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Password Database Compromises
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Classroom Contents
Protecting Passwords with Oblivious Cryptography
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- 1 Intro
- 2 Summary Passwords: Ubiquitous, but vulnerable to offline attack
- 3 Pseudorandom Function (PRF)
- 4 Password Database Compromises
- 5 Facebook's Password Onion
- 6 Remote HMAC Distributes Trust
- 7 Our Approach: Pythia PRF
- 8 PRF Query – New User
- 9 Compromise Recovery
- 10 Existing Crypto Primitives are Insufficient
- 11 Partially Obl. PRF Construction
- 12 Advantages of Partially Obl. PRF
- 13 Fast, Scalable PRF Service
- 14 Beyond Web Servers
- 15 Conclusion
- 16 Pythia Open Source Implementation
