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 for the request parameters, encrypt it, and send it together with the API request to the server. The server uses the same mechanism to calculate 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 details on how to calculate the signature, see: Signature method.