CN110807212B - USB flash disk data protection system and method based on real-time multiparty interaction authentication - Google Patents
USB flash disk data protection system and method based on real-time multiparty interaction authentication Download PDFInfo
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- CN110807212B CN110807212B CN201911019882.5A CN201911019882A CN110807212B CN 110807212 B CN110807212 B CN 110807212B CN 201911019882 A CN201911019882 A CN 201911019882A CN 110807212 B CN110807212 B CN 110807212B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Storage Device Security (AREA)
Abstract
The invention discloses a USB flash disk data protection system and method based on real-time multiparty interaction authentication, and relates to the technical field of USB flash disk security. The technical key point of the USB flash disk comprises a main control chip, a storage chip, a connection interface and an encryption Bluetooth module; the main control chip is connected with the encryption Bluetooth module and receives the information of the communication state of the encryption Bluetooth module; the main control chip is connected with the storage chip to control whether the storage chip is in a disc-falling state or not; a mobile terminal which is internally provided with a decryption Bluetooth module with an encryption Bluetooth module communication key; after the encrypted Bluetooth module and the decrypted Bluetooth module are communicated, the mobile terminal and the USB flash disk mutually send heartbeat packets to realize continuous communication, and the main control chip controls to send a disk-falling command or a disk-loading command to the storage chip based on receiving the communication state information of the encrypted Bluetooth module, so that the USB flash disk is switched to a disk-falling state or a disk-loading state.
Description
Technical Field
The invention relates to the technical field of USB flash disk security, in particular to a USB flash disk data protection system and method based on real-time multiparty interaction authentication.
Background
USB flash disk, which is called USB flash disk, english name "USB flash disk". The USB interface is a miniature high-capacity mobile storage product without a physical driver, and a plurality of U disks supporting various ports, namely three-way U disks (USB computer ports, iOS apple interfaces and android interfaces) are present on the market.
The usb disk is used as a storage medium, and often stores a lot of working materials, wherein some confidential materials are sometimes stored, and due to the small size of the usb disk, the situation that the user forgets to take the usb disk from the computer often exists, in which case, the data on the usb disk may be stolen, and thus a business loss is caused.
Disclosure of Invention
Aiming at the prior art, the first object of the invention is to provide a USB flash disk data protection system based on real-time multiparty interaction authentication, which has the advantage of improving the protection of USB flash disk data.
In order to achieve the above purpose, the present invention provides the following technical solutions: a USB flash disk data protection system based on real-time multiparty interaction authentication comprises:
the USB flash disk comprises a main control chip, a storage chip, a connection interface and an encryption Bluetooth module; the main control chip is connected with the encryption Bluetooth module and receives the information of the communication state of the encryption Bluetooth module; the main control chip is connected with the storage chip to control whether the storage chip is in a disc-falling state or not;
a mobile terminal which is internally provided with a decryption Bluetooth module with an encryption Bluetooth module communication key;
after the encryption Bluetooth module and the decryption Bluetooth module communicate, the mobile terminal and the U disk mutually send heartbeat packets to realize continuous communication,
the main control chip controls whether to send a disk-falling command for switching the USB disk to a disk-falling state to the storage chip based on receiving the communication state information of the encrypted Bluetooth module.
By adopting the technical scheme, as the encryption Bluetooth module of the USB flash disk is encrypted, only the mobile terminal (generally referred to as a mobile phone) with the decryption Bluetooth module can communicate with the mobile terminal. When the U disk and the mobile terminal are connected and communicated through the encryption Bluetooth module and the decryption Bluetooth module, bluetooth is used as a radio technology supporting short-distance communication (generally within 10 meters) of equipment, so that after a distance of about 10 meters is generated between the mobile terminal and the U disk, the communication that the mobile terminal and the U disk mutually send heartbeat packets is terminated; after the Bluetooth communication of the encryption Bluetooth module is terminated, the main control chip enables the USB flash disk to be switched to a disk-off state, so that data in the USB flash disk cannot be read and written.
Therefore, as long as the owner of the U disk brings the mobile terminal equipment away from the U disk to a certain distance, the U disk is in a disk-falling state continuously and cannot be read and written; therefore, even if the USB flash disk is forgotten to be taken away from the computer or lost, other people cannot read data from the USB flash disk, and the protection of the USB flash disk data is improved.
The invention is further provided with: and a login authentication module for acquiring a communication key of the decryption Bluetooth module based on the unique identification information is arranged in the mobile terminal.
Through adopting above-mentioned technical scheme, the user need input unique identification information before can establish bluetooth connection with the USB flash disk when using mobile terminal, has further promoted the theftproof performance of USB flash disk.
The invention is further provided with: the unique identification information is one of fingerprint information, face information or password information.
By adopting the technical scheme, fingerprint information, facial information or password information can be input into the mobile terminal as information, and can be identified in the mobile terminal as verification information.
The invention is further provided with: the number of the encryption Bluetooth modules is two, the main control chip determines and receives communication state information of the encryption Bluetooth modules based on the set logical relation of the two encryption Bluetooth modules, and controls to send a disc-falling command or a disc-loading command to the storage chip so that the USB flash disk is switched to a disc-falling state or a disc-loading state.
By adopting the technical scheme, the two encryption Bluetooth modules can realize various connection modes, and the main control chip can be in a connection state only according to whether one encryption Bluetooth module is in the connection state or not and can be in the connection state according to whether the two encryption Bluetooth modules are in the connection state or not. Thereby enabling a more varied manner of detection.
The invention is further provided with: and when the master control chip receives that the encrypted Bluetooth module is not in a communication state, delaying a preset detection time and then sending a disc-falling command to the storage chip.
By adopting the technical scheme, when the encryption Bluetooth module is disconnected, the main control chip gives the buffer time of the detection time length, so that the error disconnection caused by special conditions is avoided, and the implementation is influenced.
The invention is further provided with: and the communication key sent by the heartbeat packet is randomly generated by the mobile terminal.
By adopting the technical scheme, the communication key is randomly generated, so that the safety of communication between the mobile terminal and the U disk can be further improved.
The second object of the invention is to provide a USB flash disk data protection method based on real-time multiparty interaction authentication, which has the advantage of improving the security of USB flash disk data.
In order to achieve the above purpose, the present invention provides the following technical solutions: a USB flash disk data protection method based on real-time multiparty interaction authentication comprises the following steps:
the USB flash disk interface is accessed to the terminal equipment, and the USB flash disk is in a disk-falling state;
bluetooth communication is established between the encryption Bluetooth module of the U disk and the decryption Bluetooth module of the mobile terminal;
the mobile terminal generates a communication key so that the USB flash disk and the mobile terminal establish continuous communication of the heartbeat packet;
the main control chip sends a disc loading command to the storage chip, so that the USB flash disc is switched to a disc loading state;
the main control chip continuously detects the communication state information of the encrypted Bluetooth module;
when the main control chip detects that the heartbeat packet of the encrypted Bluetooth module is disconnected, the heartbeat packet is re-tried to be established;
and when the heartbeat packet is not reestablished within the preset detection duration, the main control chip sends a disk-dropping command to the storage chip, so that the USB flash disk is switched to a disk-dropping state.
Through adopting above-mentioned technical scheme, the data in the USB flash disk only can be read and written after the encryption bluetooth module of USB flash disk and the decryption bluetooth module of mobile terminal connect to as long as the distance between USB flash disk and the mobile terminal exceeds bluetooth communication limit distance, the data in the USB flash disk just can not be read and written, thereby can play the effect that promotes USB flash disk data security.
The invention is further provided with: the detection duration is between 2 and 15 seconds.
By adopting the technical scheme, the effect of reconnection cannot be achieved due to too short time, and the reduction of the data security of the USB flash disk can be caused due to too short time, and the USB flash disk is in a better interval of 2 to 15 seconds.
The invention is further provided with: the establishing of Bluetooth communication between the encryption Bluetooth module of the U disk and the decryption Bluetooth module of the mobile terminal comprises the following steps:
bluetooth communication is established between one encryption Bluetooth module of the U disk and a decryption Bluetooth module of the mobile terminal;
or the Bluetooth communication is established between the two encryption Bluetooth modules of the U disk and the decryption Bluetooth modules of the two mobile terminals respectively.
By adopting the technical scheme, the detection mode can be more various.
Compared with the prior art, the invention has the beneficial effects that:
(1) By establishing Bluetooth heartbeat packet communication between the mobile terminal and the USB flash disk, the USB flash disk can be disconnected after the mobile terminal and the USB flash disk are far away, and the data protection in the USB flash disk is improved;
(2) Two encryption Bluetooth modules are arranged in the USB flash disk, so that various protections on the USB flash disk data can be realized.
Drawings
FIG. 1 is a system connection block diagram of the present embodiment;
fig. 2 is a flow chart of the method of the present embodiment.
Reference numerals: 1. USB flash disk; 11. a main control chip; 12. a memory chip; 13. a connection interface; 14. an encryption Bluetooth module; 2. a mobile terminal; 21. decrypting the Bluetooth module; 22. a memory; 23. and logging in an authentication module.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
In the embodiment, as shown in fig. 1, the interactive device includes a usb disk 1 and a mobile terminal 2, and the data protection of the usb disk 1 is implemented by bluetooth communication between the usb disk 1 and the mobile terminal 2. Bluetooth is used as a radio technology supporting short-range communication of devices, and when a distance of about 10 meters is generated between the mobile terminal 2 and the U disk 1, the communication between the mobile terminal 2 and the U disk 1 is terminated.
Specifically, the usb disk 1 includes a main control chip 11, a memory chip 12, a connection interface 13, and an encrypted bluetooth module 14. The memory chip 12, the connection interface 13 and the encryption bluetooth module 14 are all connected to the main control chip 11, and the number of the encryption bluetooth modules 14 may be one or two, and in this embodiment, two encryption bluetooth modules 14 are used.
The memory chip 12 has a number of flash memory blocks therein for storing data. The data stored in the flash memory block can be one or more of text, picture, video and the like.
The connection interface 13 is used to establish communication with the host device and to obtain power from the host device. The connection interface 13 is a USB interface.
The encryption bluetooth module 14 is preferably a 4.0 bluetooth module. The Bluetooth module is the standard of the intelligent mobile communication equipment, the hardware module of the intelligent mobile communication equipment is not required to be additionally added, the cost is low, and the power consumption of the Bluetooth module is low. And the bluetooth module has a communication key that needs to be entered when other devices connect to communicate with the encrypted bluetooth module 14.
The main control chip 11 receives the communication status information of the encrypted bluetooth module 14, and sends different commands to the memory chip 12 based on the communication status information of the encrypted bluetooth module 14. When the encryption Bluetooth module 14 is in the communication state, the main control chip 11 sends a disc loading command for switching the U disc 1 to a disc loading state to the storage chip 12; when the encryption bluetooth module 14 is not in the communication state, the main control chip 11 sends a disc-falling command to the storage chip 12, wherein the disc-falling command enables the USB flash disk 1 to be switched to a disc-falling state; the above-mentioned upper disk state refers to a state in which the usb disk 1 is readable and writable, and the disk-off state refers to a state in which the usb disk 1 is not readable and writable.
The mobile terminal 2 is typically a mobile phone, a decryption bluetooth module 21 is disposed in the mobile terminal 2, and a communication key corresponding to the communication of the encryption bluetooth module 14 is recorded in a memory 22 of the mobile terminal 2. When the mobile terminal 2 retrieves the communication key from the memory 22 to the decryption bluetooth module 21, the decryption bluetooth module 21 can perform bluetooth communication with the encryption bluetooth module 14. Further, a login authentication module 23 for obtaining a communication key of the decryption bluetooth module 21 based on unique identification information is arranged in the mobile terminal 2, wherein the unique identification information is one of fingerprint information, facial information and password information.
Therefore, when the mobile terminal 2 device inputs the unique identification information in the login authentication module 23, so that the decryption bluetooth module 21 of the mobile terminal 2 and the encryption bluetooth module 14 of the usb disk 1 communicate, the encryption bluetooth module 14 and the decryption bluetooth mutually send heartbeat packets to realize continuous communication, and a communication key sent by the heartbeat packets is randomly generated by the mobile terminal 2. It should be noted that, as will be understood by those skilled in the art, a heartbeat packet is a self-defined command word that periodically notifies the other party of its own status between two ports, and is sent at regular intervals, similar to a heartbeat, and is called a heartbeat packet.
Since the number of the encrypted bluetooth modules 14 in the usb disk 1 is two, different encryption modes can be realized by adjusting parameters in the control chip, and the first encryption mode can be whether any encrypted bluetooth module 14 is in a connection state or not, so as to judge that the usb disk 1 is in a communication state; the second encryption mode may be whether the usb disk 1 is in a communication state or not by using one of the encryption bluetooth modules 14 in a connection state; the second encryption mode may be to determine that the usb disk 1 is in a communication state by both the encrypted bluetooth modules 14 being in a connection state. Various determination modes can be realized.
A USB flash disk data protection method based on real-time multiparty interaction authentication is shown in FIG. 2, and comprises the following steps:
the interface of the U disk 1 is accessed to the terminal equipment, and the U disk 1 is in a disk-falling state;
bluetooth communication is established between the encryption Bluetooth module 14 of the U disk 1 and the decryption Bluetooth module 21 of the mobile terminal 2;
specifically, establishing bluetooth communication between the encrypted bluetooth module 14 of the usb flash disk 1 and the decrypted bluetooth module 21 of the mobile terminal 2 includes: bluetooth communication is established between one of the encryption Bluetooth modules 14 of the U disk 1 and the decryption Bluetooth module 21 of the mobile terminal 2; or the two encryption bluetooth modules 14 of the usb disk 1 and the decryption bluetooth modules 21 of the two mobile terminals 2 respectively.
The mobile terminal 2 generates a communication key so that the USB flash disk 1 and the mobile terminal 2 establish continuous communication of the heartbeat packet;
the communication key is randomly generated by the mobile terminal 2.
The main control chip 11 sends a disc loading command to the storage chip 12 so that the USB flash disk 1 is switched to a disc loading state;
the main control chip 11 continuously detects the communication state information of the encrypted Bluetooth module 14;
when the main control chip 11 detects that the heartbeat packet of the encrypted Bluetooth module 14 is disconnected, the heartbeat packet is re-tried to be established;
when the heartbeat packet is not reestablished within the preset detection duration, the main control chip 11 sends a disk-off command to the storage chip 12, so that the USB flash disk 1 is switched to a disk-off state.
Specifically, the detection duration is set to between 2 and 15 seconds.
The beneficial effects of the invention are as follows:
since the encrypted bluetooth module 14 of the usb disk 1 is encrypted, only the mobile terminal 2 having the decrypted bluetooth module 21 can communicate with its connection. After the USB flash disk 1 and the mobile terminal 2 are connected and communicated through the encryption Bluetooth module 14 and the decryption Bluetooth module 21, after a distance of about 10 meters is generated between the mobile terminal 2 and the USB flash disk 1, the communication that the mobile terminal 2 and the USB flash disk 1 mutually send heartbeat packets is terminated; after the bluetooth communication of the encryption bluetooth module 14 is terminated, the main control chip 11 switches the usb disk 1 to a disk-off state, so that the data in the usb disk 1 cannot be read and written. The protection of the data of the USB flash disk 1 is improved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (7)
1. A USB flash disk data protection system based on real-time multiparty interaction authentication is characterized in that: comprising the following steps:
the USB flash disk (1) comprises a main control chip (11), a storage chip (12), a connection interface (13) and an encryption Bluetooth module (14); the main control chip (11) is connected with the encryption Bluetooth module (14) and receives information of the communication state of the encryption Bluetooth module (14); the main control chip (11) is connected with the storage chip (12) to control whether the storage chip (12) is in a disk-falling state or not;
a mobile terminal (2) which is internally provided with a decryption Bluetooth module (21) with an encryption Bluetooth module (14) communication key;
after the encrypted Bluetooth modules (14) and the decrypted Bluetooth modules (21) are communicated, the mobile terminal (2) and the USB flash disk (1) mutually send heartbeat packets to realize continuous communication, the main control chip (11) controls to send a disk-dropping command or a disk-loading command to the storage chip (12) based on the communication state information of the received encrypted Bluetooth modules (14), so that the USB flash disk (1) is switched to the disk-dropping state or the disk-loading state, the number of the encrypted Bluetooth modules (14) is two, the main control chip (11) determines to receive the communication state information of the encrypted Bluetooth modules (14) based on the set logical relation of the two encrypted Bluetooth modules (14), controls to send the disk-dropping command or the disk-loading command to the storage chip (12), and enables the USB flash disk (1) to be switched to the disk-dropping state or the disk-loading state, and delays the preset detection time to send the disk-dropping command to the storage chip (12) when the encrypted Bluetooth modules (14) are not in the communication state.
2. The system for protecting the USB flash disk data based on real-time multi-party interactive authentication according to claim 1, wherein the system comprises: a login authentication module (23) for acquiring a communication key of the decryption Bluetooth module (21) based on the unique identification information is arranged in the mobile terminal (2).
3. The system for protecting the USB flash disk data based on real-time multi-party interactive authentication according to claim 2, wherein the system comprises: the unique identification information is one of fingerprint information, face information or password information.
4. The system for protecting the USB flash disk data based on real-time multi-party interactive authentication according to claim 1, wherein the system comprises: the communication key sent by the heartbeat packet is randomly generated by the mobile terminal (2).
5. A USB flash disk data protection method based on real-time multiparty interaction authentication is characterized in that: comprising the following steps:
the interface of the U disk (1) is accessed to the terminal equipment, and the U disk (1) is in a disk-falling state;
bluetooth communication is established between an encryption Bluetooth module (14) of the U disk (1) and a decryption Bluetooth module (21) of the mobile terminal (2);
the mobile terminal (2) generates a communication key so that the USB flash disk (1) and the mobile terminal (2) establish continuous communication of the heartbeat packet;
the main control chip (11) sends a disc loading command to the storage chip (12) so that the USB flash disc (1) is switched to a disc loading state;
the main control chip (11) continuously detects the communication state information of the encrypted Bluetooth module (14);
when the main control chip (11) detects that the heartbeat packet of the encrypted Bluetooth module (14) is disconnected, the heartbeat packet is re-tried to be established;
when the heartbeat packet is not reestablished within the preset detection duration, the main control chip (11) sends a disk-dropping command to the storage chip (12) so that the USB flash disk (1) is switched to a disk-dropping state.
6. The method for protecting the USB flash disk data based on the real-time multiparty interaction authentication according to claim 5, wherein the method comprises the following steps: the detection duration is between 2 and 15 seconds.
7. The method for protecting the USB flash disk data based on the real-time multiparty interaction authentication according to claim 5, wherein the method comprises the following steps: the establishment of bluetooth communication between an encrypted bluetooth module (14) of the usb disk (1) and a decrypted bluetooth module (21) of the mobile terminal (2) comprises:
bluetooth communication is established between one of the encryption Bluetooth modules (14) of the U disk (1) and the decryption Bluetooth module (21) of the mobile terminal (2);
or the Bluetooth communication is established between two encryption Bluetooth modules (14) of the U disk (1) and decryption Bluetooth modules (21) of the two mobile terminals (2).
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| CN201911019882.5A CN110807212B (en) | 2019-10-24 | 2019-10-24 | USB flash disk data protection system and method based on real-time multiparty interaction authentication |
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| CN101867572B (en) * | 2010-05-11 | 2015-08-12 | 中兴通讯股份有限公司 | The implementation method of wireless U disk and system |
| EP2894548B1 (en) * | 2014-01-08 | 2017-09-27 | Arthur Nicholas Keenan | System and method of manipulating an inputted character string to a diacritic-modified character string using a single layout for a character entry device |
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| CN101163006A (en) * | 2007-09-14 | 2008-04-16 | 北京飞天诚信科技有限公司 | Communication system and method for mobile memory device and host machine |
| CN106407825A (en) * | 2016-10-13 | 2017-02-15 | 深圳市魔样科技有限公司 | Bracelet and terminal-based U disk encryption method and system |
| CN207249719U (en) * | 2017-10-11 | 2018-04-17 | 王立平 | Bluetooth security USB flash disk |
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