PG
P. Gomes Moreira
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Secure Multi-party Computation: A Survey
A Comparison of Secure Multi-party Computation Protocols and other Techniques for Computing on Encrypted Data
Secure multi-party computation (MPC) allows parties to compute on their secret inputs, without revealing them to each other. As an area of theoretical interest, many MPC protocol have been developed in the last four decades. They each present different characteristics and are classified under distinct categories depending on their generality, security assumptions, and functionality. More recently, MPC has also become an area of practical interest due to optimizations in performance of the protocols. In this paper, we compare MPC protocols and other techniques for computing on encrypted data, considering how their properties affect security, efficiency, usability, and functionality. We show that there is a trade-off between security and efficiency when different adversarial models are used, as well as a trade-off between efficiency and flexibility in specialized protocols.
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Secure multi-party computation (MPC) allows parties to compute on their secret inputs, without revealing them to each other. As an area of theoretical interest, many MPC protocol have been developed in the last four decades. They each present different characteristics and are classified under distinct categories depending on their generality, security assumptions, and functionality. More recently, MPC has also become an area of practical interest due to optimizations in performance of the protocols. In this paper, we compare MPC protocols and other techniques for computing on encrypted data, considering how their properties affect security, efficiency, usability, and functionality. We show that there is a trade-off between security and efficiency when different adversarial models are used, as well as a trade-off between efficiency and flexibility in specialized protocols.