3D mesh encryption with differentiated visual effect and high efficiency based on chaotic system.

With the increasing value of 3D mesh in the economic, social, commercial, and defense sectors, its security is becoming increasingly important. Meanwhile, the 3D mesh may be distributed to people with different security levels, for whom the mesh should present a differentiated visual effect. Recently, some researchers have proposed one encrypted scheme that can meet the above requirements; however, the scheme is complex and time costly. Motivated by this, we analyze the structure of the 3D mesh and the features of the scheme with differentiated visual effects. A novel encryption framework (XOR-permutation) combined with the chaotic system is constructed to encrypt 3D meshes, which achieves the differentiated visual effects and reduces the time cost. Experiments show that the proposed scheme is enough security and the time cost with the previous work is more than ten or tens of times higher than the proposed scheme. • This scheme achieves the ability to present differentiated visual effects after decryption. • A novel encryption framework is proposed for differentiated visual effects of 3D meshes. • It greatly simplifies the encryption process and reduces the time cost. [ABSTRACT FROM AUTHOR]