Silentflow: Leveraging Trusted Execution for Resource-Limited MPC Via Hardware-Algorithm Co-Design

Secure Multi-Party Computation MPC offers a practical foundation for privacy-preserving machine learning at the edge, with MPC commonly employed to support nonlinear operations. These MPC protocols fundamentally rely on Oblivious Transfer OT, particularly Correlated OT COT, to generate correlated...

Quantum Protocols for Rabin Oblivious Transfer

Rabin oblivious transfer is the cryptographic task where Alice wishes to receive a bit from Bob but it may get lost with probability 1/2. In this work, we provide protocol designs which yield quantum protocols with improved security. Moreover, we provide a constant lower bound on any quantum...

GHSA-7F6P-PHW2-8253 Taurus multi-party-sig has OT-based ECDSA protocol implementation flaws

Coinbase researchers reported 2 security issues in our implementation of the oblivious transfer OT based protocol DKLS: 1. Secret share recovery attack If the base OT setup of the protocol is reused for another execution of the OT extension, then a malicious participant can extract a bit of the...