Patent ID: 7849016
Filing Date: 2010-12-07
Classification: G06Q,H04L,H04N

Abstract:
1. A method of delivering data content from a data content provider to a customer processing platform and controlling use of the data content at the customer processing platform, comprising: encrypting each of a plurality of sections of the data content using a respective one of a plurality of encryption keys to produce a corresponding plurality of encrypted sections; delivering the plurality of encrypted sections to the customer processing platform; and delivering to the customer processing platform a plurality of decryption keys corresponding to the plurality of encryption keys, wherein the decryption keys are delivered in a manner such that the customer processing platform has simultaneous possession of at most a subset of the plurality of decryption keys at any time, wherein delivering the plurality of decryption keys comprises: delivering to the customer processing platform a current key of the plurality of decryption keys; delivering to the customer processing platform a next key of the plurality of decryption keys; and causing the current key to be destroyed at the customer processing platform only after at least the next key of the plurality of decryption keys has been received.