Certificate revocation system
US6766450B2 · kind B2 · utility
91Cited by
17References
39Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2001 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | May 21, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3268
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of managing certificates in a communication system having a certifying authority and a directory. Preferably, the method begins by having the certifying authority generate certificates by digitally signing a given piece of data. At a later point time, the certifying authority may produce a string that proves whether a particular certificate is currently valid without also proving the validity of at least some other certificates. The technique obviates use of certification revocation lists communicated between the certifying authority and the directory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.