When an attacker meets a cipher-image in 2018: A Year in Review

TL;DR

This review paper analyzes the technical challenges faced by cryptanalysts when attacking cipher-images encrypted by schemes proposed in 2018, highlighting key works and summarizing open problems in image encryption security.

Contribution

It provides a classified survey of 2018's image cryptanalysis works, offering insights into design and analysis challenges for future research.

Findings

Most 2018 works are surveyed due to their small number.

Identifies key challenges in designing secure image encryption schemes.

Summarizes open problems to guide future cryptanalysis and scheme design.

Abstract

This paper aims to review the encountered technical contradictions when an attacker meets the cipher-images encrypted by the image encryption schemes (algorithms) proposed in 2018 from the viewpoint of an image cryptanalyst. The most representative works among them are selected and classified according to their essential structures. Almost all image cryptanalysis works published in 2018 are surveyed due to their small number. The challenging problems on design and analysis of image encryption schemes are summarized to receive the attentions of both designers and attackers (cryptanalysts) of image encryption schemes, which may promote solving scenario-oriented image security problems with new technologies.