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1. 发明申请

US20160299924A1 SEARCH SYSTEM 有权
标题翻译：搜索系统
公开(公告)号：US20160299924A1
公开(公告)日：2016-10-13
申请号：US15051808
申请日：2016-02-24
申请人： Hitachi Solutions, Ltd.
发明人： Minoru FUJIMOTO , Yoshiki SAMESHIMA
IPC分类号： G06F17/30 , H04L9/32 , G06F12/14
CPC分类号： G06F17/30312 , G06F12/1408 , G06F17/30011 , G06F17/30424 , G06F17/30477 , G06F17/30864 , G06F21/6227 , G06F2212/1052 , G06F2221/2107 , H04L9/0822 , H04L9/3247
摘要： A search system includes a storage device and a search server. The storage device stores an index database storing an index encrypted with an index key and the index key encrypted with a user key and associated with the encrypted index and stores a document database storing a document encrypted with a document key and the document key encrypted with the user key and associated with the encrypted document. The search server extracts a term for search from a requested search query, decrypts the encrypted index key with a user key which belongs to a user requesting the search query, encrypts the extracted term with the decrypted index key without storing the decrypted index key in a non-transitory storage device, searches the index database with the index encrypted using the encrypted first term, and sends a search result to a terminal.
摘要翻译：搜索系统包括存储设备和搜索服务器。存储装置存储索引数据库，该索引数据库存储用索引关键字加密的索引和用用户密钥加密并与加密的索引相关联的索引密钥，并存储存储用文档密钥加密的文档的文档数据库，用户密钥并与加密文档相关联。搜索服务器从所请求的搜索查询中提取用于搜索的术语，用属于请求搜索查询的用户的用户密钥对加密的索引密钥进行解密，使用解密的索引密钥加密所提取的项，而不将解密的索引密钥存储在非暂时性存储设备，使用加密的第一项加密的索引搜索索引数据库，并将搜索结果发送到终端。

2. 发明申请

US20140181514A1 ENCRYPTION KEY MANAGEMENT PROGRAM, DATA MANAGEMENT SYSTEM 有权
标题翻译：加密密钥管理程序，数据管理系统
公开(公告)号：US20140181514A1
公开(公告)日：2014-06-26
申请号：US13944946
申请日：2013-07-18
申请人： Hitachi Solutions, Ltd.
发明人： Makoto AOYAGI , Minoru FUJIMOTO
IPC分类号： H04L29/06
CPC分类号： H04L63/08 , H04L9/0833 , H04L9/0869 , H04L63/065 , H04L2463/062
摘要： An objective of the present invention is to ensure security of the file sharing function provided by cloud storages without significantly decreasing the convenience of cloud storages. The encryption key management program according to the present invention encrypts, using authentication information of a user, a group shared key shared in a user group and stores it as an encrypted group shared key. The encryption key management program, upon receiving a request from a user, sends the encrypted group shared key corresponding to the requesting user.
摘要翻译：本发明的目的是确保云存储提供的文件共享功能的安全性，而不显着降低云存储的便利性。根据本发明的加密密钥管理程序使用用户的认证信息来加密在用户组中共享的组共享密钥，并将其存储为加密组共享密钥。加密密钥管理程序在接收到来自用户的请求时发送与请求用户对应的加密组共享密钥。

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