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

Claim 29:
30. The network device of claim 28, wherein the first rekey response carries a no proposal chosen notification when there is a change in the cryptographic suite associated with the second network device;
wherein the at least one processor further executes the instructions to:
receive a second rekey request from the first network device for rekeying the SA carrying the first SPI and the cryptographic suite associated with the first network device;
send a second rekey response which carries another no proposal chosen notification to indicate that there is no matching cryptographic suite present in the cryptographic suite associated with the first network device carried in the second rekey request;
negotiate with the first network device until a negotiated cryptographic suite is obtained; and
rekey the SA further according to the negotiated cryptographic suite.