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Exploring Cryptography and Security: A Deep Dive into Privacy and Communication

Join us for today's student panel featuring insightful discussions led by esteemed panelists including Victor Abecassis, Maria Aiura, and Jenna Diaz, among others. In CS 101, Week 6, the focus is on Cryptography, instructed by Ronen Gradwohl, who brings a wealth of experience from Jerusalem and the Weizmann Institute. We will explore the practical applications of cryptography in ensuring secure communication and delve into privacy in economics through game theory. This session will also highlight zero-knowledge proofs, emphasizing their relevance in real-world scenarios.

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Exploring Cryptography and Security: A Deep Dive into Privacy and Communication

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Presentation Transcript

  1. Thadeus Duval Mats Johansen Jack Kennedy Brittany Lee Kyle Steffens The following "student panelists" are requested to sit in the front rows at designated seats. Today's Student Panel • Victor Abecassis • Maria Aiura • Wynee Bao • Nate Bartlett • Jenna Diaz

  2. CS 101: Week 6 Cryptography and Security

  3. Instructor Introduction: Ronen Gradwohl • My Background: • From Jerusalem. Moved back and forth. • Undergrad: UC Berkeley. • Grad: Weizmann Institute, Israel. • Hobbies: • Formerly: ultimate frisbee, rock climbing. • Now: three kids… • Reasons I’m in CS: • Fun math/logic puzzles. • I didn’t know what I wanted to do in college.

  4. Instructor Introduction: Ronen Gradwohl • Current Position: • MEDS Department, Kellogg School of Management • My Research: • Interface of CS (especially cryptography) with game theory and economics. • Example Project: Privacy in Economics • In game theory and economics, we usually think of people as being self-interested (maximize wealth). • But what if they additionally care about privacy? • A few weeks ago, I wanted to buy socks on Amazon…

  5. This Class: Cryptography • Art of the Problem, “Public Key Cryptography: Diffie-Hellman Key Exchange.” YouTube, February 2012. • Quisquater et al. “How to explain zero-knowledge protocols to your children,” Advances in Cryptography, 1990.

  6. Example applications of cryptography

  7. Secure Communication

  8. Secure Communication: Diffie-Hellman Compare to Art of the Problem

  9. Zero Knowledge Compare to Quisquater et al.

  10. Zero Knowledge Proof forSudoku

  11. Zero Knowledge Proof forSudoku Flip coin: rows or columns?

  12. Zero Knowledge Proof forSudoku 1 2 3 3 1 2 3 2 1

  13. Why Does It Work?

  14. How Would You Generalize This to Real 9 x 9 Sudoku?

  15. How Could We Make It Better?

  16. Zero Knowledge Proof forSudoku

  17. Zero Knowledge Proof forSudoku 1 2 3 3 1 2 3 2 1 2 3 2 1 2 1 3 1 3

  18. Physical Cryptography

  19. Physical Cryptography

  20. Visual Cryptography

  21. Next Class: Security, Privacy, Voting • Jefferson et al., “Analyzing Internet Voting Security”, CACM, October 2004. • David Bismark, “E-voting without Fraud,” TED Talk, July 2012. • (OPTIONAL) Cyrus Farivar, “Clean Elections” CACM, October 2008. • Samuel Greengard, “Privacy Matters”, CACM, September 2010.

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