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Java bytecode conversion method, device and equipment in application installation package

An application and bytecode technology, applied in the field of data processing, to solve application security issues and other issues

Active Publication Date: 2019-12-13
BEIJING KINGSOFT INTERNET SECURITY SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The odex file is obtained by dump, and then the original classes.dex file can be obtained through corresponding processing, which leads to security problems in the application

Method used

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  • Java bytecode conversion method, device and equipment in application installation package
  • Java bytecode conversion method, device and equipment in application installation package
  • Java bytecode conversion method, device and equipment in application installation package

Examples

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Embodiment Construction

[0064] In order to improve the security of the application program, the embodiment of the present invention provides a method, device and equipment for converting JAVA bytecode in the application program installation package.

[0065] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0066] In some systems, such as the Android system, under normal circumstances, the executable code includes: native bytecode and JAVA bytecode compiled by JAVA language, the JAVA bytecode is interpreted by the JAVA virtual machine into the n...

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Abstract

The embodiment of the invention discloses a method, apparatus and device for converting a JAVA byte code in an application program installation package. The method comprises the following steps: extracting a JAVA byte code that can be converted according to a stored conversion indication table of JAVA byte codes, converting the JAVA byte code into a corresponding original byte code according to the semantic of the JAVA byte code, storing each converted original byte code in an export file, and establishing a call from the JAVA byte code that can be converted to the export file in the file. In the embodiment of the invention, the JAVA byte code that can be converted is extracted, the JAVA byte code is converted into the corresponding original byte code of the corresponding semantic and is stored in the export file, the original byte code is more complex than the JAVA byte code for an attacker and is more difficult to break, and thus the security of application programs is improved.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a JAVA bytecode conversion method, device and equipment in an application program installation package. Background technique [0002] Most of the existing application programs are developed in the JAVA language, and the application programs are compiled into JAVA bytecodes and executed in the JAVA virtual machine (Dalvik). Since the JAVA language is a high-level language, and the JAVA virtual machine interprets and executes the JAVA bytecode, it is very easy to match the JAVA bytecode with the JAVA source code one by one. After obtaining the JAVA source code, the attacker can easily analyze the implementation logic of the application, thereby cracking the application, such as finding the loopholes of the application, or obtaining the encryption key of the application data during transmission, etc. Further, the code of the program, etc. may be changed. Since the applicat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F8/41
Inventor 秦皓
Owner BEIJING KINGSOFT INTERNET SECURITY SOFTWARE CO LTD
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