Posted by Alpha on 12/23/46 11:27

"Allan" <Spamstillsucks@buffyandkantica22arebrianlamb.net> wrote in message
news:gsiaj1teqms6h9vl1t1taptfotavoquaav@4ax.com...
> On Fri, 23 Sep 2005 22:14:22 -0700, "Alpha" <none@none.net> wrote:
>
>>You are naive. The codes will change hourly according to a complex
>>algorithm. There will be no 'the code' to crack, and the code algorithm
>>is
>>changeable immediately in case a crack is found. In fact, if it detects a
>>problem, the entire machine is disabled.
>>
>>This is air tight.
>>
>
> Content-Scrambling System (CSS) is an encryption system used on some
> DVDs. It uses a weak, proprietary 40-bit encryption stream cipher
> algorithm. The system was introduced circa 1996.
>
> The CSS key sets are licensed to manufactors who incorporate them into
> products such as DVD drives, DVD players and DVD movie releases. Most
> DVD players are equipped with a CSS Decryption module. CSS key is a
> collective term for authentication key, disc key, player key, title
> key, second disk key set, and/or encrypted key.
>
> In October 1999, the algorithm was reverse engineered by Jon Johansen
> and DeCSS was released. The CSS algorithm was soon revealed to be
> easily susceptible to a brute force attack. The weakness of the
> protection is due to US government crypto-export regulations, apart
> from being an example of the trusted client problem.


What does this have to do with Blu Ray?

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