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1. 发明授权

US06668325B1 Obfuscation techniques for enhancing software security 失效
标题翻译：用于增强软件安全性的混淆技术
公开(公告)号：US06668325B1
公开(公告)日：2003-12-23
申请号：US09095346
申请日：1998-06-09
申请人： Christian Sven Collberg , Clark David Thomborson , Douglas Wai Kok Low
发明人： Christian Sven Collberg , Clark David Thomborson , Douglas Wai Kok Low
IPC分类号： G06F1214
CPC分类号： G06F21/14
摘要： The present invention provides obfuscation techniques for enhancing software security. In one embodiment, a method for obfuscation techniques for enhancing software security includes selecting a subset of code (e.g., compiled source code of an application) to obfuscate, and obfuscating the selected subset of the code. The obfuscating includes applying an obfuscating transformation to the selected subset of the code. The transformed code can be weakly equivalent to the untransformed code. The applied transformation can be selected based on a desired level of security (e.g., resistance to reverse engineering). The applied transformation can include a control transformation that can be creating using opaque constructs, which can be constructed using aliasing and concurrency techniques. Accordingly, the code can be obfuscated for enhanced software security based on a desired level of obfuscation (e.g., based on a desired potency, resilience, and cost).
摘要翻译：本发明提供了用于增强软件安全性的混淆技术。在一个实施例中，一种用于增强软件安全性的混淆技术的方法包括选择代码的子集（例如，应用程序的编译源代码）来模糊和混淆所选代码的子集。混淆包括将模糊化变换应用于所选择的代码子集。转换的代码可能与未转换的代码相当。可以基于期望的安全级别（例如，抵抗逆向工程）来选择所应用的变换。所应用的变换可以包括可以使用不透明构造创建的控制变换，其可以使用混叠和并发技术来构造。因此，可以基于期望的混淆水平（例如，基于期望的效力，弹性和成本）来对代码进行模糊处理以增强软件安全性。

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