Information management device to set expiration dates of bloom filters
US10965471B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2018 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | May 31, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, an information management device includes a Bloom filter generator configured to generate a Bloom filter based on information on a revoked certificate; a data distributor configured to send the Bloom filter to an authentication device, the authentication device authenticates a device with a certificate provided by the device; and an examiner configured to determine, when an examination request is received from the authentication device, whether an certificate designated by the examination request has been revoked based on revocation management information that contains information on the revoked certificate, and to send an examination result indicating whether the designated certificate has been revoked to the authentication device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.