Certificate renewal in a certificate authority infrastructure
US7707406B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 5, 2003 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Feb 22, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/60
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system using digital certificates having overlapping validity intervals. The overlapping certificates can be used in a hierarchical certificate authorities network in order to obtain benefits such as to increase the usage of all the certificates in the certificate chain; reduce/eliminate the certificate updates/downloads to a large population; only replace the minimum number of certificates in the trust hierarchy to re-establish the certificate chain; reduce the complexity of maintaining certificate nesting in certificate generation process; reduce the risk of service interruption; and control the extent of older technology in circulation and to reduce the risk associated with older products being more susceptible to attack. The certificate renewal process of a preferred embodiment is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.