Volcano Engine OpenAPI, in order to ensure the legitimacy of the requester's identity and prevent malicious tampering during transmission, requires the requester to compute a hash value of the request parameters, encrypt it, and send it together with the API request to the server. The server uses the same mechanism to compute the signature for the received request and compares it with the signature provided by the requester. If the signature fails verification, the request will be rejected.
For specific instructions on calculating the signature, see: Signature method.