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AACS加密系统的授权管理组织(AACS LA)近日正式对网络上出现的HD DVD和蓝光光盘AACS加密系统的破解做出了回应。
在AACS网站上的一份声明中,AACS LA称:“我们已经确认AACS ‘Title key’已经未经授权的出现在网络上。这次泄密是由于一或多款授权播放器遭到攻击而造成的。”
上个月末,网友Muxlix64放出了拷贝HD DVD的软件,本月又放出了蓝光版本,可以将其受AACS保护的视频内容复制出来,使得加密系统形同虚设。这次的破解实际上并没有攻破AACS加密算法,而只是由于WinDVD等播放软件将Title Key等加密密钥未经保护的放在了内存中,而取得这些内存中的数据就可以绕过AACS系统复制数据。AACS LA称这次的破解时间给所有得到AACS授权的企业敲响了警钟,应该认真检查自己的技术,确保安全得到保障。
“此次的事件仅是一个特例,并不代表AACS系统本身、或是任何一种光盘格式受到攻击。我们已经开始采用技术以及法律上的方案来对抗此次攻击,并且正在采取适当的补救措施,来解决此次事件。”
RESPONSE TO REPORTS OF ATTACKS ON AACS TECHNOLOGY
January 24, 2007
AACS LA has confirmed that AACS Title Keys have appeared on public web sites without authorization. Such unauthorized disclosures indicate an attack on one or more players sold by AACS licensees. This development is limited to the compromise of specific implementations, and does not represent an attack on the AACS system itself, nor is it exclusive to any particular format. Instead it illustrates the need for all AACS licensees to follow the Compliance and Robustness Rules set forth in the AACS license agreements to help ensure that product implementations are not compromised. AACS LA employs both technical and legal measures to deal with attacks such as this one, and AACS LA is using all appropriate remedies at its disposal to address the attack.
http://www.aacsla.com/press/. |
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