- 专利标题: Systems and methods for secure playback of encrypted elementary bitstreams
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申请号: US16686727申请日: 2019-11-18
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公开(公告)号: US11102553B2公开(公告)日: 2021-08-24
- 发明人: Francis Yee-Dug Chan , Kourosh Soroushian , Andrew Jeffrey Wood
- 申请人: DIVX, LLC
- 申请人地址: US CA San Diego
- 专利权人: DIVX, LLC
- 当前专利权人: DIVX, LLC
- 当前专利权人地址: US CA San Diego
- 代理机构: KPPB LLP
- 主分类号: H04L29/06
- IPC分类号: H04L29/06 ; H04N21/6334 ; H04N21/235 ; H04N21/236 ; H04N21/434 ; H04N21/4405 ; H04N7/167 ; H04N21/43
摘要:
Systems and methods for providing multimedia content from one process or component to another process or component over an unsecured connection are provided. One embodiment includes obtaining the cryptographic information, extracting the at least partially encrypted video data from the container file to create an elementary bitstream, enciphering the cryptographic information, inserting the cryptographic information in the elementary bitstream, providing the elementary bitstream to a video decoder, extracting the cryptographic information from the elementary bitstream at the video decoder, deciphering the cryptographic information, decrypting the elementary bitstream with the cryptographic information and decoding the elementary bitstream for rendering on a display device using the video decoder.
公开/授权文献
- US1657775A Tomato trimmer 公开/授权日:1928-01-31
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