CN101645299A - High-speed safe U disk with expansible card reader - Google Patents
High-speed safe U disk with expansible card reader Download PDFInfo
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- CN101645299A CN101645299A CN 200910092463 CN200910092463A CN101645299A CN 101645299 A CN101645299 A CN 101645299A CN 200910092463 CN200910092463 CN 200910092463 CN 200910092463 A CN200910092463 A CN 200910092463A CN 101645299 A CN101645299 A CN 101645299A
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- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000006870 function Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 9
- 238000004088 simulation Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000013478 data encryption standard Methods 0.000 description 8
- 238000000151 deposition Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The invention relates to a high-speed safe U disk with expansible card reader, wherein the control unit of the U disk is respectively connected with a memory module and an interface unit through a busto exchange data; the control unit supports high-speed USB2.0 protocol and has a DES/TDES algorithm coprocessor with high performance; the memory module supports subarea and data encryption, and canuse the different mediums NAND Flash or TF card; the interface unit comprises a USB interface and a 7816 interface, wherein the former is used for exchanging the data between the U disk and the peripheral equipment, and the later supports ISO786 communication and is used for exchanging the data between the control unit and an intelligent card unit; the intelligent card unit is used for storing encryption key and can be expanded to be a card reader so as to expand the U disk as SIM-Copy, the USB Key. The high-speed safe U disk has the advantage of solving high-speed operation and data transmission, and is expanded to read card information.
Description
Technical field
The present invention relates to a kind of memory device, particularly relate to a kind of high-speed safe U disk that has expansible card reader.
Background technology
Along with arrival of information age, USB flash disk is with its transmission that more and more is used for data easy to carry.But, because the USB flash disk volume is less, lose easily, can cause the leakage of some data thus, so safe U disc occurred.The solution of safe U disc is divided two kinds substantially at present: main control chip is finished the encryption and decryption of data and is added smart card and carries out the data encrypting and deciphering operation, and the latter has higher security, but speed is slower.
Along with the USB2.0 broad application, the capacity of USB flash disk is also increasing, has also just produced the demand of encrypting for mass data, how to realize the problem that ciphering process becomes needs urgent solution fast.
On the other hand, because comparatively advanced, ripe now many safety techniques and achievement in research that smart card is integrated, have the incomparable safe reliability of other card systems, become the important barrier of realizing information security storage and transmission, snap into telecommunications card again to tax-controlling card from finance, smart card more and more is applied to our life.Many times reading of card image becomes a kind of needs, as telephone directory in the SIM card etc.
Therefore, the realization and the expanded application that solve high-speed computation and data transmission are the problem that market potential is arranged very much in reading of card image, Granted publication number discloses a kind of intelligent card type safe U disc for the utility model patent of CN201044180, this USB flash disk is on the basis of memory function, the combined with intelligent card technique can be strengthened data security.
But prior art is the combination with USB flash disk and smart card, is only limiting to add a sheet smart card on the function on the function of storage.
Summary of the invention
In view of the problem of existing USB flash disk technology existence, so fundamental purpose of the present invention is expanded the card reader of USB flash disk simultaneously, and made full use of the various functions of smart card in the high-speed transfer and the encryption that solve data.
To achieve these goals, the high-speed safe U disk that has expansible card reader of the present invention has adopted following technical proposals:
The high-speed safe U disk of expansible card reader function, USB flash disk comprises: the control module of USB flash disk, intelligent card unit, memory module and clock unit, the control module of described USB flash disk is by the system bus line data exchange of going forward side by side that is connected with the interface unit of intelligent card unit and memory module respectively.
Wherein, described control module is integrated at a high speed USB controller, high-performance symmetry algorithm coprocessor and storage device management device, to intelligent card unit with memory module manages and exchanges data, finish TDES (data encryption standards) computing of encrypted area data respectively; USB controller at a high speed is used to control the exchanges data that USB interface meets the USB2.0 agreement; High-performance symmetry algorithm coprocessor is used for DES/TDES (data encryption standards) high-speed computation of mass data to be handled; The storage device management device is used to manage NAND Flash or TF storage card, finishes the quick storage of data.
Wherein, described intelligent card unit meets the interface standard of ISO7816, is realized supporting all kinds of contact intelligent cards by the control module simulation, is used for the encrypted data region storing encryption key, finishes the safety certification of USB flash disk, can expand to the card reader draw-in groove.
Wherein, described memory module comprises Flash and high capacity NAND Flash or the TF storage card that is used for procedure stores, but jumbo memory device subregion, can encrypt; Described interface unit comprises USB interface and ISO7816 interface, and the former is used for the exchanges data of USB flash disk and external unit, and the latter supports ISO7816 communication, is used for the exchanges data of control module and intelligent card unit; Described Clock Managing Unit links to each other with the equipment main functional modules, and provides suitable clock signal for each module.
Wherein, the described Flash that is used for procedure stores is used to deposit the code of control module; Described mass-memory unit can be that NAND Flash can be the TF storage card also, is used for depositing of data.
Wherein, described intelligent card unit after chuck separates, supports to meet the various cards of ISO7816 standard, is used to realize the various Application Expansion of USB flash disk.
Wherein, described capacity storage equipment can be done subregion as required and handle, and subregion is carried out encryption.
Wherein, described clock module provides clock signal for control module, and other unit clocks are provided by control module.
Compared with prior art, the present invention has the following advantages:
1. in order to improve the security performance of USB flash disk, the utility model combines smart card security mechanism, makes USB flash disk when having high security, accomplishes the quick realization of enciphering/deciphering.
2.U coil the mode of taking chuck to separate with smart card, draw-in groove is the contact ISO7816 draw-in groove of standard, is applicable to the card of any ISO7816 of meeting standard.When on the one hand chuck separately carried, this mode can be brought higher security to data message, on the other hand, after smart card takes out, by with the combining of related software, can expand another function---card reader for the utility model.With different software combinations, can realize the function of different cards is used:
1) telecommunications card, SIM-Copy uses, and is mainly used in the derivation and the preservation of telephone directory and note, can support existing all kinds of telecommunications card (SIM card, PIM card, UIM card etc.);
2) tax-controlling card is inquired about the relevant information of paying taxes;
3) PKI card can expand to U-Key.
Description of drawings
Fig. 1 is the described high-speed safe U disk functional-block diagram that has expansible card reader.
Embodiment
Come the high-speed safe U disk that has expansible card reader of the present invention is described in further detail below in conjunction with accompanying drawing and specific embodiment.
The high-speed safe U disk of expansible card reader function, comprise USB flash disk 100, control module 110, intelligent card unit 130, memory module 140 and clock unit 150, the control module 110 of described USB flash disk is by the system bus line data exchange of going forward side by side that is connected with the interface unit 120 of intelligent card unit 130 and memory module 140 respectively.
Wherein, described control module 110 is integrated USB controller 112, high-performance symmetry algorithm coprocessor 113 and storage device management device 111 at a high speed, respectively intelligent card unit 130 and memory module 140 are managed and exchanges data, finish the TDES computing of encrypted area data; USB controller 112 at a high speed is used to control the exchanges data that usb 1 21 meets the USB2.0 agreement; High-performance symmetry algorithm coprocessor 113 is used for the DES/TDES high-speed computation of mass data to be handled; Storage device management device 111 is used to manage NAND Flash or TF storage card, finishes the quick storage of data.
Wherein, described intelligent card unit 130 meets the interface standard of ISO7816, is realized by control module 110 simulations, can support all kinds of contact intelligent cards, is used for the encrypted data region storing encryption key, finishes the safety certification of USB flash disk, can expand to the card reader draw-in groove.
Wherein, described memory module 140 comprises Flash and high capacity NAND Flash or the TF storage card that is used for procedure stores, but jumbo memory device subregion, can encrypt; Described interface unit 120 comprises usb 1 21 and 7816 interfaces 122, and usb 1 21 is used for the exchanges data of USB flash disk and external unit, and 7816 interfaces 122 are supported ISO7816 communication, are used for the exchanges data of control module 110 and intelligent card unit 130; Described Clock Managing Unit 150 links to each other with the equipment main functional modules, and provides suitable clock signal for each module.
Wherein, the described Flash that is used for procedure stores is used to deposit the code of control module 110; Described mass-memory unit can be that NAND Flash can be the TF storage card also, is used for depositing of data.
Wherein, described intelligent card unit 130 after chuck separates, supports to meet the various cards of ISO7816 standard, is used to realize the various Application Expansion of USB flash disk.
Wherein, described capacity storage equipment can be done subregion as required and handle, and subregion is carried out encryption.
Wherein, described clock module 150 provides clock signal for control module 110, and other unit clocks are provided by control module 110.
Claims (8)
1. the high-speed safe U disk of expansible card reader function, comprise USB flash disk, it is characterized in that: described USB flash disk also comprises control module, intelligent card unit, memory module and clock unit, the control module of described USB flash disk is by the system bus line data exchange of going forward side by side that is connected with the interface unit of intelligent card unit and memory module respectively, wherein:
Described control module is integrated at a high speed USB controller, high-performance symmetry algorithm coprocessor and storage device management device respectively to intelligent card unit with memory module manages and exchanges data, finished the TDES computing of encrypted area data;
Described interface unit comprises USB interface and 7816 interfaces, and USB interface is used for the exchanges data of USB flash disk and external unit, and 7816 interfaces are supported ISO786 communication, is used for the exchanges data of control module and intelligent card unit;
Described Clock Managing Unit links to each other with the equipment main functional modules, and provides clock signal for each module.
2. according to the high-speed safe U disk of the described expansible card reader function of claim 1, it is characterized in that: described control module is integrated at a high speed USB controller is used to control the exchanges data that USB interface meets the USB2.0 agreement; Be integrated in the high-performance symmetry algorithm coprocessor of described control module, the DES/TDES high-speed computation that is used for mass data is handled; Described control module is integrated storage device management device is used to manage NAND Flash or TF storage card, finishes the quick storage of data.
3. according to the high-speed safe U disk of the described expansible card reader function of claim 1, it is characterized in that: described card 7816 interfaces are realized by the control module simulation, are used for the exchanges data of control module and intelligent card unit.
4. according to the high-speed safe U disk of the described expansible card reader function of claim 1, it is characterized in that: the described Flash that is used for procedure stores is used to deposit the code of control module; Described mass-memory unit is NAND Flash or TF storage card.
5. according to the high-speed safe U disk of the described expansible card reader function of claim 4, it is characterized in that: described capacity storage equipment is done subregion as required and is handled, and subregion is carried out encryption.
6. according to the high-speed safe U disk of the described expansible card reader function of claim 1, it is characterized in that: described clock module provides clock signal for control module, and the clock of intelligent card unit and memory module is provided by control module.
7. according to the high-speed safe U disk of the described expansible card reader function of claim 1, it is characterized in that: described memory module comprises Flash and the high capacity NAND Flash that is used for procedure stores, but jumbo memory device subregion, can encrypt.
8. according to the high-speed safe U disk of the described expansible card reader function of claim 1, it is characterized in that: described memory module also comprises the TF storage card, but jumbo memory device subregion, can encrypt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910092463.4A CN101645299B (en) | 2009-09-15 | 2009-09-15 | High-speed safe U disk with expansible card reader |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910092463.4A CN101645299B (en) | 2009-09-15 | 2009-09-15 | High-speed safe U disk with expansible card reader |
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| CN101645299A true CN101645299A (en) | 2010-02-10 |
| CN101645299B CN101645299B (en) | 2014-03-05 |
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| CN200910092463.4A Expired - Fee Related CN101645299B (en) | 2009-09-15 | 2009-09-15 | High-speed safe U disk with expansible card reader |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103020548A (en) * | 2012-11-22 | 2013-04-03 | 郑依琳 | Card reader-based electronic signing tool and card reader |
| CN106911467A (en) * | 2015-12-23 | 2017-06-30 | 北京握奇智能科技有限公司 | A kind of data confidentiality storage and the method for transmission |
| CN108833090A (en) * | 2018-05-25 | 2018-11-16 | 四川斐讯信息技术有限公司 | It is a kind of to store the encryption method of equipment, decryption method and storage equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100498851C (en) * | 2006-09-28 | 2009-06-10 | 江苏恒宝股份有限公司 | Multiple uses KEY device with NFC function |
| CN101236674A (en) * | 2008-02-02 | 2008-08-06 | 东信和平智能卡股份有限公司 | Intelligent cipher key equipment and method for information exchange with external apparatus |
-
2009
- 2009-09-15 CN CN200910092463.4A patent/CN101645299B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103020548A (en) * | 2012-11-22 | 2013-04-03 | 郑依琳 | Card reader-based electronic signing tool and card reader |
| CN106911467A (en) * | 2015-12-23 | 2017-06-30 | 北京握奇智能科技有限公司 | A kind of data confidentiality storage and the method for transmission |
| CN108833090A (en) * | 2018-05-25 | 2018-11-16 | 四川斐讯信息技术有限公司 | It is a kind of to store the encryption method of equipment, decryption method and storage equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101645299B (en) | 2014-03-05 |
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