Patent ID: 9491521
Filing Date: 2016-11-08
CPC Classification: H04L,H04N

Claim Text:
1. A method for producing HLS streaming video on a system otherwise configured for a DTCP standard, the method comprising: receiving a request for a DLNA SEEK operation for a requested new content; creating chunks for a DTCP Protected Content Packet (PCP) equivalent structure for a range of new content needed for the DLNA SEEK operation; generating a new HLS playlist in response to the DLNA SEEK operation with identification of the chunks and a keytag; providing a DTCP PCP header for the playlist that is configured to include an exchange key ID and copy control information; deriving at least one IV to be inserted in each of the keytags; starting each chunk with an IV, allowing placement of encrypted DTCP PCP content inside the chunk; and adding padding at each chunk boundary.