Disseminating additional data used for controlling access
US8015597B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2004 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Jul 29, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Issuing and disseminating a data about a credential includes having an entity issue authenticated data indicating that the credential has been revoked, causing the authenticated data to be stored in a first card of a first user, utilizing the first card for transferring the authenticated data to a first door, having the first door store information about the authenticated data, and having the first door rely on information about the authenticated data to deny access to the credential. The authenticated data may be authenticated by a digital signature and the first door may verify the digital signature. The digital signature may be a public-key digital signature. The public key for the digital signature may be associated with the credential. The digital signature may be a private-key digital signature. The credential and the first card may both belong to the first user. The credential may be stored in a second card different from the first card, and the first door may rely on information about the authenticated data by retrieving such information from storage. The authenticated data may be first stored in at least one other card different from the first card and the authenticated da…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.