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A trusted platform module protocol identification method and device

A platform module and protocol technology, which is applied in the field of trusted platform module protocol identification method and device, can solve the problems that the BIOS cannot obtain the protocol, only the BIOS can be modified, and the dual-protocol support of the TPM is low.

Active Publication Date: 2021-04-27
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An ideal server should support both LPC and SPI, but due to the limitation of TPM modularization, the BIOS cannot obtain the protocol supported by the TPM module used on the server. The existing technology is set to support one of them by default. Once the protocol needs to be replaced You can only modify the BIOS, which is very inconvenient
[0004] Aiming at the problems of low dual-protocol support and inconvenient operation of protocol switching in TPM in the prior art, there is no effective solution yet

Method used

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  • A trusted platform module protocol identification method and device
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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0028] It should be noted that all the expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same. It can be seen that "first" and "second " is only for the convenience of expression, and should not be understood as a limitation to the embodiments of the present invention, and will not be described one by one in the subsequent embodiments.

[0029] Based on the above purpose, the first aspect of the embodiments of the present invention proposes an embodiment of a method capable of automatically identifying and switching different TPM protocols or different types of TPM p...

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Abstract

The invention discloses a trusted platform module protocol identification method and device, comprising: detecting the physical presence signal of the trusted platform module using the SPI protocol through a complex programmable logic device; making the complex programmable logic device detect the physical presence signal according to the physical presence signal Send the SPI protocol strobe signal to the platform path controller; make the platform path controller selectively load the startup file of the trusted platform module using the SPI protocol or the LPC protocol according to the SPI protocol strobe signal and thus start the trusted platform module. The technical scheme of the present invention can automatically identify and switch different TPM protocols or different types of TPM protocols, thereby improving compatibility, simplifying operations, and improving work efficiency.

Description

technical field [0001] The present invention relates to the computer field, and more specifically, relates to a trusted platform module protocol identification method and device. Background technique [0002] In the server security arena, more and more servers support Trusted Platform Modules (TPMs). TPM makes the encryption chip into a module form, which can be used by connecting the corresponding signal with the specified connector on the server motherboard, which can effectively protect the computer from illegal user access. [0003] TPM can not only ensure that the BIOS password is kept without battery, but also can save the boot and hard disk password for a long time. Currently, the TPM used on the server mainly supports the LPC protocol and the SPI protocol. For the server, the TPM supporting LPC and supporting SPI needs to load the respective corresponding loading files in the BIOS when starting. An ideal server should support both LPC and SPI, but due to the limit...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/42G06F9/4401
Inventor 梁超赵现普
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD