Patent ID: 8091137
Filing Date: 2012-01-03
Classification: H04L

Abstract:
1. A method of transferring a data object between devices, wherein the data object is associated with controlling a playability of a digital content object, the method comprising: storing a playable copy of the digital content object at a first device, wherein the digital content object is encrypted with a first key; receiving at the first device a second key from a second device; decrypting the digital content object using the first key; encrypting the decrypted digital content object using the second key to obtain the data object; sending the data object associated with the digital content object to the second device; and disabling the playable copy of the digital content object at the first device, such that only an authorized, playable copy of the digital content object is stored on the first device or the second device at any given time before, during and after sending the data object.