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Resource access method of Android system

An Android system and resource access technology, applied in the resource access field of Android system, can solve the problems of resource security and integrity threats, and achieve the effect of preventing access or even modification, and improving security and integrity.

Active Publication Date: 2015-11-11
CHINA STANDARD SOFTWARE
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for accessing resources of an Android system to solve the technical problem that the security and integrity of user resources may be threatened in the existing Android system

Method used

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  • Resource access method of Android system
  • Resource access method of Android system
  • Resource access method of Android system

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Embodiment Construction

[0034] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0035] In the prior art Android system, the system files are owned by the "system" or "root" user, wherein the root user is the Android system administrator. The root user has the supreme authority in the entire system, and it can access and modify almost all files in the mobile terminal, while other ordinary users do not have root authority by default. In an Android system that supports multiple users, supp...

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Abstract

The invention discloses a resource access method of an Android system, and belongs to the technical field of a mobile system. The resource access method of the Android system aims at solving the technical problem that in the existing Android system, the security and the completeness of resources of a user can be threatened. The resource access method of the Android system comprises the following steps of: sequentially performing DAC (Discretionary Access Control) permission checking and MAC (Mandatory Access Control) permission checking on a resource accessing process; if the process passes the DAC permission checking and the MAC permission checking, obtaining a security label of the process and a security label of the resources; matching the security label of the process and the security label of the resources; and if the security label of the process and the security label of the resources are matched, allowing the process to access the resources.

Description

technical field [0001] The present invention relates to the technical field of mobile systems, in particular to a method for accessing resources of an Android system. Background technique [0002] In recent years, mobile devices based on the Android (Android) system, such as smart phones, tablet computers, etc., are very popular. Various application software on the Android market enable these mobile devices to provide people with services similar to personal computers (PCs), and people increasingly use these devices to handle daily life and work affairs. Almost inevitably, people face the same security issues on these devices as they do on PCs. [0003] Therefore, the Android system introduces a security mechanism based on SELinux, called SEAndroid, to strengthen the security of the Android system. Role-based Access Control (RBAC for short) is a general security model, which is the core concept of SEAndroid. In the Android system with SELinux added, users are associated w...

Claims

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Application Information

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IPC IPC(8): G06F21/54G06F21/56G06F21/57
CPCG06F21/54G06F21/56G06F21/57G06F2221/2141
Inventor 郝美慈汤福朱健伟原丽苹葛林娜申利飞
Owner CHINA STANDARD SOFTWARE
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