Jiaheng Zhang

I am a third-year Ph.D. candidate in Computer Science at UC Berkeley, where I am very fortunate to be advised by Prof. Dawn Song. I also work closely with Prof. Yupeng Zhang. And I am a member of RISE Lab, Initiative for Cryptocurrencies&Contracts Lab(IC3) and Berkeley AI Research(BAIR).

My research interests lie in computer security and cryptography, especially zero-knowledge proofs and their applications on blockchain and machine learning models.

Prior to coming to Berkeley, I received my Bachelor's degree in ACM Honors Class of Shanghai Jiao Tong University, where I worked under the supervision of Prof. Xiaotie Deng. During my undergraduate, I was also a research intern at Cornell, advised by Prof. Elaine Shi.

I had planned to be a research intern in Calibra Team at Facebook, working with Payman Mohassel and Kostas Chalkias this summer but defered to 2021 because of COVID-19.

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Doubly Efficient Interactive Proofs for General Arithmetic Circuits with Linear Prover Time [pdf]
Jiaheng Zhang, Weijie Wang, Yinuo Zhang, Yupeng Zhang
In submission

Zero Knowledge Proofs for Decision Tree Predictions and Accuracy [pdf]
Jiaheng Zhang, Zhiyong Fang, Yupeng Zhang, Dawn Song
Accepted by The ACM Conference on Computer and Communications Security(CCS), 2020

Transparent Polynomial Delegation and Its Applications to Zero Knowledge Proof [pdf] [video] [code]
Jiaheng Zhang*, Tiancheng Xie*, Yupeng Zhang, Dawn Song
IEEE Symposium on Security and Privacy (S&P), 2020

Libra: Succinct Zero-Knowledge Proofs with Optimal Prover Computation [pdf] [video] [code]
Tiancheng Xie*, Jiaheng Zhang*, Yupeng Zhang, Charalampos Papamanthou, Dawn Song
Annual International Cryptology Conference (CRYPTO), 2019

Searching for Cryptogenography Upper Bounds via Sum of Square Programming [pdf]
Dominik Scheder*, Shuyang Tang*, Jiaheng Zhang*
The 30th International Symposium on Algorithms and Computation (ISAAC), 2019

Libra: Succinct Zero-Knowledge Proofs with Optimal Prover Computation [Hacking, Distributed] [Medium]