On Tuesday 09 March 2004 01:15, Robert Schlabbach wrote: > From: "Oliver Endriss" <[EMAIL PROTECTED]> > > Hm, interesting. Are you sure? Afaik the CSA is implemented in the AV7110 > > of the full-featured cards. So I would have expected that CSA has to be > > implemented in the driver of the budget cards, not in the CAM. > > Maybe I'm wrong. > > These are two different things. Remember that some receivers only come with > a smart card slot, i.e. they have a "builtin CAM". In those, the firmware > implements the algorithm which generates the key pairs (64 bits = 8 bytes), > with which the MPEG-2 transport stream is decrypted using CSA. The firmware > could then write this key pair to the corresponding AV7110 registers and > have it decrypt the transport stream _without_ any CAM!
I see. That's why they called the av7110 'Integrated Set-top Box Decoder'. It was designed for stand-alone set-top boxes... > But when you have a CAM, it will implement the CSA. Great. So there are no license/patent issues which might prevent writing an open-source driver. I wonder why nobody has done this before. The hardware has been available for some time. Oliver -- Info: To unsubscribe send a mail to [EMAIL PROTECTED] with "unsubscribe linux-dvb" as subject.
