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From: Kovacs Balazs <basq@bitklub.hu>
To: Marek Ochaba <ochaba@maindata.sk>
Cc: linux-media@vger.kernel.org
Subject: Re: CI/CAM support for offline (from file) decoding
Date: Wed, 25 Jan 2012 23:34:37 +0100	[thread overview]
Message-ID: <1528925641.20120125233437@bitklub.hu> (raw)
In-Reply-To: <4F20429F.6030003@maindata.sk>

Yes,  i  thought about that, but i need the Hardware CAM + CI, because
it's chip paired encryption. It means in my situation that the EMM and
ECM is also encrypted so it's hard to use in a SoftCam configuration.

I hope there's a solution in the DVB driver space.

I receive the signal via RF or IP. If via RF i think it can be decoded
via  the  HW,  and  the  record  it  to  disk,  but i need the full TS
decrypted, and i think it's not possible (to decrypt all the encrypted
ES  which  can be 20-30-40 in real time when i receive the signal). In
IP  configuration  it's also not possible. So i have the recorded full
TS  pieces  and somehow i have to decrypt with a CAM+Card paired to each
other.  Of  course  i know that the decryption is only possible if the
Smartcard  has  the  authorization in those date ranges when the files
was recorded. I have seen this kind of solution in Windows, but i need
it on Linux now.

Thank you,

Balazs Kovacs


> I think more feasible way (than using linux kernel DVB layer) is using
> SoftwareCAM with SmartCard reader. Some solution should be also implemented
> in STB, which save records in encrypted state.

> --
> Marek Ochaba


  reply	other threads:[~2012-01-25 22:34 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-25 17:15 CI/CAM support for offline (from file) decoding Kovacs Balazs
2012-01-25 17:21 ` Kovacs Balazs
2012-01-25 17:57 ` Marek Ochaba
2012-01-25 22:34   ` Kovacs Balazs [this message]
2012-01-26 12:21     ` Ralph Metzler
2012-01-26 12:50       ` Sébastien RAILLARD (COEXSI)
2012-01-26 13:44         ` Kovacs Balazs
2012-01-26 14:18           ` Sébastien RAILLARD (COEXSI)
2012-01-26 13:45       ` Kovacs Balazs

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