Patent ID: 6389538
Filing Date: 2002-05-14
Classification: G06F,G06Q,H04L,H04W

Abstract:
A digital content data player for playing digital content data stored on a storage device and for providing usage information related to the digital content to a remote site, said data player comprising:an interface for connecting with a storage device; a receiver for receiving previously encrypted digital content data which has been encrypted with a first encrypting key, and the receiver receiving a from a clearing house an encrypted first decrypting key which has been encrypted with an encrypting key from the digital content player; a tamper resistant environment for decrypting the first decrypting key with a decrypting key from the digital content player, wherein the tamper resistant environment forming reencrypted digital content data by reencrypting the digital content data with a locally generated digital content player encrypting key, wherein the previously encrypted digital content has been decrypted with the first decrypting key, and the tamper resistant environment storing the reencrypted digital content on the storage device; a player coupled to the interface for decrypting and playing the stored reencrypted digital content data and generating usage information describing the reencrypted digital content; and a transmitter for transmitting the usage information to a remote logging site, the usage information informing the remote logging site of at least one of a playing of the reencrypted digital content data by the player and a copying of at least part of the reencrypted digital content data from the storage device to an external medium.