Method for constructing STPM of android system

A platform module and construction method technology, applied in the field of information security, can solve problems such as no built-in security chip, achieve the effect of preventing flashing operations and expanding application scenarios

Active Publication Date: 2014-01-22
WUHAN UNIV
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Problems solved by technology

[0010] However, most embedded systems do not have built-in security chips

Method used

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  • Method for constructing STPM of android system
  • Method for constructing STPM of android system

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings of specific embodiments.

[0031] please see figure 1 , figure 2 , the technical solution adopted by the present invention is: a construction method of a soft-component trusted platform module (Soft-Component Trusted Platform Module, STPM) of the android system. The governance plan builds the STPM security module, and realizes the trusted storage, trusted measurement and three-layer key management functions of STPM in the android system; the specific implementation process is as follows:

[0032] Adopt storage isolation technology to realize write protection for important areas on Nand Flash including Bootloader partition, Kernel partition and PCR partition, prevent users from illegal flashing operations, and provide a reliable basic environment for trusted booting;

[0033] Optimize the Nand Flash partition, open up a transparent data storage area with a storage space...

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Abstract

The invention discloses a method for constructing an STPM of an android system. According to the dependable computing conception, on the basis that an existing handheld device hardware architecture is not changed, the TPM technology idea and the divide-and-conquer conception are adopted, and the functions of dependable storage, dependable measurement, three-layer key management and the like of the STPM are respectively achieved in the android system; the STPM is constructed to provide a basis for secondary safe development on mobile devices, and on the basis, developers can further achieve the development of various safety functions such as safe start of the system, measurement on start of upper-layer application programs and protection on private data of users. The method provides the basis for system safety of the mobile devices and privacy of the private data of the users from the bottom layer of the system. The method mainly has the advantage that the construction of the STPM overcomes the defect that the existing mobile devices lack a TPM and provides the basis for safe development of the mobile devices.

Description

technical field [0001] The invention belongs to the field of information security, and in particular relates to a method for constructing a soft-component trusted platform module (Soft-Component Trusted Platform Module, STPM) of an android system. Background technique [0002] In recent years, smart platform devices based on the Android system have become more and more popular due to their good openness, interactivity, friendly user experience, and platform convenience. Especially the rapid development in recent years has successfully extended Google's network application functions to personal handheld devices. However, as an open system, due to the flaws in its architecture design, it brings convenience to people, but also brings many security risks. The Android system implements isolation between applications through a sandbox (Sandbox), thereby controlling the access rights of each application to device resources. However, these security measures are far from meeting th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/74G06F21/62
CPCG06F21/57G06F21/575
Inventor 赵波费永康向騻纪祥敏
Owner WUHAN UNIV
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