发明授权
- 专利标题: DLNA/DTCP stream conversion for secure media playback
- 专利标题(中): 用于安全媒体播放的DLNA / DTCP流转换
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申请号: US14215848申请日: 2014-03-17
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公开(公告)号: US09338149B2公开(公告)日: 2016-05-10
- 发明人: Paul Moroney
- 申请人: General Instrument Corporation
- 申请人地址: US GA Suwanee
- 专利权人: ARRIS Enterprises, Inc.
- 当前专利权人: ARRIS Enterprises, Inc.
- 当前专利权人地址: US GA Suwanee
- 代理商 Thomas A. Ward
- 主分类号: H04L29/06
- IPC分类号: 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
摘要:
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.
公开/授权文献
- US20140281481A1 DLNA/DTCP STREAM CONVERSION FOR SECURE MEDIA PLAYBACK 公开/授权日:2014-09-18
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