专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2008234597A Data processor and program 有权
标题翻译：数据处理器和程序
公开(公告)号：JP2008234597A
公开(公告)日：2008-10-02
申请号：JP2007077355
申请日：2007-03-23
申请人： Toshiba Corp , Toshiba Solutions Corp , 東芝ソリューション株式会社 , 株式会社東芝
发明人： MATSUKAWA SHINICHI , HOSAKA NORIKAZU , NOGUCHI MASANORI , KAIYA KAZUHIRO , AKIMOTO NAOTO , KUTSUZAWA AKITA , TAGUCHI MASAHIRO
IPC分类号： G06F21/24 , H04L9/08
CPC分类号： H04L9/0891 , H04L9/085 , H04L2209/60
摘要： PROBLEM TO BE SOLVED: To make it difficult to specify recording positions of distributed information stored in a storage device having no protection area. SOLUTION: This data processor 10 updates and writes a plurality of pieces of distributed information D1-Dn generated from secret information to be stored in a data storage device 20 to which access is not restricted, and is provided with a secret distribution processing part 12-2 which generates a plurality of pieces of distributed information to be updated this time from the secret information to be stored this time based on a threshold secret distribution method and a distributed information management part 12-3 which selects the recording positions of the respective piece of distributed information to be updated this time so that the less number of the plurality of distributed information to be updated this time than a threshold is left and writes the respective pieces of distributed information to be updated this time in the data storage device 20 based on the selected recording positions. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：难以指定存储在没有保护区域的存储装置中的分布式信息的记录位置。解决方案：该数据处理器10更新并写入从秘密信息生成的多条分散信息D1-Dn，以存储在不限制访问的数据存储装置20中，并提供秘密分发处理该部分12-2根据阈值秘密分配方法，从本次存储的秘密信息中生成多条分散信息，该分散信息将根据阈值秘密分配方法和分布式信息管理部分12-3进行更新，分发信息管理部分12-3选择此次要更新的各条分布式信息被保留，使得此次要更新的多个分布式信息的数量少于阈值，并将此时要更新的各条分散信息写入数据存储装置20 基于所选择的记录位置。版权所有（C）2009，JPO＆INPIT

IPRDB

热门服务

关于我们

友情链接

联系方式