Research and development of inter-organizational distributed file management system with the abolition rights by self convenience

2014 Fiscal Year Final Research Report

• Project/Area Number: 24300025
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Computer system/Network
• Research Institution: Hiroshima University
• Principal Investigator: NISHIMURA Kouji 広島大学, 情報メディア教育研究センター, 教授 (90263673)
• Co-Investigator(Kenkyū-buntansha): KONDO Toru 広島大学, 情報メディア教育研究センター, 准教授 (90437575) ; TASHIMA Koichi 広島大学, 情報メディア教育研究センター, 助教 (50325205) ; OHIGASHI Toshihiro 広島大学, 情報メディア教育研究センター, 助教 (80508127) ; OKAMURA Koji 九州大学, 情報基盤研究開発センター, 教授 (70252830) ; AMANO Hirofumi 九州大学, 情報基盤研究開発センター, 准教授 (80231992) ; KASHIWAZAKI Hiroki 大阪大学, 情報推進機構, 助教 (80422004)
• Co-Investigator(Renkei-kenkyūsha): AIBARA Reiji 広島大学, 情報メディア教育研究センター, 教授 (50184023) ; KISHIBA Seigo 広島大学, 情報メディア教育研究センター, 助教 (30274137)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 秘密分散法 / 分散ファイル管理システム / シングルサインオン / 認証フェデレーション / ストリーム暗号 / 処理委託

Outline of Final Research Achievements

In this study, we developed the prototype system to store important information of organizations. This system is operated in the organizations which have similar security policy and federated each other by some contract. This system divides the information into several shares which are redundant and distributable form by using Secret Sharing Scheme and stores these shares among the federated systems.
We proposed the management techniques not to compromise redundancy and dispersity, even if some organization wants to leave from the federation by the convenience. We also proposed and evaluated the secure outsourcing scheme of Secret Sharing Scheme for cloud storage services and confirmed the effectiveness of our proposal.

Free Research Field

情報工学