CS161 Summer 2026

Instructors: Justin Yokota, Peyrin Kao / Lecture: MTuWTh, 12:30–2:00 PM, Hearst Field Annex A1 [Zoom, Playlist]

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Course Calendar

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Wk.	Date	Lecture	Discussion	Project
1	Mon Jun 22	1. Introduction and Security Principles Slides / Ch. 1	0. 61C Review Discussion: Worksheet / Solutions / Video / Slides	Project 1 Checkpoint (due Wed Jul 01)
		2. x86 Slides / Ch. 2 / x86/GDB Cheat Sheet
	Tue Jun 23
	Wed Jun 24	3. Memory Safety Vulnerabilites I Slides / Ch. 3	1. Security Principles and x86 Discussion: Worksheet / Solutions / Video / Slides
		4. Memory Safety Vulnerabilities II Slides / Ch. 3
	Thu Jun 25
2	Mon Jun 29	5. Mitigating Memory Safety Vulnerabilities I Slides / Ch. 4	2. Memory Safety Discussion: Worksheet / Solutions / Slides
	Tue Jun 30
		6. Memory Safety Buffer Slides
	Wed Jul 01	7. SQL Injection and XSS Slides / Ch. 17 / Ch. 22	3. Memory Safety Mitigations and Injection Attacks Discussion: Worksheet / Solutions / Slides	Project 1 (due Wed Jul 08)
	Thu Jul 02
		8. Passwords and CSRF Slides / Ch. 14 / Ch. 21
3	Mon Jul 06	9. Cryptographic Hashes Slides	4. Cookies Discussion: Worksheet / Slides
		10. MACs
	Tue Jul 07
		11. Signatures
	Wed Jul 08	12. Certificates	5.	Project 2 Spec Quiz (due Fri Jul 10)
		13. OTP and IND-CPA
	Thu Jul 09
		14. Block Cipher
4	Mon Jul 13	15. CTR and GCM	6.	Project 2 Design Checkpoint (due Fri Jul 17)
		16. DHE
	Tue Jul 14
		17. PKE (El Gamal)
	Wed Jul 15	18. TLS I	7.
		19. TLS II
	Thu Jul 16
		20. What TLS doesn't solve: DoS, DNS, VPNs, Tor
5	Mon Jul 20	21. Signal	8.	Project 2 Testing Checkpoint (due Fri Jul 24)
		22. Isolation I: Controlled Sharing, Delegation
	Tue Jul 21
		23. Isolation II: Non-Interference, Techniques, VM, Wasm
	Wed Jul 22	24. Software Trust (Secure Boot)	9.
		25. Hardware Trust (Spectre/Meltdown)
	Thu Jul 23
		26. Privilege Separation
6	Mon Jul 27	27. iOS Security Case Study	10.	Project 2 (due Fri Jul 31)
		28. iOS, VM/Wasm, or Spectre/Meltdown buffer
	Tue Jul 28
		29. iOS, VM/Wasm, or Spectre/Meltdown buffer
	Wed Jul 29	30. LLM Data Poisoning	11.
		31. Clickjacking and Phishing
	Thu Jul 30
		32. Differential Policy
7	Mon Aug 03	33. LLM Memorization and Safety	12.	Project 3 (due Wed Aug 12)
		34. Summary
	Tue Aug 04
		35. Bonus Lecture: TBD
	Wed Aug 05		13.
		36. Bonus Lecture: TBD
	Thu Aug 06
		Final Exam
8	Mon Aug 10		No Discussion
	Tue Aug 11
	Wed Aug 12
	Thu Aug 13