AUTHENTICATION METHOD AND AUTHENTICATION SYSTEM

Disclosed are an authentication method and an authentication system. The authentication method comprises: a client sends first-temporary-key allocation request information to a server; after verifying the allocation request information, the server generates first response information comprising a user key account, a first temporary key, and session strategy information, and sends the first response information to the client; the client sends a cloud service request information that is generated based on the first response information, to a cloud server, the cloud service request information carrying the user key account, the session strategy information, and a signature of the cloud service request information that is generated by using the first temporary key; and the cloud server authenticates, based on the user key account and the session strategy information, the signature of the cloud service request information, and sends second response information for responding to the cloud service request informatio