Patent ID: 8094825
Filing Date: 2012-01-10
Classification: G06F,H04L,H04N,H04W

Abstract:
1. A method, comprising: requesting by an electronic device information on at least one content stream from a streaming server; receiving information in said electronic device on the at least one content stream, the information comprising at least one seed value and a master integrity key encrypted with a content key; decrypting said encrypted master integrity key using said content key in said electronic device; forming at least one session integrity key using said at least one seed value and said master integrity key in said electronic device; receiving from said streaming server at said electronic device said at least one integrity protected content stream, said integrity protected content stream being protected with said at least one session integrity key; checking in said electronic device the integrity of said at least one integrity protected content stream using said at least one session integrity key; decrypting said at least one integrity protected content stream using at least in part the content key; and storing said master integrity key in said streaming server, wherein said master integrity key being received from a content owner node.