记录阅读论文的笔记. 摘要 总结: (1)CRYPTO 2019:The Communication Complexity of Threshold Private Set Intersection-2019:解读提出任何阈值PSI得通信复杂度为\(\Omega(T)\):基于FHE的两方阈值PSI通信复杂度为\(O(T)\),但计算消耗很大么:基于GC的了:两方阈值PSI得通信复杂度为\(O(T^3)\),并给出了一个通信复杂度为\(O(T^2)\)的基于AHE的两方阈值PSI协议. (2)本…
本文记录阅读该论文的笔记. 本文基于阈值加法同态加密方案提出了一个新的允许\(N\)方检查其输入集的交集是否大于\(n-t\)的IPSI方案,该协议的通信复杂度为\(O(Nt^2)\). 注意:\(N\)指的是多少个参与方.\(n\)是输入集的大小.\(t\)是预先设定的阈值,也是阈值. 该方案基于The Communication Complexity of Threshold Private Set Intersection-2019:解读进行的改进. 该协议可以用于各方知道交集很大,但不知…
Given two lists of closed intervals, each list of intervals is pairwise disjoint and in sorted order. Return the intersection of these two interval lists. (Formally, a closed interval [a, b] (with a <= b) denotes the set of real numbers x with a <=…
hbase 是什么? Apache HBase is an open-source, distributed, versioned, non-relational database modeled after Google's Bigtable: A Distributed Storage System for Structured Data by Chang et al. Just as Bigtable leverages the distributed data storage provi…
Question1:如何判断两个矩形是否有重叠区域? Answer(java): public boolean checkCross(Rectangle m, Rectangle n) { //求出m,n矩形的重心 Point m_core = new Point(m.getLeft().getX() + m.getLength()/ 2, m.getLeft().getY() + m.getWidth()/ 2); Point n_core = new Point(n.getLeft().ge…