Abstract: 

Ever since its inception, the theory of quantum computing has come apace over the decades, leading to several possible interesting applications. This has in turn led to a paradigm shift in the field of cryptography, where such computers present challenges for proving security of various cryptographic systems. Resilience against quantum enabled adversaries relies on newer hardness assumptions that withstand quantum attacks, and newer analysis of cryptographic systems where reasoning and assumptions hold against quantum computers. I will discuss some of my work in this area. I will also discuss how quantum computers can in turn enable interesting cryptography, and some of my efforts in this direction, centered around the notion of uncloneability.