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: The present disclosure describes methods, systems, and apparatuses for transmitting digital content to improve the success ratio of the transmission. The method may include: receiving a resource request transmitted from a first client terminal; searching in stored digital objects and stored certificate files for a first digital object and a first certificate file matching the resource request, respectively; and transmitting the first digital object and the first certificate file to the first client terminal to enable the first client terminal to decrypt the received digital object using the received first certificate file to obtain corresponding digital content.

Abstract: This application discloses methods, systems, and servers for digital right management. One such method may include the steps of: combining content of multiple digital files selected by a user into a new digital file; encrypting the new digital file and generating authorization information according to a key used in the encryption and information of a client where the user logs in; and transmitting the authorization information to the client to instruct the client to use the new digital file based on the authorization information. In some embodiments, contents of multiple digital files selected by a user may be combined into a new digital file, and authorization information for the new digital file may be transmitted to the client, thus achieving authorization for digital works from multiple sources.