CN201429848Y - Encrypted USB device - Google Patents
Encrypted USB device Download PDFInfo
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- CN201429848Y CN201429848Y CN2009201329951U CN200920132995U CN201429848Y CN 201429848 Y CN201429848 Y CN 201429848Y CN 2009201329951 U CN2009201329951 U CN 2009201329951U CN 200920132995 U CN200920132995 U CN 200920132995U CN 201429848 Y CN201429848 Y CN 201429848Y
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Abstract
The utility model provides an encrypted USB device, which is adaptable to the technical field of electronic information and comprises a USB interface and a storage module. The encrypted USB device further comprises a control module and an input module, wherein the control module is respectively electrically connected with the storage module and the USB interface, controls the USB interface to build logical connection with an external host and enables the external host to visit the storage module of the encrypted USB device via the USB interface when an received input code is the same with a preset code, and the input module is electrically connected with the control module and used for receiving codes inputted by a user. The encrypted USB device can effectively prevent an illegal user fromusing the USB device, has no need for engagement of a special sensor and an encrypted chip, and is low in cost, convenient for users to operate, convenient in operation, fast and easy to be realized.
Description
Technical field
The utility model belongs to electronic information technical field, relates in particular to a kind of encryption USB device.
Background technology
(Universal Serial Bus USB) is a kind of current interface standard that is widely used in multiple electronic product to USB (universal serial bus), and its major advantage is to support plug and play, easy to install.
Fast development along with computer technology and information storage technology, the equipment with USB interface is used in people's daily life, office and study etc. more and more, include but not limited to USB flash disk, portable hard drive, solid state hard disc (Solid State Disk, SSD), MP3 etc.Increasing user has been accustomed to a large amount of document storages in the equipment with USB interface, can preserve or transmit file easily by it, this has brought facility to people undoubtedly, but also bring the problem of security---the equipment of USB interface simultaneously, especially common U disk, portable hard drive etc., in case lose or because of other reasons is obtained by others, then others also can use this USB device, and data wherein also almost can be sayed without any confidentiality.Privacy, secret and other sensitive informations are exposed to bare bare area in face of others, and the loss that brings thus is inestimable.
Current, most USB device are not to be with encryption function on the market, the USB device price of minority band encryption function is very expensive, its encryption method mainly is following two kinds: 1, use encrypting fingerprint, the user need could use USB device by fingerprint authentication, use encrypting fingerprint, need special-purpose fingerprint sensor and corresponding encryption chip, the hardware circuit design complexity; 2, use facial characteristics to encrypt, the user need could use USB device by the facial characteristics checking, uses facial characteristics to encrypt, and needs corresponding encryption chip and camera and cooperates.
Adopt the encryption USB device of existing two kinds of encryption methods preparation; not only price is very expensive; and, cause the also have more than is needed USB device of legal users owing to fingerprint and facial characteristics usually can change in unexpected injury, be not easy to use so use fingerprint and facial characteristics to encrypt.
Summary of the invention
The purpose of this utility model is to provide a kind of encryption USB device, is intended to solve existing existing encryption USB device because of the complicated expensive problem of encryption method.
The utility model is achieved in that a kind of encryption USB device, comprising: USB interface and memory module, and described encryption USB device also comprises:
Be electrically connected respectively with described memory module and described USB interface, be used for when the input password that receives is identical with preset password, control described USB interface and set up logic with external host and be connected, make external host can visit the control module of the memory module of described encryption USB device by described USB interface;
Be electrically connected with described control module, be used to receive the load module of the password of user's input.
Described encryption USB device also comprises:
Be electrically connected respectively with described load module and control module, be used to provide the power module of the operating voltage of described load module and control module.
Further, described encryption USB device also comprises:
Be electrically connected with described control module, be used to show the display module of input state.Further, described encryption USB device also comprises:
Be electrically connected with described control module, be used to show the display module of input state;
Described power module also is electrically connected with described display module, is used to provide the operating voltage of described display module.
Further, described display module is LCD display module or LED display module.
Another purpose of the present utility model also is to provide a kind of encryption USB device, comprising: the USB module, and described USB module comprises control module, and the usb interface unit and the storage unit that are electrically connected with control module, described encryption USB device also comprises:
Be electrically connected with the described usb interface unit of described USB module, be used to control described USB module and set up logic with external host and be connected, make the USB analog switch of the storage unit of the addressable described USB module of external host;
Be electrically connected with described USB analog switch, be used for when the input password that receives is identical with preset password, controlling the control module of described USB analog switch conducting;
Be electrically connected with described control module, be used to receive the load module of the password of user's input;
Be electrically connected with described USB analog switch, be used for setting up the USB interface that is electrically connected with external host.
Further, described encryption USB device also comprises:
Be electrically connected respectively with described load module and control module, be used to provide the power module of the operating voltage of described load module and control module.
Further, described encryption USB device also comprises:
Be electrically connected with described control module, be used to show the display module of input state.
Further, described encryption USB device also comprises:
Be electrically connected with described control module, be used to show the display module of input state; Described power module also is electrically connected with described display module, is used to provide the operating voltage of described display module.
Further, described display module is LCD display module or LED display module.
In the utility model, control module will be compared from password and preset password that load module receives, if both are identical, will then control USB device and will set up logic with external host and be connected, with the external host swap data.The utility model not only can effectively stop the disabled user to use USB device, and does not need special-purpose sensor and encryption chip to cooperate, and cost is low, only need the user to import password authentification, be convenient to user's operation from load module, and easy to operate, fast, be easy to realize.
Description of drawings
Fig. 1 is the pin definitions figure of USB interface;
Fig. 2 is the structural representation of the encryption USB device that provides of the utility model first embodiment;
Fig. 3 is the structural representation of the encryption USB device that provides of the utility model second embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
In the utility model embodiment, control module will be compared from password and preset password that load module receives, if both are identical, then controlling USB device sets up logic with external host and is connected, with the external host swap data, not only can effectively stop the disabled user to use USB device, and not need special-purpose sensor and encryption chip to cooperate, cost is low, only need the user to import password authentification, be convenient to user's operation from load module, and easy to operate, fast, be easy to realize.
Fig. 1 is the pin definitions of USB interface, for convenience of explanation, only shows the part that the utility model embodiment is correlated with.The pin of USB interface comprises power lead 1, data line 2, data line 3 and ground wire 4.
The structure of the encryption USB device that Fig. 2 provides for the utility model first embodiment for convenience of explanation, only shows the part that the utility model embodiment is correlated with.This encryption USB device comprises: load module 21, control module 22, memory module 23 and USB interface 24.
With the load module 21 that also is useful on the reception user input instruction that control module 22 is electrically connected, this input instruction comprises super code and the ordinary password that the user imports.
Concrete principle of work is: set in advance ordinary password and super code in control module 22, super code is just set when the encryption USB device is dispatched from the factory, the corresponding super code of each USB encryption device.Set arbitrarily when ordinary password can be used for the first time by the user and can in follow-up use, change; Encrypt USB device and be connected to external host by USB interface 24, at this moment, have only the power lead 1 and the ground wire 4 of USB interface 24 in running order, the data line 2 and the data line 3 of USB interface 24 are not worked, and external host provides the work required voltage by USB interface 24 for control module 22 and the load module of encrypting in the USB device 21; When the user imports passwords from load module 21, control module 22 receives after this input password, compare with default ordinary password, if the input password is identical with default ordinary password, the then data line 2 of USB interface 24 and data line 3 work, this moment, external host just can carry out data interaction with the encryption USB device.If the ordinary password of input is incorrect, then need re-enter, repeatedly import incorrect after, it is promptly locked to encrypt USB device, but the just release of super code that need set in advance from load module 21 inputs; As preferred embodiment of the present utility model, when the errors number of importing ordinary password as the user reaches certain number of times, control module 22 may command are encrypted USB device, no longer receive the instruction of user, even make the data of encrypting in USB device self-destruction or the destruction encryption USB device by load module 21 inputs.In the utility model embodiment, encrypt USB device and also comprise display module, itself and control module 22 are electrically connected, be used to show input state, for example can show " please input password " or states such as " password bad please re-enter ", this display module can be LCD display module or LED display module.In the utility model embodiment, data line 2 in the control module 22 control USB interface 24 is set up logic with data line 3 and external host and is connected, make external host can encrypt the memory module 23 of USB device by USB interface 24 visits, adopt this method, encrypting in the USB device does not need power module, encrypts power lead that USB device can be by USB interface 24 and ground wire directly from the required voltage of external host acquisition work.Present embodiment can be realized the encryption to USB device under the relatively low situation of the Material Cost that increases, this technical scheme requires control module 22 abundant I/O port to be arranged with control load module 21.
As another embodiment of the present utility model, control module 22 realizes that with ground wire setting up logic with external host is connected by the power lead of control USB interface 24, make external host can encrypt the memory module 23 of USB device by USB interface 24 visits, do not work because of the power lead and the ground wire of USB interface 24 this moment, can not from external host, obtain power supply so encrypt USB device, need in encrypting USB device, add a power module, encrypt the operate as normal such as ability such as control module 22 grades in the USB device, power module provides control module 22 and the required voltage of load module 21 work, encrypting USB device has display module, power module that the voltage that provides display module work required also is provided.
Fig. 3 shows the structure of the encryption USB device that the utility model second embodiment provides, and for convenience of explanation, only shows the part that the utility model embodiment is correlated with.This encryption USB device comprises: load module 31, control module 32, USB interface 33, USB analog switch 34 and USB module 35.
Concrete principle of work is: set in advance ordinary password and super code in control module 32, super code is just set when the encryption USB device is dispatched from the factory, the corresponding super code of each USB encryption device.Set arbitrarily when ordinary password can be used for the first time by the user and can in follow-up use, change; Encrypt USB device and be connected to external host by USB interface 33, at this moment, have only the power lead 1 and the ground wire 4 of USB interface 33 in running order, the data line 2 and the data line 3 of USB interface 33 are not worked, and external host provides the work required voltage by USB interface 33 for control module 32 and the load module of encrypting in the USB device 31; When the user imports passwords from load module 31, control module 32 receives after this input password, compare with default ordinary password, if the input password is identical with default ordinary password, then trigger 34 conductings of USB analog switch so that the USB that sets up between USB module 35 and the external host on the logical meaning connects, make external host can visit USB module 35, be the data line 2 and data line 3 work of USB interface 33, this moment, external host can carry out data interaction with the encryption USB device, the data of storage in the promptly addressable USB module 35.If the ordinary password of input is incorrect, then need re-enter, repeatedly import incorrect after, it is promptly locked to encrypt USB device, but the just release of super code that need set in advance from load module 31 inputs; As preferred embodiment of the present utility model, when the errors number of importing ordinary password as the user reaches certain number of times, control module 32 may command are encrypted USB device, no longer receive the instruction of user by load module 31 inputs, even make and encrypt the USB device self-destruction or destroy the data of encrypting in the USB device, be i.e. data of storage in the USB module 35.In the utility model embodiment, encrypt USB device and also comprise display module, itself and control module 32 are electrically connected, be used to show input state, for example can show " please input password " or states such as " password bad please re-enter ", this display module can be LCD display module or LED display module.In the present embodiment, the data line that control module 32 is controlled in the USB interface 33 by the conducting of control USB analog switch 34 is connected with external host, make external host can visit the storage unit of USB modules 35 by USB interface 33, adopt this method, encrypting in the USB device does not need power module, encrypts power lead that USB device can be by USB interface 33 and ground wire directly from the required voltage of external host acquisition work.In the present embodiment, do not need to buy in addition USB device, only need prior USB equipment is transformed, can realize the encryption function of USB device, saved cost with encryption function.
As another embodiment of the present invention, control module 32 realizes that with ground wire setting up logic with external host is connected by the power lead of control USB interface 33, make external host can visit the storage unit of USB modules 35 by USB interface 33, do not work because of the power lead and the ground wire of USB interface 33 this moment, can not from external host, obtain power supply so encrypt USB device, need in encrypting USB device, add a power module, encrypt the operate as normal such as ability such as control module 32 grades in the USB device, power module provides control module 32 and the required voltage of load module 31 work, encrypting USB device has display module, power module that the voltage that provides display module work required also is provided.
In the utility model embodiment, control module will be compared from password and preset password that load module receives, if both are identical, then controlling USB device sets up logic with external host and is connected, with the external host swap data, not only can effectively stop the disabled user to use USB device, and not need special-purpose sensor and encryption chip to cooperate, cost is low, only need the user to import password authentification, be convenient to user's operation from load module, and easy to operate, fast, be easy to realize.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1, a kind of encryption USB device comprises: USB interface and memory module is characterized in that described encryption USB device also comprises:
Be electrically connected respectively with described memory module and described USB interface, be used for when the input password that receives is identical with preset password, control described USB interface and set up logic with external host and be connected, make external host can visit the control module of the memory module of described encryption USB device by described USB interface; And
Be electrically connected with described control module, be used to receive the load module of the password of user's input.
2, encryption USB device as claimed in claim 1 is characterized in that, described encryption USB device also comprises:
Be electrically connected respectively with described load module and control module, be used to provide the power module of the operating voltage of described load module and control module.
3, encryption USB device as claimed in claim 1 is characterized in that, described encryption USB device also comprises:
Be electrically connected with described control module, be used to show the display module of input state.
4, encryption USB device as claimed in claim 2 is characterized in that, described encryption USB device also comprises:
Be electrically connected with described control module, be used to show the display module of input state;
Described power module also is electrically connected with described display module, is used to provide the operating voltage of described display module.
As claim 3 or 4 described encryption USB device, it is characterized in that 5, described display module is LCD display module or LED display module.
6, a kind of encryption USB device comprises: the USB module, described USB module comprises control module, and with usb interface unit and storage unit that control module is electrically connected, it is characterized in that described encryption USB device also comprises:
Be electrically connected with the described usb interface unit of described USB module, be used to control described USB module and set up logic with external host and be connected, make the USB analog switch of the storage unit of the addressable described USB module of external host;
Be electrically connected with described USB analog switch, be used for when the input password that receives is identical with preset password, controlling the control module of described USB analog switch conducting;
Be electrically connected with described control module, be used to receive the load module of the password of user's input;
Be electrically connected with described USB analog switch, be used for setting up the USB interface that is electrically connected with external host.
7, encryption USB device as claimed in claim 6 is characterized in that, described encryption USB device also comprises:
Be electrically connected respectively with described load module and control module, be used to provide the power module of the operating voltage of described load module and control module.
8, encryption USB device as claimed in claim 6 is characterized in that, described encryption USB device also comprises:
Be electrically connected with described control module, be used to show the display module of input state.
9, encryption USB device as claimed in claim 7 is characterized in that, described encryption USB device also comprises:
Be electrically connected with described control module, be used to show the display module of input state;
Described power module also is electrically connected with described display module, is used to provide the operating voltage of described display module.
10, encrypt USB device as claimed in claim 8 or 9, it is characterized in that, described display module is LCD display module or LED display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201329951U CN201429848Y (en) | 2009-06-18 | 2009-06-18 | Encrypted USB device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201329951U CN201429848Y (en) | 2009-06-18 | 2009-06-18 | Encrypted USB device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201429848Y true CN201429848Y (en) | 2010-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201329951U Expired - Fee Related CN201429848Y (en) | 2009-06-18 | 2009-06-18 | Encrypted USB device |
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| Country | Link |
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| CN (1) | CN201429848Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708070A (en) * | 2012-06-13 | 2012-10-03 | 徐江 | Physical encryption technology of mobile hard disk |
| CN111062063A (en) * | 2019-12-13 | 2020-04-24 | 济南大学 | System and method for controlling access of mobile storage equipment based on power supply strategy |
-
2009
- 2009-06-18 CN CN2009201329951U patent/CN201429848Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708070A (en) * | 2012-06-13 | 2012-10-03 | 徐江 | Physical encryption technology of mobile hard disk |
| CN111062063A (en) * | 2019-12-13 | 2020-04-24 | 济南大学 | System and method for controlling access of mobile storage equipment based on power supply strategy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20140618 |
|
| EXPY | Termination of patent right or utility model |