Program, classification method and system

A system and method classifies multiple pieces of private data owned by multiple entities according to data type. Each of the entities has an encryption key. A representative entity is selected that is representative of the entities owning data of the type. Data of each of the representative entity...

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Bibliographic Details
Main Authors SAKUMA JUN, URAMOTO NAOHIKO
Format Patent
LanguageEnglish
Published 12.10.2010
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:A system and method classifies multiple pieces of private data owned by multiple entities according to data type. Each of the entities has an encryption key. A representative entity is selected that is representative of the entities owning data of the type. Data of each of the representative entity and a target entity is encrypted and the encrypted data is exchanged between the entities. Each piece of the encrypted data that the target entity has obtained is re-encrypted by using its own encryption key to obtain data 1, and the encrypted data that the representative entity has obtained is re-encrypted by using its own encryption key to obtain data 2. If data 1 of the representative entity matches data 2, it is determined that the representative entity and the target entity have data of an identical type.
Bibliography:Application Number: US20060443624