Wenting Zheng

I am an assistant professor in CMU's Computer Science Department. I am also a co-founder and chief scientist at Opaque Systems.

I am broadly interested in system security and applied cryptography. Recently, I've been fascinated with building practical systems for secure outsourced computation in the cloud, and secure collaborative computation among mutually distrusting parties. I believe that a combination of systems and advanced cryptography can not only make existing applications more secure, but also enable new applications.

Previously, I was a Ph.D. student in the UC Berkeley RISE Lab, where I was co-advised by Raluca Ada Popa and Ion Stoica. I received my bachelor and M.Eng. degrees at MIT. I have been very fortunate to work with a number of wonderful people. During my M.Eng., I was advised by Barbara Liskov and worked with Eddie Kohler and Sam Madden.

I was also a co-founder and an organizer for DARE, a diversity-focused program for matching undergraduates to research opportunities.


Fall 2022: Distributed Systems
Fall 2021: Cryptosystems: Theory and Practice


I'm fortunate to collaborate with a talented set of students!

Edward Chen (Ph.D., co-advised with Fraser Brown)
Andrew Park (Ph.D., co-advised with Elaine Shi)
Qi Pang (Ph.D.)
Siddharth Jayashankar (Ph.D., co-advised with Dimitrios Skarlatos)

Helen Mollering (visiting Ph.D.)
Jinhao Zhu (Masters)
Shreya Sharma (Masters)
William Seo (Undergradudate)
Trevor Leong (Undergraduate)


CostCO: An Automatic Cost Modeling Framework for Secure Multi-Party Computation. [Paper] [Extended version]
Vivian Fang, Lloyd Brown, William Lin, Wenting Zheng, Aurojit Panda, Raluca Ada Popa.
IEEE Euro S&P 2022
Distinguished Paper Award

Cerebro: A Platform for Multi-Party Cryptographic Collaborative Learning. [Paper] [Extended version]
Wenting Zheng, Ryan Deng, Weikeng Chen, Raluca Ada Popa, Aurojit Panda, Ion Stoica.
USENIX Security 2021

Delphi: A Cryptographic Inference Service for Neural Networks. [Paper] [Extended version]
Pratyush Mishra, Ryan Lehmkuhl, Akshayaram Srinivasan, Wenting Zheng, Raluca Ada Popa.
USENIX Security 2020

Helen: Maliciously Secure Coopetitive Learning for Linear Models. [Paper] [Extended version]
Wenting Zheng, Raluca Ada Popa, Joseph E. Gonzalez, Ion Stoica.
IEEE S&P 2019

DIZK: Distributing Zero Knowledge Proof Systems. [Paper] [Extended version]
Howard Wu, Wenting Zheng, Alessandro Chiesa, Raluca Ada Popa, Ion Stoica.
USENIX Security 2018

High Accuracy Approximation of Secure Multiparty Neural Network Training.
Daniel Ho, Xin Wang, Wenting Zheng, Joseph Gonzalez, Raluca Ada Popa, and Ion Stoica.
AISys 2017

MiniCrypt: Reconciling Encryption and Compression for Big Data Stores. [Paper] [Slides]
Wenting Zheng, Frank Li, Raluca Ada Popa, Ion Stoica, Rachit Agarwal.
EuroSys 2017

Opaque: An Oblivious and Encrypted Distributed Analytics Platform. [Paper] [Slides] [Code] [SparkSummit talk]
Wenting Zheng, Ankur Dave, Jethro Beekman, Raluca Ada Popa, Joseph Gonzalez, Ion Stoica.
NSDI 2017

SCL: Simplfying Distributed SDN Control Planes. [Paper]
Aurojit Panda, Wenting Zheng, Xiaohe Hu, Arvind Krishnamurthy, Scott Shenker.
NSDI 2017

Fast Databases with Fast Durability and Recovery through Multicore Parallelism [Paper] [Slides]
Wenting Zheng, Stephen Tu, Eddie Kohler, Barbara Liskov.
OSDI 2014

Speedy Transactions in Multicore In-Memory Databases [Paper]
Stephen Tu, Wenting Zheng, Eddie Kohler, Barbara Liskov, Samuel Madden.
SOSP 2013


M.Eng. thesis:

Fast Checkpoint and Recovery Techniques for an In-Memory Database [PDF]

Email: wenting [at] cmu [dot] edu