System, method, and program for information management

Patent metadata

Field	Value
Publication number	US-9065638-B2
Application number	US-201213572729-A
Country	US
Kind code	B2
Filing date	Aug 13, 2012
Priority date	Aug 17, 2011
Publication date	Jun 23, 2015
Grant date	Jun 23, 2015

Abstract

A system and method of decrypting is provided. The method includes grouping domain data of the domain for authorized parties, encrypting a group of leaves in the grouped data having a tree structure using a common key, generating first public data, obtaining a common key by decrypting the first public data using a secret key of a link creator and decrypt the groups using the common key and the secret key, generating a, propagating records, generating second public data by encrypting the table using a common key, obtaining a common key by decrypting the first public data and the second public data using a secret key and generating a view by decrypting data received from a method for the link creator using the common key obtained by decrypting the first public data and the second public data using the secret key.

First claim

We claim:

1. A computer-implemented system for providing a view of links between pieces of domain data having a tree structure in a plurality of domains stored in computers in accordance with given access permission, one or more of the computers comprising a processor for executing program instructions, the system comprising:
domain data stored on a tangible storage device;
a domain computer, a link creating computer, and a reference computer, connected together via a network;…

Assignees

• Kamijoh Kohichi
• Miyashita Hisashi
• Nakamura Hiroaki
• IBM

Inventors

• Kamijoh Kohichi
• Miyashita Hisashi
• Nakamura Hiroaki

Classifications

• H04L9/0836 Primary

  Electricity · mapped topic

• G06F21/6209

  Physics · mapped topic