In this episode of the Voices from DARPA podcast, we explore the portfolio of cryptography expert, privacy advocate, and DARPA program manager, Dr. Joshua Baron (https://www.darpa.mil/staff/dr-joshua-baron). Baron details the possibilities – and potential pitfalls – of technologies such as zero knowledge proofs and blockchains. He also provides a sneak peek into new research that will preserve one’s privacy by rapidly making complex computations on a mobile device.“I'm most interested in the national security community's relationship with the world,” said Baron. “When I talk about privacy issues, what we address [at DARPA] certainly impacts the Department of Defense community but also the larger American and even global communities.”