Security encryption and hardware version management system based on electrified erasable programmable read-only memory
By using a combined circuit of live-erase programmable read-only memory in the charging pile, the problems of poor security and high encryption cost of charging piles are solved, and the efficiency and low cost of secure encryption and hardware version management are achieved, which improves the product's Maintainability.
Patent Information
- Application Number
- CN202411143391.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-01-03
AI Technical Summary
The lack of encryption function of charging piles leads to poor security and is easy to crack. The existing encryption costs are high and product maintenance is difficult, especially in hardware version management.
Using live-erase programmable read-only memory, the combination of main control circuit, live-erase programmable read-only memory circuit and pre-write circuit is realized to achieve secure encryption and hardware version management, allowing erasing and rewriting when the device is powered on. data, reduce costs and improve maintainability.
It improves the safety and maintainability of charging piles, reduces the possibility of being cracked, and reduces the cost, achieving efficient encryption and version management.
Smart Images
Figure CN119249514A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of charging piles, and in particular to a security encryption and hardware version management system based on a powered erasable programmable read-only memory. Background Art
[0002] In the field of charging piles, with the popularization of electric vehicles and the continuous growth of charging demand, the safety issues of charging piles have become increasingly prominent. As an important part of the charging infrastructure of electric vehicles, the safety and stability of charging piles are directly related to the user's charging experience and the safe operation of the vehicle. The encryption function, as a key technology in the field of information security, protects the security of data during transmission and storage by encrypting the data, and prevents the data from being illegally obtained or tampered with.
[0003] Currently, many charging piles on the market are not designed with encryption functions. Such products have security risks and are extremely easy to be cracked; or they use expensive encryption chips to achieve encryption, but this method is not conducive to product cost control and large-scale use. With the continuous iteration and evolution of charging piles, the hardware of many products has multiple versions. Maintaining the software corresponding to multiple versions of hardware is a huge project, which will greatly consume human resources, thereby increasing the hidden cost of the product. Summary of the invention
[0004] The purpose of the present invention is to provide a secure encryption and hardware version management system based on an electrically erasable programmable read-only memory to solve the problems of poor security, easy cracking, high encryption cost, inability to use low-value products, difficult program version management, and difficult maintenance proposed in the above background technology.
[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a secure encryption and hardware version management system based on a powered erasable programmable read-only memory, comprising a main control circuit, a powered erasable programmable read-only memory circuit, and a pre-write circuit, wherein the main control circuit is mainly used for communication control of the entire system, and is used for reading a unique device serial number, an encryption area key, and hardware information from the powered erasable programmable read-only memory; The pre-write circuit is mainly used to write the hardware information of the circuit board and the encryption area key into the electrically erasable programmable read-only memory during the production process; The electrically erasable programmable read-only memory circuit is mainly used in that it allows data to be erased and rewritten through specific programming steps when the device is powered on.
[0006] Preferably, the main control circuit, the electrically erasable programmable read-only memory circuit, and the pre-write circuit are electrically connected.
[0007] Preferably, the pre-writing circuit is a single row of pins.
[0008] Compared with the prior art, the beneficial effects achieved by the present invention are: First, the present invention improves maintainability and facilitates program maintenance. No matter how the hardware changes, the hardware configuration information can be easily read to run the corresponding code, and the product security is improved, the possibility of being cracked is reduced, and the cost is low. Only a small amount of cost is added to increase two product functions, thus killing two birds with one stone. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a system architecture diagram of the present invention. DETAILED DESCRIPTION
[0010] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0011] See also Figure 1 A secure encryption and hardware version management system based on a powered erasable programmable read-only memory includes a main control circuit, a powered erasable programmable read-only memory circuit, and a pre-write circuit.
[0012] In this embodiment, the main control circuit adopts GD32F470ZIT6; the electrically erasable programmable read-only memory adopts FM24C02F; and the pre-write circuit adopts a single-row pin.
[0013] In the embodiment, in order to connect different parts or components of the circuit, a single-row needle is used as a connection interface. The single-row needle is a commonly used electronic connector, which includes a row of closely arranged pins. These pins can be inserted into corresponding holes on the circuit board to achieve circuit connection. In the pre-written circuit, the use of a single-row needle can easily connect different parts of the circuit, and it is also convenient for debugging and testing. This connection method has the advantages of simple structure, easy plugging and unplugging, and good stability.
[0014] In this embodiment, the main control circuit combines the characteristics of high integration, high reliability and ease of use, supports multiple communication interfaces, such as UART, SPI, I2C, USB, etc., and rich peripheral interfaces, such as GPIO, ADC, DAC, PWM, etc., which can meet various complex application requirements.
[0015] In this embodiment, the electrically erasable programmable read-only memory is a non-volatile memory that can be erased and programmed multiple times in a powered-on state, and can be quickly accessed to save reading and writing time.
[0016] Specifically, the main control circuit is mainly used for communication control of the entire system, etc. In this system, it is used to read the unique device serial number, encryption area key, hardware information, etc. from the electrically erasable programmable read-only memory; the pre-write circuit realizes writing the hardware information of the circuit board and the encryption area key to the electrically erasable programmable read-only memory during the production process.
[0017] In this embodiment, when the equipment is in production, the production test tooling simultaneously writes the hardware version information and key of the circuit board of this production batch into the electrically erasable programmable read-only memory when burning the program to the main control circuit; after the equipment is powered on and running, when the program of the main control circuit is initialized, the unique serial number and key are first read from the electrically erasable programmable read-only memory, and decrypted according to the encryption algorithm. After the encryption algorithm runs normally, the hardware version information continues to be read, and the parts are initialized according to the read hardware version information. After the initialization is completed, the product runs normally.
[0018] In this embodiment, the cost of the electrically erasable programmable read-only memory is very low, and product encryption and hardware version management can be achieved with only one electrically erasable programmable read-only memory, which greatly improves the safety performance and maintainability of the product.
[0019] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A secure encryption and hardware version management system based on a powered erasable programmable read-only memory, comprising a main control circuit, a powered erasable programmable read-only memory circuit, and a pre-write circuit, characterized in that: The main control circuit is mainly used for communication control of the entire system and is used to read the unique device serial number, encryption area key, and hardware information from the electrically erasable programmable read-only memory; The pre-write circuit is mainly used to write the hardware information of the circuit board and the encryption area key into the electrically erasable programmable read-only memory during the production process; The electrically erasable programmable read-only memory circuit is mainly used in that it allows data to be erased and rewritten through specific programming steps when the device is powered on.
2. A secure encryption and hardware version management system based on electrically erasable programmable read-only memory according to claim 1, characterized in that: The main control circuit, the electrically erasable programmable read-only memory circuit and the pre-write circuit are electrically connected.
3. The secure encryption and hardware version management system based on electrically erasable programmable read-only memory according to claim 1, characterized in that: The pre-writing circuit is a single row of pins.