System and method for processing DRM-enabled files

Details System and method for processing DRM-enabled files System and method for processing DRM-enabled files

2006-08-11

2010-06-29

Nguyen, Minh Dieu (Department: 2438)

Information security

Prevention of unauthorized use of data including prevention...

C705S057000, C705S059000

Reexamination Certificate

active

07748044

ABSTRACT:
A system for processing DRM-enabled files includes a playback device and a software module. The software module includes a license-downloading module, a license-transforming module, a decryption module and an encryption module. The license-downloading module is configured to download a first license from a license server to a computer. The license-transforming module is configured to convert the first license to a second license. The decryption module is configured to decrypt a first DRM-enabled file of the computer into a raw file with a first decryption key. The encryption module is configured to encrypt the raw file into a second DRM-enabled file with a second encryption key. The playback device is configured to decrypt the second DRM-enabled file with the second license. The method of the system is also provided.

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