发明授权
- 专利标题: Encryption key management program, data management system
- 专利标题(中): 加密密钥管理程序,数据管理系统
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申请号: US13944946申请日: 2013-07-18
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公开(公告)号: US09088557B2公开(公告)日: 2015-07-21
- 发明人: Makoto Aoyagi , Minoru Fujimoto
- 申请人: HITACHI SOLUTIONS, LTD.
- 申请人地址: JP Tokyo
- 专利权人: Hitachi Solutions, Ltd.
- 当前专利权人: Hitachi Solutions, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Mattingly & Malur, PC
- 优先权: JP2012-280469 20121225
- 主分类号: H04L29/06
- IPC分类号: H04L29/06 ; H04L9/08
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.
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