CN211403428U - Solid state disk anti-password system and solid state disk - Google Patents

Abstract

The utility model discloses a secret system and solid state hard prevent losing secret system of solid state hard, prevent losing secret system and include: the storage module is used for storing data; the remote destroying module is used for receiving a remote destroying instruction; the anti-plugging/disassembling module is used for generating a destroying trigger signal when the solid state disk is detected to be disassembled; the control module is respectively connected with the storage module, the remote destroying module and the anti-pulling plug/disassembly module and is used for executing a destroying program according to a remote destroying instruction or a destroying trigger signal so as to destroy data; and the power supply module is respectively connected with the storage module, the remote destroying module, the anti-pulling insertion/disassembly module, the control module and the computer power supply, and is used for receiving the electric energy provided by the computer power supply and supplying power to the storage module, the remote destroying module, the anti-pulling insertion/disassembly module and the control module. The anti-decryption system can enable the solid state disk to have an anti-disassembly function and a remote destruction function, and ensures the safety of data stored in the solid state disk.

Description

Solid state disk anti-password system and solid state disk

Technical Field

The utility model relates to a hard disk technical field especially relates to a solid state hard disk prevents secret system and a solid state hard disk.

Background

In the market, the solid state disk with the software encryption function has poor stability of encryption software, is easy to generate encryption damage drawings or conflict with a Windows operating system, and has poor compatibility. Moreover, the scenes of using the solid state disk are more and more complicated, and the data are sent out from files, on business trips, safety in printing, application system data to mobile office data and the like, so that the encryption function of software cannot be simply relied on. Particularly for business and confidential persons, the computer including the solid state disk may be lost during the outgoing process, so as to cause data loss, and further, a secret divulging event may be involved, which brings economic loss or causes an illegal event.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the utility model discloses a first aim at provides a secret system is prevented losing by solid state hard drives to guarantee the security of storage data, and have and prevent that function and long-range destruction function are destroyed to the dismantlement.

A second object of the present invention is to provide a solid state disk.

To achieve the above object, the present invention provides in a first aspect a system for preventing secret losing of a solid state disk, including: the storage module is used for storing data; the remote destroying module is used for receiving a remote destroying instruction; the anti-plugging/disassembling module is used for generating a destroying trigger signal when the solid state disk is detected to be disassembled; the control module is respectively connected with the storage module, the remote destroying module and the anti-plugging/disassembling module and is used for executing a destroying program according to the remote destroying instruction or the destroying trigger signal so as to destroy the data; the power module is respectively connected with the storage module, the remote destroying module, the anti-plugging/disassembling module, the control module and the computer power supply, and is used for receiving the electric energy provided by the computer power supply and supplying power to the storage module, the remote destroying module, the anti-plugging/disassembling module and the control module.

The utility model discloses a secret system is prevented losing by solid state hard drives through long-range destruction module and prevent pulling out the setting of inserting/disassembling the module, can make solid state hard drives have and prevent disassembling function and long-range destruction function, can guarantee the security of solid state hard drives stored data from this.

Additionally, the utility model discloses a secret system is prevented losing by solid state hard drives can also have following additional technical characterstic:

specifically, the storage module includes main control unit, SDRAM memory cell, FLASH memory cell and SATA interface, main control unit respectively with control module SDRAM memory cell, FLASH memory cell with SATA interface connection, main control unit is used for receiving the control command that control module sent, and pass through SATA interface according to the control command receives the data of treating the storage, and will data storage extremely SDRAM memory cell or FLASH memory cell, or, through SATA interface reads SDRAM memory cell or the data that FLASH memory cell stored.

Optionally, the storage module further comprises: the heat-sensitive element is used for detecting the temperature of the solid state disk; the main control unit is also connected with the thermosensitive element and used for carrying out corresponding control according to the temperature.

Specifically, the anti-unplugging/unplugging module comprises: one end of the photoresistor is connected with a preset power supply; one end of the first resistor is connected with the other end of the photoresistor and forms a first node, and the other end of the first resistor is grounded; the power supply positive end of the comparator is connected with the power supply module, the power supply negative end of the comparator is grounded, the positive input end of the comparator is used for inputting reference voltage, the negative input end of the comparator is connected with the first node, the output end of the comparator is connected with the control module, and the comparator is used for outputting the destruction trigger signal to the control module so that the control module executes the destruction program according to the destruction trigger signal.

Specifically, the power module includes a rechargeable battery and a power conversion unit, and the power conversion unit is respectively connected to the rechargeable battery, the computer power supply, the storage module, the remote destruction module, the anti-unplugging/unplugging module and the control module, and is configured to convert a voltage provided by the rechargeable battery or the computer power supply into a working voltage of the storage module, the remote destruction module, the anti-unplugging/unplugging module and the control module.

Wherein, the remote destroying module adopts a GM323 GSM module.

The main control unit adopts a JMF612 chip.

Wherein, the comparator adopts TLV3491 chip.

The power conversion unit adopts a synchronous voltage reduction switch power supply chip, wherein the working voltage of the main control unit comprises three types of 3.3V, 1.2V and 1.8V, the working voltage of the control module is 3.3V, and the working voltage of the remote destruction module is 3.8V.

In order to achieve the above object, the second aspect of the present invention provides a solid state disk, which includes the above-mentioned anti-disclosure system for solid state disk.

The utility model discloses a solid state hard drives adopts foretell secret system of preventing losing, through long-range destruction module and prevent pulling out the setting of inserting/disassembling the module, has and prevents tearing open function and long-range destruction function, can guarantee the security of stored data from this.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

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 block diagram of a solid state disk anti-decryption system according to an embodiment of the present invention;

FIG. 2 is a block diagram of an exemplary memory module of the present invention;

fig. 3 is a circuit topology diagram of an anti-unplugging plug/unplug module according to an example of the present invention;

fig. 4 is a block diagram of a solid state disk according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The solid state disk anti-decryption system and the solid state disk according to the embodiments of the present invention are described below with reference to the drawings.

Fig. 1 is a block diagram of a system for preventing secret loss of a solid state disk according to an embodiment of the present invention.

As shown in fig. 1, the system for preventing the solid state disk from being decrypted includes: a storage module 110, a remote destruction module 120, an anti-unplugging/unplugging module 130, a control module 140, and a power module 150.

Referring to fig. 1, the storage module 110 is used to store data; the remote destruction module 120 is configured to receive a remote destruction instruction; the anti-unplugging/disassembling module 130 is configured to generate a destruction trigger signal when detecting that the solid state disk is disassembled; the control module 140 is respectively connected to the storage module 110, the remote destruction module 120, and the anti-unplugging/disassembling module 130, and is configured to execute a destruction program according to a remote destruction instruction or a destruction trigger signal, so as to destroy data; the power module 150 is respectively connected to the storage module 110, the remote destruction module 120, the anti-unplugging plug/disassembly module 130, the control module 140 and the computer power supply, and is configured to receive the electric power provided by the computer power supply and supply power to the storage module 110, the remote destruction module 120, the anti-unplugging plug/disassembly module 130 and the control module 140.

In particular, in the data security aspect, the control module 140 is a decision maker of the security policy, which receives and analyzes external data as a security master, and then makes a decision as to what operation is performed on the data. The control module 140 may be connected to the anti-unplugging and plugging/disassembling module 130 through a common IO port, and a real-time clock is connected to the outside of the control module 140 to provide a clock signal to the control module 140, and a serial port is reserved for the control module 140 to perform data communication with the outside. The memory module 110 is connected through a normal IO, and data is provided to the memory module 110, so that the memory module 110 executes corresponding actions. Meanwhile, the control module 140 is connected to the remote destruction module 120 and can execute remote commands. As a key to the overall board design, the control module 140 also takes over the overall board power management.

Therefore, the utility model discloses a secret system is prevented losing by solid state hard drives through the long-range setting of destroying the module and preventing pulling out and inserting/disassembling the module, can make solid state hard drives have and prevent disassembling function and long-range destruction function, can guarantee the security of solid state hard drives stored data from this.

As an example, as shown in fig. 2, the storage module 110 includes a main control unit 111, an SDRAM storage unit 112, a FLASH storage unit 113, and a SATA interface 114 (such as a SATA ii interface), the main control unit 111 is respectively connected to the control module 140, the SDRAM storage unit 112, the FLASH storage unit 113, and the SATA interface 114, and the main control unit 111 is configured to receive a control instruction sent by the control module 140, receive data to be stored through the SATA interface 114 according to the control instruction, and store the data to the SDRAM storage unit 112 or the FLASH storage unit 113, or read data stored in the SDRAM storage unit 112 or the FLASH storage unit 113 through the SATA interface 114.

Specifically, the main control unit 111 may connect the control module 140 through the normal IO to receive data provided by the control module 140, and perform corresponding actions according to the data.

Alternatively, the SDRAM storage unit 112 may include one piece of SDRAM memory, and the FLASH storage unit 113 may include eight pieces of FLASH memory.

As an example, the storage module 110 further includes: and the thermosensitive element (such as a thermistor) is used for detecting the temperature of the solid state disk.

In this example, the main control unit 111 is also connected to a thermal element for performing corresponding control according to the temperature, for example, when the temperature of the solid state disk is requested on the computer, the current temperature of the solid state disk can be displayed on a corresponding window.

Specifically, the main control unit 111 may adopt a JMF612 chip as a main control chip, which is a single chip, and supports an external static DRAM, an SATA II storage interface, and a high-speed FLASH access, where the read/write speed is only limited by the read/write speed of FLASH, and supports SMART (Self-Monitoring Analysis and Reporting Technology) and dynamic power management, and each channel may support a FLASH of 16CE at most. In this embodiment, a piece of SDRAM and at most 8 FLASH memory chips can be externally attached to the main control chip, and a thermal sensitive element is designed to support the temperature monitoring of the hard disk.

As an example, the remote destruction module 120 may employ a GM323 GSM module.

Specifically, in order to prevent the data security of the stolen computer from being violated, the remote destruction module 120 is designed to destroy the data on the solid state disk by using a remote instruction. In this example, a GM323 GSM module is used, which supplies power through an external pin, and the power supply is directly connected to the power input end, so that after the computer is turned off or the solid state disk is unplugged, the GM323 GSM module may be powered on to start working and is connected to the SIM card slot through the external pin. The control pin is connected with the control module 140 through a triode, and the control module 140 can control the on/off and dormancy of the GM323 GSM module.

As an example, as shown in fig. 3, the anti-unplugging/disassembling module 130 includes: a photo resistor R0, a first resistor R1 and a comparator 131.

Referring to fig. 3, one end of the photo resistor R0 is connected to a preset power VCC; one end of the first resistor R1 is connected with the other end of the photoresistor R0 and forms a first node, and the other end of the first resistor R1 is grounded; the positive power supply terminal of the comparator 131 is connected to the power module 150, the negative power supply terminal of the comparator 131 is grounded, the positive input terminal of the comparator 131 is used for inputting the reference voltage Vref, the negative input terminal of the comparator 131 is connected to the first node, the output terminal of the comparator 131 is connected to the control module 140, and the comparator 11 is used for outputting the destruction trigger signal to the control module 140, so that the control module 140 executes the destruction program according to the destruction trigger signal.

The comparator 131 may adopt a TLV3491 chip, and the preset power VCC and the reference voltage Vref may be provided by the power module 150.

Specifically, the anti-unplugging/unplugging module 130 is designed to prevent a person from maliciously unplugging and plugging the solid state disk after the computer is stolen, and is used to protect data stored in the solid state disk. Referring to fig. 3, the anti-unplugging function is implemented by connecting an interrupt IO port of the control module 140 to a circuit for generating a rising edge, when the solid state disk is not unplugged, the pin of the control module 140 detects an interrupt, that is, immediately triggers the execution of the destruction program, so that the control module 140 can detect that the solid state disk is unplugged maliciously; the anti-disassembly function can be operated by detecting the light intensity through a photo resistor R0, normally, the inside of the solid state disk is in a dark state, but when the solid state disk is disassembled without any reason, the photo resistor R0 is irradiated by light, the resistance value is rapidly reduced, and a rising edge is generated to trigger the control module 140 to enter the destruction mode. Through the design of dual protection, even the people who steal the computer learn that the solid state hard disk of this computer has the anti-pulling function of inserting, also can't obtain the data that wants through dismantling the solid state hard disk, from this, the data security of protection solid state hard disk more omnidirectional.

As an example, the power module 150 includes a rechargeable battery and a power conversion unit, and the power conversion unit is respectively connected to the rechargeable battery, the computer power supply, the storage module 110, the remote destruction module 120, the anti-unplugging/unplugging module 130 and the control module 140, and is configured to convert the voltage provided by the rechargeable battery or the computer power supply into the operating voltage of the storage module 110, the remote destruction module 120, the anti-unplugging/unplugging module 130 and the control module 140.

The power conversion unit can adopt a synchronous step-down switching power supply chip, wherein the working voltage of the main control unit comprises three types of 3.3V, 1.2V and 1.8V, the working voltage of the control module is 3.3V, and the working voltage of the remote destruction module 120 is 3.8V.

Specifically, the power is the best key part of a circuit good or bad, and the good or bad of power has decided whether the circuit can carry out normal function the utility model discloses well considered the integrality problem of power design. The circuit is a multi-power system, the main control unit 111 needs three power inputs of 3.3V, 1.2V and 1.8V, the control module 140 needs 3.3V working voltage, the rechargeable battery can provide about 4V voltage, the remote destroying module 120 needs 3.8V voltage, the SATA power interface can provide 1.2V, 3.3V and 5V voltage, and the rechargeable battery needs to be charged. According to the power type of needs, the utility model discloses in design many sets of controllable synchronous step-down circuit and produced required voltage. The most important switching power supplies are 3.3V, 1.2V, 1.8V provided for the main control unit 111, 3.8V provided for the remote destruction module 120, and the charging and discharging circuit of the battery. The MPS synchronous buck switching power supply chip can be used in design, and the power supply switch can be controlled by connecting with the pins of the control module 140.

When the solid state disk is unplugged from the computer, the power module 150 immediately switches to battery mode and quickly powers up the control module 140 and then powers up the remote destruction module 120 waiting to receive instructions. At this point, the rest of the system, except the control module 140 and the remote destruction module 120, is in the power-off mode. However, when the solid state disk is disassembled or unplugged, the MCU will detect the interruption and rapidly provide 3.3V to the main control unit 111, so that the main control unit 111 executes the destruction program to destroy the data in the disk. And after a period of time, turn off power to the master unit 111 to continue waiting for further instructions.

Further, the present invention is directed to a low power consumption design, which is important for data security, and thus the current consumption and the chip standby current of various electronic components must be considered. Considering that after the computer is turned off, the solid state disk enters a power-down mode, and at this time, the rechargeable battery starts to supply power, the rechargeable battery first supplies power to the control module 140, so that when the control module 140 enters a normal operating mode, the control module 140 sends an instruction to start the remote destruction module 120 and power the remote destruction module 120, so that the remote destruction module 120 enters a standby mode, and the consumption of current is reduced. After the initialization is completed, the control module 140 starts to enter a sleep mode, enters a low power consumption state, further reduces power consumption, and wakes up the control module 140 only when an external interrupt signal is detected. Therefore, after the initialization operation is completed, the main current consumption of the circuit comes from the pull-up resistor, the standby current of the remote destruction module 120, and the sleep current of the control module 140. The standby current for the remote destruction module 120 and the sleep current for the control module 140 are substantially fixed values, so the current consumption of the pull-up resistor should be reduced by increasing the pull-up resistor if the overall current consumption is minimal.

In addition, the embodiment of the present invention includes a very large number of sensitive circuits. Firstly, the circuit is a multi-power circuit, secondly, the analog circuit and the digital circuit coexist, and the transmission of high-speed signals also puts a great deal of requirements on the layout and the wiring of PCB components.

Therefore, in the circuit layout, the analog-digital separation needs to be considered, and the analog part in the PCB is intensively arranged on one of the circuits, so that the analog signal can not generate great interference on the high-speed data signal of the main control unit 111. Because various voltages of the power supply part are obtained through voltage reduction and conversion, the voltage conversion chip can generate current consumption in the conversion process, and further generates heat, and in order to avoid overheating in local areas, when the voltage conversion chip is placed, enough space needs to be reserved between the chip and the chip to facilitate heat dissipation of the chip. Meanwhile, considering the high-speed signal and multi-power system of the board, the PCB in the present design may adopt 6 boards, which are a top layer, a ground layer, a first signal layer, a second signal layer, a power layer and a bottom layer, respectively. Because the power supply layer has multiple power supplies, each power supply is uniformly distributed as much as possible in the design, the situation of narrow width does not occur, the power supply distribution of the power supply layer is matched with the layout of the top layer as much as possible, and the power supply distribution is ensured to be relatively uniform. Meanwhile, the power supply layer is slightly retracted relative to the ground layer, the 3H principle is met, and the signal interference is reduced. The wiring direction of the two signal layers is consistent, the signal lines on different layers are arranged in an orthogonal mode, and the interference among different signals can be effectively reduced.

The communication between the SDRAM memory unit 112 and the main control unit 111 is a super-high speed communication mode, so the two are as close as possible in layout, and the routing between them strictly satisfies the 3W principle and the length of the equal signal line, and under the condition of insufficient space, the serpentine-line mode is adopted to ensure the equal length of the signal line clock line, so that the signal interference between the parallel lines is greatly reduced. For key signals and small signals, the signals are isolated as much as possible, and power noise and the like are prevented from being connected into the signals in series. And a proper decoupling capacitor is arranged at the power inlet, so that the stability of the chip power supply is ensured. In addition to the connection signal, the via hole is arranged on the via hole when necessary, so that the power supply loop, especially a power supply filter loop, is minimized. Copper matched with the size of the remote destroying module 120 is laid on the connecting part of the remote destroying module 120, so that the interference of the radio frequency signal of the remote destroying module 120 on the digital signal in the circuit is effectively prevented.

To sum up, the utility model discloses solid state hard disk anti-secret system possesses the integrated level height, miniaturized advantage, has integrateed the encrypted function of hardware, and has the function of preventing demolising and long-range destruction function, and it is good to encrypt intensity height, encryption nature, and the encryption mode is nimble, the low power dissipation.

Further, the utility model also provides a solid state hard drives.

Fig. 4 is a block diagram of a solid state disk according to an embodiment of the present invention.

As shown in fig. 4, in this embodiment, the solid state disk includes the solid state disk anti-decryption system of the above embodiment.

The utility model discloses solid state hard drives adopts foretell secret system of preventing losing, through long-range destruction module and prevent pulling out the setting of inserting/disassembling the module, has and prevents tearing open the function and the long-range function of destroying, can guarantee the security of the data of storing from this.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. The utility model provides a solid state hard drives prevents losing secret system which characterized in that includes:

the storage module is used for storing data;

the remote destroying module is used for receiving a remote destroying instruction;

the anti-plugging/disassembling module is used for generating a destroying trigger signal when the solid state disk is detected to be disassembled;

the control module is respectively connected with the storage module, the remote destroying module and the anti-plugging/disassembling module and is used for executing a destroying program according to the remote destroying instruction or the destroying trigger signal so as to destroy the data;

the power module is respectively connected with the storage module, the remote destroying module, the anti-plugging/disassembling module, the control module and the computer power supply, and is used for receiving the electric energy provided by the computer power supply and supplying power to the storage module, the remote destroying module, the anti-plugging/disassembling module and the control module.

2. The system of claim 1, wherein the storage module comprises a main control unit, an SDRAM storage unit, a FLASH storage unit, and an SATA interface, the main control unit is connected to the control module, the SDRAM storage unit, the FLASH storage unit, and the SATA interface, and the main control unit is configured to receive a control instruction sent by the control module, receive data to be stored through the SATA interface according to the control instruction, and store the data to the SDRAM storage unit or the FLASH storage unit, or read data stored in the SDRAM storage unit or the FLASH storage unit through the SATA interface.

3. The system of claim 2, wherein the storage module further comprises:

the heat-sensitive element is used for detecting the temperature of the solid state disk;

the main control unit is also connected with the thermosensitive element and used for carrying out corresponding control according to the temperature.

4. The system of claim 1, wherein the anti-tamper/disassemblable module comprises:

one end of the photoresistor is connected with a preset power supply;

one end of the first resistor is connected with the other end of the photoresistor and forms a first node, and the other end of the first resistor is grounded;

the power supply positive end of the comparator is connected with the power supply module, the power supply negative end of the comparator is grounded, the positive input end of the comparator is used for inputting reference voltage, the negative input end of the comparator is connected with the first node, the output end of the comparator is connected with the control module, and the comparator is used for outputting the destruction trigger signal to the control module so that the control module executes the destruction program according to the destruction trigger signal.

5. The system of claim 2 or 3, wherein the power module comprises a rechargeable battery and a power conversion unit, and the power conversion unit is respectively connected to the rechargeable battery, the computer power supply, the storage module, the remote destruction module, the plug/unplug prevention module and the control module, and is configured to convert a voltage provided by the rechargeable battery or the computer power supply into a working voltage of the storage module, the remote destruction module, the plug/unplug prevention module and the control module.

6. The system of claim 1, wherein the remote destruction module is a GM323 GSM module.

7. The system of claim 2 or 3, wherein the main control unit employs a JMF612 chip.

8. The solid state disk decryption prevention system of claim 4, wherein the comparator is a TLV3491 chip.

9. The system of claim 5, wherein the power conversion unit employs a synchronous buck switching power chip, wherein the operating voltage of the main control unit includes three types, namely 3.3V, 1.2V and 1.8V, the operating voltage of the control module is 3.3V, and the operating voltage of the remote destruction module is 3.8V.

10. Solid state disk, characterized in that it comprises a solid state disk anti-decryption system according to any of claims 1 to 9.

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