Method for detecting cryptology misuse of Android application programs
A technology for application and misuse detection, applied in program control devices, digital data protection, etc., to solve problems such as inability to process applications
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[0040] Such as figure 1 As shown, this embodiment includes the following steps:
[0041] The first step is to conduct a reverse analysis of the application to be detected to obtain the source code. The specific steps include:
[0042] 1.1 Use JEB to reverse process the application to be detected, reversely restore the program code in the compiled Android application apk file to smali code and java code.
[0043] 1.2 The application program processed by JEB includes smali code and java code. The smali code includes all class codes and can be used as a code library. The java code is divided into different files by class.
[0044]The second step is to find the code segment related to the cryptographic algorithm in the reversed smali code. The specific steps include:
[0045] 2.1 Statically scan the smali code reversed by the application to be detected, and find the API that the java cryptography library must use: the dofinal() function. By looking for this function, you can loc...
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