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How to Lock Down your Java Byte code?

How to Lock Down your Java Byte code?. Girish Kulkarni Tech Mahindra, Mumbai kugirish@techmahindra.com 022 - 66882000. 31/07/2006. Agenda. Java - Multi platform language Java Architecture Java decompilation Techniques to defeat decompilation Obfuscators Byte code Encrypter/Decrypter

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How to Lock Down your Java Byte code?

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  1. How to Lock Down your Java Byte code? Girish Kulkarni Tech Mahindra, Mumbai kugirish@techmahindra.com 022 - 66882000 31/07/2006

  2. Agenda • Java - Multi platform language • Java Architecture • Java decompilation • Techniques to defeat decompilation Obfuscators Byte code Encrypter/Decrypter Generating Exe from source • Result and summary

  3. Java Byte Code Compile Platform specific Machine Code Java – Multi platform language JAVA Source Code Java Virtual Machine

  4. Java Architecture • Java Byte code • Simplicity of JVM architecture • Byte code format - Well documented • Prone to Reverse Engineering attacks

  5. Java Decompilation • Definition • Demo • Disadvantages

  6. Techniques to defeat Decompilation • Obfuscators • Byte code Encrypter/Decrypter • Generating Exe from source

  7. Techniques to Defeat Decompilation - Obfuscators • Techniques used • Layout Obfuscation • Data Obfuscation • Control Obfuscation • Demo • Pros and cons

  8. Techniques to defeat Decompilation Contd. • Byte code Encrypter/Decrypter • Technique • Vulnerable to attack • Generating Exe from source • Technique • Exe – Platform dependent

  9. Summary and Result • Summary and Result • Questions Thank You

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