Power terminal wireless debugger based on PUF encryption
By introducing a PUF chip into the wireless power terminal debugger for identity authentication and encrypted communication, the security and efficiency issues of the wireless power terminal debugger are solved, enabling efficient and secure debugging of power terminal equipment.
Patent Information
- Application Number
- CN202423281216.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing wireless power terminal debuggers have significant security vulnerabilities, being susceptible to attacks such as unauthorized device access, data theft, and communication signal tampering. Furthermore, they are cumbersome to operate and inefficient.
A power terminal wireless debugger based on PUF encryption is adopted. The PUF chip is used for device authentication, a unique response value is generated through challenge-response verification, and a dynamic session key is negotiated with the distribution network debugging terminal for encrypted communication to ensure the security and integrity of data transmission.
It improves the security and efficiency of the commissioning process of power terminal equipment, prevents malicious attacks, simplifies the operation process, and ensures the confidentiality and integrity of data transmission.
Smart Images
Figure CN223639268U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of power system terminal equipment debugging, especially a kind of power terminal wireless debugger based on PUF encryption. BACKGROUND
[0002] With the continuous improvement of the automation level of power system, the role of power terminal equipment such as distribution network, smart meter, distribution and transformation monitoring terminal in power management is increasingly important. In the process of equipment debugging, traditional wired connection methods such as infrared interface, 485 port, etc. can ensure the stability of debugging to some extent, but there are problems such as complicated operation, low efficiency, risk of misconnection and miscontact, and the need for on-site operation. In addition, with the development of wireless communication technology, more and more power terminal equipment begins to use wireless debugging to improve operation efficiency and flexibility and reduce the complexity of on-site operation.
[0003] However, the existing wireless debugger has a big hidden danger in terms of security. Due to the openness and vulnerability of wireless communication, power terminals are vulnerable to security threats such as illegal device access, data theft and communication signal tampering during debugging. For example, traditional Bluetooth communication lacks sufficient identity authentication and encryption mechanism, and is vulnerable to Bluetooth hijacking and data tampering attacks. Therefore, how to ensure data security, device authentication and prevent malicious attacks during wireless debugging has become a key problem in the debugging technology of power terminal.
[0004] Physical Unclonable Function (PUF) technology, as a new hardware encryption technology, has natural security and attack resistance. By utilizing the physical characteristics of hardware itself, PUF technology can provide unique identity authentication information for each device and generate secure keys for data encryption, with the advantages of being impossible to copy and crack. Although PUF technology has achieved certain application in the field of identity authentication and key management, wireless debuggers based on PUF encryption technology have not been widely used in wireless debuggers of power terminal equipment. There is a lack of PUF-based wireless debugging solution for power terminal in the prior art, which cannot meet the high security and efficiency requirements of the debugging process in the power system.
[0005] Therefore, there is an urgent need for a PUF-based power terminal wireless debugger to improve the security and efficiency of the debugging process and prevent malicious attacks on power terminal equipment during debugging. UTILITY MODEL CONTENT
[0006] The utility model aims at solving the problems of the prior art, and provides a PUF-based power terminal wireless debugger to improve the security and efficiency of the debugging process and prevent malicious attacks on power terminal equipment during debugging.
[0007] In order to achieve the above object, the utility model adopts the following technical scheme:
[0008] A power terminal wireless debugger based on PUF encryption, comprising: a front wireless debugger terminal and a network debugging terminal, the front wireless debugger terminal is connected with the network debugging terminal through Bluetooth;
[0009] The front wireless debugger terminal comprises: a circuit board, a serial port connected with the circuit board, a USB power supply interface, a cable connecting the USB power supply module and the circuit board, and a shell arranged on the outer side of the circuit board; the circuit board is integrated with a PUF chip, a Bluetooth chip, a serial port conversion chip, a power management chip and an antenna; the serial port is connected with the power terminal and is used for transmitting debugging data; the Bluetooth chip is respectively in communication connection with the PUF chip, the serial port conversion chip and the antenna;
[0010] The network debugging terminal is pre-registered with a challenge-response pair library, and is used for verifying the identity of the front wireless debugger terminal and carrying out encrypted communication with the front wireless debugger terminal.
[0011] Preferably, the PUF chip is connected with the Bluetooth chip through an SPI or I2C interface, and the PUF chip is used for receiving a challenge value and generating a response value for the Bluetooth chip to deliver.
[0012] Preferably, the Bluetooth chip is built-in with an AES hardware encryption module.
[0013] Preferably, the cable is a flat cable.
[0014] Preferably, the power management chip supplies power through the USB power supply interface, and supplies 3.3V voltage obtained by stabilizing the input 5V voltage to the PUF chip, the Bluetooth chip and the serial port conversion chip respectively.
[0015] Preferably, the PUF chip adopts Puanshixin HD13HS10K.
[0016] Preferably, the Bluetooth chip adopts Fengjiawei PHY6222.
[0017] Preferably, the serial port conversion chip adopts Xili Te SIT3232EEUE.
[0018] Preferably, the antenna adopts RainSun ceramic omnidirectional antenna AN3216-24.
[0019] Preferably, the network commissioning terminal generates a random challenge value, and sends the challenge value to the front-end wireless debugger terminal through Bluetooth; the PUF chip of the front-end wireless debugger terminal generates a response value and returns the response value to the Bluetooth chip; the network commissioning terminal verifies the identity of the front-end wireless debugger terminal according to a pre-registered challenge-response pair library, and generates a dynamic session key based on the challenge value and the response value, and transmits subsequent debugging data through AES encryption.
[0020] The utility model discloses a kind of power terminal wireless debuggers based on PUF encryption with the following beneficial effects.
[0021] Physical unclonable function (PUF) chip is used to realize device identity authentication, and challenge-response verification is carried out with the network commissioning terminal, a unique response value is dynamically generated to avoid the security risks of traditional static key mechanism being vulnerable to attacks. The PUF chip generates a key based on hardware physical characteristics, and has the characteristics of unclonability and high randomness, which fundamentally improves the security of device identity authentication. The Bluetooth chip has an AES hardware encryption module built-in, which generates a dynamic session key through challenge value and response value negotiation, encrypts subsequent debugging data for transmission, ensures the confidentiality and integrity of data during transmission, and prevents data leakage or tampering.
[0022] The utility model provides simple, stable and efficient power terminal wireless debugging solution, which can effectively meet the needs of device authentication and communication security in power terminal debugging process, and has important practical value and promotional significance in power internet of things debugging application. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is a layout schematic diagram of the utility model.
[0024] Figure 2 It is a front-end wireless debugger terminal principle diagram of the utility model.
[0025] Figure 3 It is a front-end wireless debugger terminal structure schematic diagram of the utility model.
[0026] In the drawings: 1, front-end wireless debugger terminal; 11, circuit board; 111, PUF chip; 112, Bluetooth chip; 113, serial port conversion chip; 114, power management chip; 115, antenna; 12, serial port; 13, USB power interface; 14, cable; 15, shell; 16, indicator light; 2, network commissioning terminal; 3, power terminal; 31, terminal 232 interface; 32, terminal USB interface. DETAILED DESCRIPTION
[0027] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.
[0028] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Embodiment
[0029] Reference Figure 1 A power terminal wireless debugger based on PUF encryption, comprising a front wireless debugger terminal 1 and a network debugging terminal 2. Please refer to Figure 2 and Figure 3 The front wireless debugger terminal 1 is connected with the network debugging terminal 2 through Bluetooth. The front wireless debugger terminal 1 specifically comprises:
[0030] The circuit board 11 integrates a PUF chip 111, a Bluetooth chip 112, a serial port conversion chip 113, a power management chip 114 and an antenna 115 thereon.
[0031] The shell 15 provided outside the circuit board 11, the shell 15 covers the circuit board 11, provides physical protection, as an optimization, the shell 15 is provided with an indicator light 16, the indicator light 16 indicates the connection state of the front wireless debugger terminal 1 and the network debugging terminal 2.
[0032] The serial port 12 is connected with the circuit board 11 and extends to the outside of the shell 15, is used for connecting with the power terminal 3, and specifically the serial port 12 is connected with the terminal 232 interface 31, and transmits debugging data. In this embodiment, as an optimization, the serial port conversion chip 113 adopts SIT3232EEUE of Chip Force, and is connected with the Bluetooth chip 112 through a serial communication protocol, to realize the functions of level conversion and data transmission. The front wireless debugger terminal 1 communicates with the power terminal 3 through the serial port 12, to complete the transmission of debugging data.
[0033] The USB power interface 13 is connected with the power management chip 114 through the connecting cable 14 to supply power for the PUF chip 111, the Bluetooth chip 112 and the serial conversion chip 113, and the USB power interface 13 is connected with the terminal USB interface 32. In the embodiment, the power management chip 114 preferably adopts the Beling LDO chip BL8563G-33PRA, the power management chip 114 obtains 5V voltage through the USB interface, stabilizes it to 3.3V, and distributes it to the PUF chip 111, the Bluetooth chip 112 and the serial conversion chip 113. The USB power interface 13 is directly connected with the power terminal 3 USB interface; the cable 14 adopts the flat type for convenient installation after the power terminal 3 cover is closed.
[0034] The antenna 115 is in communication connection with the Bluetooth chip 112, and is used for sending and receiving Bluetooth signals. In the embodiment, the antenna 115 preferably adopts the RainSun ceramic omnidirectional antenna 115AN3216-24, which supports high-sensitivity wireless signal sending and receiving. The antenna 115 does not need additional power supply and is directly connected with the Bluetooth chip 112, which can effectively improve the quality and stability of wireless communication.
[0035] The network configuration debugging terminal pre-registers a challenge-response pair library, which is used for verifying the identity of the front-end wireless debugger terminal and performing encrypted communication with the front-end wireless debugger terminal.
[0036] In a specific embodiment, the PUF chip 111 adopts the Puron HD13HS10K and is connected with the Bluetooth chip 112 through the SPI interface. The PUF chip 111 can generate a unique response value according to the input challenge value based on the physical unclonable feature, and transmit the response value to the Bluetooth chip 112 through the SPI interface. The Bluetooth chip 112 is responsible for sending the response value of the PUF chip 111 to the network configuration debugging terminal 2.
[0037] In use, the network debugging terminal 2 pre-stores a challenge-response pair (CRP) library for verifying the identity of the front-end wireless debugger terminal 1. The network debugging terminal 2 generates a random challenge value and sends it to the Bluetooth chip 112 of the front-end wireless debugger terminal 1 through Bluetooth. The Bluetooth chip 112 passes the challenge value to the PUF chip 111, the PUF chip 111 generates a response value and returns it to the Bluetooth chip 112, and the Bluetooth chip 112 sends the response value back to the network debugging terminal 2 for identity verification. The Bluetooth chip 112 uses the Fengda Micro PHY6222, which integrates an ARM® Cortex™-M0 32-bit processor, Flash: 512K, SRAM: 64K (sleep mode, data retention); ROM: 96K (Bluetooth protocol stack); eFuse 256bit, supports OTA function, facilitates subsequent program upgrade; the Bluetooth chip 112 has a built-in AES hardware encryption module, which supports efficient data encryption and decryption. After identity verification, the front-end wireless debugger terminal 1 and the network debugging terminal 2 negotiate to generate a dynamic session key based on the challenge value and the response value. The key is used for encrypted transmission of subsequent debugging data, ensuring the security and integrity of the data. The network debugging terminal 2 supports data reading, file reading / delivery, management and maintenance, HPLC and other functional applications.
[0038] Workflow: After the network debugging terminal 2 generates a random challenge value and sends it to the front-end wireless debugger terminal 1 through Bluetooth, the PUF chip 111 of the front-end wireless debugger terminal 1 generates a response value and returns it to the Bluetooth chip 112, and the Bluetooth chip 112 sends the response value to the network debugging terminal 2. The network debugging terminal 2 verifies the identity of the front-end wireless debugger terminal 1 according to the pre-registered challenge-response pair library and completes authentication.
[0039] After the above verification, both parties negotiate to generate a dynamic session key based on the challenge value and the response value. During debugging, all data is encrypted and transmitted through the AES hardware encryption module, effectively preventing data leakage and tampering.
[0040] The above is only a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto. Substitution can be substitution of part of the structure, device, method step, or complete technical solution. According to the technical solution and the utility model concept of the present application, equivalent substitution or change should be covered within the protection scope of the present application.
Claims
1. A power terminal wireless debugger based on PUF encryption, a pre-wireless debugger terminal (1) and a network debugging terminal (2), the pre-wireless debugger terminal (1) is connected with the network debugging terminal (2) through Bluetooth, characterized in that: The pre-wireless debugger terminal (1) comprises a circuit board (11), a serial port (12) connected with the circuit board (11), a USB power supply interface (13), a cable (14) connecting the USB power supply module and the circuit board (11), and a shell (15) arranged outside the circuit board (11); the circuit board (11) is integrated with a PUF chip (111), a Bluetooth chip (112), a serial port conversion chip (113), a power management chip (114), and an antenna (115); the serial port (12) is connected with a power terminal (3) for transmitting debugging data; the Bluetooth chip (112) is respectively in communication connection with the PUF chip (111), the serial port conversion chip (113), and the antenna (115); The network debugging terminal (2) is pre-registered with a challenge-response pair library, the network debugging terminal (2) is used for verifying the identity of the pre-wireless debugger terminal (1) and performing encrypted communication with the pre-wireless debugger terminal (1).
2. The PUF-based encrypted power terminal wireless commissioning device of claim 1, wherein, The PUF chip (111) is connected with the Bluetooth chip (112) through an SPI or I2C interface, the PUF chip (111) is used for receiving a challenge value and generating a response value for the Bluetooth chip (112) to deliver.
3. A PUF-based cryptographic power terminal wireless commissioning device according to claim 1 or 2, characterized in that, The Bluetooth chip (112) is built-in with an AES hardware encryption module.
4. The PUF-based encrypted power terminal wireless commissioning device of claim 1, wherein, The cable (14) is a flat cable (14).
5. The PUF-based encrypted power terminal wireless commissioning device of claim 1, wherein, The power management chip (114) supplies power through the USB power supply interface (13), and supplies 3.3V voltage obtained by stabilizing the input 5V voltage to the PUF chip (111), the Bluetooth chip (112), and the serial port conversion chip (113) respectively.
6. The PUF-based encrypted power terminal wireless commissioning device of claim 1, wherein, The PUF chip (111) adopts Puanshen HD13HS10K.
7. The PUF-based encrypted power terminal wireless commissioning device of claim 1, wherein, The Bluetooth chip (112) adopts Fengjiawei PHY6222.
8. The PUF-based encrypted power terminal wireless commissioning device of claim 1, wherein, The serial port conversion chip (113) adopts Qianlixing SIT3232EEUE.
9. The PUF-based encrypted power terminal wireless commissioning device of claim 1, wherein, The antenna (115) adopts RainSun ceramic omnidirectional antenna (115) AN3216-24.