Work

Generalized forgery attack to optical encryption systems

Year: 2021

Type: article

Abstract: In previous works, the attacking methods to optical encryption systems are mainly investigated from the aspect of cryptanalysis. An alternative forgery attack is proposed recently for an encrypted computational ghost imaging (CGI) system by confusing the receiver with forged keys and fake decrypted images. But the limitation is that it only works for binary single-pixel intensity values. We propose a different forgery attacking algorithm that works for grayscale single-pixel intensity values in a general CGI system. In addition, we transfer the concept of forgery attack to the well-known double random phase encoding (DRPE) system and propose a corresponding iterative attacking algorithm. Furthermore, we propose several metrics to evaluate the imperceptibility level of the forged keys. We prove that a forgery attack can be implemented not only in a particular situation but also for general optical encryption systems.

Source: Optics Express

DOI: 10.1364/oe.444092

Authors: Jun Feng, Wei Huang, Shuming Jiao, Xiaopeng Wang

Institutions: Shenzhen University, Peng Cheng Laboratory, Hunan University

Language: English

Topic: Chaos-based Image/Signal Encryption

Subfield: Computer Vision and Pattern Recognition

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funder: National Natural Science Foundation of China