用加密的方法来保护Java类文件,加密可以有效地对抗反编译

Java技术在设计之初就考虑到应用环境的复杂性,因此允许用户根据Java规范定制类加载器,使用这些定制的Classloader可以完成特定的操

作,比如从网络上下载类文件,验证类文件来源等,本文定制了

北京邮电大学硕日毋究生学位论文Java软件保护技术研究及实现一个Classloader来完成加密类文件的加载"

(3)负责密钥提取和解密的具体算法不能被加密,否则又需要先将它

们解密,由此将形成一个循环,而它们又是必须要加以保护的核

心内容,本方案中,将它们用C++实现并编译为本地的动态链接

库文件,这样可以有效地抵抗反编译

-Encryption method used to protect Java class files, encryption can be effective against decompile Java technology early in the design to take into account the complexity of the application environment, thus allowing users to customize the Java class loader specification, use these custom Classloader can be completed specific actions, such as class files downloaded from the Internet, verify that the class file sources, Beijing University of Posts and customized paper at no postgraduate Master Thesis Java software protection technology research and implement a Classloader to complete the encryption class file loaded " (3 ) is responsible for extracting and decrypting key specific algorithm can not be encrypted, or they need to first decrypt them, thereby forming a loop, and that they must be taken to protect the core, this scenario, they are implemented using C++ and compiled to native dynamic link library file, which can effectively resist decompile