CN104573468A - Single-kernel security authentication device with multiple USB (universal serial bus) interfaces - Google Patents
Single-kernel security authentication device with multiple USB (universal serial bus) interfaces Download PDFInfo
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- CN104573468A CN104573468A CN201510050239.4A CN201510050239A CN104573468A CN 104573468 A CN104573468 A CN 104573468A CN 201510050239 A CN201510050239 A CN 201510050239A CN 104573468 A CN104573468 A CN 104573468A
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- usb interface
- resistance
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- safety
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Classifications
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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
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/34—User authentication involving the use of external additional devices, e.g. dongles or smart cards
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/40—Bus coupling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2141—Access rights, e.g. capability lists, access control lists, access tables, access matrices
Abstract
The invention provides a single-kernel security authentication device with multiple USB (universal serial bus) interfaces. The security authentication device comprises at least two types of USB interfaces, namely a first USB interface and a second USB interface and further comprises a first detection module, a second detection module and a security management module. The first detection module is used for detecting a first voltage signal of the first USB interface; the second detection module is used for detecting a second voltage signal of the second USB interface; the security management module is used for enumerating the security authentication device as a host type corresponding to the second USB interface when the second voltage signal is judged to be effective; when both the first voltage signal and the second voltage signal are judged to be effective, a USB bus is hung up. When both the USB interfaces are judged to be connected into hosts, the USB bus is hung up, and a USB bus command is prevented from being interfered. Normal communication when the USB interfaces are available can be realized, and protective measures when the multiple hosts are connected in are available.
Description
Technical field
The present invention relates to safety certificate equipment technical field, particularly a kind of safety certificate equipment of monokaryon multi-USB interface.
Background technology
First safety identification authentication equipment is introduced.
Form mainly through USB Key embodies.USB Key is a kind of hardware device of USB interface, and this equipment built-in intelligence the core of the card sheet, can store key or the digital certificate of user, the cryptographic algorithms' implementation utilizing USB Key built-in is to the certification of user identity.
Meet the safety identification authentication equipment of PKI standard in prior art, have the features such as security is high, usable range is wide, but most equipment occurs with the form of USB interface, intelligent card interface, the equipment of this contact is more single on interface shape.Therefore, present mobile terminal can not be applicable to, such as mobile phone, flat board etc.
Therefore, USB Key product in the market, can only support single interface mode, can not support can use on PC, supports again to use on mobile terminals, causes the inconvenience of user.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of safety certificate equipment of monokaryon multi-USB interface, can provide multiple USB interface, can use on PC, also can use on mobile terminals.
The embodiment of the present invention provides a kind of safety certificate equipment of monokaryon multi-USB interface, at least comprises the USB interface of following two types: the first USB interface and secondary USB interface; Also comprise: safety management module, first detection module and the second detection module;
Described first detection module, for detecting the first voltage signal of described first USB interface;
Described second detection module, for detecting the second voltage signal of described secondary USB interface;
Described safety management module, during for judging that the first voltage signal is effective, being enumerated by this safety certificate equipment is Host Type corresponding to the first USB interface; When judging that the second voltage signal is effective, this safety certificate equipment is enumerated into Host Type corresponding to secondary USB interface; When judging that the first voltage signal and the second voltage signal are all effectively, usb bus is hung up; Also for the security system based on Public Key Infrastructure PKI, safety identification authentication is carried out to the safety identification authentication data of being sent by described first USB interface or secondary USB interface, and the result of safety identification authentication is sent to outside by described first USB interface or secondary USB interface.
Preferably, described first detection module is the first bleeder circuit;
The first end of described first bleeder circuit connects the power end of described first USB interface; Second end of described first bleeder circuit connects described safety management module.
Preferably, described first bleeder circuit comprises: the first resistance, the second resistance and the 3rd resistance;
The first end of described first resistance is the first end of this first bleeder circuit;
The first end of described first resistance connects the power end of described first USB interface;
Second end of described first resistance is by described second resistance eutral grounding;
Second end of described first resistance connects the first end of described 3rd resistance, and the second end of described 3rd resistance connects described safety management module; Second end of described 3rd resistance is the second end of this first bleeder circuit;
When described first USB interface connects main frame, it is effective that described safety management module detects described first voltage signal.
Preferably, described second detection module is the second bleeder circuit;
The first end of described second bleeder circuit connects the power end of described secondary USB interface; Second end of described second bleeder circuit connects described safety management module.
Preferably, described second bleeder circuit comprises: the 4th resistance, the 5th resistance and the 6th resistance;
The first end of described 4th resistance is the first end of this second bleeder circuit;
The first end of described 4th resistance connects the power end of described secondary USB interface;
Second end of described 4th resistance is by described 5th resistance eutral grounding;
Second end of described 4th resistance connects the first end of described 6th resistance, and the second end of described 6th resistance connects described safety management module; Second end of described 6th resistance is the second end of this second bleeder circuit;
When described secondary USB interface connects main frame, it is effective that described safety management module detects described second voltage signal.
Preferably, also comprise: power source protective module;
Described power source protective module comprises the first diode and the second diode;
The anode of described first diode connects the power end of described first USB interface, and the negative electrode of described first diode connects the negative electrode of described second diode, and the anode of described second diode connects the power end of described secondary USB interface;
Described first diode is all connected the power end of described safety management module with the negative electrode of the second diode.
Preferably, described first USB interface and secondary USB interface are respectively any two kinds: USB-MINI type interface, USB-B type interface, USB-Micro type interface and the USB-A type interface in following four kinds of USB interface.
Preferably, also comprise: shell;
Described safety management module, first detection module and the second detection module are positioned at described enclosure.
Preferably, described main frame is: flat board, mobile phone or PC.
Preferably, described first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance are all identical with the resistance of the 6th resistance.
Compared with prior art, the present invention has the following advantages:
The safety certificate equipment that the present embodiment provides, there is the USB interface that two or more is dissimilar, and each USB interface is to having detection module, can detect whether corresponding USB interface has main frame to access, when judgement USB interface has main frame to access, this safety certificate equipment is enumerated the type for this main frame needs.When judgement two USB interface all have main frame to access simultaneously, usb bus is hung up, does not namely communicate with any main frame, prevent usb bus order disturbed, cause going wrong during this safety certificate equipment of main frame identification.Therefore, the equipment that the present embodiment provides can realize proper communication when possessing multiple USB interface, and possesses safeguard measure when simultaneously accessing multiple main frame.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is safety certificate equipment embodiment one schematic diagram of monokaryon multi-USB interface provided by the invention;
Fig. 2 is safety certificate equipment embodiment two schematic diagram of monokaryon multi-USB interface provided by the invention;
Fig. 3 is safety certificate equipment embodiment three schematic diagram of monokaryon multi-USB interface provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Apparatus embodiments one:
See Fig. 1, this figure is safety certificate equipment embodiment one schematic diagram of monokaryon multi-USB interface provided by the invention.
The safety certificate equipment of the monokaryon multi-USB interface that the present embodiment provides, at least comprises following two usb types: the first usb 1 00 and secondary USB interface 400; Also comprise: safety management module 300, first detection module 200 and the second detection module 500;
Described first detection module 200, for detecting the first voltage signal of described first usb 1 00;
Described second detection module 500, for detecting the second voltage signal of described secondary USB interface 100;
Described safety management module 300, during for judging that the first voltage signal is effective, being enumerated by this safety certificate equipment is the Host Type of the first usb 1 00 correspondence; When judging that the second voltage signal is effective, this safety certificate equipment is enumerated the Host Type into secondary USB interface 400 correspondence; When judging that the first voltage signal and the second voltage signal are all effectively, usb bus is hung up; Also for the security system based on Public Key Infrastructure PKI, safety identification authentication is carried out to the safety identification authentication data of being sent by described first usb 1 00 or secondary USB interface 400, and the result of safety identification authentication is sent to outside by described first usb 1 00 or secondary USB interface 400.
It should be noted that, judge that the first voltage signal refers to the first voltage signal and meets and pre-conditionedly judge that the first usb 1 00 has corresponding main frame access when being effective.Such as, when first voltage signal is high level, judge have corresponding main frame to access the first usb 1 00, or when the first voltage signal has a level transitional states, it is the transmission that Host Type that the first usb 1 00 connects carries out data that this safety certificate equipment is enumerated by safety management module 300.
It should be noted that, the effective status of the first voltage signal can be arranged according to actual needs, is not specifically limited at this.
Such as, when the Host Type that the first usb 1 00 accesses is PC, then the communication modes that this safety certificate equipment is enumerated as needing with PC by safety management module 300 carries out data transmission.
Due to the first usb 1 00 do not connect main frame time, during vacant state, it may be low level state, when the first usb 1 00 connects PC, the power end of the first usb 1 00 will provide power supply by PC, now, first detection module 200 will detect that the power end of the first usb 1 00 becomes high level, and the time that safety management module 300 high level continues exceedes the schedule time then judges have PC to access.
The safety certificate equipment that the present embodiment provides has at least two usb types simultaneously, safety certificate equipment can be applied in different occasions like this, such as, be applied on PC, also can apply on mobile terminals (dull and stereotyped or mobile phone on).
Main frame described in above embodiment can be: mobile phone, flat board or mobile phone.
Usb type is not specifically limited in the present invention, such as, comprise at least following two kinds: USB-Micro type interface and USB-A type interface.
The safety certificate equipment that the present embodiment provides, there is the USB interface that two or more is dissimilar, and each USB interface is to having detection module, can detect whether corresponding USB interface has main frame to access, when judgement USB interface has main frame to access, this safety certificate equipment is enumerated the type for this main frame needs.When judgement two USB interface all have main frame to access simultaneously, usb bus is hung up, does not namely communicate with any main frame, prevent usb bus order disturbed, cause going wrong during this safety certificate equipment of main frame identification.Therefore, the equipment that the present embodiment provides can realize proper communication when possessing multiple USB interface, and possesses safeguard measure when simultaneously accessing multiple main frame.
Described first USB interface and secondary USB interface are respectively any two kinds: USB-MINI type interface, USB-B type interface, USB-Micro type interface and USB-A type interface in following four kinds of USB interface.
Apparatus embodiments two:
See Fig. 2, this figure is safety certificate equipment embodiment two schematic diagram of monokaryon multi-USB interface provided by the invention.
In the present embodiment, described first detection module 200 is the first bleeder circuit;
The first end of described first bleeder circuit connects the power end of described first usb 1 00; Second end of described first bleeder circuit connects described safety management module.
Be USB-Micro interface with the first usb 1 00 in the present embodiment, secondary USB interface is USB-A interface is that example is introduced,
Described first bleeder circuit comprises: the first resistance R1, the second resistance R2 and the 3rd resistance R3;
The first end of described first resistance R1 is the first end of this first bleeder circuit;
The first end of described first resistance R1 connects the power end of described first usb 1 00;
Second end of described first resistance R1 is by described second resistance R2 ground connection;
Second end of described first resistance R1 connects the first end of described 3rd resistance R3, and second end of described 3rd resistance R3 connects described safety management module; Second end of described 3rd resistance R3 is the second end of this first bleeder circuit;
When described first usb 1 00 connects main frame, it is effective that described safety management module detects described first voltage signal.
Described second detection module 500 is the second bleeder circuit;
The first end of described second bleeder circuit connects the power end of described secondary USB interface 400; Second end of described second bleeder circuit connects described safety management module.
Described second bleeder circuit comprises: the 4th resistance R4, the 5th resistance R5 and the 6th resistance R6;
The first end of described 4th resistance R4 is the first end of this second bleeder circuit;
The first end of described 4th resistance R4 connects the power end of described secondary USB interface;
Second end of described 4th resistance R4 is by described 5th resistance R5 ground connection;
Second end of described 4th resistance R4 connects the first end of described 6th resistance R6, and second end of described 6th resistance R6 connects described safety management module 300; Second end of described 6th resistance R6 is the second end of this second bleeder circuit;
When described secondary USB interface 400 connects main frame, it is effective that described safety management module 300 detects described second voltage signal.
Be understandable that, the VCC of the power end of USB interface is 5V, and when USB interface connects main frame, power end VCC provides 5V voltage by main frame, can detect that main frame accesses by three electric resistance partial pressures.Such as, when USB-Micro interface has main frame to access, then the voltage of a point is 5V, and safety management module 300 detects that the voltage signal of b point is effective, and the type enumerated by safety certificate equipment as the main frame needs of USB-Micro interface access communicates.
It should be noted that, the first bleeder circuit and the second bleeder circuit can be realized by the bleeder circuit of other types, are only schematically illustrate a kind of mode in the present embodiment.Such as, the first bleeder circuit not only can comprise these three resistance of R1, R2 and R3.
In addition, conveniently safety management module 300 is for the detection of voltage signal, and the resistance that can arrange these six resistance of R1-R6 is all identical, and such dividing potential drop calculates fairly simple.
When only having USB-Micro interface to insert main process equipment: USB-VCC (USB power source) connects, a point voltage raises, first bleeder circuit completes the collection to voltage signal, the voltage of b point raises, now d point voltage is still low-voltage, safety management module 300 detects b point signal, this safety certificate equipment is enumerated the device type into respective hosts needs.
When only having right-hand member USB-A interface to insert main process equipment: USB-VCC (USB power source) connects, power supply e point voltage raises, second bleeder circuit completes the collection to voltage signal, the voltage of d point raises, now b point voltage is still low-voltage, safety management module 300 detects d point signal, this safety certificate equipment is enumerated the device type into respective hosts needs.
When multiple USB interface inserts main frame simultaneously: process same as above, b point and d point voltage all raise, and now safety management module 300 detects the state of this b point and d point voltage signal, is hung up by usb bus, prevent usb bus order disturbed, cause going wrong during main frame identification equipment.
Apparatus embodiments three:
See Fig. 3, this figure is safety certificate equipment embodiment three schematic diagram of monokaryon multi-USB interface provided by the invention.
Described power source protective module comprises the first diode and the second diode;
The anode of described first diode connects the power end of described first USB interface, and the negative electrode of described first diode connects the negative electrode of described second diode, and the anode of described second diode connects the power end of described secondary USB interface.
Meanwhile, the negative electrode of D1 with D2 is all connected the power end of safety management module 300, for safety management module provides power supply.
D1 and D2 by protection each interface power supply not disturb by other power supplys.Such as, when the first USB interface has main frame to access, the rising of a point voltage can not have influence on the voltage of e point.
In addition, the safety certificate equipment that the present embodiment provides also comprises: shell (not shown)
Described safety management module, first detection module and the second detection module are positioned at described enclosure.
The safety certificate equipment that the above embodiment of the present invention provides achieves monokaryon and is applicable to multi-platform situation, is applicable to multiple main frame.And solve multi-USB interface when having main frame to access, the power supply of equipment and the problem of usb bus safety simultaneously.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (10)
1. a safety certificate equipment for monokaryon multi-USB interface, is characterized in that, at least comprises the USB interface of following two types: the first USB interface and secondary USB interface; Also comprise: safety management module, first detection module and the second detection module;
Described first detection module, for detecting the first voltage signal of described first USB interface;
Described second detection module, for detecting the second voltage signal of described secondary USB interface;
Described safety management module, during for judging that the first voltage signal is effective, being enumerated by this safety certificate equipment is Host Type corresponding to the first USB interface; When judging that the second voltage signal is effective, this safety certificate equipment is enumerated into Host Type corresponding to secondary USB interface; When judging that the first voltage signal and the second voltage signal are all effectively, usb bus is hung up; Also for the security system based on Public Key Infrastructure PKI, safety identification authentication is carried out to the safety identification authentication data of being sent by described first USB interface or secondary USB interface, and the result of safety identification authentication is sent to outside by described first USB interface or secondary USB interface.
2. the safety certificate equipment of monokaryon multi-USB interface according to claim 1, is characterized in that, described first detection module is the first bleeder circuit;
The first end of described first bleeder circuit connects the power end of described first USB interface; Second end of described first bleeder circuit connects described safety management module.
3. the safety certificate equipment of monokaryon multi-USB interface according to claim 2, is characterized in that, described first bleeder circuit comprises: the first resistance, the second resistance and the 3rd resistance;
The first end of described first resistance is the first end of this first bleeder circuit;
The first end of described first resistance connects the power end of described first USB interface;
Second end of described first resistance is by described second resistance eutral grounding;
Second end of described first resistance connects the first end of described 3rd resistance, and the second end of described 3rd resistance connects described safety management module; Second end of described 3rd resistance is the second end of this first bleeder circuit;
When described first USB interface connects main frame, it is effective that described safety management module detects described first voltage signal.
4. the safety certificate equipment of monokaryon multi-USB interface according to claim 3, is characterized in that, described second detection module is the second bleeder circuit;
The first end of described second bleeder circuit connects the power end of described secondary USB interface; Second end of described second bleeder circuit connects described safety management module.
5. the safety certificate equipment of monokaryon multi-USB interface according to claim 4, is characterized in that, described second bleeder circuit comprises: the 4th resistance, the 5th resistance and the 6th resistance;
The first end of described 4th resistance is the first end of this second bleeder circuit;
The first end of described 4th resistance connects the power end of described secondary USB interface;
Second end of described 4th resistance is by described 5th resistance eutral grounding;
Second end of described 4th resistance connects the first end of described 6th resistance, and the second end of described 6th resistance connects described safety management module; Second end of described 6th resistance is the second end of this second bleeder circuit;
When described secondary USB interface connects main frame, it is effective that described safety management module detects described second voltage signal.
6. the safety certificate equipment of monokaryon multi-USB interface according to claim 1, is characterized in that, also comprise: power source protective module;
Described power source protective module comprises the first diode and the second diode;
The anode of described first diode connects the power end of described first USB interface, and the negative electrode of described first diode connects the negative electrode of described second diode, and the anode of described second diode connects the power end of described secondary USB interface;
Described first diode is all connected the power end of described safety management module with the negative electrode of the second diode.
7. the safety certificate equipment of the monokaryon multi-USB interface according to any one of claim 1-6, it is characterized in that, described first USB interface and secondary USB interface are respectively any two kinds: USB-MINI type interface, USB-B type interface, USB-Micro type interface and USB-A type interface in following four kinds of USB interface.
8. the safety certificate equipment of monokaryon multi-USB interface according to claim 1, is characterized in that, also comprise: shell;
Described safety management module, first detection module and the second detection module are positioned at described enclosure.
9. the safety certificate equipment of monokaryon multi-USB interface according to claim 1, is characterized in that, described main frame is: flat board, mobile phone or PC.
10. the safety certificate equipment of monokaryon multi-USB interface according to claim 5, is characterized in that, described first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance are all identical with the resistance of the 6th resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510050239.4A CN104573468A (en) | 2015-01-30 | 2015-01-30 | Single-kernel security authentication device with multiple USB (universal serial bus) interfaces |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510050239.4A CN104573468A (en) | 2015-01-30 | 2015-01-30 | Single-kernel security authentication device with multiple USB (universal serial bus) interfaces |
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| CN104573468A true CN104573468A (en) | 2015-04-29 |
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| CN201510050239.4A Pending CN104573468A (en) | 2015-01-30 | 2015-01-30 | Single-kernel security authentication device with multiple USB (universal serial bus) interfaces |
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| US11853247B2 (en) | 2020-06-18 | 2023-12-26 | Boe Technology Group Co., Ltd. | Interface switching apparatus, communication device, and interface switching method |
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