Patent ID: 8296583
Filing Date: 2012-10-23
Classification: G06Q,G11B,H04L

Abstract:
1. A system for distributing encrypted digital content for use by a target player containing a secure memory having a first encryption key stored therein, comprising: a portable cartridge; a key vault configured to store encryption keys including a second encryption key corresponding to the first encryption key as a public-private key pair, and a content key; a first encrypting device configured to encrypt a digital content file using the content key; a second encrypting device configured to encrypt the content key using the second encryption key; a storage device within the portable cartridge configured to store resulting encrypted digital content including the encrypted digital content file and the encrypted content key, whereby the encrypted digital content stored therein is reproduced by the target player; and a secure flash processor, clock and timer installed in the target player at the time of its manufacture storing correct Greenwich Mean Time (GMT) time in the clock, and at the time the target player is initialized, confirming and adjusting as needed the time stored in the clock and permitting reproduction, during predetermined time periods, of the encrypted digital content by the target player.