Hash function for 3D mesh model authentication

3D content-based hashing has not been as widely used as compared to 2D content-based hashing in the case of multimedia content such as images and videos. In this study, we develop a robust 3D mesh-model hashing based on a heat kernel signature (HKS) that can describe a multi-scale shape curve and is robust against isometric modifications; we also discuss the robustness, uniqueness, security, and model space of the hash for 3D model hashing.