Autoroll

Autoroll (also: Key Autoroll) refers to TV-signal decryption software that automatically updates a video receiver`s or DVR/receiver`s IDEA keys when the transmitting signal provider changes its block cipher algorithm. Mention of autoroll software often figures in discussions of free-to-air satellite TV receivers, for which it is a vital componen.....
Found on http://en.wikipedia.org/wiki/Autoroll
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