ICCT 2022 Invited Speaker

Jiagui Wu, Southwest University, China
吴加贵, 西南大学


Jiagui Wu is a full Professor with the School of Physical Science and Technology, Southwest University and a visiting scholar in the University of California, Los Angeles, USA. He has authored or co-authored over 70 publications including about 50 journal papers. His research interests include information security, micro-nanophotonic, near-infrared, mid-infrared and far-infrared Technologies and Applications.

Speech Title: A dual-channel speech encryption scheme based on silicon photonic microcavity (SPM) chaos and dynamic DNA encoding

We proposed a novel dual-channel speech encryption scheme based on silicon photonic microcavity (SPM) chaos. The encryption is divided into four parts: cross transform, cyclic shift, dynamic DNA encoding, and block-based DNA computing. The proposed scheme uses three sets of different control parameters, which were applied to the three different processes of the scheme, and the keyspace of the proposed scheme is "2" ^"677" . Additionally, a prominent feature of this scheme is that we used two channels of voice during confusion and diffusion. We evaluate the security of the algorithm through various performance indicators. The results show that the average value of unified average changing intensity (UACI) is 33.31%, the number of samples change rate (NSCR) is 99.9992%, and the correlation coefficient can reach 0.000141, which proves that the scheme has a strong ability to resist brute force attacks.