Patent ID: 8515063

Claim:
A method of viewing a content item, comprising: receiving an encrypted content item and a network address of a key management system from a primary client device over a communications network by a secondary client device; obtaining over the communications network a session key by the secondary client device from the key management system; notifying the primary client device, via the secondary client device, that the session key has been obtained by the secondary client device; receiving over the communications network an encrypted version of a content key used by the secondary client device to decrypt the content item and content rights that determine access to the content item, wherein the content rights restrict the content item from being rendered unless the content item is rendered after beginning rendering of the content item by the primary client device; decrypting the encrypted version of a content key with the session key by the secondary client device; and rendering the content item in accordance with the content rights by decrypting the content item with the content key by the secondary client device.