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Scalar product protocol and privacy preserving add to multiply protocol (PPAtMP) are two significant basic secure multiparty computation protocols. In this paper, we claim that the two protocols are equivalent to each other and we can achieve one based on the other with the same communication and computation complexity. Then, we propose Secure Two-party Mean Protocol, Secure Shared x ln x Protocol...
In real world, there are many important applications for the secret sharing with the quasi-threshold multipartite access structure. But there was still not a very efficient scheme proposed in the past. In this paper, we combine the multi-secret sharing and the quasi-threshold multipartite access structure, and present an efficient multi-secret sharing scheme with the quasi-threshold multipartite access...
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