A method and system for securely writing data into an NFC chip embedded in an automotive electronic sign

Abstract

The invention relates to the technical field of electronic information security, and specifically discloses a method for safely writing data into an NFC chip embedded in an automobile electronic identification, including: an NFC chip initialization stage, an NFC chip key replacement stage, and an NFC chip service data writing stage. The invention also discloses a data security writing system embedded with an NFC chip in an automobile electronic identification, including a cipher machine, a background issuing system, a CA system, a high-frequency reader, an upper computer issuing software and an NFC chip. The method for securely writing data into an NFC chip embedded in an automotive electronic identification provided by the present invention combines asymmetric authentication and symmetric authentication methods to construct a multi-mode fusion identity authentication system; data encryption is combined with a Mac to establish an effective data protection mechanism; It improves the authorized access and authorized writing of NFC chips, improves the security level of identity authentication, effectively prevents data from being eavesdropped or tampered with, and provides technical support for cross-industry and cross-department reading of NFC chips.

Description

technical field [0001] The invention relates to the technical field of electronic information security, and more particularly, to a method and system for writing data safely with an NFC chip embedded in an electronic identification of an automobile. Background technique [0002] At present, the social application of automotive electronic identification is being promoted nationwide, and pilot work has been carried out in dozens of cities. Among them, the RFID security chip embedded in the automotive electronic identification and the key system constructed based on the chip provide a basic security guarantee for the safe issuance and application of the identification. In order to further enrich the application scenarios of automotive electronic identification (such as mobile phone reading, etc.) and provide a more convenient use mode, a new NFC chip is embedded in the automotive electronic identification, and the relationship between the RFID chip and the NFC chip is establish...

AI Technical Summary

Problems solved by technology

[0004] In summary, in order to solve the problems of eavesdropping and tampering risks when keys and business data are written into NFC chips, this patent is based on research and design of an identity authentication and data protection method for NFC chip data writing. Chip data writing provides more efficient and reliable security support, while paying more attention to data protection

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