Source code obfuscation method and device based on variables and code execution order

Abstract

The embodiment of the present application provides a source code obfuscation method and device based on variables and code execution sequence, including: first obfuscate the target variables that need to be protected in the source code of the target application program; The jump logic at runtime splits the source code into multiple code blocks; based on the jump logic and the code block marks corresponding to each code block, the second obfuscation process is performed on the execution order of the target code blocks in multiple code blocks ; and establish a jump table representing the execution order of multiple code blocks, the jump table stores the mapping relationship between the code block mark and the code block address after the second obfuscation process; wherein, the code block mark is used to access the corresponding code block address. In this application, the purpose of blurring and obfuscating target variables in the source code and hiding the execution sequence of the source code can be achieved, thereby improving the anti-reverse analysis capability of the source code and improving the security of information in the application program.

Description

technical field [0001] The present application relates to the technical field of software security, in particular to a source code obfuscation method and device based on variables and code execution order. Background technique [0002] With the continuous development of science and technology, terminal equipment has been widely used in people's life and work. With the wide application of terminal devices, more and more application programs are installed on the terminal devices. When a user uses some application programs, some important information may be stored in the application program, and some people may attack the application program in order to illegally obtain the information. [0003] At present, when obtaining the above-mentioned information illegally, static analysis tools such as disassembly and decompilation are usually used to reversely analyze and crack the source code of the application program to obtain the execution logic of the application program, thereby...

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Problems solved by technology

[0003] At present, when obtaining the above-mentioned information illegally, static analysis tools such as disassembly and decompilation are usually used to reversely analyze and crack the source code of the application program to obtain the execution logic of the application program, thereby illegally stealing and illegally tampering with the application program during its operation. Important information generated, resulting in a major security risk in the application

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