USB flash disk set capable of preventing leakage of confidential information

Abstract

The utility model relates to the technical field of USB flash disks, in particular to a USB flash disk set capable of preventing leakage of confidential information, which comprises a safe USB flash disk and a safe mouse, the safe USB flash disk comprises a USB flash disk USB interface, a PCB (printed circuit board) and a USB flash disk shell, the PCB is provided with a USB flash disk power supply circuit, the USB flash disk power supply circuit is connected with a reed switch in series, and the reed switch is positioned in the USB flash disk shell; the safety mouse comprises a mouse power supply circuit, a mouse USB interface and a mouse shell, and an electromagnet is connected to the mouse power supply circuit in series and located in the mouse shell. According to the utility model, the safe USB flash disk can be protected, and confidential information in the safe USB flash disk is prevented from being leaked; common people cannot find the working principle of the safe USB flash disk, so that the safe USB flash disk is good in confidentiality effect.

Description

Technical Field

[0001] The utility model relates to the technical field of U disks, in particular to a U disk set for preventing confidential information from leaking. Background Art

[0002] How to better protect USB flash drives containing confidential information and prevent confidential information from being leaked is a common problem in the field of information security.

[0003] Application No. 201320658432.2 discloses a USB flash drive with a write protection function, comprising a USB flash drive housing, a USB flash drive PCB board, a USB flash drive main circuit, a USB flash drive cap, a magnet, a USB interface, an LED control circuit, and a write protection control circuit; wherein the USB flash drive main circuit and the LED control circuit are mounted on the USB flash drive PCB board and placed inside the USB flash drive housing, the magnet is located at the bottom of the USB flash drive cap, one end of the USB interface is welded on the USB flash drive PCB board, and the other end is exposed outside the USB flash drive housing, and the write protection circuit is located at the edge of the USB flash drive PCB board near the tail of the USB flash drive; this USB flash drive can be write-protected, which is equivalent to read-only, that is, the content can be modified but not saved, and is specially designed for USB flash drive anti-virus, but does not have the function of preventing confidential information from being leaked. Utility Model Content

[0004] The main purpose of the utility model is to provide a U disk set for preventing leakage of confidential information, so as to solve the problem of how to prevent leakage of confidential information in the U disk in the above-mentioned prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a U disk set for preventing leakage of confidential information, including a secure U disk and a secure mouse. The secure U disk includes a U disk USB interface, a PCB circuit board and a U disk shell. The PCB circuit board is provided with a U disk power supply circuit, and a reed switch is connected in series to the U disk power supply circuit, and the reed switch is located in the U disk shell; the secure mouse includes a mouse power supply circuit, a mouse USB interface and a mouse shell. An electromagnet is connected in series to the mouse power supply circuit, and the electromagnet is located in the mouse shell.

[0006] Furthermore, a positive power supply contact and a negative power supply contact are provided on the USB interface of the U disk. One of the positive power supply contact and the negative power supply contact is directly connected to the U disk power supply circuit, and the other is connected to the U disk power supply circuit through a reed switch.

[0007] Furthermore, the secure USB flash drive includes a main control chip and a flash memory chip, which are located in the USB flash drive housing and are electrically connected to the PCB circuit board.

[0008] Furthermore, the mouse USB interface is electrically connected to the mouse power supply circuit.

[0009] The principle of preventing leakage of the USB flash drive set of the utility model is:

[0010] The secure USB flash drive stores confidential information. A reed switch is connected in series to the power supply circuit of the USB flash drive, which is equivalent to a normally open switch. The reed switch will only close when it is affected by the magnetic field generated by a magnet, so that the power supply circuit of the USB flash drive is connected. Only when the power supply circuit of the USB flash drive is connected can the secure USB flash drive be used normally. Even if a non-secure USB flash drive owner obtains the secure USB flash drive and inserts it into a computer, the secure USB flash drive cannot be used normally.

[0011] When the owner of the secure USB flash drive uses the secure USB flash drive, he / she inserts the secure USB flash drive and the secure mouse into the computer at the same time for use; there is an electromagnet in the secure mouse. After the secure mouse is inserted into the computer, the electromagnet is energized to generate a magnetic field. Under the action of the magnetic field, the power supply line of the USB flash drive is connected, and the secure USB flash drive can be used normally; when using it, it should be noted that the distance between the secure mouse and the secure USB flash drive should not be too far, so that the reed switch can sense the magnetic field generated by the electromagnet;

[0012] Since the reed switch and electromagnet are set inside the shell of the secure USB flash drive and the secure mouse, the secure USB flash drive and the secure mouse look no different from ordinary USB flash drives and mice. Even if ordinary people see the owner of the secure USB flash drive using the secure USB flash drive, they will not know the principle of confidential information protection.

[0013] The beneficial effects of the utility model are: the security U disk can be protected to prevent the confidential information in the security U disk from being leaked; ordinary people cannot discover the working principle of the security U disk, and the security U disk has a better confidentiality effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0015] Figure 1 This is a schematic diagram of the structure of a secure USB flash drive in an embodiment;

[0016] Figure 2 Schematic diagram of the structure of the safety mouse in the embodiment;

[0017] In the figure: 1. Security USB flash drive; 101. USB interface of USB flash drive; 101a. Positive power supply contact; 101b. Negative power supply contact; 102. PCB circuit board; 103. Power supply circuit of USB flash drive; 104. USB flash drive shell; 105. Reed switch; 106. Main control chip; 107. Flash memory chip; 2. Security mouse; 201. Power supply circuit of mouse; 202. USB interface of mouse; 203. Mouse shell; 204. Electromagnet. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] like Figure 1 and Figure 2 As shown, according to an embodiment of the utility model, a U disk set for preventing leakage of confidential information is provided, including a secure U disk 1 and a secure mouse 2. The secure U disk 1 includes a U disk USB interface 101, a PCB circuit board 102 and a U disk shell 104, a reed switch 105, a main control chip 106 and a flash memory chip 107; the U disk USB interface 101 is located at the end of the U disk shell 104, and the PCB circuit board 102, the reed switch 105, the main control chip 106 and the flash memory chip 107 are located inside the U disk shell 104.

[0020] A USB power supply circuit 103 is provided on the PCB circuit board 102; the main control chip 106 and the flash memory chip 107 are electrically connected to the PCB circuit board 102; a positive power supply contact 101a and a negative power supply contact 101b are provided on the USB interface 101 of the USB disk, one of the positive power supply contact 101a and the negative power supply contact 101b is directly connected to the USB power supply circuit 103, and the other is connected to the USB power supply circuit 103 through the reed switch 105.

[0021] The security mouse 2 includes a mouse power supply circuit 201, a mouse USB interface 202 and a mouse shell 203; the mouse power supply circuit 201 and the mouse USB interface 202 are both located in the mouse shell 203; the mouse USB interface 202 is electrically connected to the mouse power supply circuit 201; an electromagnet 204 is connected in series to the mouse power supply circuit 201, and the electromagnet 204 is located in the mouse shell 203.

[0022] The principle of preventing confidentiality of the USB flash drive set of the utility model is:

[0023] The secure USB flash drive 1 stores confidential information; a reed switch 105 is connected in series to the USB flash drive power supply circuit 103, and the reed switch 105 is equivalent to a normally open switch; the reed switch 105 will only be closed when it is affected by the magnetic field generated by the magnet, so that the USB flash drive power supply circuit 103 is connected; only when the USB flash drive power supply circuit 103 is connected, the secure USB flash drive 1 can be used normally; even if a non-secure USB flash drive owner obtains the secure USB flash drive 1 and inserts the secure USB flash drive 1 into a computer, the secure USB flash drive 1 cannot be used normally;

[0024] When the owner of the secure USB flash drive uses the secure USB flash drive 1, the secure USB flash drive 1 and the secure mouse 2 are simultaneously inserted into the computer for use; the secure mouse 2 is provided with an electromagnet 204. After the secure mouse 2 is inserted into the computer, the electromagnet 204 is energized to generate a magnetic field. Under the action of the magnetic field, the USB flash drive power supply line 103 is connected, and the secure USB flash drive 1 can be used normally; when using, it should be noted that the distance between the secure mouse 2 and the secure USB flash drive 1 should not be too far, so that the reed switch 105 can sense the magnetic field generated by the electromagnet 204;

[0025] Since the reed switch 105 and the electromagnet 204 are arranged inside the housing of the secure USB flash drive 1 and the secure mouse 2, the secure USB flash drive 1 and the secure mouse 2 look no different from ordinary USB flash drives and mice. Even if ordinary people see the owner of the secure USB flash drive using the secure USB flash drive 1, they will not know the principle of confidential information protection therein.

[0026] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A USB flash drive set for preventing confidential information leakage, characterized in that: The invention comprises a safety USB flash drive (1) and a safety mouse (2), wherein the safety USB flash drive (1) comprises a USB flash drive USB interface (101), a PCB circuit board (102) and a USB flash drive housing (104), wherein a USB flash drive power supply circuit (103) is provided on the PCB circuit board (102), a reed switch (105) is connected in series to the USB flash drive power supply circuit (103), and the reed switch (105) is located in the USB flash drive housing (104); and the safety mouse (2) comprises a mouse power supply circuit (201), a mouse USB interface (202) and a mouse housing (203), wherein an electromagnet (204) is connected in series to the mouse power supply circuit (201), and the electromagnet (204) is located in the mouse housing (203).

2. The USB flash drive set for preventing confidential information leakage as claimed in claim 1, characterized in that: The USB interface (101) of the U disk is provided with a positive power supply contact (101a) and a negative power supply contact (101b); one of the positive power supply contact (101a) and the negative power supply contact (101b) is directly connected to the U disk power supply circuit (103), and the other is connected to the U disk power supply circuit (103) via a reed switch (105).

3. The USB flash drive set for preventing leakage of confidential information as claimed in claim 1, characterized in that: The secure USB flash drive (1) comprises a main control chip (106) and a flash memory chip (107); the main control chip (106) and the flash memory chip (107) are located in a USB flash drive housing (104) and are electrically connected to a PCB circuit board (102).

4. The USB flash drive set for preventing confidential information leakage according to claim 1, characterized in that: The mouse USB interface (202) is electrically connected to the mouse power supply circuit (201).

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