Compositional Security Definitions for Higher-Order Where Declassification

Explore a 19-minute conference talk from OOPSLA1 2023 that delves into compositional security definitions for higher-order where declassification. Learn about the challenges of providing formal guarantees for handling private data in higher-order programs and the innovative approach using logical relations to build a security model. Discover how the presented model addresses the issue of enforcing indistinguishability after relevant declassification occurs, offering enhanced security compared to previous lower-order definitions. Gain insights into intensional information-flow properties, where declassification, and their application in ensuring data privacy in complex programming environments.