CN210244359U - USB Key based on hardware physical unclonable function - Google Patents
USB Key based on hardware physical unclonable function Download PDFInfo
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- CN210244359U CN210244359U CN201920635858.3U CN201920635858U CN210244359U CN 210244359 U CN210244359 U CN 210244359U CN 201920635858 U CN201920635858 U CN 201920635858U CN 210244359 U CN210244359 U CN 210244359U
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Abstract
A USB Key based on hardware physical unclonable function, comprising: the lower computer is a USB Key which comprises an MCU control module, a Physical Unclonable Function (PUF) module, a DES hardware encryption and decryption module and a UART communication module, and the upper computer comprises a workstation and software and is arranged at the right end of the lower computer, and a power line VCC, a ground wire GND, a transmission line TX and a receiving line RX are arranged between the upper computer and the lower computer. The utility model discloses USB Key based on hardware physics unclonable function, through hardware encryption and decryption and physics unclonable function Key, guarantee data transmission safety and privacy protection.
Description
Technical Field
The utility model relates to a communication security field, concretely relates to USBKey based on unclonable function of hardware physics.
Background
The USB Key is hardware equipment with a USB interface, a single chip microcomputer or an intelligent card chip is arranged in the USB Key, a certain storage space is provided, a private Key and a digital certificate of a user can be stored, authentication of the user identity is achieved by utilizing a public Key algorithm arranged in the USB Key, and the private Key of the user is stored in a coded lock and cannot be read in any mode theoretically, so that the security of user authentication is guaranteed.
The USB Key in the current market mainly protects data through software encryption, and the mode can be decrypted by communication interception between an application program and encrypted dynamic library data, so that user data loss and invasion are caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the USB Key that can't ensure protection data safety, and provide a USB Key based on unclonable function of hardware physics, but guarantee data transmission safety and privacy protection through hardware encryption and decryption and physics unclonable function secret Key.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a USB Key based on a hardware physical unclonable function comprises a lower computer, wherein the lower computer is a USB Key, the USBKey comprises an MCU control module, a Physical Unclonable Function (PUF) module, a DES hardware encryption and decryption module and a UART communication module, the MCU control module, the Physical Unclonable Function (PUF) module, the DES hardware encryption and decryption module and the UART communication module are all arranged on an electric control board, the Physical Unclonable Function (PUF) module and the DES hardware encryption and decryption module are arranged on the left side of the MCU control module and are connected with the MCU control module through lines, and the UART communication module is arranged on the right side of the MCU control module and is connected with the MCU control module through lines;
the upper computer comprises a workstation and software, and is arranged at the right end of the lower computer;
the utility model discloses a high-speed wireless communication device, including host computer, lower computer, power cord VCC, ground wire GND, transmission line TX and receiving line RX between host computer and the lower computer, the one end and the host computer of power cord VCC, ground wire GND, transmission line TX and receiving line RX are connected, and the other end is connected with the lower computer, power cord VCC, ground wire GND, transmission line TX and receiving line RX arrange from top to bottom.
Preferably, the upper computer supplies power to the USB Key and sends a work instruction to the USB Key.
Preferably, a control module is arranged in the USB Key, the PUF module generates an excitation response as a symmetric Key, the symmetric Key is transmitted to the control module, original data and a control instruction of the upper computer are transmitted to the control module through a UART communication module, the control module transmits the symmetric Key and the original data to the DES hardware encryption and decryption module, and the DES hardware encryption and decryption module performs an encryption and decryption action and transmits the encrypted Key and the original data to the upper computer through the UART communication module.
Preferably, the USB Key is a hardware device, and the hardware device is an MCU + hardware physical unclonable function.
Preferably, the Physical Unclonable Function (PUF) module is composed of a delay path and an arbiter, the delay path is composed of a plurality of locations, each of the locations is composed of two alternative selectors, and each of the locations uses a control signal in common.
Preferably, the DES hardware encryption and decryption module is a file encryption system, and the DES module is formed by the logic of the DES through the international cryptographic algorithm
Preferably, the USB Key is used for encrypting and decrypting the same data as the excitation of the physical unclonable function PUF every time.
The utility model has the advantages that: the utility model discloses USB Key based on hardware physics unclonable function, through hardware encryption and decryption and physics unclonable function Key, guarantee data transmission safety and privacy protection.
Drawings
Fig. 1 is a hardware structure diagram of the present invention.
Fig. 2 is a hardware connection diagram of the present invention.
In the figure: the device comprises an upper computer 1, a UART communication module 2, an MCU control module 3, a Physical Unclonable Function (PUF) module 4, a DES hardware encryption and decryption module 5, a power line VCC6, a ground line GND7, a transmission line TX8 and a receiving line RX 9.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments, not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
With reference to fig. 1, a USB Key based on a hardware physical unclonable function includes a lower computer, which is a USB Key, where the USB Key includes an MCU control module 3, a Physical Unclonable Function (PUF) module 4, a DES hardware encryption/decryption module 5, and a UART communication module 2, the MCU control module 3, the Physical Unclonable Function (PUF) module 4, the DES hardware encryption/decryption module 5, and the UART communication module 2 are all disposed on an electronic control board, the Physical Unclonable Function (PUF)4 module and the DES hardware encryption/decryption module 5 are disposed on the left side of the MCU control module 3 and connected to the MCU control module 3 through a line, and the UART communication module 2 is disposed on the right side of the MCU control module 3 and connected to the MCU control module 3 through a line;
the upper computer 1 comprises a workstation and software, and the upper computer 1 is arranged at the right end of the lower computer;
the upper computer supplies power to the USB Key, the USB Key is electrified and then waits for the upper computer 1 to send a working instruction, and the upper computer 1 sends the working instruction to the USB Key.
The USB Key is internally provided with a control module, after the USB Key is powered on and operated, a Physical Unclonable Function (PUF) module 4 generates an excitation response as a symmetric Key, the symmetric Key is transmitted to the control module to prepare for the next encryption and decryption, the symmetric Key is transmitted to the control module, then original data and a control command of an upper computer 1 are transmitted to the control module through a UART communication module 2, the control module transmits the symmetric Key and the original data to a DES module for encryption operation, after the encryption is completed, a DES hardware encryption and decryption module 5 transmits a ciphertext to the upper computer 1 through the UART communication module 2 and transmits the ciphertext to other equipment through the upper computer 1 for storage, the control module transmits the symmetric Key and the original data to the DES hardware encryption and decryption module 5, the UART hardware encryption and decryption module 5 performs encryption and decryption actions and transmits the ciphertext to the upper computer 1 through the UART communication module 2, and is transmitted and stored to other equipment through the upper computer 1.
The USB Key is hardware equipment which is an MCU + hardware physical unclonable function, and a reliable and stable USB Key solution for hardware encryption can be provided.
The Physical Unclonable Function (PUF)4 module is composed of a delay path and an arbiter, the delay path is composed of a plurality of positions, each position is composed of two alternative selectors, each position commonly uses a control signal, when the control signal is high, output data of the previous position are transmitted to the output of the selector of the position in parallel, finally, the jump signal is output from the selector of the last position and then input to the arbiter in sequence, the arbiter judges the sequence of signal rate reaching nodes by outputting high or low, and then outputs corresponding responses, the responses of the hardware system finally reaching the positions are unique and different due to unavoidable physical differences in the physical implementation process, and the security of the secret key can be ensured by the hardware physical unclonable function key scheme.
The DES hardware encryption and decryption module 5 is a file encryption system, and the DES hardware encryption and decryption module 5 is formed by the logic of an international cryptographic algorithm DES.
The USB Key is used for encrypting and decrypting the same data as the stimulation of the physical unclonable function PUF every time, so that a unique hardware Key can be formed, the symmetric Key is immediately generated and used when being electrified, and the symmetric Key disappears immediately when the power is cut off and does not need a storage area for storage.
Referring to fig. 2, a power line VCC6, a ground line GND7, a transmission line TX8 and a receiving line RX9 are arranged between the upper computer 1 and the lower computer, one end of each of the power line VCC6, the ground line GND7, the transmission line T8X and the receiving line RX9 is connected to the upper computer 1, the other end of each of the power line VCC6, the ground line GND7, the transmission line TX8 and the receiving line RX9 are arranged from top to bottom,
the utility model discloses a lower computer and host computer 1 hardware pass through power cord VCC6, ground wire GND7, transmission line TX8 and receiving wire RX9 and connect, through power cord VCC6 and ground wire GND7 with host computer 1 power access lower computer in, for the next computer work provides the power, carry out the data communication between host computer 1 and the next computer through transmission line TX8 and receiving wire R9X.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (7)
1. A USB Key based on hardware physical unclonable function, comprising:
the lower computer is a USB Key which comprises an MCU control module, a Physical Unclonable Function (PUF) module, a DES hardware encryption and decryption module and a UART communication module, wherein the MCU control module, the Physical Unclonable Function (PUF) module, the DES hardware encryption and decryption module and the UART communication module are all arranged on an electric control board, the Physical Unclonable Function (PUF) module and the DES hardware encryption and decryption module are arranged on the left side of the MCU control module and are connected with the MCU control module through a circuit, and the UART communication module is arranged on the right side of the MCU control module and is connected with the MCU control module through a circuit;
the upper computer comprises a workstation and software, and is arranged at the right end of the lower computer;
the utility model discloses a high-speed wireless communication device, including host computer, lower computer, power cord VCC, ground wire GND, transmission line TX and receiving line RX between host computer and the lower computer, the one end and the host computer of power cord VCC, ground wire GND, transmission line TX and receiving line RX are connected, and the other end is connected with the lower computer, power cord VCC, ground wire GND, transmission line TX and receiving line RX arrange from top to bottom.
2. The USB Key based on the hardware physical unclonable function according to claim 1, wherein the upper computer supplies power to the USB Key and sends a work instruction to the USB Key.
3. The USB Key according to claim 1, wherein a control module is provided in the USB Key, the PUF module generates a stimulus response as a symmetric Key, the symmetric Key is transmitted to the control module, the raw data and control instructions of the upper computer are transmitted to the control module through a UART communication module, the control module transmits the symmetric Key and the raw data to the DES hardware encryption/decryption module, and the DES hardware encryption/decryption module performs an encryption/decryption operation and transmits the encryption/decryption operation to the upper computer through the UART communication module.
4. The USB Key according to claim 1, wherein the USB Key is a hardware device, and the hardware device is an MCU + hardware physical unclonable function.
5. The USB Key according to claim 1, wherein the Physical Unclonable Function (PUF) module comprises a latency path and an arbiter, the latency path comprises a plurality of locations, each location comprises two alternative selectors, and each location uses a control signal in common.
6. The USB Key based on the hardware physical unclonable function according to claim 1, characterized in that the DES hardware encryption/decryption module is a file encryption system, and the DES module is formed by the logic of the DES.
7. The USB Key according to claim 1, wherein the USB Key is used to stimulate the physical unclonable function PUF with the same data each time it is encrypted and decrypted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920635858.3U CN210244359U (en) | 2019-05-06 | 2019-05-06 | USB Key based on hardware physical unclonable function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920635858.3U CN210244359U (en) | 2019-05-06 | 2019-05-06 | USB Key based on hardware physical unclonable function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210244359U true CN210244359U (en) | 2020-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920635858.3U Active CN210244359U (en) | 2019-05-06 | 2019-05-06 | USB Key based on hardware physical unclonable function |
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| Country | Link |
|---|---|
| CN (1) | CN210244359U (en) |
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2019
- 2019-05-06 CN CN201920635858.3U patent/CN210244359U/en active Active
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