SMT-Boosted Security Types and Correctness for Low-Level MPC

Secure Multi-Party Computation MPC is an important enabling technology for data privacy in modern distributed applications. We develop a new Hoare logic and type theory to automatically enforce correctness, confidentiality, and integrity properties of protocols written in the Prelude/Overture...

AgentFlow: A Flow-Centric Policy Language and Framework for Securing LLM Agent Systems

LLM agents increasingly read untrusted content, invoke external tools, access private data, and delegate work to other agents. Harm often arises not from a single unsafe action but from the flow of sensitive data across a sequence of otherwise plausible steps. We present AgentFlow, a flow-centric...