[mythtv-users] Firewire no longer required on HD STBs

Patrick Ouellette pat at flying-gecko.net
Wed Jun 30 20:07:45 UTC 2010


On Wed, Jun 30, 2010 at 12:54:24PM -0700, Gabe Rubin wrote:
> 
> On Wed, Jun 30, 2010 at 12:46 PM, Simon Hobson <linux at thehobsons.co.uk> wrote:
> 
> My understanding is that the content that comes out of firewire is not
> encrypted, so the tv has no need to decrypt it.  It just recognizes
> the 5C flag that says "allow record"; "allow watch once"; "don't
> allow"; etc.  The TV can display anything with a flag of a certain
> level or higher (i.e., "allow watch once") and a recording device
> (such as a mythbox) can only display/capture anything with a flag of
> "allow record" or higher.  It is basically, does this device have
> permission to access this content, not can this device decrypt the
> stream because there is no encrypted stream to decrypt.

If that is true, how come my Myth box can not record 5C flagged content?
Answer: there is some encryption or "secret handshake" happening that
the cable box needs to either output the stream or the receiving end needs
to decode the stream.  Without joining the 5C cabal, you don't get access.


-- 

Patrick Ouellette                 pat at flying-gecko.net
ne4po (at) arrl (dot) net         Amateur Radio: NE4PO 

What kind of change have you been in the world today?


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