CryptoSec.AB2
Cryptography And Network Security
Strengthen your defenses against cyber attacks by learning cryptography and network security principles and practices.
- Practice in 23 Hands-On Labs — nothing to install
- 28 Interactive Lessons and 145 topics mapped to the official exam objectives
- 368 Practice Test Questions and 2 Full Length Tests
Beginner Self-paced · 1 year access
23 Hands-On LiveLabs
Practice real IT tasks in guided environments.
- Real environments
- Auto-graded
- No installation
28Interactive Lessons
145Topics
23LiveLab
368Practice Test Questions
201Flashcards
201Glossary of terms
01 / Skills you'll get
What you will be able to do
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No credit card required
We'll break down core network security and cryptography concepts, so you'll understand the foundations of securing information and networks. Uncover how secure communication protocols like TLS/SSL and SSH safeguard data transmission.
You’ll also learn how firewalls and intrusion detection systems work to identify and mitigate threats like DDoS attacks. In addition, explore security considerations of cloud computing and the Internet of Things (IoT) to gain strategies for securing these emerging technologies.
Our hands-on virtual labs solidify your understanding of real-world tools for encryption and decryption, network security configuration, and implementing best practices.
- Understand core cybersecurity concepts for securing information and networks.
- Grasp the fundamentals of cryptography and explore various encryption methods.
- Apply secure communication protocols like TLS/SSL and SSH to safeguard data transmission.
- Mitigate security challenges specific to wireless networks and email communication.
- Master essential network security tools and best practices, including firewalls and intrusion detection systems.
- Navigate the security considerations of cloud computing and the Internet of Things (IoT).
- Gain hands-on experience with real-world security tools through practical exercises.
Course Highlights
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28 Structured Lessons Comprehensive coverage of core course objectives
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23 Hands-On LiveLabs Interactive guided scenarios with instant evaluation
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368 Practice Questions Assessment tests with detailed answer rationales
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1 Year Full Access Self-paced learning accessible anytime on all devices
02 / Lessons & labs
See exactly what you will learn and practice
Lessons
28 Interactive Lessons · 145 topics01 Information and Network Security Concepts 9 topics +
- Cybersecurity, Information Security, and Network Security
- The OSI Security Architecture
- Security Attacks
- Security Services
- Security Mechanisms
- Cryptography
- Network Security
- Trust and Trustworthiness
- Standards
02 Introduction to Number Theory 9 topics +
- Divisibility and The Division Algorithm
- The Euclidean Algorithm
- Modular Arithmetic
- Prime Numbers4
- Fermat’s and Euler’s Theorems
- Testing for Primality
- The Chinese Remainder Theorem
- Discrete Logarithms
- Appendix 2A: The Meaning of Mod
03 Classical Encryption Techniques 3 topics · 2 LiveLab +
- Symmetric Cipher Model
- Substitution Techniques
- Transposition Techniques
2 LiveLab in this lesson — see the labs panel →
04 Block Ciphers and the Data Encryption Standard 5 topics · 2 LiveLab +
- Traditional Block Cipher Structure
- The Data Encryption Standard
- A DES Example
- The Strength of DES
- Block Cipher Design Principles
2 LiveLab in this lesson — see the labs panel →
05 Finite Fields 6 topics +
- Groups
- Rings
- Fields
- Finite Fields of the Form GF(p)
- Polynomial Arithmetic
- Finite Fields of the Form GF (2n)
06 Advanced Encryption Standard 7 topics +
- Finite Field Arithmetic
- AES Structure
- AES Transformation Functions
- AES Key Expansion
- An AES Example
- AES Implementation
- Appendix 6A: Polynomials with Coefficients in GF(28)
07 Block Cipher Operation 8 topics · 1 LiveLab +
- Multiple Encryption and Triple DES
- Electronic CodeBook
- Cipher Block Chaining Mode
- Cipher Feedback Mode
- Output Feedback Mode
- Counter Mode
- XTS-AES Mode for Block-Oriented Storage Devices
- Format-Preserving Encryption
1 LiveLab in this lesson — see the labs panel →
08 Random Bit Generation and Stream Ciphers 7 topics +
- Principles of Pseudorandom Number Generation
- Pseudorandom Number Generators
- Pseudorandom Number Generation Using a Block Cipher
- Stream Ciphers
- RC4
- Stream Ciphers Using Feedback Shift Registers
- True Random Number Generators
09 Public-Key Cryptography and RSA 2 topics · 2 LiveLab +
- Principles of Public-Key Cryptosystems
- The RSA Algorithm
2 LiveLab in this lesson — see the labs panel →
10 Other Public-Key Cryptosystems 4 topics · 1 LiveLab +
- Diffie–Hellman Key Exchange
- Elgamal Cryptographic System
- Elliptic Curve Arithmetic
- Elliptic Curve Cryptography
1 LiveLab in this lesson — see the labs panel →
11 Cryptographic Hash Functions 5 topics · 2 LiveLab +
- Applications of Cryptographic Hash Functions
- Two Simple Hash Functions
- Requirements and Security
- Secure Hash Algorithm (SHA)
- SHA-3
2 LiveLab in this lesson — see the labs panel →
12 Message Authentication Codes 9 topics +
- Message Authentication Requirements
- Message Authentication Functions
- Requirements for Message Authentication Codes
- Security of MACs
- MACs Based on Hash Functions: HMAC
- MACs Based on Block Ciphers: DAA and CMAC
- Authenticated Encryption: CCM and GCM
- Key Wrapping
- Pseudorandom Number Generation Using Hash Functions and MACs
13 Digital Signatures 6 topics · 1 LiveLab +
- Digital Signatures
- Elgamal Digital Signature Scheme
- Schnorr Digital Signature Scheme
- Nist Digital Signature Algorithm
- Elliptic Curve Digital Signature Algorithm
- RSA-PSS Digital Signature Algorithm
1 LiveLab in this lesson — see the labs panel →
14 Lightweight Cryptography and Post-Quantum Cryptography 4 topics +
- Lightweight Cryptography Concepts
- Lightweight Cryptographic Algorithms
- Post-Quantum Cryptography Concepts
- Post-Quantum Cryptographic Algorithms
15 Cryptographic Key Management and Distribution 5 topics · 2 LiveLab +
- Symmetric Key Distribution Using Symmetric Encryption
- Symmetric Key Distribution Using Asymmetric Encryption
- Distribution of Public Keys
- X.509 Certificates
- Public-Key Infrastructure
2 LiveLab in this lesson — see the labs panel →
16 User Authentication 5 topics · 1 LiveLab +
- Remote User-Authentication Principles
- Remote User-Authentication Using Symmetric Encryption
- Kerberos
- Remote User-Authentication Using Asymmetric Encryption
- Federated Identity Management
1 LiveLab in this lesson — see the labs panel →
17 Transport-Level Security 4 topics · 2 LiveLab +
- Web Security Considerations
- Transport Layer Security
- HTTPS
- Secure Shell (SSH)
2 LiveLab in this lesson — see the labs panel →
18 Wireless Network Security 4 topics +
- Wireless Security
- Mobile Device Security
- IEEE 802.11 Wireless LAN Overview
- IEEE 802.11i Wireless LAN Security
19 Electronic Mail Security 9 topics · 2 LiveLab +
- Internet Mail Architecture
- Email Formats
- Email Threats and Comprehensive Email Security
- S/MIME
- DNSSEC
- DNS-Based Authentication of Named Entities
- Sender Policy Framework
- Domainkeys Identified Mail
- Domain-Based Message Authentication, Reporting, and Conformance
2 LiveLab in this lesson — see the labs panel →
20 IP Security 5 topics · 1 LiveLab +
- IP Security Overview
- IP Security Policy
- Encapsulating Security Payload
- Combining Security Associations
- Internet Key Exchange
1 LiveLab in this lesson — see the labs panel →
21 Network Endpoint Security 4 topics · 4 LiveLab +
- Firewalls
- Intrusion Detection Systems
- Malicious Software
- Distributed Denial of Service Attacks
4 LiveLab in this lesson — see the labs panel →
22 Cloud Security 5 topics +
- Cloud Computing
- Cloud Security Concepts
- Cloud Security Risks and Countermeasures
- Cloud Security as a Service
- An Open-Source Cloud Security Module
23 Internet of Things (IoT) Security 3 topics +
- The Internet of Things
- IoT Security Concepts and Objectives
- An Open-Source IoT Security Module
24 Appendix A: Basic Concepts from Linear Algebra 2 topics +
- A.1 Operations on Vectors and Matrices
- A.2 Linear Algebra Operations Over Zn
25 Appendix B: Measures of Secrecy and Security 5 topics +
- B.1 Conditional Probability
- B.2 Perfect Secrecy
- B.3 Information and Entropy
- B.4 Entropy and Secrecy
- B.5 Min-Entropy
26 Appendix C: Data Encryption Standard +
27 Appendix D: Simplified AES 5 topics +
- D.1 Overview
- D.2 S-AES Encryption and Decryption
- D.3 Key Expansion
- D.4 The S-box
- D.5 S-AES Structure
28 Appendix E: Mathematical Basis of the Birthday Attack 5 topics +
- E.1 Related Problem
- E.2 The Birthday Paradox
- E.3 Useful Inequality
- E.4 The General Case of Duplications
- E.5 Overlap Between Two Sets
Hands-On Labs Our edge
23 LiveLabs- Performing Symmetric Encryption
- Using Caesar Cipher
- Using DES
- Using Advanced Encryption Standard
- Using Triple DES
- Generating Cryptographic Keys
- Examining Asymmetric Encryption
- Performing an MITM Attack
- Observing MD5 Hash Values
- Understanding SHA Hash Algorithms
- Using Digital Signature
- Examining a Self-Signed Certificate
- Examining PKI Certificates
- Examining Kerberos Settings
- Analysing HTTPs for Network Security
- Configuring an SSH Server
- Exploiting SMTP
- Configuring a DNS Server
- Configuring IPSec
- Creating a Demilitarized Zone
- Configuring a Firewall
- Implementing Intrusion Detection and Prevention
- Simulating a DoS Attack
Labs run in your browser — nothing to install.
03 / FAQs
Questions before you start
What is cryptography in cyber security? +
In computer science, cryptography is the study and practice of maintaining secure communications using mathematical algorithms to disguise the message in the presence of threats.
Why do we use cryptography? +
Cryptography is important because it safeguards individuals and organizations against today’s cyber threats and information theft or loss.
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Make Expert-Approved Cryptography and Network Security Notes
Learn advanced cryptography and network security techniques to disguise your sensitive information and fortify your organization’s defenses against notorious cyber attacks.
- 1 year of full access
- 23 LiveLab included
- Certificate of completion
No credit card required