Identity authentication scheme of cloud storage for user anonymity via USB token

An identity authentication scheme specially designed for cloud storage via USB token is presented in this paper. Meanwhile, a secure cloud storage model, in which the excellent features of the proposed scheme are fully displayed, is introduced and detailed cryptanalysis are implemented to illustrate that the scheme is able to achieve all the existing criteria of the USB token-based identity authentication. In addition, comparison with other related authentication schemes has been made, and the results have shown that the proposed scheme is both applicable and efficient.