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System and method for fast starting TCPA/TCG safety computer

A safe computer, fast startup technology, applied in the direction of computing, program loading/starting, instruments, etc., can solve the problem of long computing time, etc., to achieve the effect of improving the startup speed

Active Publication Date: 2008-03-12
LENOVO (BEIJING) LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current computer data processing speed is getting faster and faster, and the startup time is getting shorter and shorter. However, due to the data processing capability of the embedded processor inside the TPM and the limitation of the bus speed between the TPM and the system, the summary calculation time is relatively long. Has become a bottleneck in improving secure computer boot speeds

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  • System and method for fast starting TCPA/TCG safety computer

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0019] On the basis of the prior art, the present invention sets a summary calculation module in the BIOS, which is used to perform summary calculation on the summary data required for summary calculation according to the summary algorithm, and save the summary calculation result in the memory for TPM transfer. Wherein, the digest algorithm here may adopt algorithms such as SHA-1 and MD5.

[0020] Summary data required for summary calculations may include: computer BIOS, optional memory data, and embedded memory data on the motherboard; system configuration, operating system bootloader, or computer operating state transition event encoded strings; or, optional memory configuration and its data and the bootstrap configuration and its data.

[0021] For the data that needs summary calculation, part of the summary calculation can be completed by the s...

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Abstract

A method for quickly starting up TCPA / TCG safety computer includes calling TPM by BIOS to carry out synoptic calculation on computer calculation module and storing calculated result into PCR register, carrying out synoptic calculation on synoptic data requiring to be synopsis - calculated by synoptic calculation module and storing calculated result into internal memory, carrying out synoptic calculation on synoptic data not requiring to be synopsis - calculated by TPM as per algorithm, calling TPM by BIOS to store calculated result in internal memory to PCR register and storing it into PCR register by TPM.

Description

technical field [0001] The present invention relates to a computer system and a control method thereof, in particular to a system and method for fast booting of a secure computer based on the TCPA / TCG (Trusted Computing Platform Alliance / Trusted Computer Group) architecture. Background technique [0002] With the widespread use of computers in various fields, people pay more and more attention to the safety performance of computers, and people use various methods to improve the safety performance of computers. Based on this requirement, the security chip architecture is introduced on the computer hardware platform, and the security of the terminal system is improved by providing security features. Simply put, it is reliability plus security. The trusted computing platform is based on TPM (Trusted Platform Module), supported by cryptographic technology and cored by a secure operating system, involving identity authentication, software and hardware configuration, application p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/445G06F1/00
Inventor 王晓文
Owner LENOVO (BEIJING) LTD
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