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Posted by Allan on 09/25/05 01:58
On Sat, 24 Sep 2005 11:59:06 -0700, "Alpha" <none@none.net> wrote:
>>>
>>
>> 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?
>
"This is air tight."
They thought that back in '99.. well, before that sixteen year old
broke the code.
"Arguing with anonymous strangers on the Internet is a sucker's game
because they almost always turn out to be -- or to be indistinguishable from
-- self-righteous sixteen-year-olds possessing infinite amounts of free time."
- Neil Stephenson, _Cryptonomicon_
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