Secure communication encryption and decryption mechanism in a wireless communication system
US11343672B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2020 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | May 10, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for secure communications between a master and a plurality of devices in a wireless communications network are provided. The method includes encrypting, on said master, downlink plaintext for multicast transmission to a plurality of devices over a wireless communications link utilizing a symmetric key encryption algorithm in accordance with a first counter value and a shared symmetric session key; and decrypting, on one of said devices, multicast downlink cyphertext received from said master over said wireless communications link utilizing a symmetric key decryption algorithm in accordance with a second counter value and said shared symmetric session key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.