The invention discloses a secure coding and decoding method of railway transponder messages based on lightweight chaotic authentication encryption. The secure coding and decoding method comprises a dedicated lightweight chaotic authentication encryption method for transponder messages, a transponder message coding method based on authentication encryption, a corresponding decryption verification algorithm, and a transponder message decryption verification method based on the decryption verification algorithm. On the premise of maintaining the ETCS and CTCS standards, confidentiality, integrityand authentication protection is provided for the transponder messages, and security risks such as forgery, tampering and counterfeiting faced by the existing transponder messages are avoided. Meanwhile, in view of the limited computing resources of a transponder read-write device, a lightweight chaotic authentication encryption algorithm is used for providing lightweight information security protection for the transponder messages, so that the train-ground communication security of a transponder of a train control system is effectively enhanced.

Secure coding and decoding method of railway transponder messages based on lightweight chaotic authentication encryption

The invention discloses a lightweight RFID authentication method based on integer chaos. According to the invention, by use of pseudo random numbers, freshness of labels and communication contents of readers are ensured; and by use of the Hash function, confidentiality of the communication contents is ensured. Thus, common attack means such as counterfeiting attacking, replay attacking and eavesdropping can be resisted.

Lightweight RFID authentication method based on integer chaos

On the basis of the analysis of commonly used RFID authentication protocols' shortcomings, this paper proposes a random number and hash function based RFID bi-directional authentication protocol. This protocol can resolve eavesdropping, illegal access, location tracking, impersonation and replay attack.

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Kai Shang

Papers

Lightweight RFID authentication method based on integer chaos

RFID Bi-directional Authentication Protocol Based on Random Number and Hash Function