Jian Liu is a postdoctoral researcher in UC Berkeley, hosted by Prof. Dawn Song. He will join Zhejiang University as a ZJU100 Young Professor. Jian Liu obtained his PhD at Aalto University, Finland, advised by Prof. Asokan. His research interests include applied cryptography, blockchains and machine learning. He is interested in building real-world systems that are provably secure, easy to use and inexpensive to deploy.