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SECRET AGGREGATION RANK SYSTEM, SECURE COMPUTING DEVICE, SECRET AGGREGATION RANK METHOD, AND PROGRAM

机译:秘密聚合等级系统,安全计算设备,秘密聚合等级方法和程序

摘要

An aggregate order is efficiently obtained while keeping confidentiality. An inverse permutating part (12) generates a share of a vector representing an inversely permutated cross tabulation by applying inverse permutation to a cross tabulation of a table, the inverse permutation being a permutation which moves elements so that, when the table is grouped based on a key attribute, last elements of each group are sequentially arranged from beginning. A partial summing part (13) computes a prefix sum from the inversely permutated cross tabulation. The order computing part (14) generates a share of a vector representing ascending order within a group from a result of the prefix sum.
机译:在保密的同时有效地获得总阶数。 逆置换部分(12)通过将逆置换施加到表的交叉表格,产生代表反向置换的交叉标记的载体的共享,其逆置换是移动元件的置换,使得当表被分组时 一个关键属性,每个组的最后一个元素从开始顺序排列。 部分求和部分(13)计算从反向置换的交叉标记的前缀和。 订单计算部分(14)从前缀SUM的结果生成代表组内升序的向量的共享。

著录项

  • 公开/公告号EP3783589A4

    专利类型

  • 公开/公告日2022-01-05

    原文格式PDF

  • 申请/专利权人 NIPPON TELEGRAPH AND TELEPHONE CORPORATION;

    申请/专利号EP20190788341

  • 发明设计人 IKARASHI DAI;

    申请日2019-04-17

  • 分类号G09C1;

  • 国家 EP

  • 入库时间 2022-08-24 23:13:51

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