I do academic research in computer science (cryptography/security) and related law and policy. I am currently a postdoctoral fellow at Cornell Tech’s Digital Life Initiative, hosted by Helen Nissenbaum and James Grimmelmann. My work is supported by a 2021 Computing Innovation Fellowship.

I recently completed my J.D. at Harvard Law School. Before studying law, I completed my Ph.D. in computer science at MIT, advised by Shafi Goldwasser. During my Ph.D. studies, I was in the Cryptography and Information Security group within the Theory of Computation group at MIT, and also affiliated with MIT’s Internet Policy Research Initiative and with the Digital Currency Initiative (DCI) at the MIT Media Lab. Between 2017–20, I was a Fellow and then an Affiliate at the Berkman-Klein Center for Internet & Society at Harvard University, and between 2018–20 I also did postdoctoral research at the MIT Media Lab’s DCI. I received my B.A. in Computer Science at the University of Cambridge.

Authors are listed alphabetically by last name, except where indicated by an asterisk.

1. KeyForge: Non-Attributable Email from Forward-Forgeable Signatures [ePrint]
   *Michael Specter, Sunoo Park, and Matthew Green
   In the 30th USENIX Security Symposium (USENIX Security 2021).
2. Going from Bad to Worse: from Internet Voting to Blockchain Voting [link]
   *Sunoo Park, Michael Specter, Neha Narula, and Ronald L. Rivest
   In the Journal of Cybersecurity (2021).
3. Fully Deniable Interactive Encryption [ePrint]
   Ran Canetti, Sunoo Park, and Oxana Poburinnaya
   In the 20th Annual International Cryptology Conference (CRYPTO 2020).
4. Data Structures Meet Cryptography: 3SUM with Preprocessing [arXiv]
   Alexander Golovnev, Siyao Guo, Thibaut Horel, Sunoo Park, and Vinod Vaikuntanathan
   In the 52nd ACM Symposium on the Theory of Computing (STOC 2020).
5. It Wasn't Me! Repudiability and Unclaimability of Ring Signatures [ePrint]
   Sunoo Park and Adam Sealfon
   In the 19th Annual International Cryptology Conference (CRYPTO 2019).
6. How to Subvert Backdoored Encryption: Security Against Adversaries that Decrypt [ePrint]
   Thibaut Horel, Sunoo Park, Silas Richelson, and Vinod Vaikuntanathan
   In the 10th Innovations in Theoretical Computer Science conference (ITCS 2019).
7. Compelled Decryption and the Fifth Amendment: Exploring the Technical Boundaries [SSRN]
   Aloni Cohen and Sunoo Park
   In the Harvard Journal of Law and Technology (JOLT), Fall 2018 issue.
8. Static-Memory-Hard Functions and Modeling the Cost of Space vs. Time [ePrint]
   Thaddeus Dryja, Quanquan C. Liu, and Sunoo Park
   In the 16th IACR Theory of Cryptography Conference (TCC 2018).
9. Practical Accountability of Secret Processes [ePrint]
   *Jonathan Frankle, Sunoo Park, Daniel Shaar, Shafi Goldwasser, and Daniel J. Weitzner
   In the 27th USENIX Security Symposium (USENIX Security 2018).
10. Proactive Secure Multiparty Computation with a Dishonest Majority
    Karim Eldefrawy, Rafail Ostrovsky, Sunoo Park, and Moti Yung
    In the 11th Conference on Security and Cryptography for Networks (SCN 2018).
11. SpaceMint: A Cryptocurrency Based on Proofs of Space [pdf] [ePrint]
    *Sunoo Park, Albert Kwon, Georg Fuchsbauer, Peter Gaži, Joël Alwen, and Krzysztof Pietrzak
    In the 22nd International Conference on Financial Cryptography and Data Security (Financial Crypto 2018).
12. Public Accountability vs. Secret Laws: Can They Coexist? [ePrint]
    Shafi Goldwasser and Sunoo Park
    In the 16th Workshop on Privacy in the Electronic Society (WPES) at CCS 2017.
13. Towards Secure Quadratic Voting [pdf] [ePrint]
    Sunoo Park and Ronald L. Rivest
    In Public Choice 2017.
14. How to Incentivize Data-Driven Collaboration Among Competing Parties [pdf] [ePrint] [arXiv]
    Pablo Daniel Azar, Shafi Goldwasser, and Sunoo Park
    In the 7th Innovations in Theoretical Computer Science conference (ITCS 2016).
15. Adaptively Secure Coin-Flipping, Revisited [pdf] [ePrint] [arXiv]
    Shafi Goldwasser, Yael Tauman Kalai, and Sunoo Park
    In the 42nd International Colloquium on Automata, Languages, and Programming (ICALP 2015).
16. Cryptographically Blinded Games: Leveraging Players' Limitations for Equilibria and Profit [pdf] [arXiv]
    Pavel Hubáček and Sunoo Park
    In the 15th ACM Conference on Economics and Computation (EC 2014).

sunoo at csail·mit·edu  (PGP key / fingerprint)