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The Robot Operating System (ROS) streamlines human processes, increasing theefficiency of various production tasks. However, the security of data transferoperations in ROS is still in its immaturity. Securing data exchange betweenseveral robots is a significant problem. This paper proposes \textit{AuthROS},an Ethereum blockchain-based secure data sharing method, for robotcommunication. It is a ROS node authorization system capable of ensuring theimmutability and security of private data flow between ROS nodes of any size.To ensure data security, AuthROS employs the smart contract for permissiongranting and identification, SM2-based key exchange, and SM4-based plaintextencryption techniques. In addition, we deploy a data digest upload technique tooptimize data query and upload performance. Finally, the experimental findingsreveal that AuthROS has strong security, time performance, and node forging incases where data should be recorded and robots need to remain immobile.

AuthROS: Secure Data Sharing Among Robot Operating Systems Based on Ethereum