Patent ID: 11947673
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. The method of claim 9, wherein the header information further comprises the differential data encryption header information and the destination data encryption header information, and wherein before integrating the new version of the original data, the method further comprises:
extracting, using the update application, the destination data encryption header information from the header information, wherein the destination data encryption header information comprises message digest algorithm information of the differential encrypted data and encryption algorithm information used for the signature;
forwarding, using the update application and the CA, the message digest algorithm information and the encryption algorithm information to the TA;
verifying, using the TA, the signature of the differential encrypted data based on signature information; and
further integrating the new version of the original data based on the differential data and the old version of the original data when verification succeeds.