Python program encryption protection system and method based on code virtualization

Abstract

The invention provides a Python program encryption protection system and method based on code virtualization. According to the invention, a pyc analysis module, a code object disassembling module, anencryption virtual machine generation module, a code object post-processing module, a code object generation module and a pyc generation module are arranged; on the premise that a Python interpreter layer is not modified and any third-party dll and so library is not loaded, Python codes are protected as high as possible, an original pyc file structure is damaged, so that a universal decompilationtool cannot be applied to an encrypted pyc file in architecture, the program safety is improved, and software written in Python script language is tamper-proof and counterfeit-proof.

Description

technical field [0001] The invention relates to the technical field of software program encryption, in particular to a code virtualization-based Python program encryption protection system and method. Background technique [0002] At present, the private or public commercial Python code protection schemes used in the market can be roughly divided into the following types: [0003] 1. Obfuscate the variable name and function name of the Python source code, or use the exec statement to execute after encryption. This method does not change the source code flow and structure itself, because of the particularity of the Python scripting language, the obfuscated code still exists in plain text and can be viewed directly. Although the Python script after losing the identifier name is more difficult to read, it is still easy to find out the algorithm at the key position, and directly modify the relevant code, without substantial protection. For the method of encrypting the Python s...

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a Python program encryption protection system and method based on code virtualization, aiming to solve the problem of software written in the Python scripting language in the prior art. The problem of low security is to improve program security without any modification to the Python interpreter layer and without loading any third-party dll and so libraries.

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