Authentication of rekey messages in a communication system
US5185795A · kind A · utility
33Cited by
15References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1991 |
| Grant date | Feb 9, 1993 |
| Priority date | — |
| Expiry date | Feb 27, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/32
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of message authentication in an encrypted communication system with over-the-channel rekeying features the ability of a communication unit (107) to authenticate (1709) a rekeying message (701) from a key management controller (101) using a message number (1517A) comparison, thereby preventing outside interference from unauthorized rekeying message transmissions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.