Welcome to the resource topic for 2010/449
Title:
Oblivious and Fair Server-Aided Two-Party Computation
Authors: Amir Herzberg, Haya Shulman
Abstract:We show efficient, practical (server-aided) secure two-party computation protocols ensuring privacy, correctness and fairness in the presence of malicious (Byzantine) faults. Our requirements from the server are modest: to ensure privacy and correctness, we only assume offline set-up prior to protocol execution; and to also ensure fairness, we further assume a trusted-decryption service, providing decryption service using known public key. The fairness-ensuring protocol is optimistic, i.e., the decryption service is invoked only in case of faults. Both assumptions are feasible in practice and formally presented in the hybrid model. The resulting protocols may be sufficiently efficient, to allow deployment, in particular for financial applications.
ePrint: https://eprint.iacr.org/2010/449
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