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 …

In this paper, a novel grayscale image cryptosystem based on hybrid chaotic maps is
proposed. The scheme employs both confusion phase to scramble the location of pixels and …

In this growing era, a massive amount of digital electronic health records (EHRs) are
transferred through the open network. EHRs are at risk of a myriad of security threats, to …

Today's technological era, the booming desire for e-healthcare has inflated the attention
towards the security of data from cyber attacks. As the digital medical images are transferred …

In this paper, we construct a five dimensional continuous hyperchaotic system and propose
an image encryption scheme based on the hyperchaotic system, which adopts DNA …

A medical image encryption algorithm using high-speed scrambling and pixel adaptive
diffusion was recently proposed by Hua et al. The algorithm mainly consists of random data …

Quantum mechanisms can provide strong security in image processing against the
disadvantages of pseudorandom and periodic of traditional chaotic systems. Based on its …

When a digital chaotic system is realized on hardware of finite computing precision, it will
lead to short period orbits. Although many existing image encryption algorithms declared …

Recently, several multimedia encryption techniques with permutation-diffusion architecture
have been developed. The traditional architecture applies the diffusion and permutation …

This paper puts forward an image encryption approach using chaotic maps and genetic
operations. First, the Keccak algorithm is employed to compute the hash values of a plain …