公开(公告)号：EP2051457A4

公开(公告)日：2013-04-03

申请号：EP07791489

申请日：2007-07-27

Applicant: IBM

Inventor： SHIMIZU SHUICHI ,  YASUDA TOMOARI ,  NAGATA SEIJI

IPC: H04L12/18 ,  H04L12/70

CPC classification number: H04L12/185

公开(公告)号：JP2009139990A

公开(公告)日：2009-06-25

申请号：JP2007312358

申请日：2007-12-03

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： YASUDA TOMOARI ,  NAKAYAMA KIYOTAKA ,  SARUWATARI KOJI

IPC: G06F21/24 ,  G09C1/00

CPC classification number: H04L63/0435 ,  H04L63/068

Abstract: PROBLEM TO BE SOLVED: To prevent information of an information processing apparatus, from being accessed in an unauthorized manner by loss or theft. SOLUTION: The information processor is provided with a storage device; a division part dividing data stored in the storage device into a predetermined first number of pieces of partial data of a reference number or more than this by a secret dispersion method, requiring the predetermined reference number of pieces of the partial data in the restoration of the data; a transmission part for transmitting at least one piece of the partial data among the first number of pieces of the divided partial data, to at least another information processor, and deleting them from the storage device; an accessing part for accessing at least one piece of the partial data from at least another information processor and storing them in the storage device, when the data are restored to the storage device; and a restoration part for restoring the data to the storage device, based on the reference number of pieces of the partial data, on the condition that the reference number of pieces of the partial data be stored in the storage device by the acquisition of the partial data. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了防止信息处理装置的信息以未经授权的方式被丢失或被盗窃而被访问。 信息处理器具有存储装置; 分割部分，将存储在存储装置中的数据分割成预定的第一数量的参考数量的部分数据，或者通过秘密分散方法超过该部分数据，需要在恢复中的预定的参考数量的部分数据 数据; 用于在所述划分的部分数据的所述第一数量的片段中发送所述部分数据中的至少一个片段的发送部分，至少另一信息处理器，并将其从所述存储装置中删除; 访问部件，用于当数据被还原到存储设备时，从至少另一个信息处理器访问至少一个部分数据并将它们存储在存储设备中; 以及恢复部件，用于基于所述部分数据的参考数量将数据恢复到所述存储装置，条件是所述部分数据的参考数量通过获取部分数据被存储在所述存储装置中 数据。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：CA2683286A1

公开(公告)日：2008-02-07

申请号：CA2683286

申请日：2007-07-27

Applicant: IBM

Inventor： YASUDA TOMOARI ,  NAGATA SEIJI ,  SHIMIZU SHUICHI

IPC: H04L12/70

Abstract: [PROBLEMS] To realize a scalable, highly reliable, and low-delay multicas t at a low cost. [MEANS FOR SOLVING PROBLEMS] Provided is a network system i ncluding M terminals each connected to a network. Each of the terminals incl udes: storage means which stores the M terminals including the one terminal while correlating them to N (N