Security protection method and apparatus
US11564100B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2020 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | May 2, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/122
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A security protection method and an apparatus to implement security protection for a plurality of non-access stratum (NAS) connection links. The method includes determining, by a terminal, a first parameter, where the first parameter is used to indicate an access technology used to transmit a non-access stratum NAS message. The terminal can support at least two access technologies, and can separately maintain a corresponding NAS COUNT for each of the at least two access technologies. The method further includes performing, by the terminal, security protection on the NAS message based on the first parameter, a NAS key, and a NAS COUNT corresponding to an access technology used to transmit the NAS message. This application is applicable to a process of performing security protection on a NAS message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.