别让 TEE 破坏你的 MPC：TEE 与门限签名结合的安全陷阱与最佳实践

Threshold signature schemes, a form of multi-party computation (MPC) that lets a set of parties sign together without any one of them holding the key, are increasingly deployed inside trusted execution environments (TEEs). The combination is intended to amplify security for sensitive computations: MPC distributes trust…