Patent ID: 11888982
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. The method of claim 2, wherein the method further comprises:
sending, by the first network device, a second rekey request to the second network device for rekeying an SA when there is a change in the cryptographic suite associated with the first network device, wherein the second rekey request carries a first SPI and a new cryptographic suite associated with the first network device;
receiving, by the first network device, a second rekey response which carries a second SPI and a new cryptographic suite associated with the second network device when there is a change in the cryptographic suite associated with the second network device and the second network device selects a cryptographic suite in the cryptographic suite associated with the first network device as the cryptographic suite associated with the second network device;
the rekeying the SA, by the first network device, the SA is further performed according to the first SPI, the second SPI, and the selected cryptographic suite.