Place holder of picture of Tiancheng Xie

Tiancheng Xie

Co-founder and CTO at Polyhedra Network

polyhedra
Contact

Email :
For academic: tianc.x@berkeley.edu
(not frequently checked) For business: tc@polyhedra.network

About

I earned my Ph.D. from the UC Berkeley security group, under the guidance of Dawn Song. My BEng in Computer Science was obtained from the ACM Class at Shanghai Jiao Tong University. My research primarily revolves around cryptography and algorithms.

I'm currently the Co-founder and CTO at Polyhedra Network, I am dedicated to the development of state-of-the-art zero-knowledge protocols for enhancing blockchain interoperability. Our flagship project, zkBridge, provides a pioneering cross-chain infrastructure solution, promoting trustless and efficient interoperability between layer-1 and layer-2 networks.

Join Our Team at Polyhedra Network

We're looking for innovative minds to join us in pioneering the future of blockchain and blockchain interoperability. If you have a passion for blockchain technology, cryptography, and are ready to tackle challenging problems, we invite you to apply. For detailed job descriptions, visit our job listings. To apply, simply send your resume and cover letter to career@polyhedra.network.

中文版

Publications

Can We Overcome the n log n Barrier for Oblivious Sorting? [eprint]
Weikai Lin, Elaine Shi, and Tiancheng Xie
SODA 2018 Undergraduate research

Libra: Succinct Zero-Knowledge Proofs with Optimal Prover Computation [eprint]
Tiancheng Xie*, Jiaheng Zhang* , Yupeng Zhang, Charalampos Papamanthou and Dawn Song; * indicates equal contribution
CRYPTO 2019

Transparent Polynomial Delegation and Its Applications to Zero Knowledge Proof [eprint]
Jiaheng Zhang*, Tiancheng Xie*, Yupeng Zhang, and Dawn Song; * indicates equal contribution
S&P 2020

Ligero++: A New Optimized Sublinear IOP [eprint]
Rishabh Bhadauria, Zhiyong Fang, Carmit Hazay, Muthuramakrishnan Venkitasubramaniam, Tiancheng Xie, Yupeng Zhang; Alphabetical order
CCS 2020

Polynomial Commitment with a One-to-Many Prover and Applications
Jiaheng Zhang* , Tiancheng Xie*, ThangHoang, Yupeng Zhang and Elaine Shi; * indicates equal contribution
USENIX Security 2022

Updatable Private Set Intersection
Saikrishna Badrinarayanan and Peihan Miao and Tiancheng Xie ; Alphabetical order
PETS 2022

Orion: Zero Knowledge Proof with Linear Prover Time [ code , paper ]
Tiancheng Xie, Yupeng Zhang, Dawn Song
CRYPTO 2022

zkBridge: Trustless Cross-chain Bridges Made Practical [ paper ]
Tiancheng Xie, Jiaheng Zhang, Zerui Cheng, Fan Zhang, Yupeng Zhang, Yongzheng Jia, Dan Boneh, Dawn Song
CCS 2023

Pianist: Scalable zkRollups via Fully Distributed Zero-Knowledge Proofs [ paper ]
Tianyi Liu, Tiancheng Xie, Jiaheng Zhang, Dawn Song, Yupeng Zhang
S&P 2023