I am a 3rd year PhD student in the computer science department at Stanford University, working with Dan Boneh and the applied cryptography research group. 

My research spans various topics in cryptography and security: proofs of storage, secure lotteries, blockchains, cryptocurrencies, secure computation, private database search (see Blind Seer), and applications of hardware security environments such as Intel SGX. 

In the past I have had affiliations with Columbia University, Cornell-Tech, the University of Pennsylvania, and,,the Weizmann Institute

I also advise several cryptocurrency projects. 
Twitter: @benafisch