Blakely, Sokoloff, Taylor & Zafman LLP
Methods and apparatuses for securing playback content
An apparatus for secured playback is presented. In one embodiment, the apparatus includes a controller that includes a key derivation module to manage authentication and key derivation. In one embodiment, the apparatus provides a video decryption key to a graphics engine if video data portions in a data stream are retrievable without having to decrypt the data stream. In one embodiment, the apparatus also includes a decryption module to decrypt a part of data in conjunction with an encryption key to generate video information and video data. The controller then writes an encrypted version of the video data to a video buffer of a graphics engine.
Intel Corporation
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Raul Balaji Zohar Daniel Suryaprasad
Gutierrez Vembu Bogin Nemiroff Kareenahalli