Attribute certificate validation method and device
US7840804B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2006 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Jun 27, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/123
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
To verify a qualification on a network without notifying verifier privacy information that can identify as a subject of a public key certificate while keeping safety of the public key infrastructure technology. An attribute certificate validation method wherein by preparing an environment in which only an attribute certificate validation device operated by a trusted third party can access a user's public key certificate, the verifier transmits attribute certificate and signed data received from a user having presented a qualification, to the attribute certificate validation device to thereby request the device to make a check to confirm authenticity of the holder of the attribute certificate, thereby preventing the public key certificate (particularly, privacy information contained in the public key certificate) of the user from being passed to the verifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.