Multi-mode USBKEY equipment

Abstract

The utility model relates to multi-mode USBKEY equipment, belongs to the technical field of safety certification, and solves the problems that the certification safety of the conventional USBKEY is not high and the conventional USBKEY cannot be used in multiple modes. Comprising a shell, a mode button, a display screen, an interface assembly, a fingerprint assembly, and a security chip, a storage chip, a positioning chip and a time calibration chip which are arranged in the shell, the security chip is connected with the positioning chip, the time calibration chip and the fingerprint assembly through UART interfaces. The security chip is respectively connected with the display screen and the storage chip through SPI interfaces, is connected with the mode button through a GPIO interface, and is connected with the interface assembly through a pin; the display screen and the mode button are arranged on the upper surface of the shell; the interface assembly is arranged at the top end or the bottom end of the shell. The safety of the USBKEY equipment is improved, and the mode diversity is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of security authentication, and in particular to a multi-mode USBKEY device. Background Art

[0002] A USBKEY, also known as a smart card USB token, security token or authentication token, is a small portable device used to provide strong authentication. It is usually used in online transactions, network logins, electronic signatures and other occasions that require a high level of security.

[0003] Currently, if a legitimate USBKEY holder negligently leaks the USBKEY password to a third party, as long as the third party holds the USBKEY, it is possible to impersonate the legitimate holder to perform authentication operations anywhere and at any time, resulting in serious consequences and posing a security risk to the use of the USBKEY.

[0004] In addition, existing USBKEYs only support authentication operations and lack usage methods in multiple modes, resulting in limited applicable scenarios. Summary of the Utility Model

[0005] In view of the above analysis, the utility model aims to provide a multi-dimensional authentication USBKEY device to solve the problems of low authentication security and lack of multi-mode usage of existing USBKEYs.

[0006] The purpose of the utility model is mainly achieved through the following technical solutions:

[0007] A multi-mode USBKEY device includes: a housing, a mode button, a display screen, an interface component, a fingerprint component, and a security chip, a storage chip, a positioning chip and a time calibration chip arranged in the housing.

[0008] The security chip is respectively connected to the positioning chip, the time calibration chip and the fingerprint component through a UART interface; the security chip is respectively connected to the display screen and the storage chip through an SPI interface, connected to the mode button through a GPIO interface, and connected to the interface component through a pin; the display screen and the mode button are both arranged on the upper surface of the housing; the interface component is arranged at the top or bottom of the housing.

[0009] Further, the security chip, the storage chip, the positioning chip and the time calibration chip are all arranged on a PCB board in the housing; the USBKEY device further includes a power supply component, and the power supply component is electrically connected to the mode button, the security chip, the positioning chip, the time calibration chip, the fingerprint component and the interface component.

[0010] Further, there are at least two mode buttons for switching between the USB flash drive mode and the USBKEY mode.

[0011] Further, the USBKEY device further includes the same number of LED indicators as the mode buttons. Each LED indicator corresponds to a mode button respectively and is arranged on the left or right side of the mode button; the LED indicator is connected to the security chip through a GPIO interface and is electrically connected to the power supply component.

[0012] Further, the fingerprint component includes a capacitive fingerprint sensor and a fingerprint recognition chip; the fingerprint recognition chip is connected to the capacitive fingerprint sensor through a UART interface; the capacitive fingerprint sensor is arranged on the left or right side of the housing; the fingerprint recognition chip is also arranged on the PCB board inside the housing.

[0013] Further, the USBKEY device further includes a pressure sensor; the pressure sensor is connected to the power supply component and the security chip and is arranged below the capacitive fingerprint sensor in the fingerprint component.

[0014] Further, the USBKEY device further includes a linear vibration motor; the linear vibration motor is connected to the power supply component and the security chip.

[0015] Further, the interface component includes at least one of a USB interface, a Micro-USB interface, a Mini-USB interface, and a TYPE-C interface.

[0016] Further, the power supply component includes a battery component and a charging circuit; the battery component is a rechargeable battery component; the charging circuit is electrically connected to the security chip and the battery component at the same time.

[0017] Further, the storage chip is a NAND Flash and is divided into an encrypted area and a normal area.

[0018] Compared with the prior art, the utility model performs multi-dimensional identity authentication through the fingerprint component, the positioning chip, and the time calibration chip, improving data security. Through the partition setting of the mode button and the storage chip, the functions of identity authentication as a USBKEY and encrypted storage and normal storage as a USB flash drive are provided at the same time, expanding the usage scenarios of the device.

[0019] In the utility model, the above technical solutions can also be combined with each other to realize more preferred combination schemes. Other features and advantages of the utility model will be described in the following content. Moreover, some advantages can be made obvious from the description or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the content specifically pointed out in the text and the drawings. Description of the Drawings

[0020] The accompanying drawings are only for the purpose of showing specific embodiments and are not considered as limitations to the present utility model. Throughout the drawings, the same reference signs denote the same components.

[0021] Figure 1 It is a structural block diagram of a multi-mode USBKEY device in an embodiment of the present utility model;

[0022] Figure 2 It is an external structure diagram of a multi-mode USBKEY device in an embodiment of the present utility model;

[0023] Reference signs:

[0024] 1 - housing; 2 - display screen; 3 - capacitive fingerprint sensor in the fingerprint component; 4 - interface component; 5 - first mode button; 6 - first LED indicator; 7 - second mode button; 8 - second LED indicator. Specific embodiments

[0025] The following will specifically describe the preferred embodiments of the present utility model in conjunction with the accompanying drawings, where the accompanying drawings form a part of this application and are used together with the embodiments of the present utility model to explain the principles of the present utility model, rather than to limit the scope of the present utility model.

[0026] A specific embodiment of the present utility model discloses a multi-mode USBKEY device, as Figure 1 shown, the multi-mode USBKEY device includes: a housing, mode buttons, a display screen, an interface component, a fingerprint component, and a security chip, a storage chip, a positioning chip, and a time calibration chip disposed in the housing;

[0027] The security chip is respectively connected to the positioning chip, the time calibration chip, and the fingerprint component through a UART interface; the security chip is respectively connected to the display screen and the storage chip through an SPI interface, connected to the mode buttons through a GPIO interface, and connected to the interface component through pins; the display screen and the mode buttons are both disposed on the upper surface of the housing; the interface component is disposed at the top or bottom of the housing.

[0028] During implementation, the security chip, the storage chip, the positioning chip, and the time calibration chip are all disposed on the PCB board in the housing. To enable the USBKEY to be used even when not connected to a computer, the USBKEY device in this embodiment further includes a power supply component for supplying power to the device. The power supply component is electrically connected to the mode buttons, the security chip, the positioning chip, the time calibration chip, the fingerprint component, and the interface component.

[0029] Specifically, the power supply component includes a battery component and a charging circuit; the battery component is a rechargeable battery component, such as a micro lithium-ion battery; the charging circuit is electrically connected to both the security chip and the battery component; an external power supply is connected to the charging circuit through the interface component to charge the battery component.

[0030] It should be noted that the security chip, as the main control chip of the USBKEY, adopts an intelligent card chip or an encryption chip. The memory of the security chip includes a read-only area and a read-write area. In the read-only area, there are stored the server root certificate (only including the public key) for identity authentication, the personal signature certificate and the private key, as well as the fingerprint information input through the fingerprint component; these information are stored when the USBKEY is issued and cannot be exported or modified, ensuring that only the current user has the permission to perform a series of operations after identity authentication, and avoiding the server root certificate being modified again during the user's use, resulting in the server being unable to correctly decrypt using the corresponding root certificate's private key.

[0031] In the read-write area, there are stored the signature authorization information configured by the user, including the area range and time period allowed for signature.

[0032] During implementation, the positioning chip is used to obtain the longitude and latitude of the current location of the USBKEY. Preferably, a positioning chip integrating GPS and Beidou is selected. The time calibration chip is used to obtain the current time, accurate to milliseconds, and an RTC clock chip is adopted. The positioning chip and the time calibration chip are used to achieve multi-dimensional information authentication in addition to fingerprint recognition, improving the security of the USBKEY device.

[0033] It should be noted that the fingerprint component in this embodiment includes a capacitive fingerprint sensor and a fingerprint recognition chip; the fingerprint recognition chip is connected to the capacitive fingerprint sensor through a UART interface; the capacitive fingerprint sensor is arranged on the left or right side of the housing. The capacitive fingerprint sensor has a fast recognition speed, can capture the subtle features of the fingerprint, and the recognition is more accurate. Moreover, it performs live detection, increasing the security and preventing forged fingerprints. The fingerprint recognition chip is also arranged on the PCB board inside the housing.

[0034] In order to enhance the device's ability to protect user information, even though the USBKEY device includes a power supply component, it cannot always be in the on state. Therefore, the USBKEY device also includes a pressure sensor; the pressure sensor is connected to both the power supply component and the security chip, and is arranged below the capacitive fingerprint sensor. By long pressing the capacitive fingerprint sensor, the pressure magnitude is recognized to achieve the power on / off function.

[0035] Preferably, the USBKEY device also includes a linear vibration motor. The linear vibration motor is connected to both the power supply component and the security chip, and is used to provide tactile feedback, such as giving a vibration prompt to the user when the identity authentication is successful.

[0036] Considering that the USBKEY already has the ability to encrypt and decrypt data, and users who use the USBKEY often also have a need for secure mobile storage. Therefore, for the convenience of use and improvement of functions, and to make full use of the same hardware device, in the present utility model, the mode button is used to provide identity authentication as a USBKEY, as well as the functions of encrypted storage and normal storage as a USB flash drive at the same time.

[0037] Specifically, there are at least two mode buttons in this embodiment, which are used to switch between the USB flash drive mode and the USBKEY mode. In order to intuitively display the operation status of the device in each mode, the USBKEY device also includes the same number of LED indicators as the mode buttons. Each LED indicator corresponds to a mode button and is arranged on the left or right side of the mode button. The LED indicator is connected to the security chip through the GPIO interface and is electrically connected to the power supply component.

[0038] During implementation, when the mode button corresponding to the USB flash drive mode is pressed, the LED indicator shows the initial state, such as yellow; after fingerprint verification, it shows the normal use state, such as green; when an abnormality occurs or the verification fails during use, it shows the abnormal state, such as red. At this time, the LED indicator corresponding to the USBKEY mode button is in the off state.

[0039] It should be noted that the storage chip in this embodiment is NAND Flash, which is divided into an encrypted area and a normal area, and is used to store the data in the USB flash drive mode into the corresponding area according to the user's selection on the display screen.

[0040] The display screen in this embodiment is a liquid crystal touch screen. After power-on, it displays the location and time information of the device, as well as the storage space of the storage chip; in the USB flash drive mode, it displays the file list in the normal area; in the USBKEY mode, it displays the interaction information of the user during the signature process, providing a visual user confirmation for secure operations. At the same time, the touch screen can also implement functions such as page turning, confirmation, and cancellation. Preferably, it realizes multi-page display of screen information by sliding.

[0041] The interface component in this embodiment includes at least one of a USB interface, a Micro-USB interface, a Mini-USB interface, and a TYPE-C interface. Users can connect the USBKEY device in multiple ways, making it more flexible to use. The interface component is connected to both the security chip and the power supply component at the same time, serving as an interface for communicating with external devices and an interface for charging the power supply component.

[0042] It should be noted that the lower surface of the housing of the USBKEY device is provided with anti-slip textures, such as wavy or mesh textures, to increase friction and improve the stability when holding. Preferably, a foldable bracket is provided to facilitate viewing and operating the display screen when the user uses it.

[0043] Exemplarily, the external structure of a multi-mode USBKEY device is as Figure 2 shown. A housing 1 is provided. A capacitive fingerprint sensor 3 in the fingerprint component is provided on the right side of the housing 1. A display screen 2 is provided above the upper surface of the housing 1. A first mode button 5 and a second mode button 7 are provided below the display screen 2. The first LED indicator 6 corresponding to the first mode button 5 is on the left side of the first mode button 5; the second LED indicator 8 corresponding to the second mode button 7 is on the left side of the second mode button 7; an interface component 4 is provided at the bottom end of the housing 1.

[0044] Those skilled in the art can understand that in the above embodiments, the security chip implements multiple working modes according to the selected mode button, and the program involved in storing data in the encrypted area or the normal area according to the user's selection is a common method in the prior art. The present invention does not involve any improvement in software. The present invention only needs to connect the chips and components with corresponding functions through the connection relationships given in the embodiments of the present invention, and does not involve any improvement in program software. As for the connection methods between the respective hardware devices with corresponding functions, those skilled in the art can all implement them using the prior art, and will not be described in detail here.

[0045] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A multi-mode USBKEY device, characterized in that: The USBKEY device includes: a housing, a mode button, a display screen, an interface component, a fingerprint component, and a security chip, a storage chip, a positioning chip and a time calibration chip arranged in the housing; The security chip is connected to the positioning chip, the time calibration chip and the fingerprint component respectively through the UART interface; the security chip is connected to the display screen and the storage chip respectively through the SPI interface, connected to the mode button through the GPIO interface, and connected to the interface component through the pin; the display screen and the mode button are both arranged on the upper surface of the shell; the interface component is arranged at the top or bottom of the shell.

2. The multi-mode USBKEY device according to claim 1, characterized in that: The security chip, storage chip, positioning chip and time calibration chip are all arranged on a PCB board inside the shell; the USBKEY device also includes a power supply component, which is electrically connected to the mode button, security chip, positioning chip, time calibration chip, fingerprint component and interface component.

3. The multi-mode USBKEY device according to claim 2, characterized in that: There are at least two mode buttons, which are used to switch between USB disk mode and USBKEY mode.

4. The multi-mode USBKEY device according to claim 3, characterized in that: The USBKEY device also includes the same number of LED indicator lights as the mode buttons, each of which corresponds to one of the mode buttons and is arranged on the left or right side of the mode button; the LED indicator lights are connected to the security chip via the GPIO interface and are electrically connected to the power supply assembly.

5. The multi-mode USBKEY device according to claim 2, characterized in that: The fingerprint component includes a capacitive fingerprint sensor and a fingerprint recognition chip; the fingerprint recognition chip is connected to the capacitive fingerprint sensor through a UART interface; the capacitive fingerprint sensor is arranged on the left or right side of the shell; the fingerprint recognition chip is also arranged on a PCB board inside the shell.

6. The multi-mode USBKEY device according to claim 5, characterized in that: The USBKEY device also includes a pressure sensor; the pressure sensor is connected to the power supply component and the security chip, and is arranged below the capacitive fingerprint sensor in the fingerprint component.

7. The multi-mode USBKEY device according to claim 5, characterized in that: The USBKEY device also includes a linear vibration motor; the linear vibration motor is connected to a power supply component and a security chip.

8. The multi-mode USBKEY device according to claim 1, characterized in that: The interface component includes at least one of a USB interface, a Micro-USB interface, a Mini-USB interface and a TYPE-C interface.

9. The multi-mode USBKEY device according to claim 2, characterized in that: The power supply assembly includes a battery assembly and a charging circuit; the battery assembly is a rechargeable battery assembly; and the charging circuit is electrically connected to the safety chip and the battery assembly at the same time.

10. The multi-mode USBKEY device according to claim 1, characterized in that: The memory chip is NAND Flash, which is divided into an encryption area and a common area.

Images