Patent ID: 7891007
Filing Date: 2011-02-15
Classification: G06F,H04L

Abstract:
1. A method for managing rights in digital content, the method comprising: generating at a client device rights data for a piece of digital content, the rights data representing a set of parameters for licensing the digital content and including: encrypting at the client device the digital content according to a content key; protecting at the client device the generated rights data and the content key according to a public key of a licensor selected to issue a license for the digital content; submitting from the client device the protected generated rights data with the one or more specified licensee entities and each respective set of rights and the protected content key as a rights label to the licensor, the licensor signing the rights label according to a private key corresponding to the public key after verifying that the set of rights in the rights label can be enforced by the licensor and returning the signed rights label to the client device; and forming at the client device a piece of rights managed digital content by concatenating the signed rights label with the encrypted digital content.