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Mandatory access control device based on Android platform and control method thereof

A mandatory access control and platform technology, which is applied in the direction of computer security devices, instruments, program/content distribution protection, etc., can solve the problem that the security of the Android platform cannot be fully guaranteed, and achieve the effect of realizing the mandatory access control function

Inactive Publication Date: 2011-03-30
SUZHOU LINGXIAO TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a mandatory access control device based on the Android platform, which solves the problems that the security of the Android platform cannot be fully guaranteed due to the fact that the Android smart platform only adopts two layers of security mechanisms in the prior art.

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  • Mandatory access control device based on Android platform and control method thereof
  • Mandatory access control device based on Android platform and control method thereof
  • Mandatory access control device based on Android platform and control method thereof

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specific Embodiment approach

[0044] The following embodiments have specifically realized the security hardening process based on Android, and the basic technical solution it adopts is as described above, including: a Hook module and a security server, and the specific framework of the system is as follows: figure 1 shown. The Hook module is used to intercept the access request of the operating system to the kernel object, and provides it to the security server for security judgment. The Hook module provides a class of Hook functions so as to intercept important system calls. The Hook function is essentially an Android system kernel source code. Add some APIs with arbitration functions, such as figure 2 As shown, these Hook functions are added after the execution of Linux autonomous access control and before the execution of kernel object access functions, so that the function of mandatory access control can be realized. The security server includes an object manager and a policy manager, and the functio...

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Abstract

The invention discloses a mandatory access control device based on an Android platform and a control method thereof. The device comprises a security server and is characterized in that an HOOK module communicated with the security server is embedded in the kernel of the Android platform for intercepting an access request of an operation system process to a kernel object, and the access request is provided for the security server for security judgement; and the HOOK module controls whether the access request is permitted or not according to the security judgement result of the security server. The invention does not allow a subject to interfere an access control strategy, determines whether access is permitted or not by comparing the security label of the subject and an object and has higher security than own two-layer security mechanism of the Android system.

Description

technical field [0001] The invention belongs to the technical field of smart phone security, and relates to a security reinforcement method for an Android system, in particular to a mandatory access control device and a control method based on an Android platform, which can realize mandatory access control to the Android system. Background technique [0002] At present, smart phones are becoming more and more popular, and there are many types of smart phone operating systems. Among them, the mobile phone operating system Android proposed by Google has attracted widespread attention in the industry, and has become more and more popular, and has derived Android cores such as Ophone and Lephone. smartphone operating system, because it is of great significance to the security reinforcement of the Android system. The Android system itself adopts a two-layer security mechanism. First, Android is based on the Linux kernel. Therefore, it inherits the user-based autonomous access con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L29/06G06F21/22G06F21/10
Inventor 杨峰李桄宇谢婧李国强辛丘纬
Owner SUZHOU LINGXIAO TECH
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