Guaranteed Output Delivery with More than 1/3 of Malicious Corruption for Client Server MPC Protocols and Applications
摘要
Secure multiparty computation (MPC) is a powerful instrument for protecting data and processes in information systems. The computational security against the malicious adversary corrupting up to all n parties but one is possible, but the more strict assumption about the corruption threshold t results in more efficient protocols. The highly efficient framework of Dalskov, Escudero, and Nof (ACM CCS’22) allows to securely compute any circuit over an arbitrary ring for the case $$t