Obfuscation Using Exception Handling
| Autor: | Huang, Chih-Chao, 黃致超 |
|---|---|
| Rok vydání: | 2010 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 99 There exist several reverse engineering tools that can easily recover source code from a lower level immediate representation. To protect intellectual property, obfuscation is one of the easiest and efficient way to achieve this goal. A good obfuscation tool can not only makes the obfuscated code much harder to understand but also ensures the correctness. Previous obfuscating approaches mostly use program transformation that base on opaque predicate to obfuscate control flow transfer. However, although these methods can provide a good resilient, they usually decrease performance a lot if applied on the whole program. In this paper, we use runtime exception to hide the real code. During obfuscation, the original program is obfuscated by changing each loop into a specific runtime exception and inserting bogus code after the runtime exception. The obfuscated code's correctness is maintained but the code is now unable to be decompiled. Experiment results show that our obfuscation technique increase less overhead and code size on SPECJVM2008. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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