CN106557700B - A kind of gauging system and method for trusted computer - Google Patents
A kind of gauging system and method for trusted computer Download PDFInfo
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- CN106557700B CN106557700B CN201611058840.9A CN201611058840A CN106557700B CN 106557700 B CN106557700 B CN 106557700B CN 201611058840 A CN201611058840 A CN 201611058840A CN 106557700 B CN106557700 B CN 106557700B
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- trusted computer
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
- G06F21/57—Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
- G06F21/577—Assessing vulnerabilities and evaluating computer system security
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- Computer Security & Cryptography (AREA)
- General Engineering & Computer Science (AREA)
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- Storage Device Security (AREA)
Abstract
The invention discloses a kind of gauging systems and method for trusted computer, the system includes: the credible measurement portion in trusted computer and the OPROM calibration equipment that connect with trusted computer, OPROM calibration equipment be used to store the data progress Hash verification in mainboard SPI Flash to trusted computer OPROM check information and corresponding check results；Credible measurement portion carries out Hash verification to the data in the mainboard SPI Flash of trusted computer for reading and replicating OPROM check information, according to OPROM check information, and corresponding check results are stored to OPROM calibration equipment.OPROM check information is stored using external OPROM calibration equipment, to be verified to the data in the SPI Flash in trust computing mainboard, and store corresponding check results, after trusted computer enters operating system, user can be directly viewable the check results of record, and be not necessarily to modify to mainboard BIOS during this and modify without to hardware, it is convenient to realize, reduces additional hardware cost.
Description
Technical field
The present invention relates to reliable computing technology fields, more particularly to a kind of gauging system for trusted computer and side
Method.
Background technique
With the development of information technology, in order to guarantee to calculate the safety with communication system entirety, in calculating and communication system
Trust computing is introduced in system, trust computing is being calculated and is being widely used in communication system based under hardware security module support
Credible calculating platform.
Since the 1970s, many trust computings are proposed from application program, operating system and hardware view
Platform, but wherein most practical is credible calculating platform based on hardware platform.Trust computing purpose is to ensure row
It for safety, and proposes that one kind can surmount default safety regulation, executes the run entity of special behavior.Due to computer network
The continuous development of application, computer information safe problem emerge one after another, and taking other technologies means all will be difficult to make up due to meter
Safety defect existing for calculation machine itself and insincere factor give information security bring hidden danger.Therefore, it goes to develop from hardware view
Trusted computer is really to realize the developing direction of trust computing at present.In existing trusted computer platform, in order to protect
The secure and trusted of credible calculating platform is demonstrate,proved, needs to measure the BIOS etc. of hardware system mainboard.But in existing measurement
In scheme, generally involves the modification to the BIOS of hardware system mainboard or is related to the modification to hardware to complete to measure,
This improves the hardware cost of measurement.
Thus, how when carrying out credible and secure measurement to the hardware system in calculating and communication system, avoid being related to pair
The BIOS or hardware of mainboard modify, and are that those skilled in the art need to solve at present to reduce additional hardware cost
The technical issues of.
Summary of the invention
It, can be to calculating and logical the object of the present invention is to provide a kind of gauging system and method for trusted computer
When hardware system in letter system carries out credible and secure measurement, avoid being related to modifying to the BIOS or hardware of mainboard, with
Reduce additional hardware cost.
In order to solve the above technical problems, the present invention provides the following technical scheme that
A kind of gauging system for trusted computer, comprising: credible measurement portion in trusted computer and with institute
The OPROM calibration equipment of trusted computer connection is stated,
Wherein, the OPROM calibration equipment be used to store the data in mainboard SPI Flash to the trusted computer into
The OPROM check information of row Hash verification and corresponding check results；
The credible measurement portion is for reading and replicating the OPROM check information, according to the OPROM check information pair
Data in the mainboard SPI Flash of the trusted computer carry out Hash verification, and corresponding check results are stored to described
OPROM calibration equipment.
Preferably, the OPROM calibration equipment is PCIe card, and the PCIe card passes through PCIE bus and the trust computing
Machine connection.
Preferably, the credible measurement portion includes:
BIOS module for booting up self-test when the trusted computer powers on, and scans the PCIE bus, reads
Take and replicate the OPROM check information；
Memory portion, for storing the OPROM check information of the BIOS module duplication；
Execution module, for according to the OPROM check information stored in the memory portion to the trusted computer
Mainboard SPI Flash in data carry out Hash verification, and corresponding check results are stored into the PCIe card.
Preferably, the BIOS module includes:
Self-test unit, for booting up self-test when the trusted computer powers on；
Whether detection unit detects in the PCIe card for scanning the PCIE bus comprising OPROM verification letter
Breath when in the PCIe card comprising the OPROM check information, is written the OPROM base address register of the PCIe card
Free address in the system address space of one trusted computer；
Reading unit, for reading the content at the base address OPROM, judge reading value two bytes of head whether be
0x55AA；
Copied cells, when for determining two bytes of head of the reading value for 0x55AA in the reading unit, duplication
OPROM check information in the PCIe card is to the memory portion.
A kind of measure for trusted computer, comprising:
Read the mainboard being used for the trusted computer in the OPROM calibration equipment being arranged in trusted computer
Data in SPI Flash carry out the OPROM check information of Hash verification；
The OPROM check information is replicated into the memory of the trusted computer；
The school Hash is carried out to the data in the mainboard SPI Flash of the trusted computer according to the OPROM check information
It tests；
The Hash is verified corresponding check results to store into the OPROM calibration equipment.
Preferably, it reads in the OPROM calibration equipment being arranged in trusted computer and is used for the trusted computer
Mainboard SPI Flash in data carry out Hash verification OPROM check information, comprising:
Obtain the power on signal of the trusted computer；
The PCIE bus in the trusted computer is scanned, the OPROM calibration equipment in the PCIE bus is detected；
Whether judge in the OPROM calibration equipment comprising the OPROM check information；
If so, the trusted computer is written in the OPROM base address register to the OPROM calibration equipment
Free address in system address space；
Read the content at the base address OPROM of the base address register of the OPROM calibration equipment；
Whether the byte for judging the predeterminated position of reading value is preset value；
If so, extracting the OPROM check information；
If it is not, then sending starting triggering command to the operating system of the trusted computer.
Preferably, whether the byte of the predeterminated position for judging reading value is preset value, are as follows:
Whether two bytes of head for judging the reading value are 0x55AA.
Compared with prior art, above-mentioned technical proposal has the advantage that
The gauging system of trusted computer is used for provided by the embodiment of the present invention, comprising: in trusted computer
Credible measurement portion and the OPROM calibration equipment connecting with trusted computer, OPROM calibration equipment is for storing to trusted computer
Mainboard SPI Flash in data carry out Hash verification OPROM check information and corresponding check results；Credible measurement
Portion is for reading and replicating OPROM check information, according to OPROM check information in the mainboard SPI Flash of trusted computer
Data carry out Hash verification, and corresponding check results are stored to OPROM calibration equipment.It is external using trusted computer
OPROM calibration equipment stores OPROM check information, for carrying out to the data in the SPI Flash in trust computing mainboard
Verification, and corresponding check results are stored, in this way after trusted computer enters operating system, user can be directly viewable
The check results recorded in OPROM calibration equipment are completed the purpose of OPROM metric computer, and are not necessarily to during this to mainboard
BIOS modifies to modify without to hardware, and it is convenient to realize, reduces additional hardware cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the gauging system structural representation that trusted computer is used for provided by a kind of specific embodiment of the present invention
Figure；
Fig. 2 is the measure flow chart that trusted computer is used for provided by a kind of specific embodiment of the present invention.
Specific embodiment
Core of the invention is to provide a kind of gauging system and method for trusted computer, can be to calculating and logical
When hardware system in letter system carries out credible and secure measurement, avoid being related to modifying to the BIOS or hardware of mainboard, with
Reduce additional hardware cost.
It is understandable in order to enable the above objects, features and advantages of the present invention to become apparent, with reference to the accompanying drawing to this hair
Bright specific embodiment is described in detail.
Detail is elaborated in the following description to fully understand the present invention.But the present invention can with it is a variety of not
Other way described herein is same as to implement, those skilled in the art can do class without violating the connotation of the present invention
Like popularization.Therefore the present invention is not limited by following public specific embodiment.
Referring to FIG. 1, Fig. 1 is the gauging system for being used for trusted computer provided by a kind of specific embodiment of the present invention
Structural schematic diagram.
A kind of specific embodiment of the invention provides a kind of gauging system for trusted computer, comprising: is located at
Credible measurement portion 1 in trusted computer and the OPROM calibration equipment 2 being connect with trusted computer, wherein OPROM verification is set
Standby 2 data for storing in the mainboard SPI Flash to trusted computer carry out the OPROM check information of Hash verification, and
Corresponding check results；Credible measurement portion 1 is for reading and replicating OPROM check information, according to OPROM check information to credible
Data in the mainboard SPI Flash of computer carry out Hash verification, and corresponding check results are stored to OPROM calibration equipment
2.In the present embodiment, OPROM calibration equipment 2 is preferably PCIe card, and PCIe card is connected by PCIE bus and trusted computer
It connects.
In the present embodiment, it is loaded into using OPROM calibration equipment in the SPI memory to the mainboard of trusted computer
The check information that data are verified can get rid of the space limitation of trusted computer ROM.It is credible when being carried out to trusted computer
When measurement, it is only necessary to read and replicate OPROM verification from OPROM calibration equipment by the credible measurement portion in trusted computer
Information, and Hash verification is carried out to the data in the mainboard SPI Flash of trusted computer according to the OPROM check information, in school
Corresponding check results are stored to OPROM calibration equipment after the completion of testing.In this way, working as the os starting of trusted computer
Afterwards, only need to operate trusted computer checks that OPROM calibration equipment memory can view the check results.This programme passes through
OPROM measures computer, and it is convenient to realize, and modifies without modifying to mainboard BIOS without to hardware,
Reduce additional hardware cost.
It should be noted that so-called OPROM refers to expansion ROM, i.e., one group is stored in PCIE device card memory
Firmware program, this group of program can be called during startup self-detection by the system bios of host.
On the basis of the above embodiment, in one embodiment of the invention, credible measurement portion includes:
BIOS module for booting up self-test when trusted computer powers on, and scans PCIE bus, reads and replicates
OPROM check information；
Memory portion, for storing the OPROM check information of BIOS module duplication；
Execution module, for the mainboard SPI Flash according to the OPROM check information stored in memory portion to trusted computer
In data carry out Hash verification, and corresponding check results are stored into PCIe card.
Wherein, BIOS module includes:
Self-test unit, for booting up self-test when trusted computer powers on；
Detection unit, for scanning PCIE bus, whether include OPROM check information, in PCIe card if detecting in PCIe card
In when including OPROM check information, the OPROM base address register of PCIe card is written the system address of a trusted computer
Free address in space；
Reading unit, for reading the content at the base address OPROM, judge reading value two bytes of head whether be
0x55AA；
Copied cells when for determining two bytes of head of reading value in reading unit for 0x55AA, replicate in PCIe card
OPROM check information to memory portion.
In the present embodiment, the basic input output system in BIOS module, that is, computer is one group and is cured to meter
The program on a rom chip of mainboard is calculated, this group of program includes the program of the most important basic input and output of computer, opens
Machine self-check program and system self-triggered program.The major function of BIOS is that the bottom, most direct hardware are provided for computer
It is set and controlled.
When trusted computer powers on and starts, the self-test unit in BIOS module starts startup self-detection；Then detection is single
Member scanning PCIE bus is to check the PCIe card in bus；Whether include OPROM check information, in this implementation if detecting in PCIe card
OPROM check information includes OPROM program and Hash checking algorithm in mode, and configuration address is to the base OPROM of PCIe card
Location register；Then reading unit read the base address OPROM at content, judge reading value two bytes of head whether be
0x55AA；If two bytes of the head of reading value are not 0x55AA, the inspection to OPROM is skipped, and then continues to start credible meter
The operating system of calculation machine；If two bytes of the head of reading value are 0x55AA, copied cells replicate the OPROM verification in PCIe card
Information copies to OPROM check information in the free memory inside trusted computer, to memory portion then in trust computing
OPROM program is executed in the memory of machine, OPROM program is according to preset Hash checking algorithm in computer motherboard SPI Flash
Data carry out Hash verification, and corresponding check results are stored in the memory of PCIe card, at this point, BIOS module will be credible
The control of computer gives the operating system of computer, and the operating system of computer starts to start, and enters operation in computer
After system, the operation for responding user can check the memory of PCIe card, to obtain check results.
Referring to FIG. 2, Fig. 2 is the measure for being used for trusted computer provided by a kind of specific embodiment of the present invention
Flow chart.
Correspondingly, one embodiment of the present invention additionally provides a kind of measure for trusted computer, comprising:
S11: the mainboard being used for trusted computer in the OPROM calibration equipment being arranged in trusted computer is read
Data in SPI Flash carry out the OPROM check information of Hash verification.
Wherein, the mainboard being used for trusted computer in the OPROM calibration equipment being arranged in trusted computer is read
Data in SPI Flash carry out the OPROM check information of Hash verification, comprising:
The power on signal for obtaining trusted computer, boots up self-test to control trusted computer；
The PCIE bus in trusted computer is scanned, the OPROM calibration equipment in PCIE bus is detected；
Whether judge in OPROM calibration equipment comprising OPROM check information；
If so, the OPROM base address register of OPROM calibration equipment is written the system address of a trusted computer
Free address in space；
Read the content at the base address OPROM of the base address register of OPROM calibration equipment；
Whether the byte for judging the predeterminated position of reading value is preset value, and preferably the preset value is 0x55AA；
If so, extracting OPROM check information；
If it is not, then sending starting triggering command to the operating system of trusted computer.
S12: duplication OPROM check information is into the memory of trusted computer.
S13: Hash verification is carried out to the data in the mainboard SPI Flash of trusted computer according to OPROM check information.
S14: Hash is verified into corresponding check results and is stored into OPROM calibration equipment.
In the present embodiment, in the computer booting self-test stage, letter is verified by the OPROM in OPROM calibration equipment
Breath verifies the data in SPI Flash on computer motherboard, and check results is stored on OPROM calibration equipment, In
Computer can check the record in OPROM calibration equipment after entering operating system to obtain check results, complete OPROM measurement
The purpose of computer measures computer by OPROM, and it is convenient to realize, and without to mainboard BIOS modify also without
It need to modify to hardware, reduce additional hardware cost.
In conclusion the gauging system and method provided by the present invention for trusted computer, is set by OPROM verification
OPROM check information in standby verifies the data in SPI Flash on computer motherboard, and check results are stored in
On OPROM calibration equipment, the record in OPROM calibration equipment can be checked to be verified after computer enters operating system
As a result, being measured by OPROM to computer, it is convenient to realize, and without modifying mainboard BIOS without to hardware
It modifies, reduces additional hardware cost.
A kind of gauging system and method for trusted computer provided by the present invention is described in detail above.This
Apply that a specific example illustrates the principle and implementation of the invention in text, the explanation of above example is only intended to
Help understands the present invention and its core concept.It should be pointed out that for those skilled in the art, not departing from
, can be with several improvements and modifications are made to the present invention under the premise of the principle of the invention, these improvement and modification also fall into this hair
In bright scope of protection of the claims.
Claims (2)
1. a kind of gauging system for trusted computer characterized by comprising the credible measurement in trusted computer
Portion and the OPROM calibration equipment being connect with the trusted computer,
Wherein, the data that the OPROM calibration equipment is used to store in the mainboard SPI Flash to the trusted computer carry out
The OPROM check information of Hash verification and corresponding check results；
The credible measurement portion is for reading and replicating the OPROM check information, according to the OPROM check information to described
Data in the mainboard SPI Flash of trusted computer carry out Hash verification, and corresponding check results are stored to the OPROM
Calibration equipment；
The OPROM calibration equipment is PCIe card, and the PCIe card is connected by PCIE bus with the trusted computer；
The credible measurement portion includes:
BIOS module for booting up self-test when the trusted computer powers on, and scans the PCIE bus, read and
Replicate the OPROM check information；
Memory portion, for storing the OPROM check information of the BIOS module duplication；
Execution module, for the master according to the OPROM check information stored in the memory portion to the trusted computer
Data in plate SPI Flash carry out Hash verification, and corresponding check results are stored into the PCIe card；
The BIOS module includes:
Self-test unit, for booting up self-test when the trusted computer powers on；
Detection unit, whether for scanning the PCIE bus, detecting in the PCIe card includes the OPROM check information,
When including the OPROM check information in the PCIe card, one is written to the OPROM base address register of the PCIe card
Free address in the system address space of the trusted computer；
Reading unit judges whether two bytes of head of reading value are 0x55AA for reading the content at the base address OPROM；
Copied cells, when for determining two bytes of head of the reading value for 0x55AA in the reading unit, described in duplication
OPROM check information in PCIe card is to the memory portion.
2. a kind of measure for trusted computer characterized by comprising
Read the mainboard SPI Flash being used for the trusted computer in the OPROM calibration equipment connecting with trusted computer
In data carry out Hash verification OPROM check information；
The OPROM check information is replicated into the memory of the trusted computer；
Hash verification is carried out to the data in the mainboard SPI Flash of the trusted computer according to the OPROM check information；
The Hash is verified corresponding check results to store into the OPROM calibration equipment；
Read the mainboard SPI Flash being used for the trusted computer in the OPROM calibration equipment connecting with trusted computer
In data carry out Hash verification OPROM check information, comprising:
Obtain the power on signal of the trusted computer；
The PCIE bus in the trusted computer is scanned, the OPROM calibration equipment in the PCIE bus is detected；
Whether judge in the OPROM calibration equipment comprising the OPROM check information；
If so, the system that a trusted computer is written to the OPROM base address register of the OPROM calibration equipment
Free address in address space；
Read the content at the base address OPROM of the base address register of the OPROM calibration equipment；
Whether the byte for judging the predeterminated position of reading value is preset value；
If so, extracting the OPROM check information；
If it is not, then sending starting triggering command to the operating system of the trusted computer；
Whether the byte of the predeterminated position for judging reading value is preset value, are as follows:
Whether two bytes of head for judging the reading value are 0x55AA.
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| CN107729354B (en) * | 2017-08-30 | 2021-08-10 | 晶晨半导体(上海)股份有限公司 | Picture ordering method and system |
| CN110245495B (en) * | 2018-03-09 | 2023-05-26 | 阿里巴巴集团控股有限公司 | BIOS checking method, configuration method, device and system |
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| CN101515316B (en) * | 2008-02-19 | 2011-09-28 | 北京工业大学 | Trusted computing terminal and trusted computing method |
| CN102063591B (en) * | 2011-01-07 | 2012-08-08 | 北京工业大学 | Methods for updating PCR (Platform Configuration Register) reference values based on trusted platform |
| CN202362788U (en) * | 2011-11-21 | 2012-08-01 | 国民技术股份有限公司 | Dependable computing device with USB (Universal Serial Bus) interfaces |
| CN102693385A (en) * | 2012-05-28 | 2012-09-26 | 山东神思电子技术股份有限公司 | Embedded terminal based on SD (secure digital) trusted computing module and implementation method thereof |
| CN104331666A (en) * | 2014-11-10 | 2015-02-04 | 成都卫士通信息产业股份有限公司 | Trusted measurement method for computer systems |
| CN105303094B (en) * | 2015-05-07 | 2016-11-09 | 同方计算机有限公司 | The safety of a kind of USB main control chip is from check system and from proved recipe method |
| CN105160255A (en) * | 2015-08-06 | 2015-12-16 | 浪潮电子信息产业股份有限公司 | Trustworthy measurement apparatus and method |
| CN106127057A (en) * | 2016-06-23 | 2016-11-16 | 浪潮电子信息产业股份有限公司 | A kind of method building credible startup control based on TPM |
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