Abstract: The method for implementing security, applicable to a first device, includes: acquiring an authorization certification of a first network element, wherein the authorization certification is used to verify whether the first network element is authorized to receive data, the data being originated from at least one second device associated with the first device; and the authorization certification comprises a first digital signature; and determining that the first network element is authorized to receive the data from the at least one second device based on a successful verification on the authorization certification based on the first digital signature.

Abstract: A terminal device includes a processor and a memory. The memory is configured to store a computer program, the processor is configured to invoke and execute the computer program stored in the memory, to cause the terminal device to perform: acquiring an authorization credential of a first network element, where the authorization credential is used by the terminal device to verify whether a transmission of sensing data is authorized, and the authorization credential comprises a first digital signature; and authorizing the transmission of the sensing data, in a case where the authorization credential is verified successfully based on the first digital signature.