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Data integrity protection method

A data integrity and integrity protection technology, applied in the direction of electrical digital data processing, digital data processing components, instruments, etc., can solve the problems of not being able to guarantee that the code is not malicious, not being able to check the system in real time, not being able to detect malicious code, etc., to achieve Good availability, improved availability, and real-time security protection effects

Inactive Publication Date: 2009-06-17
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is that the existing data integrity protection methods either cannot detect new or unknown malicious codes, or can only check regularly but cannot check whether the system is damaged in real time, or can only prevent specific malicious codes from being damaged. All malicious codes cannot guarantee that the codes are not malicious, etc. We propose an integrity protection method suitable for operating system kernel support. This method is both mandatory and a mandatory access control method, and can implement system-wide integrity security. strategy to effectively protect the integrity of the system; it can also ensure real-time performance and prevent damage to the integrity of the system in real time; and this method does not affect the use of the system by normal users as much as possible while protecting the integrity

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Embodiment Construction

[0040] figure 1 It is the structural diagram of the integrity protection model. The model is divided into two parts: inner core and outer core. The inner core is composed of integrity protection modules and system calls realized in the form of dynamic modules, and the outer core is composed of function libraries, command line tools and graphical tools. The integrity protection module mainly includes an integrity mark calculator and an integrity checker. The integrity mark calculator calculates the integrity mark of the subject or object according to the integrity logic relationship when creating or reading an object; Or the execution operation point judges whether the subject can operate the object according to the access control rules, and protects the integrity of the system. The integrity protection module provides the user layer with the functions of viewing the integrity marks of the subject and objects and setting the integrity marks of the objects by means of system ca...

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Abstract

The present invention discloses a data completeness protection method. Its technical scheme includes the following contents: defining completeness mark of object, its completeness logic relationship and access control rule and designing completeness protection model. The kernel interior of said model is formed from completeness protection module implemented by means of dynamic module mode and system call, and its kernel exterior is formed from functional library, command line tool and graphic tool. The completeness protection module includes completeness mark calculator and completeness surveyor. Said can effectively protect completeness of system.

Description

technical field [0001] The invention relates to a method for protecting data integrity in the field of computer information security, in particular to a method for protecting data integrity in an operating system kernel. Background technique [0002] Computer information security mainly includes the confidentiality, integrity and availability of information. With the continuous development of computer applications and networks, many organizations and institutions use computers for information processing, and the information stored in computers has become a huge asset for these units. The loss or destruction of these data will lead to huge loss of life and property. At the same time, the integrity protection of the computer system itself is also a necessary condition for the normal operation of the system. All in all, the integrity protection of information, especially the integrity protection of stored information is becoming more and more important. Integrity breaches ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/00
Inventor 唐晓东何连跃罗军
Owner NAT UNIV OF DEFENSE TECH
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