发明申请
- 专利标题： Semi-public white-box cipher
- 专利标题（中）： 半公开白盒密码
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申请号： US11251625申请日： 2005-10-14
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公开(公告)号： US20070086586A1公开(公告)日： 2007-04-19
- 发明人: Mariusz Jakubowski , Ramarathnam Venkatesan , Gideon Yuval , Yacov Yacobi , Matthew Cary
- 申请人： Mariusz Jakubowski , Ramarathnam Venkatesan , Gideon Yuval , Yacov Yacobi , Matthew Cary
- 申请人地址： US WA Redmond
- 专利权人： Microsoft Corporation
- 当前专利权人： Microsoft Corporation
- 当前专利权人地址： US WA Redmond
- 主分类号： H04L9/28
- IPC分类号： H04L9/28
摘要：
A computer-implemented system and method for configuring and operating a white-box cipher is disclosed. In one implementation, the system employs a method for configuring pseudorandom data derived from a key to perform key-scheduling functionality associated with rounds of the cipher. Additionally, the system employs a method for generating white-box executable code, wherein the code hides the pseudorandom data by incorporating it into mathematical operations performed during execution of the rounds. Accordingly, the cipher is suited for white-box applications managing digital rights, such as decoding audio, video and other content.
公开/授权文献
- US07769165B2 Semi-public white-box cipher 公开/授权日：2010-08-03
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