CN109753473A - A kind of reliable platform module protocol recognition method and device - Google Patents
A kind of reliable platform module protocol recognition method and device Download PDFInfo
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- CN109753473A CN109753473A CN201910018819.3A CN201910018819A CN109753473A CN 109753473 A CN109753473 A CN 109753473A CN 201910018819 A CN201910018819 A CN 201910018819A CN 109753473 A CN109753473 A CN 109753473A
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Abstract
The invention discloses a kind of reliable platform module protocol recognition method and devices, comprising: uses the physics signal in place of the reliable platform module of SPI protocol by Complex Programmable Logic Devices detection；Complex Programmable Logic Devices is set to send SPI protocol gating signal to platform path controller according to physics signal in place；Make platform path controller and selectively loads the startup file of using SPI protocol or LPC agreement reliable platform module according to SPI protocol gating signal and thus start reliable platform module.Technical solution of the present invention can improve compatibility, simplify operating quantity, improve working efficiency for different TPM agreements or different types of TPM agreement come automatic identification and switching.
Description
Technical field
The present invention relates to computer fields, and more specifically, know more particularly to a kind of reliable platform module agreement
Other method and apparatus.
Background technique
In server security field, more and more servers support reliable platform module (TPM).TPM will encrypt core
Piece is made into modular form, and connecting corresponding signal using specified connector on server master board can use, can be effective
Ground protection computer prevents unauthorized users to access.
TPM can not only guarantee that BIOS password is kept under no cell condition, and can save for a long time booting and
Harddisk password.The agreement that the TPM used on server at present is mainly supported is LPC agreement and SPI protocol.Server is come
It says, support LPC and the TPM of SPI is supported to need to load respective corresponding load document on startup in BIOS.Clothes in ideal
Business device should all support LPC and SPI, but since the modularization of TPM limits, BIOS can not be obtained on server and be used
TPM module support agreement, the prior art be set as default support one of them, can only be repaired if needing replacing agreement
Change BIOS, it is very inconvenient.
For TPM in the prior art double agreement supports are low, problem that protocol switching is inconvenient, there has been no have at present
The solution of effect.
Summary of the invention
In view of this, the purpose of the embodiment of the present invention is to propose a kind of reliable platform module protocol recognition method and dress
It sets, can improve compatibility for different TPM agreements or different types of TPM agreement come automatic identification and switching, simplify operation
Amount improves working efficiency.
Based on above-mentioned purpose, the one side of the embodiment of the present invention provides a kind of reliable platform module protocol identification side
Method, comprising the following steps:
The physics signal in place of the reliable platform module of SPI protocol is used by Complex Programmable Logic Devices detection；
Complex Programmable Logic Devices is set to send SPI protocol gating letter to platform path controller according to physics signal in place
Number；
Make platform path controller and selectively loads using SPI protocol or LPC association according to SPI protocol gating signal
Thus the startup file of the reliable platform module of view simultaneously starts reliable platform module.
It in some embodiments, the use of the reliable platform module of SPI protocol include that electricity is connected to by pull-up resistor
The pull-up level of potential source and the first reserved outlet of ground connection；Physics signal in place is existed using the reliable platform module of SPI protocol
It is sent and being connected to pull-up level when position, and is passed through when not in place using the reliable platform module of SPI protocol
It is connected to the first reserved outlet and is sent.
In some embodiments, Complex Programmable Logic Devices includes second reserved outlet with pull down resistor, complicated
Programmable logic device receives physics signal in place by the second reserved outlet；Second reserved outlet is using the credible of SPI protocol
The physics signal in place that level output will be pulled up when relying console module in place under the action of pull down resistor divides as high level, and
And the level of the first reserved outlet is read as low level when not in place using the reliable platform module of SPI protocol.
In some embodiments, voltage source is 3.3V DC voltage source, and pull-up resistor is 10 kilohms, and pull down resistor is
100 kilohms.
In some embodiments, make Complex Programmable Logic Devices according to physics signal in place to platform path controller
Sending SPI protocol gating signal, to include: Complex Programmable Logic Devices use SPI protocol in response to physics signal designation in place
Reliable platform module is in place and the SPI protocol gating signal of high level is sent to platform path controller, and in response to object
Signal designation in place is managed to use the reliable platform module of SPI protocol not in place and send to platform path controller low level
SPI protocol gating signal.
In some embodiments, make platform path controller selectively to load according to SPI protocol gating signal
With the startup file of SPI protocol or LPC agreement reliable platform module and thus starting reliable platform module includes: flat
Platform path controller loads the reliable platform using SPI protocol in response to receiving the SPI protocol gating signal of high level
The startup file of module, and load in response to receiving low level SPI protocol gating signal using the credible of LPC agreement
Rely the startup file of console module.
In some embodiments, platform path controller is connected to SPI protocol file connector and LPC document of agreement connects
Connect device；Platform path controller selectively obtains startup file from SPI protocol file connector or LPC document of agreement connector
And load the startup file.
The another aspect of the embodiment of the present invention additionally provides a kind of reliable platform module protocol identification device, comprising:
Reliable platform module, including using SPI protocol or LPC agreement reliable platform module；
Complex Programmable Logic Devices, is connected to reliable platform module, and detection uses the reliable platform mould of SPI protocol
The physics of block signal in place simultaneously issues SPI protocol gating signal according to physics signal in place；
Platform path controller is connected to Complex Programmable Logic Devices, obtains SPI protocol gating signal, and accordingly select
Load to selecting property the startup file of using SPI protocol or LPC agreement reliable platform module.
It in some embodiments, the use of the reliable platform module of SPI protocol include that electricity is connected to by pull-up resistor
The pull-up level of potential source and the first reserved outlet of ground connection；Physics signal in place is existed using the reliable platform module of SPI protocol
It is sent and being connected to pull-up level when position, and is passed through when not in place using the reliable platform module of SPI protocol
It is connected to the first reserved outlet and is sent；
Complex Programmable Logic Devices includes second reserved outlet with pull down resistor, and Complex Programmable Logic Devices passes through
Second reserved outlet receives physics signal in place；Second reserved outlet using SPI protocol reliable platform module it is in place when
The physics signal in place that level output will be pulled up under the action of pull down resistor divide as high level, and in use SPI protocol
The level of first reserved outlet is read as low level when reliable platform module is not in place.
The another aspect of the embodiment of the present invention additionally provides a kind of server, assists with above-mentioned reliable platform module
Discuss identification device.
The present invention has following advantageous effects: reliable platform module protocol identification side provided in an embodiment of the present invention
Method and device use the physics signal in place of the reliable platform module of SPI protocol by Complex Programmable Logic Devices detection,
So that Complex Programmable Logic Devices is sent SPI protocol gating signal to platform path controller according to physics signal in place, makes to put down
Platform path controller selectively loads using SPI protocol or LPC agreement believable flat according to SPI protocol gating signal
The startup file of platform module and the technical solution for thus starting reliable platform module, can be directed to different TPM agreements or difference
The TPM agreement of type comes automatic identification and switching, improves compatibility, simplifies operating quantity, improves working efficiency.
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 only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other embodiments are obtained according to these attached drawings.
Fig. 1 is the flow diagram of reliable platform module protocol recognition method provided by the invention；
Fig. 2 is the structural schematic diagram of reliable platform module protocol recognition method provided by the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
The embodiment of the present invention is further described in attached drawing.
It should be noted that all statements for using " first " and " second " are for differentiation two in the embodiment of the present invention
The non-equal entity of a same names or non-equal parameter, it is seen that " first ", " second " do not answer only for the convenience of statement
It is interpreted as the restriction to the embodiment of the present invention, subsequent embodiment no longer illustrates this one by one.
Based on above-mentioned purpose, the first aspect of the embodiment of the present invention, propose one kind can for different TPM agreements or
Different types of TPM agreement carrys out the embodiment of the method for automatic identification and switching.Shown in fig. 1 is provided by the invention believable
The flow diagram of the embodiment of console module protocol recognition method.
The reliable platform module protocol recognition method, comprising the following steps:
Step S101 uses the physics of the reliable platform module of SPI protocol by Complex Programmable Logic Devices detection
Signal in place；
Step S103 makes Complex Programmable Logic Devices send SPI to platform path controller according to physics signal in place
Agreement gating signal；
Step S105 makes platform path controller according to SPI protocol gating signal selectively to load using SPI protocol
Or LPC agreement reliable platform module startup file and thus start reliable platform module.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, Ke Yitong
Computer program is crossed to instruct related hardware and complete, the program can be stored in a computer-readable storage medium,
The program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can for magnetic disk,
CD, read-only memory (ROM) or random access memory (RAM) etc..The embodiment of the computer program, Ke Yida
The effect identical or similar to corresponding aforementioned any means embodiment.
It in some embodiments, the use of the reliable platform module of SPI protocol include that electricity is connected to by pull-up resistor
The pull-up level of potential source and the first reserved outlet of ground connection；Physics signal in place is existed using the reliable platform module of SPI protocol
It is sent and being connected to pull-up level when position, and is passed through when not in place using the reliable platform module of SPI protocol
It is connected to the first reserved outlet and is sent.
In some embodiments, Complex Programmable Logic Devices includes second reserved outlet with pull down resistor, complicated
Programmable logic device receives physics signal in place by the second reserved outlet；Second reserved outlet is using the credible of SPI protocol
The physics signal in place that level output will be pulled up when relying console module in place under the action of pull down resistor divides as high level, and
And the level of the first reserved outlet is read as low level when not in place using the reliable platform module of SPI protocol.
In some embodiments, voltage source is 3.3V DC voltage source, and pull-up resistor is 10 kilohms, and pull down resistor is
100 kilohms.
Disclosed method is also implemented as the computer program executed by CPU, the calculating according to embodiments of the present invention
Machine program may be stored in a computer readable storage medium.When the computer program is executed by CPU, executes the present invention and implement
The above-mentioned function of being limited in method disclosed in example.Above method step also can use controller and for storing so that controlling
Device realizes that the computer readable storage medium of the computer program of above-mentioned steps function is realized.
In some embodiments, make Complex Programmable Logic Devices according to physics signal in place to platform path controller
Sending SPI protocol gating signal, to include: Complex Programmable Logic Devices use SPI protocol in response to physics signal designation in place
Reliable platform module is in place and the SPI protocol gating signal of high level is sent to platform path controller, and in response to object
Signal designation in place is managed to use the reliable platform module of SPI protocol not in place and send to platform path controller low level
SPI protocol gating signal.
In some embodiments, make platform path controller selectively to load according to SPI protocol gating signal
With the startup file of SPI protocol or LPC agreement reliable platform module and thus starting reliable platform module includes: flat
Platform path controller loads the reliable platform using SPI protocol in response to receiving the SPI protocol gating signal of high level
The startup file of module, and load in response to receiving low level SPI protocol gating signal using the credible of LPC agreement
Rely the startup file of console module.
In some embodiments, platform path controller is connected to SPI protocol file connector and LPC document of agreement connects
Connect device；Platform path controller selectively obtains startup file from SPI protocol file connector or LPC document of agreement connector
And load the startup file of using SPI protocol or LPC agreement reliable platform module.
In some embodiments, this method is applied to server.
The various illustrative steps in conjunction with described in disclosure herein may be implemented as electronic hardware, computer software or
The combination of the two.In order to clearly demonstrate this interchangeability of hardware and software, with regard to the function of various illustrated steps
General description has been carried out to it.This function be implemented as software be also implemented as hardware depending on concrete application with
And it is applied to the design constraint of whole system.Those skilled in the art can realize in various ways for every kind of concrete application
The function, but this realization decision should not be interpreted as causing a departure from range disclosed by the embodiments of the present invention.
Existing TPM default supports LCP agreement, if notifying complexity can by the reserved outlet on TPM if SPI protocol
Programmed logic device (CPLD), CPLD judge to send after this signal corresponding SPI protocol gating signal to the platform path of BIOS
Controller (PCH), PCH load corresponding file by the level height of the signal.In view of LPC agreement and SPI protocol
TPM does not have to distinguish the signal of agreement on external interface, but the safety chip on the TPM of SPI protocol has physics signal in place
And reserved outlet, signal default remain height, the embodiment of the present invention is connected reserved outlet by cable using mode shown in Fig. 2
Onto server.As shown in Fig. 2, the signal is 3.3V voltage, pull-up resistor 10K, pull down resistor on server master board on TPM
100K: when not using SPI TPM, the second reserved outlet (head in Fig. 2) of mainboard is directly grounded, and CPLD receives the signal
Afterwards, it sends low signal and makes BIOS connection LPC connector to PCH, load the load document of LPC TPM；Using SPI TPM
When, 3.3V voltage, it is 3V on 100K pull down resistor that 10K pull-up resistor, which is connected to, and transmission high level makes to PCH after CPLD receives 3V
BIOS connection SPI connector loads the load document of SPI TPM.Thus BIOS can be according to the signal that CPLD is sent come automatic
Switch supported TPM module.
From above-described embodiment as can be seen that reliable platform module protocol recognition method provided in an embodiment of the present invention, leads to
Complex Programmable Logic Devices detection is crossed using the physics signal in place of the reliable platform module of SPI protocol, compile complexity can
Journey logical device sends SPI protocol gating signal to platform path controller according to physics signal in place, makes platform path control
Device selectively loads using SPI protocol or LPC agreement reliable platform module open according to SPI protocol gating signal
Dynamic file and the technical solution for thus starting reliable platform module can be assisted for different TPM agreements or different types of TPM
View comes automatic identification and switching, improves compatibility, simplifies operating quantity, improves working efficiency.
It is important to note that each step in each embodiment of above-mentioned reliable platform module protocol recognition method
Suddenly can intersect, replace, increase, deleting, therefore, these reasonable permutation and combination transformation in reliable platform module
Protocol recognition method should also be as belonging to the scope of protection of the present invention, and protection scope of the present invention should not be confined to the reality
It applies on example.
Based on above-mentioned purpose, the second aspect of the embodiment of the present invention, propose one kind can for different TPM agreements or
Different types of TPM agreement carrys out the embodiment of the device of automatic identification and switching.Described device includes:
Reliable platform module, including using SPI protocol or LPC agreement reliable platform module；
Complex Programmable Logic Devices, is connected to reliable platform module, and detection uses the reliable platform mould of SPI protocol
The physics of block signal in place simultaneously issues SPI protocol gating signal according to physics signal in place；
Platform path controller is connected to Complex Programmable Logic Devices, obtains SPI protocol gating signal, and accordingly select
Load to selecting property the startup file of using SPI protocol or LPC agreement reliable platform module.
It in some embodiments, the use of the reliable platform module of SPI protocol include that electricity is connected to by pull-up resistor
The pull-up level of potential source and the first reserved outlet of ground connection；Physics signal in place is existed using the reliable platform module of SPI protocol
It is sent and being connected to pull-up level when position, and is passed through when not in place using the reliable platform module of SPI protocol
It is connected to the first reserved outlet and is sent；
Complex Programmable Logic Devices includes second reserved outlet with pull down resistor, and Complex Programmable Logic Devices passes through
Second reserved outlet receives physics signal in place；Second reserved outlet using SPI protocol reliable platform module it is in place when
The physics signal in place that level output will be pulled up under the action of pull down resistor divide as high level, and in use SPI protocol
The level of first reserved outlet is read as low level when reliable platform module is not in place.
It can be various electric terminal equipments, such as mobile phone, a number that the embodiment of the present invention, which discloses described device, equipment etc.,
Word assistant (PDA), tablet computer (PAD), smart television etc., are also possible to large-scale terminal device, such as server, therefore this hair
Protection scope disclosed in bright embodiment should not limit as certain certain types of device, equipment.The embodiment of the present invention discloses described
Client can be with the combining form of electronic hardware, computer software or both be applied to any one of the above electric terminal
In equipment.
Computer readable storage medium (such as memory) as described herein can be volatile memory or non-volatile
Memory, or may include both volatile memory and nonvolatile memory.As an example and not restrictive, it is non-easy
The property lost memory may include read-only memory (ROM), programming ROM (PROM), electrically programmable ROM (EPROM), electrically-erasable
Programming ROM (EEPROM) or flash memory.Volatile memory may include random access memory (RAM), which can
To serve as external cache.As an example and not restrictive, RAM can be obtained in a variety of forms, such as synchronous
RAM (DRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate SDRAM (DDR SDRAM), enhancing SDRAM
(ESDRAM), synchronization link DRAM (SLDRAM) and directly Rambus RAM (DRRAM).The storage of disclosed aspect is set
The standby memory for being intended to including but not limited to these and other suitable type.
Based on above-mentioned purpose, in terms of the third of the embodiment of the present invention, propose one kind can for different TPM agreements or
Different types of TPM agreement carrys out the server of the device of automatic identification and switching.Server has above-mentioned reliable platform mould
Block protocol identification device uses SPI protocol or LPC agreement reliable platform module to start.
The various exemplary testing apparatus in conjunction with described in disclosure herein, which can use, to be designed to execute here
The following component of the function is realized or is executed: general processor, digital signal processor (DSP), specific integrated circuit
(ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hard
Any combination of part component or these components.General processor can be microprocessor, but alternatively, and processor can be with
It is any conventional processors, controller, microcontroller or state machine.Processor also may be implemented as calculating the combination of equipment,
For example, the combination of DSP and microprocessor, multi-microprocessor, one or more microprocessors combination DSP and/or any other
This configuration.
From above-described embodiment as can be seen that reliable platform module protocol identification device kimonos provided in an embodiment of the present invention
Business device is made multiple by Complex Programmable Logic Devices detection using the physics signal in place of the reliable platform module of SPI protocol
Miscellaneous programmable logic device sends SPI protocol gating signal to platform path controller according to physics signal in place, makes platform road
Diameter controller selectively loads using SPI protocol or LPC agreement reliable platform mould according to SPI protocol gating signal
The startup file of block and the technical solution for thus starting reliable platform module, can be directed to different TPM agreements or different type
TPM agreement come automatic identification and switching, improve compatibility, simplify operating quantity, improve working efficiency.
It is important to note that the embodiment of above-mentioned reliable platform module protocol identification device and server uses
The embodiment of the reliable platform module protocol recognition method illustrates the course of work of each module, those skilled in the art
Member can be it is readily conceivable that by these module applications to the other embodiments of the reliable platform module protocol recognition method
In.Certainly, since each step in the reliable platform module protocol recognition method embodiment can intersect, replace
Change, increase, delete, therefore, these reasonable permutation and combination transformation in the reliable platform module protocol identification device and
Server should also be as belonging to the scope of protection of the present invention, and protection scope of the present invention should not be confined to the embodiment it
On.
It is exemplary embodiment disclosed by the invention above, it should be noted that in the sheet limited without departing substantially from claim
Under the premise of inventive embodiments scope of disclosure, it may be many modifications and modify.According to open embodiment described herein
The function of claim to a method, step and/or movement be not required to the execution of any particular order.In addition, although the present invention is implemented
Element disclosed in example can be described or be required in the form of individual, but be unless explicitly limited odd number, it is understood that be multiple.
It should be understood that it is used in the present context, unless the context clearly supports exceptions, singular " one
It is a " it is intended to also include plural form.It is to be further understood that "and/or" used herein refers to including one or one
Any and all possible combinations of a above project listed in association.The embodiment of the present invention discloses embodiment sequence number
Description, does not represent the advantages or disadvantages of the embodiments.
It should be understood by those ordinary skilled in the art that: the discussion of any of the above embodiment is exemplary only, not
It is intended to imply that range disclosed by the embodiments of the present invention (including claim) is limited to these examples；In the think of of the embodiment of the present invention
Under road, it can also be combined between the technical characteristic in above embodiments or different embodiments, and exist as described above
Many other variations of the different aspect of the embodiment of the present invention, for simplicity, they are not provided in details.Therefore, all at this
Within the spirit and principle of inventive embodiments, any omission, modification, equivalent replacement, improvement for being made etc. should be included in this hair
Within the protection scope of bright embodiment.
Claims (10)
1. a kind of reliable platform module protocol recognition method, which comprises the following steps:
The physics signal in place of the reliable platform module of SPI protocol is used by Complex Programmable Logic Devices detection；
Complex Programmable Logic Devices is set to send SPI protocol gating letter to platform path controller according to physics signal in place
Number；
Make platform path controller and selectively loads using SPI protocol or LPC association according to the SPI protocol gating signal
Thus the startup file of the reliable platform module of view simultaneously starts reliable platform module.
2. the method according to claim 1, wherein the use of the reliable platform module of SPI protocol including passing through
Pull-up resistor is connected to the pull-up level of voltage source and the first reserved outlet of ground connection；The physics signal in place is assisted using SPI
Sent and being connected to the pull-up level when reliable platform module of view is in place, and using SPI protocol can
It is sent and being connected to first reserved outlet when trusted platform module is not in place.
3. according to the method described in claim 2, it is characterized in that, Complex Programmable Logic Devices includes having pull down resistor
Second reserved outlet, Complex Programmable Logic Devices receive physics signal in place by second reserved outlet；Described
Two reserved outlets when described in place using the reliable platform module of SPI protocol in the pull down resistor under the action of will be described on
Drawing the physics of level output signal partial pressure in place is high level, and is using the reliable platform module of SPI protocol not
The level of first reserved outlet is read as low level when in place.
4. according to the method described in claim 3, it is characterized in that, the voltage source is 3.3V DC voltage source, the pull-up
Resistance is 10 kilohms, and the pull down resistor is 100 kilohms.
5. the method according to claim 1, wherein keeping Complex Programmable Logic Devices in place according to the physics
It includes: Complex Programmable Logic Devices in response to the physics that signal, which sends SPI protocol gating signal to platform path controller,
Signal designation in place is in place using the reliable platform module of SPI protocol and the SPI of high level is sent to platform path controller
Agreement gating signal, and it is not in place using the reliable platform module of SPI protocol in response to physics signal designation in place
And low level SPI protocol gating signal is sent to platform path controller.
6. the method according to claim 1, wherein gating platform path controller according to the SPI protocol
Signal selectively loads the startup file of using SPI protocol or LPC agreement reliable platform module and thus starts
Reliable platform module includes: platform path controller in response to receiving the SPI protocol gating signal of high level and loading makes
With the startup file of the reliable platform module of SPI protocol, and in response to receiving low level SPI protocol gating signal and
Load uses the startup file of the reliable platform module of LPC agreement.
7. the method according to claim 1, wherein platform path controller is connected to the connection of SPI protocol file
Device and LPC document of agreement connector；Platform path controller is selectively from SPI protocol file connector or LPC document of agreement
Connector obtains startup file and loads the startup file.
8. a kind of reliable platform module protocol identification device characterized by comprising
Reliable platform module, including using SPI protocol or LPC agreement reliable platform module；
Complex Programmable Logic Devices, is connected to the reliable platform module, and detection uses the reliable platform mould of SPI protocol
The physics of block signal in place simultaneously issues SPI protocol gating signal according to physics signal in place；
Platform path controller is connected to the Complex Programmable Logic Devices, obtains SPI protocol gating signal, and accordingly select
Load to selecting property the startup file of using SPI protocol or LPC agreement reliable platform module.
9. device according to claim 8, which is characterized in that wherein:
Reliable platform module using SPI protocol includes pull-up level and the ground connection that voltage source is connected to by pull-up resistor
First reserved outlet；The physics signal in place is described by being connected to when in place using the reliable platform module of SPI protocol
It pulls up level and is sent, and by being connected to described first when not in place using the reliable platform module of SPI protocol
Reserved outlet and sent；
Complex Programmable Logic Devices includes second reserved outlet with pull down resistor, and Complex Programmable Logic Devices passes through described
Second reserved outlet receives physics signal in place；Second reserved outlet is in the reliable platform using SPI protocol
Physics signal in place when module is in place under the action of the pull down resistor by the pull-up level output divides as height
Level, and when not in place using the reliable platform module of SPI protocol be read as the level of first reserved outlet low
Level.
10. a kind of server, which is characterized in that have reliable platform module protocol identification device as claimed in claim 9.
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| CN111709030A (en) * | 2020-05-22 | 2020-09-25 | 苏州浪潮智能科技有限公司 | Trusted platform module board card |
| CN111709030B (en) * | 2020-05-22 | 2022-11-08 | 苏州浪潮智能科技有限公司 | Trusted platform module board card |
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| CN109753473B (en) | 2021-04-27 |
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