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DBPD: A Dynamic Birthmark-based Software Plagiarism Detection Tool

DBPD: A Dynamic Birthmark-based Software Plagiarism Detection Tool. Zhenzhou Tian zztian@stu.xjtu.edu.cn MOE Key Lab for Intelligent Networks and Network Security Xi’an Jiaotong University, China 2014/8/30. Introduction.

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DBPD: A Dynamic Birthmark-based Software Plagiarism Detection Tool

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  1. DBPD: A Dynamic Birthmark-based Software Plagiarism Detection Tool Zhenzhou Tian zztian@stu.xjtu.edu.cn MOE Key Lab for Intelligent Networks and Network Security Xi’an Jiaotong University, China 2014/8/30

  2. Introduction • Software plagiarism has been a serious threat to the healthy development of software industry • Violate licenses for commercial interests or unwittingly • Weak code protection awareness • Powerful automated code obfuscation tools • Distributed in binary form

  3. Introduction • Many software birthmark based techniques are proposed • Static Birthmarks: CVFV,SMC,IS,UC… • Dynamic Birthmarks: WPP, SCSSB, SCDG, DKISB… • Seldom tools are publically available • Dynamic birthmarks are believed to perform better than static birthmarks

  4. Framework of DBPD • Software Birthmark A set of characteristics extracted from a program that reflects intrinsic properties of the program, and which can be used to identify the program uniquely. • Design Overview

  5. Three Dynamic Birthmarks • Three Birthmark Approaches Implemented • DKISB: Dynamic Key Instruction Sequence Birthmark Generated using k-gram algorithm from dynamic key instructions (instructions that are both value updating and input correlated). • SCSSB: System Call Short Sequence Birthmark Extracted by splitting system call sequence into short sub-sequences • SODB: Stack Operation Dynamic Birthmark Generated by analyzing the behavior of stack operations,utilizing the law of push and pop operation of call stack to uniquely identify a program

  6. Demonstration Independently implemented software with similar functionalities

  7. Demonstration Plagiarism Using Different Compilers and Optimization Levels

  8. Demonstration Plagiarism Using Specific Obfuscation Tools

  9. Demonstration Cross-Platform Plagiarism Scenario

  10. Some Definitions

  11. Some Definitions

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