CN202650014U - USB Key - Google Patents
USB Key Download PDFInfo
- Publication number
- CN202650014U CN202650014U CN 201120512409 CN201120512409U CN202650014U CN 202650014 U CN202650014 U CN 202650014U CN 201120512409 CN201120512409 CN 201120512409 CN 201120512409 U CN201120512409 U CN 201120512409U CN 202650014 U CN202650014 U CN 202650014U
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- interface
- usb
- chip
- usb key
- key
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- Expired - Lifetime
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Abstract
The utility model discloses a cross-platform USB Key and relates to the arrangement of the data communication interfaces in the USB Key. The data communication interfaces arranged in the USB Key is advantaged by an SD interface function and a USB interface function. Therefore the problem that the conventional USB Key can only be used on a USB interface-equipped apparatus and can not be used on other operation platforms is solved. When used on an SD interface platform, the USB Key is free from connection with an interface conversion device, and the USB Key is characterized by strong flexibility.
Description
Technical field
The utility model relates to the application of electronic technology field, relates in particular to a kind of USB Key that can cross-platform use.
Background technology
USB KEY(intelligent key apparatus) be a kind of small and exquisite hardware device of USB interface, shape and the USB flash disk that we are common do not have any difference.But it is built-in CPU, storer, chip operating system (COS) can be stored user's key or digital certificate, utilizes the built-in cryptographic algorithms' implementation of USB KEY to the authentication of user identity.
At present, USB Key more and more has been widely used in the occasion that Web bank, ecommerce etc. need to be carried out authentication.But existing USB KEY uses in the environment of PC, all be to be connected to PC by the USB interface on the PC mostly, and follow in these years, people are to electronic product movability and the portable day by day raising that requires, the electronic product of function singleness more and more can not satisfy people's diversified requirement, present portable terminal and portable embedded system device, such as smart mobile phone, PAD, MP4 etc., this this equipment is owing to consider the problem of portability, that designs is comparatively small and exquisite, this kind equipment has mostly adopted the interface of SD agreement, support SDIO, the external form of the SD card of main flow is MicroSD/MiniSD, therefore the existing USB Key that possesses USB interface just can't use at portable terminal and portable embedded system device, namely work as the user on these equipment, can't carry out to be undertaken by USB Key the associative operation of authentication.
Summary of the invention
The technical problem underlying that the utility model solves is, a kind of USB Key is provided, and solving present USB Key can only use at the equipment that possesses USB interface, the problem that can't use at other operating platforms.
In order to address the above problem, the utility model provides a kind of USB Key, comprise housing, USB Key chip and data communication interface, USB Key built-in chip type is in described housing, data communication interface is subject to the signal controlling of USB Key chip, and the data communication interface in USB Key of the present utility model comprises SD interface and USB interface.
Further, USB Key chip comprises bus, and the SD interface all links to each other with bus with USB interface.
USB Key chip among the utility model USB Key has also comprised bus, and USB interface links to each other with the SD interface simultaneously, and the SD interface links to each other with described bus.
USB Key also comprises the SD interface chip, and USB Key chip comprises bus, and USB interface directly is connected with bus, and the SD interface chip is connected with USB Key chip, and the SD interface links to each other with the SD interface chip.
USB Key also comprises the USB interface chip, and USB Key chip comprises bus, and the SD Interface ﹠ Bus are connected, and the USB interface chip is connected with USB Key chip, and USB interface links to each other with the USB interface chip.
USB Key also comprises USB interface chip and SD interface chip, and the SD interface is connected with the SD interface chip, and USB interface is connected with the USB interface chip, and wherein USB interface chip and SD interface chip all are connected on the USB Key chip.
Further, when USB interface was linked to each other with the SD interface, the power lead of the USB interface power lead corresponding with the SD interface linked to each other, and the All other routes in the data line of USB interface and the SD interface except power lead are connected.
Further, the SD interface in the above scheme is arranged on the side of described housing, and USB interface also is arranged on the side of described housing.
Further, SD interface and USB interface can also be arranged on same position, described SD interface comprises the first grafting body, described USB interface comprises the second grafting body, described USB interface is public mouthful of ultra-thin USB-A, be provided with control device on the housing of USB Key, described the second grafting body is public mouthful of telescopic USB-A type, described the second grafting body can slide into or skid off in described housing, when the state that the second grafting body skids off, the second grafting body and the first grafting body superpose mutually, and described the second grafting body places top, wherein the thickness of the first grafting body is the SD interface thickness of standard, and the thickness with after described the first grafting body stack of described the second grafting body is the USB interface thickness of standard, is provided with conducting terminal on described first and second grafting body.
Further USB Key chip comprises CPU among the USB Key of the utility model design; reservoir, and security component, CPU carries out built-in cryptographic algorithm computing; reservoir is used for depositing key and digital certificate, and security component is used for the key and the digital certificate that leave reservoir in are protected.
The utility model beneficial effect is:
By the data communication interface that possesses simultaneously SD interface and usb function is set at USB Key, can satisfy at PC and use USB interface or SD interface, at cell phone platform or PAD platform, use the SD interface, make USB Key when different platform is used, have stronger dirigibility.
Description of drawings
Fig. 1 is the utility model embodiment one structural representation;
Fig. 2 is the structural representation of the utility model embodiment two;
Fig. 3 is the utility model embodiment three structural representations;
Fig. 4 is the utility model embodiment four structural representations;
Fig. 5 is the utility model embodiment five structural representations;
Fig. 6 is USB Key chip internal structure figure.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
The utility model USB Key, it has comprised that being wrapped in the outside plays protection and the housing 2 of supporting role, USB Key chip 22, and data communication interface, wherein USB Key chip 22 is positioned in the housing 2, and the signal of control data communication interface transmits.USB Key is connected with the required electronic device terminal that operates by data communication interface simultaneously, and carries out data transmission, and wherein Interface for digital communication has possessed the versatile interface of the function of SD interface 3 and usb 1.
As shown in Figure 6, parts USB Key chip 22 as USB Key security performance most critical, comprise bus 224, CPU221, reservoir 222, and security component 223, wherein CPU221 carries out built-in cryptographic algorithm computing, can realize the various algorithms of data summarization, data encrypting and deciphering and signature, the encryption and decryption computing is carried out in USB Key, has guaranteed that user key can not appear in the calculator memory; Reservoir 222 is used for depositing secure data, such as depositing the secret datas such as digital certificate, key; And bus 224 can connect each functional part and data-interface in the chip, and is used for the information transmission of each functional part; Security component 223 is used for key and the digital certificate of depositing in reservoir are protected; external user can't directly be read; read-write and modification to key file all must be by the routine calls in the USB Key; from the outside of USB Key interface, can read, revise, upgrade and delete the content in key district without any an order.
As shown in Figure 1, the structural representation of the utility model embodiment one, Interface for digital communication is by the dual-interface mode of SD interface 3 and usb 1 is set at USB Key in embodiment one, realizes the function that USB Key can use at the distinct interface platform.Wherein, SD interface 3 links to each other with USB Key chip 22, usb 1 also links to each other with USB Key chip 22 simultaneously, because bus 224 is public passages that the information of USB Key chip 22 each parts transmits, so SD interface 3 and usb 1 all can be connected on the bus 224 in the USB Key chip 22, realize the mutual transmission of information.When concrete use, if the interface of electronic equipment is USB interface, then the usb 1 end of USB Key is inserted the USB interface of the correspondence of electronic equipment, electronic equipment can make by the usb 1 of USB Key 22 couples of users' of USB Key chip identity authenticate; If the interface of electronic equipment is the SD interface, then the SD interface 3 of USB Key inserts the SD interface of the correspondence of electronic equipment, SD interface 3 is sent to the electronic equipment end by the calculation process result from the next USB Key chip 22 of bus transfer, realizes the authentication to the user.
In conjunction with Fig. 2 specific embodiment of the utility model two is described:
The structural principle of present embodiment two such as Fig. 2 institute formula, the difference of present embodiment and embodiment one are that usb 1 is to be connected with SD interface 3, directly are not connected with USB Key chip.Utilize the pin circuit of SD interface more than USB interface, the USB interface circuit corresponding with the SD interface linked to each other, and the SD interface still directly to link to each other with bus.
In conjunction with Fig. 3 specific embodiment of the utility model three is described:
As shown in Figure 3, in USB Key, increase SD interface chip 4, and also comprised bus 224 in the USB Key chip 22, in this embodiment, USB interface directly is connected with bus 224, and make 22 pairs of usb 1s of USB Key chip carry out signal transmission control, and SD interface chip 4 links to each other with USB Key chip 22, and SD interface 3 links to each other with USB Key chip 22 by SD interface chip 4.
In conjunction with Fig. 4 specific embodiment of the utility model four is described:
As shown in Figure 4, in the present embodiment, USB Key has comprised the USB interface chip, and also comprise bus 224 in the USB Key chip 22, SD interface 3 directly is connected with bus 224, and make 22 pairs of SD interfaces of USB Key chip 3 carry out signal transmission control, and the USB interface chip links to each other with USB Key chip 22, and USB interface 3 links to each other with USB Key chip 22 by USB interface chip 4.
In conjunction with Fig. 5 specific embodiment of the utility model five is described:
As shown in Figure 5, in the present embodiment, USB Key comprises USB interface chip 5, with SD interface chip 4, and two kinds of interface chips of USB and SD all are to be connected on the USB Key chip 22, in concrete the connection, SD interface 3 is connected on the corresponding SD interface chip 4, USB is connect 1 mouthful be connected on the corresponding USB interface chip 5.
In above-mentioned several embodiment of the present utility model, USB Key chip can add a SPI(Serial Peripheral Interface) Serial Peripheral Interface 225, SPI interface 225 can send and receive serial data simultaneously.When wherein SD interface chip 4 or USB interface chip 5 can be selected to link to each other with USB Key interface chip 22 by SPI interface 225 respectively,
Above-mentioned with among USB interface and the embodiment that the SD interface links to each other, carrying out usb 1 when being connected with SD interface 3, the corresponding function connecting line of usb 1 is linked to each other with the corresponding function connecting line of SD interface 3, concrete, the positive source VCC of usb 1 can be linked to each other with ground wire GND with the positive source VCC of SD interface 3 respectively with ground wire GND, will link to each other with line the GND except VCC in the data line D-of usb 1 and D+ and the SD interface 3.
The utility model is a kind of multi-functional USB Key of double nip, and wherein usb 1 and SD interface 3 all are arranged on the side of USB Key housing 2, and usb 1 and SD interface 3 can be arranged on diverse location, equally also can be arranged on same position.
Because present SD interface all is very little TF card, and the size of TF is than little many of the size of USB interface, and also thin from the thickness.In the present embodiment, the SD interface comprises the first grafting body, described USB interface comprises the second grafting body, USB interface is public mouthful of ultra-thin USB-A, USB interface and SD interface are arranged on same position, when the second grafting body skids off, the second grafting body and the first grafting body are overlapped, upper slice be the second grafting body, lower is the first grafting body, and the gross thickness of two grafting bodies after stack this moment is the USB interface thickness of standard, conducting terminal and the USB conducting terminal of SD interface can be arranged on the same direction simultaneously, in implementation, when target electronic device is the SD interface, the second grafting body is slipped in the housing, the first grafting body that only stays sheet is inserted in the SD interface of electronic equipment, by the conducting terminal that arranges at the first grafting body, carry out data communication with electronic equipment; When target electronic device is that USB interface is, the second grafting body is skidded off housing, this moment, up and down two the grafting body thickness that mutually superposes was the USB interface thickness of standard, just in time satisfy corresponding USB interface size, grafting body after USB interface and the stack of SD interface is inserted in the USB interface of target electronic device, by the conducting terminal that arranges on the second grafting body, carry out data communication with electronic equipment.
In force can be as required, directly connect an access or output unit in bus, be used for demonstration information, and the input instruction, be used for non-productive operation.
It should be noted last that; above embodiment is the unrestricted the technical solution of the utility model in order to explanation only; although with reference to above-described embodiment the utility model is had been described in detail; those of ordinary skill in the art is to be understood that; still can make amendment or be equal to replacement the utility model, and not break away from protection domain of the present utility model.
Claims (10)
1. USB Key, comprise housing, USB Key chip and data communication interface, described USB Key built-in chip type is in described housing, described data communication interface is subjected to the signal controlling of described USB Key chip, it is characterized in that described data communication interface comprises SD interface and USB interface.
2. USB Key as claimed in claim 1 is characterized in that, described USB Key chip comprises bus, and described SD interface all links to each other with described bus with described USB interface.
3. USB Key as claimed in claim 1 is characterized in that, described USB Key chip comprises bus, and described USB interface links to each other with described SD interface, and described SD interface links to each other with described bus.
4. USB Key as claimed in claim 1, it is characterized in that, described USB Key also comprises the SD interface chip, described USB Key chip comprises bus, described USB interface directly is connected with described bus, described SD interface chip is connected with described USB Key chip, and described SD interface links to each other with described SD interface chip.
5. USB Key as claimed in claim 1, it is characterized in that, described USB Key also comprises the USB interface chip, described USB Key chip comprises bus, described SD interface is connected with described bus, described USB interface chip is connected with described USB Key chip, and described USB interface links to each other with described USB interface chip.
6. USB Key as claimed in claim 1, it is characterized in that, described USB Key also comprises USB interface chip and SD interface chip, described SD interface is connected with described SD interface chip, described USB interface is connected with described USB interface chip, described USB interface chip is connected with described USB Key chip, and described SD interface chip is connected with described USB Key chip.
7. USB Key as claimed in claim 3 is characterized in that, the power lead of the described USB interface power lead corresponding with described SD interface links to each other, and the All other routes in the data line of described USB interface and the described SD interface except power lead are connected.
8. such as the described USB Key of claim 1 to 7 any one, it is characterized in that described SD interface is arranged on the side of described housing, described USB interface is arranged on the side of described housing.
9. USB Key as claimed in claim 8 is characterized in that, described SD interface comprises the first grafting body, and described USB interface comprises the second grafting body; Described the first grafting body and described the second grafting body weight are folded, and described the second grafting body places described the first grafting body top; Described the second grafting body is public mouthful of telescopic USB-A type, the thickness of described the first grafting body is the SD interface thickness of standard, the thickness with after described the first grafting body stack of described the second grafting body is the USB interface thickness of standard, is provided with conducting terminal on described the first grafting body and described the second grafting body.
10. such as the described USB Key of claim 1 to 7 any one; it is characterized in that; described USB Key chip comprises CPU; reservoir and security component; described CPU carries out built-in cryptographic algorithm computing; described reservoir is used for depositing key and digital certificate, and described security component is used for the key and the digital certificate that leave described reservoir in are protected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120512409 CN202650014U (en) | 2011-12-09 | 2011-12-09 | USB Key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120512409 CN202650014U (en) | 2011-12-09 | 2011-12-09 | USB Key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650014U true CN202650014U (en) | 2013-01-02 |
Family
ID=47419088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120512409 Expired - Lifetime CN202650014U (en) | 2011-12-09 | 2011-12-09 | USB Key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202650014U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104272A (en) * | 2017-06-20 | 2018-12-28 | 上海策链信息科技有限公司 | Private key store method, system and computer readable storage medium |
-
2011
- 2011-12-09 CN CN 201120512409 patent/CN202650014U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104272A (en) * | 2017-06-20 | 2018-12-28 | 上海策链信息科技有限公司 | Private key store method, system and computer readable storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |