Communication of numbered sequence packets using old and new cipher keys
US11399280B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2019 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Aug 21, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This application discloses a communications method. The method may include: receiving, by a receiving party, indication information sent by a first device, where the indication information is used to indicate at least one intermediate sequence number; receiving a data packet of the bearer sent by the first device; and skipping the at least one intermediate sequence number based on the indication information, deciphering, by using the old key, a data packet that is located on the bearer and whose sequence number is followed by the at least one intermediate sequence number, and deciphering, by using the new key, a data packet that is located on the bearer and whose sequence number follows the at least one intermediate sequence number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.