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在半诚实模型下,利用安全点积协议设计出一个保护私有信息的向量相等性判定协议.基于保护私有信息的向量相等性判定协议设计出保护私有信息的两条直线上动点距离判定协议和n维空间中保护私有信息的两条直线上动点距离判定协议.对协议的正确性和安全性进行了分析.最后提出解决保护私有信息的动点距离判定问题的一般性解决方案.
In the semi-honest model, a vector equivalence decision protocol for private information protection is designed by using the secure dot product protocol. Based on the vector equality decision protocol for private information protection, two linear upward moving-point distance decision protocols for protecting private information and This paper analyzes the correctness and security of the agreement between two straight line upper moving point in the n-dimensional space to protect private information.Finally, a general solution to solve the moving point distance decision problem of protecting private information is proposed.