In this paper, a chaotic image encryption algorithm based on the matrix semi-tensor product
(STP) with a compound secret key is designed. First, a new scrambling method is designed …

This paper proposes a newly developed multiple grayscale image encryption scheme using
cross-coupling of two Piece-wise Linear Chaotic Maps (PWLCM). In this scheme, cross …

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 …

Recently, an image block encryption algorithm was proposed based on some well-known
chaotic maps. The authors claim that the encryption algorithm achieves enough security …

Hundreds of image encryption schemes based on the conventional 2D image space exist in
the literature. Very few were built using the 3D image space. In this study, for better security …

Traditional image encryption schemes turn images with rich visual contents into
meaningless noise-like ones. This assures privacy security at the expense of visual …

Visual selective image encryption can both improve the efficiency of the image encryption
algorithm and reduce the frequency and severity of attacks against data. In this article, a new …

In recent years, image encryption has become a very popular and effective method to protect
digital images. Among many image encryption methods, the image encryption algorithm …

In this paper, a five-dimensional discrete hyperchaotic map is constructed by combining
Logistic map and 3D discrete Lorenz map. Based on this chaotic system, a block-based …

The quality of encryption is dependent on the complexity of the confusion-diffusion pattern
and the quality of the keystream employed. To enhance complexity and randomness, this …