US Patent 11182469 Application security authentication method, terminal and storage medium

An application security authentication method, including: step 202, acquiring an application file to be downloaded and extracting signature information from the application file; step 204, acquiring public key information contained in a multilevel key hierarchy, and acquiring public key information of the currently highest priority according to a priority order of the public key information; step 206, authenticating the signature information with the acquired public key information of the currently highest priority; and step 208, allowing the application file to be downloaded if an authentication of the signature information is passed.