Trusted computing measurement method and system and computer readable storage medium

A technology of trusted computing and measurement methods, applied in computer security devices, computing, instruments, etc., can solve problems such as data tampering, untrustworthy trusted computing, and data loss

Pending Publication Date: 2020-01-07
NATIONZ TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a trusted computing measurement method, its system, and a computer-readable storage medium, so as to solve the problem that data may still be tampered with in the current unidirectional trusted computing measurement method, resulting in untrustworthy trusted computing and data loss The problem

Method used

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  • Trusted computing measurement method and system and computer readable storage medium
  • Trusted computing measurement method and system and computer readable storage medium
  • Trusted computing measurement method and system and computer readable storage medium

Examples

Experimental program
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Embodiment 1

[0050] figure 1 For a flowchart of the trusted computing measurement method provided in Embodiment 1 of the present invention, please refer to figure 1 , the trusted computing measurement method provided by this embodiment includes the following steps:

[0051] S101: Detect whether the system is in a power-on state, if yes, perform step S102; otherwise, continue to detect the power-on state.

[0052] In this embodiment, the system here refers to a communication or terminal system including all components such as a trusted computing chip, a basic input output system, and a processor, and may also refer to a basic input output system.

[0053] The number of power supply units may be one or more. Preferably, only one power supply unit is selected in this embodiment, and this power supply unit is used to supply power to all units in the entire system, and here in When the system is powered on, all units in the system will be powered on, but the power-on status detected here is m...

Embodiment 2

[0086] figure 2 It is a schematic structural diagram of the trusted computing measurement system provided by the second embodiment of the present invention, please refer to figure 2 , the trusted computing measurement system 10 provided in this embodiment specifically includes: a trusted computing chip 11 , a basic input output system 12 and a processor 13 , wherein

[0087] The trusted computing chip 11 is used to perform high-level control on the reset signal of the processor 13 in the system when the trusted computing measurement system is powered on, and read the data stored in the basic input output system 12 of the system. For part or all of the code, the first metric check is performed on the part or all of the code according to a preset algorithm.

[0088] If the first metric verification passes, the trusted computing chip 11 controls the reset signal to reset the processor 13 and initialize the basic input output system 12 .

[0089] The basic input output system ...

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Abstract

The invention provides a trusted computing measurement method and system and a computer readable storage medium. High-potential control is carried out on a reset signal of a processor in a system before the system is powered on and a BIOS is initialized, so thata processor cannot be reset, according to a preset algorithm, the first measurement verification on codes in the BIOS can be carried out,and when the verification is passed, controlling a reset signal to reset the processor and initialize a BIOS, the second measurement verification is carried out on firmware in the trusted computing chip by the BIOS, and finally the control operation is carried out on the system according to a system starting strategy corresponding to a result of the second measurement verification. Through the mutual metric verification, the accuracy of metric calculation in the system is improved, the BIOS exception is judged in advance, the effective security control of the computer before the operating system is started is enhanced, and the problem that data is still tampered in an existing one-way trusted calculation metric mode is solved.

Description

technical field [0001] The present invention relates to the field of trusted computing, in particular to a trusted computing measurement method, its system, and a computer-readable storage medium. Background technique [0002] BIOS (Basic Input Output System) is an industry-standard firmware interface on an IBM PC compatible system. It is a set of programs solidified on a ROM chip on the motherboard of the computer. Important basic input and output programs, self-test programs after power-on and system self-starting programs, which can read and write specific information about system settings from CMOS. Its main function is to provide the computer with the lowest and most direct hardware setting and control. In addition, BIOS also provides some system parameters to the operating system. Changes to system hardware are hidden by the BIOS, and programs use BIOS functions instead of directly controlling the hardware. Modern operating systems ignore the abstraction layer provi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/57
CPCG06F21/575
Inventor 付月朋
Owner NATIONZ TECH INC
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