Methods and Apparatuses for Securing Playback Content

A method comprising:

• receiving from a first application authentication information including a first key;
• performing key derivation in conjunction with the first key;
• extracting a title key;
• and
• decrypting a first part of first data to generate video information and video data, wherein the first key is opaque to the first application and an unencrypted version of the video data is protected from the first application.

An article of manufacture comprising a computer readable storage medium including data storing instructions thereon that, when accessed by a machine, cause the machine to perform a method comprising:

• receiving from a first application authentication information including a first key;
• performing key derivation in conjunction with the first key;
• and
• decrypting a first part of first data to generate video information and video data wherein the first key is opaque to the first application and an unencrypted version of the video data is protected from the first application.