Using Blockchain to Protect 3D Printing from Unauthorized Model Tampering
Yajing Wang; Yaodong Yang; Shuaipeng Suo; Mingyuan Wang; Weifeng Rao
As three-dimensional (3D) printing technology is widely used, security issues have arisen, especially in the terminal parts of automobiles, aircraft, and 3D-printed military equipment. If the original design models or the STL (stereolithography) files are hacked or tampered, severe consequences can be anticipated. In this paper, we propose a demonstration to use a high-throughput blockchain to store the &ldquo:fingerprints&rdquo: of the 3D model and verify the &ldquo:fingerprints&rdquo: before printing to prevent illegal tampering. Relying on the tamper-resistant features of blockchain, the security of the model and the credibility of the terminal components can be ensured. The combination of blockchain and 3D printing will help people to build a trusted manufacturing environment and realize a more flexible manufacturing for future industry.
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