1. A method for determining whether a player application is authorized to play protected content, comprising: reading a digital signature bundled with the player application from a predetermined memory location using a protection interface associated with the player application, wherein the digital signature comprises one or more file designations of a disk file and an image file comprising at least one memory block loaded from the disk file for execution; mapping, by the protection interface, the one or more file designations to one or more files associated with the player application to generate mapping information; and transmitting the mapping information from the protection interface to a verification application stored on a storage medium, wherein the verification application is configured to determine whether the player application is authorized to play the protected content if the one or more file designations match the one or more files based on the mapping information.