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Cyber Security
Unit 1
Cyber Security Course
Introduction to Cyber Security
Network Security Basics
Cryptography Essentials
Understanding Cyber Threat Intelligence
Unit 2
Cyber Security Course
Incident Response Planning
Security Policies and Compliance Overview
Ethical Hacking Techniques
Web Application Security Best Practices
Unit 3
Cyber Security Course
Cloud Security Fundamentals
IoT Security Measures
Social Engineering Tactics
Digital Forensics Investigation
Unit 1 • Chapter 3
Cryptography Essentials
Summary
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Concept Check
What is a symmetric encryption algorithm?
Algorithm using same key for both encryption and decryption
Algorithm using different keys for encryption and decryption
Algorithm using public and private keys
Algorithm without any keys
What is the public key used for in asymmetric cryptography?
Encrypting data that can only be decrypted with private key
Encrypting data that can only be decrypted with another public key
Decrypting data that was encrypted with private key
Creating digital signatures for authentication
What is the main purpose of digital signatures in cryptography?
To encrypt and decrypt sensitive information
To verify the authenticity and integrity of a message
To generate symmetric keys for secure communication
To securely authenticate users during login process
What is the key difference between block ciphers and stream ciphers?
Stream ciphers are slower than block ciphers in encrypting data
Block ciphers are more vulnerable to attacks compared to stream ciphers
Block ciphers process data in blocks while stream ciphers process data bit by bit
Block ciphers require symmetric keys while stream ciphers require asymmetric keys
What is a rainbow table in the context of cryptography attacks?
Precomputed table for reversing cryptographic hash functions
Data table used to brute force password combinations
Table used to encrypt data before transmitting it over a network
Lookup table for symmetric encryption algorithms
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Network Security Basics
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Understanding Cyber Threat Intelligence