Program, classification method and system
US7814323B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2006 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Jun 11, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/6254
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.