Fundamental to Cryptography_Introduction
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This presentation offers a clear and concise introduction to the fascinating world of cryptography. Learn the basic concepts, goals (confidentiality, integrity, authentication, non-repudiation), and the difference between symmetric and asymmetric encryption. We also touch on historical ciphers, modern-day relevance, and real-world applications of cryptography in cybersecurity. Perfect for beginners, students, and anyone curious about how data stays secure in the digital age.
Fundamental to Cryptography_Introduction
- 1. Galgotias University 1 Introduction to Cryptography Session No.: 1 Course Name: Fundamentals of Cryptography Course Code: EIUA408B Instructor Name: Aishwarya Duration: 50 min
- 2. Galgotias University 2 Course Objective 1. Introduce students to fundamental security principles, various types of attacks, and the importance of secure communication. 2. Study symmetric and asymmetric encryption methods, including substitution, transposition, and modern encryption standards. 3. Analyze symmetric and asymmetric encryption algorithms along with cryptanalysis techniques. 4. Can apply Hash function in message authentication 5. Develop problem-solving skills in cryptographic implementations and security management in real-world scenarios.
- 3. Galgotias University 3 Course Outcomes CO NO. COURSE OUTCOMES EIUA408B.1 Explain the security principles, various types of attacks, and the importance of secure communication. EIUA408B.2 Describe symmetric and asymmetric encryption methods EIUA408B.3 Analyse symmetric and asymmetric encryption algorithms along with cryptanalysis techniques. EIUA408B.4 Can apply and evaluate Hash function in message authentication EIUA408B.5 Develop problem-solving skills in cryptographic implementations and security management in real-world scenarios.
- 4. Galgotias University 4 Course Assessment
- 5. Galgotias University 5 A. Basic Concepts of Security B. Need of Security C. What is Information Recap
- 6. Galgotias University 6 Ques? When you send a message to a friend, how can you be sure that no one else is reading it?
- 7. Galgotias University 7 Opening Question? Have you ever wondered how your passwords stay safe when logging into a website?
- 8. Galgotias University 8 LEARNING OUTCOMES LO1 • Define Information security and explain its importance in protecting data and systems LO2 • Describe the key Security requirements of confidentiality, integrity, and availability. At the end of this session students will be able to
- 9. Galgotias University 9 Session Outline 1. Basic terminologies in Security 2. Learning Concept of Activity 1 3. A1(TPS): Why security is important 4. Learning Concept of Activity 2 5. A2 (Case Based Study):Real-World Problem Analysis. 6. Conclusion & Closing Activity
- 10. Galgotias University 10 Concept and Definition for Learning Activity 1
- 11. Galgotias University 11 Information Security: is a set of security procedures and tools that broadly protect sensitive enterprise information from misuse, unauthorized access, disruption, or destruction Network Security: Network security is any activity designed to protect the usability and integrity of your network and data. Network security is the practice of protecting a computer network from unauthorized access, misuse, or attacks Cybersecurity is the protection of information that is stored, transmitted, and processed in a networked system of computers, other digital devices, and network devices and transmission lines, including the Internet
- 12. Galgotias University 12 Learning Activity 1(10 min) : Ask students to reflect individually on information security and its role in protecting data and systems . THINK (2 min) : Students pair up and discuss their thoughts. (3 min) PAIR (3 min) :Pairs share their conclusions with the class. (5 min) SHARE (5 min)
- 13. Galgotias University 13 Quiz on Wooclap
- 14. Galgotias University 14 Concept and Definition for Learning Activity 2
- 16. Galgotias University 16 CIA Traid
- 17. Galgotias University 17 Confidentiality What it means: Only the authorized users should access the data. Example: Your phone’s password ensures only you can unlock it. Data confidentiality: Assures that private or confidential information is not made available or disclosed to unauthorized individuals This term covers two related concepts: Privacy: Ensures that individuals have control over the collection, storage, and disclosure of their personal data through data privacy policies, access controls, and regulatory compliance mechanisms.
- 18. Galgotias University 18 Integrity What it means: Data should not be changed or tampered with incorrectly. Example: A bank transfer of $100 should not change to $1,000 due to an error or hacking Data integrity ensures that data is modified only in authorized ways and remains accurate and trustworthy. It also includes authenticity (verifying data's legitimacy) and non-repudiation (proof of sender and recipient identity). This term covers two related concepts: System integrity: Assures that a system performs its intended function in an unimpaired manner, free from deliberate or inadvertent unauthorized manipulation of the system.
- 19. Galgotias University 19 Availability What it means: Data should be available when needed. Example: If an ATM system crashes, customers won’t be able to withdraw money Assures that systems work promptly and service is not denied to authorized users
- 20. 20 Galgotias University Learning Activity 2(Case Study-10 min) Scenario 1: Unauthorized Access to Patient Records(Confidentiality) Situation: A hospital’s database containing patient medical records is hacked because employees used weak passwords. Scenario 2: Online Banking Transaction Tampering (Integrity Breach) Situation: A hacker intercepts an online banking transaction and changes the transferred amount from $500 to $5,000 Scenario 1: Airline Ticketing System Crash(Availability) Situation: An airline's online booking system crashes during a holiday sale, preventing customers from booking flights.
- 21. Galgotias University 21 Reflection : Learning Activity 2 GroupWise Written Reflection (3-5 min)- Open Ques on Wooclap
- 22. Galgotias University 22 Summary A. Information Security protects data from unauthorized access, modification, and unavailability. B. Confidentiality ensures that only authorized users can access sensitive information (e.g., encryption, access control). C. Integrity maintains data accuracy and prevents unauthorized changes (e.g., hashing, digital signatures). D. Availability ensures systems and data remain accessible when needed (e.g., backups, disaster recovery). E. CIA Triad forms the foundation of cybersecurity, helping prevent data breaches, fraud, and service disruptions.
- 23. Galgotias University 23 Ensure attainment of LOs in alignment to the learning activities: outcomes (1-2) LO1: Define Information security and explain its importance in protecting data and systems LO2Describe the key Security requirements of confidentiality, integrity, and availability.
- 24. Galgotias University 24 Discussion on the post session activities Attempt the Post-session activity on LMS, before next session
- 25. Galgotias University 25 Information to next topic of the course Next session: The need for security, Security Approaches, Principles of Security, Types of Attacks
- 26. Galgotias University 26 Review and Reflection from students https://gulms.galgotiasuniversity.org/mod/ feedback/view.php?id=41919