Mihir Bellare (Theory Seminar)

Mihir Bellare (UCSD)
Monday, May 1, 2017, 2:00pm


Title: Cryptography in the Age of Mass Surveillance


We discuss a body of work that considers cryptographic security in the age of mass surveillance unveiled by the Snowden and FBI revelations. We discuss new threat vectors, craft models and definitions that capture them, give attacks violating security of some schemes, and then provide other, proven-secure schemes. Specifically we will discuss algorithm-substitution attacks, resistance to key exfiltration via big-key cryptography, subversion of randomness, subversion of public parameters and subversion of certificates. Primitives considered in this light include symmetric encryption, public-key encryption and zero-knowledge protocols. The talk touches on multiple papers, co-authors of which include Georg Fuchsbauer, Viet Tung Hoang, Joseph Jaeger, Daniel Kane, Kenny Paterson, Bertram Poettering, Phillip Rogaway, Alessandra Scafuro, Douglas Stebila.

Paper links:

Theory Seminar