System and method for detecting AES random number generator synchronization errors

摘要

In accordance with the teachings of the present invention, a system and method for detecting AES random number generator synchronization errors are provided. In particular embodiments of the present invention, the method includes generating a first synchronization word at a playback server, the first synchronization word comprising a 10-bit advanced encryption system word immediately following an advanced encryption system word used to encrypt a final pixel of a final active line of a previous frame of video; placing the first synchronization word in a link encryption metadata message in an ancillary data packet; transmitting the ancillary data packet from the playback server to a digital video projector; extracting the first synchronization word from the link encryption metadata message at the digital video projector; generating a second synchronization word at the digital video projector, the second synchronization word comprising a 10-bit advanced encryption system word immediately following an advanced encryption system word used to decrypt the final pixel of the final active line of the previous frame of video; comparing the first and second synchronization words at the digital video projector; and generating an error message in response to a determination that the first and second synchronization words are not identical.