Title: Verifiable Secret Sharing from Symmetric Key Cryptography with Improved Optimistic Complexity

Abstract: We propose verifiable secret sharing…

Title: Revisiting Simulation Extractability in the Updatable Setting

Abstract: We revisit the notion of Simulation Extractability (SE) for SNARKs in…

Title: The Landscape of Exact Round Complexity in Secure Multi-Party Computation

Abstract: Secure Multi-Party Computation (MPC) is a central problem…

Title: Concretely-Efficient Multi-Key Homomorphic Secret Sharing and Applications

Abstract: Homomorphic secret sharing (HSS) is a powerful…

Title: Black-Box Threshold Signing of Hash-Based Signatures is Impossible

Abstract: We show a general impossibility result that broadly rules out…