To ensure the legitimacy of the requester's identity and prevent malicious tampering during transmission, the Volcano Engine OpenAPI signature mechanism requires the requester to calculate a hash value of the request parameters, encrypt it, and send it to the server along with the API request. The server will use the same mechanism to calculate the signature for the received request and compare it with the signature provided by the requester. If the signature fails verification, the request will be rejected.
For details on how to calculate the signature, see Signature method.