Security optimization of Keeloq algorithm based on UDS protocol

Ji-gao Niu; Ai-guo Wu; Zhong-jing Zhou; Chun-hua Xu

doi:10.1117/12.3012116

21 December 2023 Security optimization of Keeloq algorithm based on UDS protocol

Ji-gao Niu, Ai-guo Wu, Zhong-jing Zhou, Chun-hua Xu

Proceedings Volume 12970, Fourth International Conference on Signal Processing and Computer Science (SPCS 2023); 129703N (2023) https://doi.org/10.1117/12.3012116
Event: Fourth International Conference on Signal Processing and Computer Science (SPCS 2023), 2023, Guilin, China

Abstract

Analyze the encryption and decryption principle of KeeLoq and the shortcomings in security, propose an improvement scheme for KeeLoq algorithm to further improve its security; and conduct experimental verification by a BCM controller of a car, the experimental method is to combine the 027 service in the UDS protocol in KeeLoq algorithm to generate key authentication between the key side and the car side, the protocol generated temporary The key is passed with the factory key and serial number to derive a new password, and finally the key generation algorithm and the communication parties obtain the improved KeeLoq key in the learning process. The performance comparison with the original KeeLoq and triple KeeLoq algorithms concludes that while improving the security of the original algorithm, it reduces the complexity of the algorithm and increases the computation rate compared to triple KeeLoq. It is more suitable for PEPS system.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ji-gao Niu, Ai-guo Wu, Zhong-jing Zhou, and Chun-hua Xu "Security optimization of Keeloq algorithm based on UDS protocol", Proc. SPIE 12970, Fourth International Conference on Signal Processing and Computer Science (SPCS 2023), 129703N (21 December 2023); https://doi.org/10.1117/12.3012116

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