. The FPS framework initializes the key delivery process to create a session with the content provider key
server.
. The content provider key server wraps the 128-bit AES content key with the session key and an anti-replay
mechanism.
. The key delivery process implements a triple-protection solution (AES, RSA, and derivation functions).
. The content provider encrypts the H.264 video content on a per frame basis using AES-CBC mode with
the content key and the initialization vector.