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UEFI system updating method based on updating security mechanism

A system update and security mechanism technology, applied in the direction of program control devices, instruments, platform integrity maintenance, etc., can solve the problems of inability to guarantee the update security, the lack of integrity and credibility of the update file detection mechanism, etc. The effect of compatibility

Inactive Publication Date: 2015-04-29
BEIJING UNIV OF TECH
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AI Technical Summary

Problems solved by technology

The data stored on the hard disk is extremely vulnerable to attack and tampering, especially when UEFI is updated. Since the update file can be obtained directly from the mobile storage device, there is no integrity and credibility detection mechanism for the update file, and it is impossible to guarantee the update time. security

Method used

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  • UEFI system updating method based on updating security mechanism
  • UEFI system updating method based on updating security mechanism
  • UEFI system updating method based on updating security mechanism

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Embodiment Construction

[0022] In order to make the above objects, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be described completely and in detail below in conjunction with the accompanying drawings of the present invention. The embodiments described below are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts are within the protection scope of the present invention.

[0023] For the distribution method in the security mechanism, it mainly adds some information to the update file, which is used in the verification method to verify the security of the update file. In the distribution method, the process of adding information to the update file is as follows: figure 1 As shown, the specific steps are as follows:

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Abstract

The invention discloses a UEFI system updating method based on an updating security mechanism and belongs to the field a computer software systems. The UEFI updating mechanism includes a distribution method and a verification method and is used for guaranteeing that the updating file loaded to a system is not tampered, cannot be illegally accessed and is compatible with hardware. A layer of outer-layer data whose security can be verified is encapsulated outside the updating file through the digital signature and encryption technology, a DXE driver is built in the verification method of the updating security mechanism to detect the outer-layer data, and accordingly whether the updating file is complete or, is tampered or not, is illegally used or not and is compatible with the hardware or not can be judged.

Description

technical field [0001] The invention belongs to the field of computer software systems, and in particular relates to a UEFI system update method based on an update security mechanism. Background technique [0002] UEFI (Unified Extensible Firmware Interface) is translated into Chinese as Unified Extensible Firmware Interface. It is a new generation of firmware system proposed by Intel to replace the traditional BIOS. UEFI BIOS has many advantages that the previous generation BIOS did not have, such as strong cross-platform compatibility, a graphical user interface that supports the mouse, modular-based scalability, and reduced development difficulty. These advantages of UEFI have led to the rapid development of UEFI BIOS, which has been pre-loaded into factory equipment by more and more manufacturers as the next-generation BIOS. At the same time, the rapid development of UEFI BIOS has also brought some urgent problems to be solved, especially the security problems. The fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/57G06F21/62G06F9/445
CPCG06F21/57G06F21/64G06F2221/2107
Inventor 张建标孙璠李梓实
Owner BEIJING UNIV OF TECH
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