CPUYODA
join:2003-01-25
Johnson City, TN | Thank you.,,,
Thank the universe for Doom9..... |
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vpoko
Premium
join:2003-07-03
Jamaica Plain, MA | Wow, I didn't realize it had such a glaring weakness
What's the purpose of a "processing key"? Why introduce a weakness like that into their protocol? |
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dadkins
Can you do Blu?
Premium,MVM
join:2003-09-26
Hercules, CA
 ·Comcast
| YAY!
So, where's my AnyBD driver? 
Still though, at 25-50GB per movie... freakin HUGE ass files!
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Think outside the Fox... Opera |
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thrillhaus
Premium
join:2003-12-26
Tucson, AZ
clubs: | In the words of Nelson....
"Ha ha!" |
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exocet_cm
I am the law
Premium
join:2003-03-23
New Orleans, LA
clubs: 
·Cox HSI
·Suddenlink
 ·Cingular Wireless
 ·AT&T Southeast
·Charter Pipeline
| reply to dadkins
Re: YAY!
said by dadkins  :So, where's my AnyBD driver? Still though, at 25-50GB per movie... freakin HUGE ass files! This is why I am greatful for the available access to bonded T1s near my area.
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"I have measured out my life with coffee spoons..." - T.S Eliot
Ma Blog »www.johndball.com
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karlmarx
join:2006-09-18
iraq
·Fairpoint Communic..
| reply to vpoko
Re: Wow, I didn't realize it had such a glaring weakness
The processing key is the Bob of the Alice and Bob crypto schema. In order to encrypt a disc, you need two things, a public key (alice) and a private key (alice). For Bob to decrypt something from alice, he needs to know Alice's public key (i.e. the HD-DVD). That's what the studios are looking to 'blacklist', so if a player is compromised, they could make the new dvd's NOT work with that player. Thus, every HD-DVD and Blu-Ray contains a section of 'disabled' players (public keys).
If what he said is correct, he's found alice's PRIVATE key. With that key, you don't need to care about the public key. EVERY DVD uses the private key, so you can decrypt everything.
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Stick it to the MAN. Support your local torrent sites. Proudly providing 100mb of upstream for all your TV, Movie, and MP3 needs. |
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cableties
Premium
join:2005-01-27 | Cold war?
Who will run out of money first:
1.Consumer
2.Distributor
3.Producer
4.Pirate
Hmmm...economics of piracy, a thesis for a grad student... |
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nasadude
join:2001-10-05
Rockville, MD
·Comcast
| reply to vpoko
Re: Wow, I didn't realize it had such a glaring weakness
said by vpoko :What's the purpose of a "processing key"? Why introduce a weakness like that into their protocol? I can't remember the source of the information (Ed Felton maybe, at Freedom to Tinker?), but if you read the history of these DRM methods, it appears that some decisions have been made based on things such as how many circuit cards would be needed to implement the DRM - the circuitry for really robust DRM would take 2 ckt boards, but this would add cost and the decision was made to go with a one ckt board, less robust "protection" to keep costs down.
I'm not saying that's why this weakness occurred, just that these DRM schemes are so easily compromisable sometimes because of decisions like these. |
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MxxCon
join:1999-11-19
Brooklyn, NY
clubs:
| reply to CPUYODA
Re: Thank you.,,,
doom9 site and forum are for much more than just cracking drm
most video/audio/player developers post and collaborate there
they also have excellent video codecs comparison tests, ie is xvid better than divx better than x.246
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[Sig removed by Administrator: Signature can not exceed 20GB] |
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vpoko
Premium
join:2003-07-03
Jamaica Plain, MA
| reply to karlmarx
Re: Wow, I didn't realize it had such a glaring weakness
said by karlmarx :The processing key is the Bob of the Alice and Bob crypto schema. In order to encrypt a disc, you need two things, a public key (alice) and a private key (alice). For Bob to decrypt something from alice, he needs to know Alice's public key (i.e. the HD-DVD). That's what the studios are looking to 'blacklist', so if a player is compromised, they could make the new dvd's NOT work with that player. Thus, every HD-DVD and Blu-Ray contains a section of 'disabled' players (public keys). If what he said is correct, he's found alice's PRIVATE key. With that key, you don't need to care about the public key. EVERY DVD uses the private key, so you can decrypt everything. I don't claim to be a crytologist, but I think I'm missing something from your explanation. In asymmetrical encryption, there are two keps. Private and public. Something is encrypted with one, and then decrypted with the other. The key that did the original encryption can't also be used to decrypt the cyphertext. |
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George Kidd
join:2001-08-09
Vancouver, BC
| Cyphers
All encryption schemes these days are required to contain "backdoors". After all Big Brother wants to have an easy way to check for secret "terrorist" messages being sent through otherwise innocent media. |
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Michieru2
zzz zzz zzz
Premium
join:2005-01-28
Miami, FL | ...
One processing key to rule them all :| |
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NowVOIP
In the beginning there was POTS
join:2006-03-05
Round Lake, IL | reply to cableties
Re: Cold war?
Hmmm....I would who would win! lol! |
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TigerLord
Resident Pentaxian
Premium,Mod
join:2002-06-09
Montreal | reply to Michieru2
Re: ...
Until 20mbit broadband connections are standard across the planet the distribution of Blu-Ray and HD content will be low profile... |
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fgdjre
@optonline.net | I don't think it's internet bandwidth...
Internet bandwidth will always bottleneck somewhere. Broadband ISPs need to install Caching servers. |
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MxxCon
join:1999-11-19
Brooklyn, NY
clubs: | reply to TigerLord
Re: ...
3-15mbit connections, 20gig movie is an overnight download
so download size isn't a deterrent
what to do with them is..no affordable burners yet.
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[Sig removed by Administrator: Signature can not exceed 20GB] |
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texans20
Weapons of Masturbation
Premium
join:2002-09-28
Texas!
clubs:
| I Don't understand encryption
I have no idea how it works, zero. However I've seen crackers go in a defeat encryption on DVDs, HD DVDs, Blue-Ray, WiFi, etc. It seems to me encryption is pointless and if anyone wanted to access your info, be it the FBI,NSA,China, or a private person they can. SSL, TrueCrypt, etc are all crackable.
Someone help me out here, I'm not being sarcastic when I say I don't know. What's the difference between breaking the encryption on a DVD vs breaking the encryption used on packets via SSL or even an encrypted drive using TrueCrypt. |
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peter_m
Premium
join:2005-07-13
Canada, QC
| reply to vpoko
Re: Wow, I didn't realize it had such a glaring weakness
Ever seen a downloadable movie before it was ever released in theatres???? Well, DRM is just one aspect. The problem also resides with industry insiders. A combination of DVD screeners and DVD masters end-up on the net....
The solution is not DRM. Just like for music, DRM hinders and limits the honest users and not the crooks. If the price is right, people will stop bothering with pirated copies... If you ask me, it's a shame to pay 25$ for movies like "click". |
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dslextreme
Premium,VIP
join:2001-02-23
Canoga Park, CA
| You are missing the point
I don't think the point of DRM and encryption is to keep out the hacker or even well educated computer person. The idea is to keep 95% of the public from duplicating and sharing the files. There is no need for a bulletproof prison, just a hurdle big enough to keep the casual user at bay. |
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Warez_Zealot
Rural land of the rising sun
join:2006-04-19
japan
| HD rips?
When will we start to see HD rips of movies? I know that aXXo makes great DVD rips of movies, but having a HD rip would look even better. 
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The meek shall inherit the earth but don't forget the poor are the ones who inherit the debt. |
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