本文详细介绍了MKBv4加密技术的破解过程，并解释了为何不在AnyDVD HD中直接包含解密代码的原因。一方面是为了避免被AAC轻松封锁，另一方面则是防止研究成果被其他商业软件利用。文中还提到了之前发布MKBv3解密工具后，解密密钥如何被公开的情况。
mkb processing keys
v1 : 09F911029D74E35BD84156C5635688C0
v3: 455FE10422CA29C4933F95052B792AB2
v4
v7: 7A 5F 8A 09 F8 33 F7 22 1B D4 1F A6 4C 9C 79 33
I even want to be more honest. Of course we have completely opened MKBv4, otherwise I would not be able to remotely crack every disc I receive an AnyDVD_Info file.
But AnyDVD HD does (and will) not contain code to directly decrypt MKBv4 (and up) titles at this time, for two reasons:
1.) AACS will have a hard time to blacklist us, if they don't know HOW WE DO IT.
Well, weak argument, they might be able to find out, but it will be very hard...
2.) Last time, we were the first releasing an AnyDVD HD beta which fully decrypted MKBv3, even weeks before the first disc (Matrix HD DVD) was officially released. A couple of days later, the processing key was published in a blog, then the folks at Doom9 picked it up. May be a coincidence, but honestly, AnyDVD is much easier to attack than the commercial player software, so I suspect the key was taken out of the AnyDVD HD beta.
I wouldn't mind so much if freeware is using our research, but other commercial programs like DVDFab picks up our research from the freeware tools.
You must understand, that our research costs a lot of time and money - funded by customers who have or will buy an AnyDVD HD license -, and we don't want other commercial software publishers to benefit from our work.
In other words - this time, Fengtao must do the work on his own, or wait until the freeware tools provide him with the required information.
But AnyDVD HD does (and will) not contain code to directly decrypt MKBv4 (and up) titles at this time, for two reasons:
1.) AACS will have a hard time to blacklist us, if they don't know HOW WE DO IT.
Well, weak argument, they might be able to find out, but it will be very hard...2.) Last time, we were the first releasing an AnyDVD HD beta which fully decrypted MKBv3, even weeks before the first disc (Matrix HD DVD) was officially released. A couple of days later, the processing key was published in a blog, then the folks at Doom9 picked it up. May be a coincidence, but honestly, AnyDVD is much easier to attack than the commercial player software, so I suspect the key was taken out of the AnyDVD HD beta.
I wouldn't mind so much if freeware is using our research, but other commercial programs like DVDFab picks up our research from the freeware tools.
You must understand, that our research costs a lot of time and money - funded by customers who have or will buy an AnyDVD HD license -, and we don't want other commercial software publishers to benefit from our work.
In other words - this time, Fengtao must do the work on his own, or wait until the freeware tools provide him with the required information.
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