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Method and apparatus for protecting shared target file

A technology for sharing target files and protection devices, which is applied in the field of protection methods and devices for shared target files, can solve problems such as difficulty in applying the general protection level of mass users, inability to achieve reinforcement, etc., and achieve the effect of improving the ability to resist static reverse cracking.

Active Publication Date: 2015-11-25
BEIJING NAGA INFORMATION TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these protection methods require users to modify the source code or the core logic of the program, which cannot achieve rapid reinforcement, and are difficult to apply to the general protection level of mass users

Method used

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  • Method and apparatus for protecting shared target file
  • Method and apparatus for protecting shared target file
  • Method and apparatus for protecting shared target file

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content.

[0024] A specific embodiment of the present invention provides a specific protection method for a shared object file, such as figure 1 As shown, when the method is executed, it includes the following steps:

[0025] 101. Acquire a program header table of a shared object file, where the program header table includes segment description information.

[0026] Among them, the format of the above-mentioned shared object file, that is, the SO file conforms to the ELF (Executable and Linkable Format, executable connection format) sp...

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Abstract

The present invention discloses a method and apparatus for protecting a shared target file, relates to the field of communications technologies, and can implement a fast protection on a shared target file. The method mainly comprises: obtaining a program head table of a shared target file, wherein the program head table contains section description information; according to the section description information, obtaining an original code section that needs to be encrypted; performing encryption processing on the original code section to obtain an encrypted code section and encrypted description information; and according to the encrypted code section, the encrypted description information and other data except the original code section in the shared target file, forming a protected shared target file. The method and apparatus provided by the present invention are mainly used for the process of protecting the shared target file.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to the technical field of data security, in particular to a method and device for protecting a shared object file. Background technique [0002] Each Android installation package (AndroidPackage, APK) file includes a shared object file (Sharedobjectfile, SO). The SO file in Android is similar to the dynamic link library file (DynamicLinkLibrary, DLL) in Windows. The functions it contains It will not be regarded as a part of the Android program, but can be loaded and run according to the needs of the program. For some Android applications with high security requirements (such as mobile banking clients, etc.), SO files are usually used to complete the core operations of the backend, so SO files are required to have high security. [0003] In the prior art, in order to improve the security of the shared target file, the shared target file is protected. The usual protecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/60
Inventor 阎文斌
Owner BEIJING NAGA INFORMATION TECH DEV CO LTD