Packet verification method, device, and system
US11855888B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2022 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Oct 10, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This application provides a packet verification method, and the method includes: A first network device receives a BIER packet, where packet header information of the BIER packet includes a first keyed-hash message authentication code HMAC, and the first HMAC is used to verify whether the BIER packet is a valid BIER packet; determines a second HMAC based on a first key and first information in the packet header information, where the first information is used to indicate forwarding information of the BIER packet; determines whether the first HMAC is the same as the second HMAC; and when determining that the first HMAC is different from the second HMAC, determines that the BIER packet is an invalid BIER packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.