Optical information authentication via compressed sensing and double random phase encoding*
Junxin Chen, Nan Bao, Zhiliang Zhu · Journal of Optics · 2017
Abstract This paper presents a novel information authentication scheme via compressed sensing and double random phase encoding. Two alternative architectures have been investigated, in which significantly compressed data with micro percentage is sufficient for authentication. At the decoder end, a noise-like image with no leakage of the plaintext is recovered and subsequently authenticated using a nonlinear optical correlation approach. The authentication effectiveness, noise resistance and security performance of the proposed scheme have been experimentally validated.