Authentication system, authentication method, attesting device, verification device, their programs, and recording medium
US8001384B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2006 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Feb 22, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3221
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A verification device stores verification information and first random information in a storage. The verification information depends upon contents of comparative information, and not upon an information volume of the comparative information. The verification device generates an authentication information generation factor using the first random information and transmits the factor to a proving device, which generates authentication information using the authentication information generation factor and held information and transmits the authentication information to the verification device. The authentication information depends upon contents of the authentication information generation factor and the held information, and not upon the information volume of the held information. A decision section of the verification device decides whether a predetermined relationship is established between the authentication information and the verification information and the first random information. Thereby, the verification device verifies the held information stored in the proving device is the same as the comparative information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.