Shai Halevi has a PhD in Computer Science from MIT (1997), and he is a research staff member in the Cryptography group at IBM T.J. Watson Research Center. Shai's research covers most aspects of cryptography: from public-key to symmetric cryptography, both constructions and cryptanalysis, ranging from the very abstract to the very applied. In recent years, Shai's work has focused on homomorphic encryption, multilinear maps, obfuscation, and related technologies. He is developing HElib, an open-source library implementing homomorphic encryption. Shai is a board member of the International Association for Cryptologic Research and chairs the steering committee of the Theoretical Cryptography Conference (TCC). He served as a program chair for CRYPTO 2009, a co-chair for TCC 2006, and as a program committee member for many other conferences in cryptography. In his spare time, Shai maintains an open source Web application for submissions and reviews of papers for conferences.