CN201111183Y - Electric cipher key - Google Patents
Electric cipher key Download PDFInfo
- Publication number
- CN201111183Y CN201111183Y CNU2007201698143U CN200720169814U CN201111183Y CN 201111183 Y CN201111183 Y CN 201111183Y CN U2007201698143 U CNU2007201698143 U CN U2007201698143U CN 200720169814 U CN200720169814 U CN 200720169814U CN 201111183 Y CN201111183 Y CN 201111183Y
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- CN
- China
- Prior art keywords
- card chip
- smart card
- antenna
- cryptographic keys
- cpu
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses an electronic cipher key, which is invented for enabling the electronic cipher key to work under the non-contact communication mode. The electronic cipher key comprises a CPU, a non-contact smart card chip connected with the CPU, and an antenna connected to the non-contact smart card chip. Therefore, the electronic cipher key can work under the non-contact communication mode through the non-contact smart card chip in the electronic cipher key and the antenna connected to corresponding pins of the non-contact smart card chip, and the universal property of the electronic cipher key is enhanced.
Description
Technical field
The utility model relates to a kind of Electronics Cryptographic Keys, relates in particular to a kind of can either being operated under the contactless communication mode, can be operated in the Electronics Cryptographic Keys under the contact communication mode again.
Background technology
Intelligent card chip comprises two kinds of contact type smart card chip and contact type intelligent card chips.Contact type smart card chip in use, card-reading machine must contact with the contact of card could with stick into line data and exchange.And contact type intelligent card chip claims the radio-frequency card chip again, adopts rf modulations mode and card-reading machine to carry out exchanges data.
Because in the use of contact type smart card chip, card-reading machine must and the contact of card contact could with stick into capable message exchange, so the serious wear of card, the loose contact that this just may cause card and read and write facility, and cause data transmission fault.In addition, the traffic rate of contact type smart card chip is lower.
The embedded integrated circuit (IC) chip of contactless smart card chip is provided with wireless radio frequency modules, and with the corresponding connection of this wireless radio frequency modules the sky wire pin, this day wire pin be used for being electrically connected with antenna.Because contact type intelligent card chip is to adopt the mode and the card-reading machine of rf modulations to carry out exchanges data, thereby in use just can avoid the problems referred to above of contact type smart card chip.
According to the ISO/IEC7816 standard, the pinout of contact type intelligent card chip is as follows: Vcc supply voltage pin, RST reset signal pin, CLK clock signal pin, GND grounding pin, VPP program voltage pin, I/O I/O pin, simultaneously, contact C1, C2, C3, C5, C6, the C7 on the corresponding respectively card of these pins surface, wherein C4 and C8 do not use.
For USBKey (Electronics Cryptographic Keys), it is a kind of hardware interface device that has USB interface, and little and safe obtained widely used owing to its volume.USBkey is embedded with CPU, and the contact type smart card chip that is connected with CPU, USB interface.Wherein CPU is used for handling by communicating by letter between the exterior read-write equipments such as USB (USB (universal serial bus)) interface and computing machine, and contact type smart card chip is used for storage key, enciphering and deciphering algorithm etc.
Because what adopt is contact type smart card chip, therefore, USBkey must contact through exterior read-write equipments such as USB interface and computing machines, and the user could operation such as read and write to it.Thereby this has just limited the use of USBkey greatly, and the versatility of USBkey product is reduced.
The utility model content
The utility model provides a kind of Electronics Cryptographic Keys that can be operated under the contactless communication mode.
The utility model is by the following technical solutions:
A kind of Electronics Cryptographic Keys comprises: CPU, and the contactless smart card chip that is connected with CPU, and be connected to antenna on the described contactless smart card chip.
Described USBkey also comprises: the USB interface that is connected with described CPU.
Described USBkey also comprises: the storer that is connected with described CPU.
Two pins of described antenna are connected respectively to the C4 and the C8 pin of contactless smart card chip.
Described USBkey also comprises upper and lower shell, and is provided with groove in the edge, surface of contact upper edge of upper and lower shell direction, and described antenna is embedded in the described groove.
Described USBkey also comprises upper and lower shell, and is provided with groove along a shell inboard wherein along the edge direction, and described antenna is embedded in the described groove.
Described antenna adopts some glue, hot melt, adhesion process to be fixed in the described groove.
Described antenna adopts the enamel covered wire coiling, and the number of turns is 4, and the quality factor of described antenna are 80, and when frequency was 13.56MHz, resistance was 3.8 ohm, and inductance is 3.68UH.
Compared with prior art, contactless smart card chip by USBkey inside, and be connected to antenna on the contactless smart card chip respective pins, make the utility model can be operated under the mode of contactless communication, thereby the use versatility of this USBkey has obtained enhancing.
Description of drawings
Fig. 1 is a structural drawing of the present utility model;
Fig. 2 is concrete structure figure of the present utility model;
Fig. 3 is preferred embodiment figure of the present utility model.
Embodiment
For the advantage that makes technical solutions of the utility model is clearer, describe the utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, described USBkey comprises: CPU, and the contactless smart card chip that is connected with CPU, and be connected to antenna on the described contactless smart card chip.
CPU and contactless smart card chip carry out exchanges data according to the communication protocol of ISO/IEC7816 normalized definition; And the noncontact intelligent card chip is according to the communication protocol of ISO/IEC14443 normalized definition, carries out exchanges data by antenna and outside non-contact reader.
The course of work of USBkey is described below under the contactless communication mode:
When the work of the non-contact reader of outside, it is modulated to after with digital coding to be sent on the electromagnetic wave of one group of fixed frequency (frequency is 13.56MHz).When USBkey when the non-contact reader because the resonance frequency of the antenna that the contactless smart card chip is connected is identical with the electromagnetic frequency that non-contact reader sends, therefore described antenna produces and is coupled, and stored charge.After electric charge is accumulated to certain numerical value, for the contactless smart card chip provides operating voltage, reset signal, system clock etc.Data behind the coding that non-contact reader sends are through the decoding of contactless smart card chip.By the contactless smart card chip decoded data are handled at last.
By contactless smart card chip, and be connected to antenna on the contactless smart card chip respective pins, make the utility model can be operated under the mode of contactless communication in USBkey inside.
As described in Figure 2, described USBkey also comprises: the USB interface, the storer that are connected with described CPU.
Under the contact communication mode, the working method of USBkey is with of the prior art identical.
By contactless smart card chip in USBkey inside, and be connected to antenna on the contactless smart card chip respective pins, make the utility model both can be operated under the mode of contact communication, can be operated under the mode of contactless communication again, thereby the use versatility of this USBkey has obtained enhancing.
In the use, if the USBkey free time, this USBkey can enter under any communication mode at any time, promptly contacts communication mode or contactless communication mode.When this USBkey is operated in the contact communication mode,, then need close current contact communication mode if want to switch to the contactless communication mode.
In addition, described USBkey also comprises upper and lower shell, and is provided with groove in the edge, surface of contact upper edge of upper and lower shell direction, and described antenna is embedded in the described groove.Such setting makes the area maximum of described antenna, thereby the effect of transmission signals is best, simultaneously, when upper and lower shell welds together, antenna can be fixed between the surface of contact of upper and lower shell.Described groove also can be provided with along the edge direction along a shell inboard wherein.
That described antenna can adopt is gluing, hot melt, some glue or other modes are fixed in the groove of shell.As preferably, the utility model adopts gluing process antenna to be fixed in the groove of shell, and some glue position is positioned at the position of four chamferings of outer casing groove.
Fig. 3 is preferred embodiment of the present utility model.As shown in Figure 3, described USBkey comprises upper and lower shell (one of them shell 3 only is shown among the figure), and the contacted surface of contact of upper and lower shell is provided with groove.
Described USB also comprises CPU, the storer that is connected with described CPU, USB interface, contactless smart card chip, and antenna 4.Two pin ones of described antenna and 2 are connected respectively on the C4 and C8 pin of described contactless smart card chip.Simultaneously, described antenna is embedded in the groove of shell.So just make the area maximum of described antenna, the effect of transmission signals is best.Simultaneously, when upper and lower shell welds together, antenna can be fixed between the surface of contact of upper and lower shell.CPU, storer, contactless smart card chip and USB interface are arranged on the same circuit board.
In addition, described groove also can be provided with along the edge direction along a shell inboard wherein.
In the utility model, antenna adopts the enamel covered wire coiling.For the parameter of antenna,, can come by experiment to determine that simultaneously, these parameters must meet the requirement of ISO/IEC14443 as Q (quality factor), R (resistance), L (inductance) etc.By a series of experiment, the parameter values of Que Dinging is at last: Q=80, and when frequency is 13.56MHz, R=3.8ohm, L=3.68UH.
In this embodiment, antenna adopts gluing process to be fixed in the groove of shell, and some glue position is positioned at the position of four chamferings of outer casing groove.
After treating that whole element assemblings are finished, the upper and lower shell of USBkey can adopt ultrasonic soldering or clamping or screw technology to weld together.
It should be noted that because antenna is along the direction setting of shell edge, be subject to the influence of electromagnetic interference (EMI), so in the design process of the circuit board of USBkey, note reducing the generation of interference.In order to reduce interference, can adopt the increase shielding material, avoid large tracts of land cloth line loop, and reduce measures such as the deposited copper face of circuit board is long-pending.At the utility model, deposited copper face that can be by reducing circuit board as far as possible is long-pending, and the area that reduces the cloth line loop reduces interference, to obtain better communication efficiency.
In sum, because the setting of contactless smart card chip and antenna makes the utility model not only can be operated under the communication mode of contact, and can be operated under the contactless communication mode, make the usable range of this USBkey product enlarge, strengthened versatility.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those skilled in the art can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (9)
1. Electronics Cryptographic Keys, comprising: CPU is characterized in that also comprising the contactless smart card chip that is connected with CPU, and is connected to the antenna on the described contactless smart card chip.
2. Electronics Cryptographic Keys according to claim 1 is characterized in that, also comprises: the USB interface that is connected with described CPU.
3. Electronics Cryptographic Keys according to claim 2 is characterized in that, also comprises: the storer that is connected with described CPU.
4. Electronics Cryptographic Keys according to claim 1 is characterized in that, two pins of described antenna are connected respectively to the C4 and the C8 pin of contactless smart card chip.
5. Electronics Cryptographic Keys according to claim 1 is characterized in that, also comprises upper and lower shell, and is provided with groove in the edge, surface of contact upper edge of upper and lower shell direction, and described antenna is embedded in the described groove.
6. Electronics Cryptographic Keys according to claim 1 is characterized in that, also comprises upper and lower shell, and is provided with groove along a shell inboard wherein along the edge direction, and described antenna is embedded in the described groove.
7. according to claim 5 or 6 described Electronics Cryptographic Keys, it is characterized in that described antenna adopts some glue, hot melt, adhesion process to be fixed in the described groove.
8. Electronics Cryptographic Keys according to claim 1 is characterized in that, described antenna adopts the enamel covered wire coiling.
9. Electronics Cryptographic Keys according to claim 8 is characterized in that, the number of turns of described employing enamel covered wire coiled antenna is 4, and quality factor are 80, and when frequency was 13.56MHz, resistance was 3.8 ohm, and inductance is 3.68UH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201698143U CN201111183Y (en) | 2007-07-20 | 2007-07-20 | Electric cipher key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201698143U CN201111183Y (en) | 2007-07-20 | 2007-07-20 | Electric cipher key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201111183Y true CN201111183Y (en) | 2008-09-03 |
Family
ID=39895721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201698143U Expired - Lifetime CN201111183Y (en) | 2007-07-20 | 2007-07-20 | Electric cipher key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201111183Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902325A (en) * | 2010-07-02 | 2010-12-01 | 恒宝股份有限公司 | Wireless communication technology-based Key equipment |
| CN102236802A (en) * | 2010-04-20 | 2011-11-09 | 深圳市安捷信联科技有限公司 | Multifunctional smart card reader-writer |
| CN101751709B (en) * | 2008-12-02 | 2012-02-29 | 河南省电力公司南阳供电公司 | Master key requiring password authorization |
-
2007
- 2007-07-20 CN CNU2007201698143U patent/CN201111183Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101751709B (en) * | 2008-12-02 | 2012-02-29 | 河南省电力公司南阳供电公司 | Master key requiring password authorization |
| CN102236802A (en) * | 2010-04-20 | 2011-11-09 | 深圳市安捷信联科技有限公司 | Multifunctional smart card reader-writer |
| CN102236802B (en) * | 2010-04-20 | 2013-06-05 | 深圳市国民电子商务有限公司 | Multifunctional smart card reader-writer |
| CN101902325A (en) * | 2010-07-02 | 2010-12-01 | 恒宝股份有限公司 | Wireless communication technology-based Key equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Watcdata Intelligent Technology Co., Ltd. Assignor: Beijing Woqi Data System Co., Ltd. Contract fulfillment period: 2009.1.1 to 2015.1.1 Contract record no.: 2009990000420 Denomination of utility model: Electronic cipher key Granted publication date: 20080903 License type: Exclusive license Record date: 20090505 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.1.1 TO 2015.1.1; CHANGE OF CONTRACT Name of requester: BEIJING WOQI SMART SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20090505 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080903 |