for encryption

• To prevent unauthorized access to a system

Which of the following is NOT a benefit of biometric security?

• Unique and difficult to forge

• Can be easily changed or reset

• Convenient and user-friendly

• Can provide strong authentication

Which of the following is a common vulnerability in biometric authentication systems?

• Weak encryption algorithms

• Phishing attacks

• Shoulder surfing

• Brute force attacks

What is the main difference between symmetric and asymmetric encryption?

• Something you know

• Something you have

• Something you are

• Something you can do