David Cash

David Cash is a Professor in the Department of Computer Science at the University of Chicago. His research focuses on applied and theoretical cryptography, computer security, and theoretical computer science. He joined UChicago in 2018 and has held roles such as teaching courses in cryptography, computer security, and discrete mathematics. Cash has advised numerous PhD and master’s students, including Sam Everett, Alexander Hoover, and Jesse Stern. His work includes constructing quantum-secure cryptography systems, analyzing encrypted data navigation, and foundational theoretical results. He has received notable awards like the 2025 Quantrell Award for Teaching and multiple Best Paper awards at Eurocrypt. Cash's research also explores secure computation, oblivious RAM, and cryptographic agility. His affiliations include the Systems Group at UChicago, focusing on interdisciplinary systems research.

Education details are not explicitly provided in the text. However, his career trajectory suggests advanced degrees in computer science or related fields. His teaching spans undergraduate and graduate courses, emphasizing both theoretical foundations (e.g., discrete mathematics) and applied topics like cryptocurrencies and secure systems. Cash actively engages in academic service, including organizing conferences and reviewing research. His work bridges theoretical insights with practical applications, addressing modern computational security challenges.

His research contributions span cryptographic protocols, secure data structures, and privacy-preserving technologies. Notable projects include work on searchable encryption, leakage-abuse attacks, and cryptographic systems resilient to quantum computing. Cash collaborates with institutions like Rutgers University and has mentored postdoctoral researchers such as Alexander Hoover. His grants include NSF CAREER awards and Simons Institute fellowships, supporting research in secure outsourcing and cryptographic data protection.