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Tamper-proofing method and device for dynamic library

A dynamic library, anti-tampering technology, applied in the direction of digital data protection, program/content distribution protection, etc., can solve the problem of not preventing data tampering, etc., to achieve the effect of ensuring integrity

Inactive Publication Date: 2019-04-16
XUJI GRP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a tamper-proof method and device for a dynamic library, which is used to solve the problem in the prior art that only detects whether the data during update has been tampered with, but does not prevent data tampering after the update

Method used

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  • Tamper-proofing method and device for dynamic library
  • Tamper-proofing method and device for dynamic library
  • Tamper-proofing method and device for dynamic library

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Embodiment Construction

[0026] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0027] The embodiment of the anti-tampering method of dynamic library:

[0028] The invention provides a tamper-proof method for a dynamic library. The steps are: when the dynamic library is updated, if the updated dynamic library is a dynamic library issued by a correct issuer, the dynamic library is backed up; , regularly check whether the dynamic library has been tampered with, and if tampered with, replace the tampered dynamic library with a backup dynamic library.

[0029] Specifically, the anti-tampering method of the dynamic library of this embodiment mainly includes three aspects of dynamic library release, dynamic library update and dynamic library tampering. way, the following uses digital signature as an example to illustrate, such as figure 1 As shown, the implementation steps of dynamic library publishing are as follows:

[0030] 1...

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Abstract

The invention provides a tamper-proofing method and a tamper-proofing device for a dynamic library. A digital signature of a publisher is added when the dynamic library is distributed, when the dynamic library is updated, the digital certificate of the publisher is detected, and if the updated dynamic library is the correct dynamic library published by the publisher, the dynamic library is encrypted and backed up, so that the integrity of updated file data is ensured; In the program running process, whether the dynamic library is tampered or not is checked regularly, if the dynamic library istampered, the tampered dynamic library is replaced with the backup dynamic library, and the dynamic library is prevented from being tampered in the program running process.

Description

technical field [0001] The invention belongs to the field of embedded and industrial control technologies, and in particular relates to a tamper-proof method and device for a dynamic library. Background technique [0002] The rapid development of computer and network technology has greatly promoted information interaction, but at the same time, the attack methods are constantly evolving and updating with the development of technology, so data security issues are becoming more and more important. Once the program is tampered with, the server will crash. A series of problems such as the library being hijacked. Anti-tampering technology is a key technical content in the fields of file protection, system security, intrusion detection, etc. Its function is to protect the consistency of specific files or file directories. [0003] At present, dynamic libraries are commonly used in embedded systems. Dynamic libraries can provide software calls. Dynamic libraries are a library cont...

Claims

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Application Information

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IPC IPC(8): G06F21/12G06F21/60G06F21/64
CPCG06F21/12G06F21/60G06F21/64
Inventor 王旭宁温东旭王永刚吕志来杨震晖徐涛张保善万首丰
Owner XUJI GRP
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