Formation of rekey messages in a communication system
US5164986A · kind A · utility
23Cited by
14References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1991 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Feb 27, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Formation and sending of rekeying messages (305, 415, 515, and 605) in an encrypted communication system with over-the-channel rekeying of communication units is performed by a KMC, key management controller (101). The KMC (101) forms messages to provide new keys (1541), zeroization information (1549), and key indexing information (1543) to communication units (107), and to provide keyloader upload data (1563). Acknowledgments and rekey requests are also handled between the KMC (101) and communication units (107).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.