- You are subscribed to this talk through .
- You are watching this talk through .
- You are subscribed to this talk. (unsubscribe, watch)
- You are watching this talk. (unwatch, subscribe)
- You are not subscribed to this talk. (watch, subscribe)
Then we demonstrate a three-round protocol with guarantee of output delivery, which in general is harder than achieving fairness (since the latter allows the adversary to force a fair abort). We develop a new construction of a threshold fully homomorphic encryption scheme, with a new property that we call “flexible” ciphertexts. Roughly, our threshold encryption scheme allows parties to adapt flexible ciphertexts to the public keys of the non-aborting parties, which provides a way of handling aborts without adding any communication.
Fenghao is a postdoctoral research associate working at Maryland Cybersecurity Center, University of Maryland. My hosts are Professors Jonathan Katz, Elaine Shi and Dana Dachman-Soled. Before joining UMD, He received his PhD degree from Brown University under the supervision of Professor Anna Lysyanskaya. He received his bachelor degree from Department of Electrical Enginieering, National Taiwan University.
He is interested in information security with focus on cryptography. Particularly he tackles security challenges in various scenarios of cloud computing, and develop new techniques to handle these security issues, such as: how to compute on encrypted data, how to verify computation in outsourced environments, and how to protect memory/computation under physical attacks.