CN210166783U - Data storage device - Google Patents
Data storage device Download PDFInfo
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- CN210166783U CN210166783U CN201920868765.5U CN201920868765U CN210166783U CN 210166783 U CN210166783 U CN 210166783U CN 201920868765 U CN201920868765 U CN 201920868765U CN 210166783 U CN210166783 U CN 210166783U
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Abstract
The utility model relates to the technical field of data storage, in particular to a data storage device; a data storage device comprises a main control chip and a data interface, and is characterized in that a protective cover is arranged corresponding to the main control chip and the data interface, so that the electromagnetic waves generated by the main control chip and the data interface are shielded by the protective cover; therefore, the electromagnetic radiation generated by the work of the main control chip and the data interface is prevented from leaking, the external data acquisition by detecting the electromagnetic waves generated by the main control chip and the data interface is further avoided, and finally the data leakage is prevented.
Description
Technical Field
The utility model relates to a data storage technical field, concretely relates to data storage device.
Background
The data storage device generally includes a Solid State Disk (SSD), a mechanical hard disk, a hybrid hard disk, a mobile hard disk, and the like.
In the current internet era, data security is directly related to national security, business interests and personal privacy security.
In the prior art, the encryption technology of the data storage device generally encrypts data transmitted through a bus into ciphertext data and stores the ciphertext data into a storage area, or transmits the decrypted plaintext data to a processing system through the bus.
Even if the data encryption technology is adopted, large-scale data leakage events still occur, and the data encryption technology still has more security holes.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a prevent data storage device that data leaked.
In order to achieve the above technical problem, the present invention provides a data storage device, including a main control chip and a data interface, wherein a protection cover is disposed corresponding to the main control chip and the data interface, so that the protection cover shields electromagnetic waves generated by the main control chip and the data interface; the protective cover is made of an electromagnetic shielding material.
The utility model provides a pair of data storage device includes main control chip and data interface, corresponds main control chip and data interface and is provided with the safety cover to the electromagnetic wave that main control chip and data interface produced is shielded to the safety cover, thereby prevents that the electromagnetic radiation that main control chip and data interface work produced from leaking, and then has avoided the outside electromagnetic wave through listening main control chip and data interface production and has acquireed data, finally prevents that data from leaking.
The data interface is arranged on the circuit board, and the data interface is connected with the main control chip; the protective cover is connected to the circuit board, the protective cover and the circuit board enclose an electromagnetic shielding space, and the main control chip and the data interface are located in the electromagnetic shielding space.
Further, still include safety cover detection module, safety cover detection module set up in on the safety cover, safety cover detection module is used for detecting whether the safety cover is damaged.
The device further comprises a data protection module, wherein the data protection module is connected with the protection cover detection module; the data protection module is used for protecting data in the main control chip.
Further, the protective cover detection module comprises a detection circuit and a plurality of detection lines;
the detection lines are uniformly distributed on the protective cover, the detection lines are connected with the detection circuit, and the detection circuit detects whether the protective cover is damaged or not by detecting the on-off of the detection lines.
Further, the detection circuit comprises a power supply, an OR gate circuit and a plurality of resistors which are in one-to-one correspondence with the detection lines; each detection line comprises a first end and a second end, and the first end of each detection line is grounded; the second end of each detection line is electrically connected to the power supply through a corresponding resistor; the second end of each detection line is also electrically connected to the input end of the OR gate circuit, and the output end of the OR gate circuit is connected with the data protection module.
Furthermore, the data protection module is a data self-destruction module or a read-write locking module of the data storage device.
Furthermore, the data protection module is in signal connection with the main control chip.
Furthermore, the protective cover and the circuit board of the data storage device are respectively positioned at two opposite sides of the main control chip and the data interface.
Further, the protective cover is welded, adhered or screwed on the circuit board.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a top view of one embodiment of a data storage device provided by the present invention;
FIG. 2 is another top view of one embodiment of a data storage device provided by the present invention;
FIG. 3 is a cross-sectional view of the data storage device provided in FIG. 2;
FIG. 4 is a perspective view of the data storage device provided in FIG. 2;
fig. 5 is a circuit diagram of an embodiment of a data storage device provided by the present invention.
Wherein the correspondence between the reference numbers and the names of the components in fig. 1 to 5 is:
1. the device comprises a plaintext magnetic noise generating component 11, a main control chip 12, a data interface 2, a protective cover 3, a ciphertext magnetic noise generating component 4, a circuit board 5, a detection circuit 51, an OR gate circuit 52, a resistor 6, a detection line 7, a general input/output port 8, a first welding point 9, a second welding point VCC, a power supply, GND and ground.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
The inventor of the application finds that electromagnetic waves are generated during the operation of the electronic components, and the electromagnetic waves generated by the electronic components of the data storage device have a clear coupling relation with the data being processed. The electromagnetic wave generated by the electronic component processing the ciphertext data is the ciphertext data and cannot be effectively read even if the electronic component is analyzed and acquired, but the plaintext transmission area conforms to the bus standard, so the electromagnetic wave generated by the electronic component can be a channel for analyzing and acquiring useful data.
The embodiment of the application is based on the technical findings, the thinking direction of the original data security means is broken away, and the embodiment of the data storage device and the data protection method is provided for preventing data leakage by combining the hardware technical means, and the detailed examples are shown in the following contents of the specification.
An embodiment of the utility model provides a pair of data storage device, including plaintext data district and ciphertext data district. The plain data area includes at least one plain magnetic noise generating section 1.
The plaintext magnetic noise generation section 1 processes, stores, or transmits plaintext data (unencrypted data).
Referring to fig. 1 to 4, a protection cover 2 is disposed corresponding to the plaintext magnetic noise generating component 1, and the protection cover 2 shields electromagnetic waves generated by the plaintext magnetic noise generating component 1, so as to prevent electromagnetic radiation generated by the plaintext magnetic noise generating component 1 from leaking, thereby preventing data from being acquired by detecting the electromagnetic waves generated by the plaintext magnetic noise generating component 1 from the outside, and finally preventing the data from leaking.
The protective cover 2 is optionally made of an electromagnetic shielding material. Such as ferromagnetic materials, metallic good conductor materials, and surface-coated thin-film shielding materials. The ferromagnetic material may be pure iron, silicon steel, permalloy (iron-nickel alloy), and the like. The good metal conductor material can be steel, copper, aluminum and the like. The surface-coated film shielding material may be an electromagnetic shielding material in which a conductive film is attached to the surface of an insulator such as plastic.
It is understood by those skilled in the art that the electromagnetic shielding material may be other materials capable of performing electromagnetic shielding, and is not limited to the electromagnetic shielding material described above.
The data storage device also comprises a main control chip 11 and a data interface 12, wherein the main control chip 11 and the data interface 12 are both a plaintext magnetic noise generation component 1. The data interface 12 is used for connecting an external host end, and the external host end realizes data transmission with the main control chip 11 through the data interface 12.
In this embodiment, the data storage device is a solid state disk.
In other embodiments, the data storage device may be a mechanical hard disk or a hybrid hard disk, or the like.
It will be appreciated by those skilled in the art that the number of the plain magnetic noise generating sections 1 may be not limited to the above two sections.
The ciphertext data area includes at least one ciphertext magnetic noise generating component 3, and the ciphertext magnetic noise generating component 3 processes, stores, or transmits ciphertext data (encrypted data).
The data storage device further comprises a memory, and a memory bit ciphertext magnetic noise generating component 3.
In this embodiment, the memory is a flash memory.
In other embodiments, the ciphertext magnetic noise generating unit 3 may also be a Dynamic Random Access Memory (DRAM).
The data storage device further comprises a circuit board 4, and the plaintext magnetic noise generating component 1 is arranged on the circuit board 4. The protective cover 2 is connected to the circuit board 4, the protective cover 2 and the circuit board 4 enclose an electromagnetic shielding space, and the plaintext magnetic noise generating component 1 is located in the electromagnetic shielding space.
Specifically, the protective cover 2 and the circuit board 4 are respectively located on opposite sides of the plain magnetic noise generating part 1.
The protective cover 2 can be connected to the circuit board 4 by soldering, gluing or screwing.
In one embodiment, as illustrated in fig. 2 and 4, the protective cover 2 is selected to be T-shaped, and extends to two sides corresponding to the data interface 12, and the protective cover 2 may be disposed parallel to the circuit board 4 as a whole.
Specifically, the circuit board 4 includes a first circuit board 41 and a second circuit board 42. The data interface 12 is provided on the first circuit board 41. The second circuit board 42 is provided with a gold finger, the main control chip 11 is arranged on the second circuit board 42 and electrically connected with the gold finger, and the second circuit board 42 is electrically connected with the data interface 12 through the gold finger.
Those skilled in the art will appreciate that the data storage device may include an adapter board and a hard disk, the data interface 12 is disposed on the adapter board, and the adapter board may be a computer host Printed circuit board (pcb). The hard disk comprises a circuit board and a main control chip 11, wherein a golden finger is arranged on the circuit board, and the main control chip 11 is electrically connected with the golden finger. The hard disk is electrically connected to the data interface 12 via a gold finger. The hard disk can be a solid state disk, a mechanical hard disk or a hybrid hard disk.
The data storage device may also be other devices having writing and reading functions, and is not limited herein.
The data storage device further comprises a protection cover detection module and a data protection module, the protection cover detection module is arranged on the protection cover 2, and the protection cover detection module is used for detecting whether the protection cover 2 is damaged or not.
In the present embodiment, referring to fig. 5, the protection cover detection module includes a detection circuit 5 and a plurality of detection lines 6. A plurality of detection lines 6 are equally divided and arranged on the protection cover 2, the detection lines 6 are connected with the detection circuit 5, and the detection circuit 5 detects whether the protection cover 2 is damaged or not through the on-off detection of the detection lines 6, so that data leakage caused by the damage of the protection cover 2 is avoided.
The detection line 6 is made of a conductive material and is easily broken, so that when the protective cover 2 is broken, the detection line 6 is broken, thereby detecting the breakage of the protective cover 2.
In the present embodiment, a plurality of detection wires 6 are each provided on the inner surface of the protection cover 2. As will be appreciated by those skilled in the art, in other embodiments, the plurality of detection lines 6 may be disposed on the outer surface of the protection cover 2, or disposed in the interlayer of the protection cover 2, which is not limited herein.
The more the number of the detection lines 6 is, the more the detection lines are distributed at the corners of the protection cover 2, and the higher the accuracy of detecting the breakage of the protection cover 2 is.
The plurality of sensing lines 6 are insulated from each other, thereby preventing a short circuit between the plurality of sensing lines 6. The plurality of detection lines 6 may be arranged at intervals to be insulated, or may be insulated by arranging an insulating material.
In the present embodiment, the plurality of detection lines 6 are arranged in parallel at intervals in the same direction. In other embodiments, the plurality of inspection lines 6 may be arranged in a cross-web shape, and the more dense the web formed between the plurality of inspection lines 6 is, the higher the accuracy of detecting the breakage of the protection cover 2 is.
In another embodiment, electromagnetic wave detection devices are respectively disposed on the inner side and the outer side of the protective cover 2, and the values of the electromagnetic waves on the inner side and the outer side of the protective cover 2 are detected and analyzed and compared to determine whether the protective cover 2 is damaged. For example: if the comparison result of the electromagnetic wave values of the inner side and the outer side of the protective cover 2 is in a preset range, the protective cover 2 is not damaged; if the comparison result is not within the predetermined range, the protective cover 2 is damaged.
The data protection module is connected with the protection cover detection module and is used for protecting plaintext data in the plaintext magnetic noise generation component 1. Specifically, the data protection module protects the plaintext data in the plaintext magnetic noise generation component 1 according to the detection result of the protection cover detection module. If the protection cover detection module detects that the protection cover 2 is damaged, the data protection module starts to protect the plaintext data in the plaintext magnetic noise generation component 1.
The data protection module is a data self-destruction module or a read-write locking module of the data storage device.
The data protection module is in signal connection with the main control chip 11, so that the data protection module can protect data in the main control chip 11.
In a specific embodiment, the sensing circuit 5 includes a power supply VCC, an or gate circuit 51, and a plurality of resistors 52 in one-to-one correspondence with the sensing lines 6. Each sensing line 6 includes a first terminal and a second terminal, and the first terminal of each sensing line 6 is grounded to GND. The second end of each sensing line 6 is electrically connected to the power source VCC through a corresponding resistor 52. The resistor 52 is mainly used for voltage division to prevent short circuit between the power source VCC and the ground GND. The number of the resistors 52 between the second end of each sensing line 6 and the power source VCC may be plural, and the number of the resistors 52 between the second end of each sensing line 6 and the power source VCC is not limited as long as the voltage division function can be performed.
The second terminal of each sense line 6 is also electrically connected to an input of an OR-gate 51, the output of the OR-gate 51 being connected to the data protection module. Specifically, the or gate circuit 51 includes a plurality of input terminals for electrically connecting the second terminal of each sensing line 6 with a corresponding one of the input terminals, respectively.
When the sense lines 6 are turned on, the second terminal of each sense line 6 is at a low level, and the output terminal of the or gate circuit 51 outputs a low level. When the detection line 6 is disconnected, the second terminal of the disconnected detection line 6 is at a high level, and the output terminal of the or gate circuit 51 outputs a high level.
Whether or not the detection line 6 is broken is detected by a change in level of the output terminal of the or gate circuit 51, and it is determined whether or not the protective cover 2 is broken.
In this embodiment, the data protection module is a data self-destruction module. When the detection line 6 is disconnected, the output end of the or gate circuit 51 changes from low level to high level, and the data self-destruction module is triggered to destroy the plaintext data in the plaintext magnetic noise generation component 1, so as to prevent the data from leaking.
In this embodiment, the data self-destruction module is a program and is stored in the main control chip 11, that is, the output end of the or gate 51 is connected to the main control chip 11.
Further, the output terminal of the or gate 51 is connected to the main control chip 11 via a General-purpose input/output (GPIO) 7.
As illustrated in fig. 4, a plurality of first pads 8 corresponding to first ends of the plurality of inspection lines 6 and a plurality of second pads 9 corresponding to second ends of the plurality of inspection lines 6 are selectively disposed on the circuit board 4.
The first end of each sensing wire 6 is grounded through a corresponding first pad 8, and the second end of each sensing wire 6 is electrically connected to a resistor 52 through a corresponding second pad 9.
The utility model provides a pair of data storage device includes main control chip 11 and data interface 12, it is provided with safety cover 2 to correspond main control chip 11 and data interface 12 to the electromagnetic wave that main control chip 11 and data interface 12 produced is shielded to safety cover 2, thereby prevent that the electromagnetic radiation that main control chip 11 and data interface 12 work produced from leaking, and then avoided the outside electromagnetic wave through surveying main control chip 11 and data interface 12 production and acquireed data, finally prevent that data from leaking.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A data storage device comprises a main control chip and a data interface, and is characterized in that a protective cover is arranged corresponding to the main control chip and the data interface, so that the electromagnetic waves generated by the main control chip and the data interface are shielded by the protective cover; the protective cover is made of an electromagnetic shielding material.
2. The data storage device of claim 1, further comprising a circuit board, wherein the main control chip and the data interface are both disposed on the circuit board; the protective cover is connected to the circuit board, the protective cover and the circuit board enclose an electromagnetic shielding space, and the main control chip and the data interface are located in the electromagnetic shielding space.
3. The data storage device of claim 1, further comprising a protective cover detection module disposed on the protective cover, the protective cover detection module configured to detect whether the protective cover is damaged.
4. The data storage device of claim 3, further comprising a data protection module coupled to the protective cover detection module; the data protection module is used for protecting data in the main control chip.
5. The data storage device of claim 4, wherein the boot detection module comprises a detection circuit and a plurality of detection lines;
the detection lines are uniformly distributed on the protective cover, the detection lines are connected with the detection circuit, and the detection circuit detects whether the protective cover is damaged or not by detecting the on-off of the detection lines.
6. The data storage device of claim 5, wherein the sensing circuit comprises a power supply, an OR gate circuit, and a plurality of resistors in one-to-one correspondence with the sensing lines; each detection line comprises a first end and a second end, and the first end of each detection line is grounded; the second end of each detection line is electrically connected to the power supply through a corresponding resistor; the second end of each detection line is also electrically connected to the input end of the OR gate circuit, and the output end of the OR gate circuit is connected with the data protection module.
7. The data storage device of claim 6, wherein the data protection module is a data self-destruction module or a read-write locking module of the data storage device.
8. The data storage device of claim 4, wherein the data protection module is in signal connection with the main control chip.
9. The data storage device of any of claims 1 to 8, wherein the protective cover and the circuit board of the data storage device are located on opposite sides of the main control chip and the data interface, respectively.
10. The data storage device of claim 2, wherein the protective cover is soldered, bonded or screwed to the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920868765.5U CN210166783U (en) | 2019-06-06 | 2019-06-06 | Data storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920868765.5U CN210166783U (en) | 2019-06-06 | 2019-06-06 | Data storage device |
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| CN210166783U true CN210166783U (en) | 2020-03-20 |
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| CN201920868765.5U Active CN210166783U (en) | 2019-06-06 | 2019-06-06 | Data storage device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110287738A (en) * | 2019-06-06 | 2019-09-27 | 深圳市金泰克半导体有限公司 | Data storage device and its data guard method |
| CN110287738B (en) * | 2019-06-06 | 2024-05-17 | 深圳市金泰克半导体有限公司 | Data storage device and data protection method thereof |
-
2019
- 2019-06-06 CN CN201920868765.5U patent/CN210166783U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110287738A (en) * | 2019-06-06 | 2019-09-27 | 深圳市金泰克半导体有限公司 | Data storage device and its data guard method |
| CN110287738B (en) * | 2019-06-06 | 2024-05-17 | 深圳市金泰克半导体有限公司 | Data storage device and data protection method thereof |
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