Abstract: System for authorization and authentication comprises a server and at least one level of transit terminals. The server transmits digital content, server's identifier, and business pattern to the transit terminal. The transit terminal transmits to a lower level transit terminal the digital content, the server's identifier, the business pattern, and identifiers of respective transit terminals through which the digital content passes, and returns the above identifiers to the server. The server performs a match verification on the returned identifiers; if matched, the transit terminal is permitted to parse the business pattern and authorize a client to use the digital content based on privilege in the business pattern.

Abstract: A system for data task processing includes a master server, a client server, and a plurality of destination servers. The master server may be configured to receive a task assignment request from the client server, transmit the task corresponding to the task assignment request to the client server, and receive a processing result of the task from the client server. The client server may be configured to receive a task from the master server and parse the task to obtain task parameters of the task. The task parameters may include a type of the task. The client server may further be configured to transmit the task parameters to one of the destination servers according to the type of the task. The destination servers may be configured to process tasks of different types.