Xiong (Leo) Fan

PhD Candidate, Cornell University

Curriculum Vitae (updated September, 2018)

Office: 441 Gates Hall
    Cornell University, Ithaca, NY
Email: xfan at cs dot cornell dot edu

I am a fourth year graduate student in the Computer Science department at Cornell University. My advisor is Prof. Elaine Shi.

I spent the summer of 2017 interning in the Cryptography Research Group at IBM T. J. Watson Research Center, the summer of 2016 working with Dr. Vladimir Kolesnikov at Bell Labs, and the summer of 2015 with Dr. Juan Garay and Dr. Payman Mohassel at Yahoo Labs.

Research Interests: Cryptography and Security.


  1. Proxy Re-Encryption and Re-Signatures from Lattices
    Xiong Fan and Feng-Hao Liu.
    International Conference on Applied Cryptography and Network Security (ACNS 2019). [paper]
  2. FE for Inner Products and Its Application to Decentralized ABE
    Zhedong Wang, Xiong Fan and Feng-Hao Liu.
    International Conference on Practice and Theory of Public Key Cryptography (PKC 2019). [paper]
  3. Symbolic Proofs for Lattice-Based Cryptography
    Gilles Barthe, Xiong Fan, Joshua Gancher, Benjamin Grégoire, Charlie Jacomme and Elaine Shi.
    ACM Conference on Computer and Communications Security (CCS 2018). [paper, code]
  4. Making Public Key Functional Encryption Function Private, Distributively
    Xiong Fan and Qiang Tang.
    International Conference on Practice and Theory of Public Key Cryptography (PKC 2018). [paper]
  5. Compact Inner Product Encryption from LWE
    Zhedong Wang, Xiong Fan and Mingsheng Wang.
    International Conference on Information and Communications Security (ICICS 2017). [paper]
  6. Hashing Garbled Circuits for Free
    Xiong Fan, Chaya Ganesh and Vladimir Kolesnikov.
    Annual International Conference on the Theory and Applications of Cryptographic Techniques. (EUROCRYPT 2017). [paper]
  7. Deniable Attribute Based Encryption for Branching Programs from LWE
    Daniel Apon, Xiong Fan and Feng-Hao Liu.
    Theory of Cryptography Conference (TCC 2016). [paper]


  • Attribute-Based Encryption for RAMs from LWE
    Prabhanjan Ananth, Xiong Fan and Elaine Shi. [paper]
  • Puncturable Signatures and Applications in Proof-of-Stake Blockchain
    Xinyu Li, Jing Xu, Xiong Fan, Yuchen Wang, Zhenfeng Zhang.
  • IPDL: A Probabilistic Dataflow Logic for Cryptography
    Xiong Fan, Joshua Gancher, Greg Morrisett, Elaine Shi, Kristina Sojakova. [paper, code]