Python code obfuscation method based on control flow and appearance obfuscation
A code obfuscation and control flow technology, applied in the field of Python code obfuscation, can solve the problems of core code theft or tampering, it is difficult to protect the intellectual property rights of the code, etc., to achieve complex logical structure, increase the difficulty of reading and understanding, and protect software copyright. Effect
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[0033] In this embodiment, a kind of Python code obfuscation method based on control flow and appearance confusion, according to figure 1 Follow the steps shown:
[0034] Step 1. First, read the Python code that needs to be confused; second, use the built-in functions in the Python language to obtain the parse tree of the code; then, divide all the functions in the Python code with the start and end of a function as the unit, Get several individual functions;
[0035] Step 2. For any single function fun, such as figure 2 As shown in the figure, several consecutively executed codes in the function body are divided, and several basic blocks are obtained and numbered sequentially, recorded as B={b 1 ,b 2 ,...,b i ,...,b n}; figure 2 The number of basic blocks in n=4, so get B={b 1 ,b 2 ,b 3 ,b 4}; b i Indicates the i-th basic block; the i-th basic block b i The code in has only one entry and one exit; 1≤i≤n; to extract the basic blocks in the function;
[0036] Ste...
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