Invention Grant
- Patent Title: DLNA/DTCP stream conversion for secure media playback
- Patent Title (中): 用于安全媒体播放的DLNA / DTCP流转换
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Application No.: US14215848Application Date: 2014-03-17
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Publication No.: US09338149B2Publication Date: 2016-05-10
- Inventor: Paul Moroney
- Applicant: General Instrument Corporation
- Applicant Address: US GA Suwanee
- Assignee: ARRIS Enterprises, Inc.
- Current Assignee: ARRIS Enterprises, Inc.
- Current Assignee Address: US GA Suwanee
- Agent Thomas A. Ward
- Main IPC: H04L29/06
- IPC: H04L29/06 ; G06F21/00 ; H04N21/2343 ; H04N21/2347 ; H04N21/235 ; H04N21/236 ; H04N21/2381 ; H04N21/2389 ; H04N21/258 ; H04N21/262 ; H04N21/266 ; H04N21/41 ; H04N21/414 ; H04N21/4147 ; H04N21/434 ; H04N21/435 ; H04N21/436 ; H04N21/4367 ; H04N21/4385 ; H04N21/4402 ; H04N21/4405 ; H04N21/4408 ; H04N21/482 ; H04N21/6334 ; H04N21/643 ; H04N21/835 ; G06F21/10

Abstract:
A process for converting a DTCP-IP transport stream into HLS format, comprising receiving an encrypted DTCP-IP transport stream comprising DTCP frames at a secondary device from a source device, with each of the plurality of DTCP frames comprising encrypted 16-byte portions, forming chunks from the DTCP frames by grouping encrypted 16-byte portions into a chunk, adding HLS padding bytes to the end of each chunk and encrypting the HLS padding bytes to form an encrypted chunk, loading each of the encrypted chunks and a playlist to a media proxy server at the secondary device, loading a DTCP key onto a security proxy server, and providing the playlist, each of the encrypted chunks, and the DTCP key to a native media player on the secondary device, such that the native media player follows the playlist to decrypt the encrypted chunks using the DTCP key and plays back the chunks.
Public/Granted literature
- US20140281481A1 DLNA/DTCP STREAM CONVERSION FOR SECURE MEDIA PLAYBACK Public/Granted day:2014-09-18
Information query