RFID (Radio Frequency Identification Device) safety method based on updating of dynamic ID (Identifier) and key of automobile security system

Abstract

The invention discloses an RFID (Radio Frequency Identification Device) safety method based on updating of a dynamic ID (Identifier) and a key of an automobile security system and relates to the technical fields of network type automobile security systems and wireless communication. A network type automobile security system is mounted in a car; a reader-writer of a radio frequency identifying device is mounted at a door of the car; a user can have communication in a spatial wireless signal channel by holding an electronic label close to the reader-writer; a main control module is used for data processing; information interaction can be implemented by RFID security protocol identification with the dynamic ID and the key updating between the label and the reader-writer; if the label is legal, the label and the ID and the key of a background server are simultaneously updated, the door of the car is opened, and an ignition system of the car can be started; if the label is illegal, the ID and the key are not updated, the door of the car cannot be opened, and the ignition system of the car is in a closed state. The method disclosed by the invention can be used for guaranteeing accuracy and safety of the protocol.

Description

【Technical field】 [0001] The present invention relates to the technical fields of networked automobile security system and wireless communication, and more specifically relates to the radio frequency identification system based on dynamic and a secure protocol for rekeying. 【Background technique】 [0002] The car security system has gone through four stages: mechanical, electronic, chip and network. These anti-theft devices have different functions and have their own advantages. However, in the long run, the overall car anti-theft technology is developing towards the network-based anti-theft system. . The networked car security system mainly uses the network as the carrier to realize the door switch control and the start, stop, and positioning operation of the vehicle, and provide real-time information on the status of the car according to the requirements of the car owner. With the development of networked car security system and wireless communication technology, th...

AI Technical Summary

Problems solved by technology

Among them, the physical method has the disadvantages of short service life, low efficiency, and non-reusability, while the one-way function encryption mechanism, because The function has one-way and encryption and is widely used, among them, agreement, identification are sent in clear text over an insecure channel, so The protocol is very vulnerable to impersonation attacks and retransmission attacks, and attackers can easily track tags; random Protocol, in each authentication process, the back-end server needs to send all tag identifications to the reader for judgment processing, which increases the authentication time and reduces the authentication speed, and the identification It is still transmitted to the tag through the reader in the form of plain text, and the attacker can intercept Counterfeit tags or replay attacks on readers; Although the protocol uses an encryption mechanism to transmit in an insecure channel to achieve tag untraceability and anti-counterfeit tag attacks, it cannot prevent reader counterfeit attacks and replay attacks; The chain protocol is based on the dynamic The update mechanism only implements one-way authentication, but is very vulnerable to retransmission and counterfeit attacks; protocol, also based on dynamic Although the update mechanism can resist retransmission attacks and counterfeit attacks, it cannot guarantee forward security and has potential security risks of desynchronization

[0005] The present invention is based on the original patent: a vehicle security system based on real-time control of vehicle communication network technology (patent application number: 201310699549.X) to further improve the security protocol between the electronic tag and the reader in the RFID system , in the original system, the information exchange channel between the electronic tag and the reader is an insecure channel, and the security and privacy of information transmission are not considered in the authentication process, which makes the system vulnerable to illegal attacks, resulting in system failure or serious consequences of paralysis

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