### Lessons 1. [[Authentication|What does it mean to Authenticate a User?]] 2. [[Authentication methods|Authentication Methods]] 3. [[Guessing Entropy]]  4. Example Authentication Method: [[Password hardening|Password Hardening]] 5. [[Password hardening|Implementing Password Hardening: Basic Idea]]  6. [[Password hardening#Instruction Table|Instruction Table and its Entries]] 7. [[Password hardening#Login procedure|Login Procedure Implementation Details]]  8. [[Password hardening#Login procedure|Updating After a Login]] 9. Security Analysis  10. Estimating Hardening Entropy  11. An Example  12. Biometric Authentication Challenges  13. Other authentication methods – something you have and know (Chip and PIN)  14. Attacks Against Authentication ---- ### Sources 1. Georgia Tech Module Lectures from Secure Computer Systems 2. [OMSCS Lecture Notes](https://www.omscs-notes.com/secure-computer-systems/05-authentication/)