Key distribution communication system
US5150408A · kind A · utility
32Cited by
10References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1991 |
| Grant date | Sep 22, 1992 |
| Priority date | — |
| Expiry date | Feb 27, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This method of key distribution locates (401,501) an individual communication unit (107) within an encrypted communication system with over-the-channel rekeying and then rekeys (415, 515) the unit. The method uses a key management controller (101) to manage and distribute keys (1541) and handle acknowledgments that are either immediate or delayed from receipt of the rekeying message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.