In modern technological era image encryption has become an attractive and interesting field
for researchers. They work for improving the security of image data from unauthorized …

A new color image encryption algorithm is proposed by using chaotic maps. Cipher image is
constructed in three phases. In the first phase permutation of digital image is performed with …

In the Internet of Things (IoT), a lot of constrained devices are interconnected. The data
collected from those devices can be the target of cyberattacks. In this paper, a lightweight …

In this paper, we propose to present a novel technique for designing cryptographically
strong substitution-boxes using cubic polynomial mapping. The proposed cubic polynomial …

The substitution box (S-box) is an important component in block encryption algorithms. In
this Letter, the problem of constructing S-box is transformed to a Traveling Salesman …

Symmetric encryption has been considered as one of the essential means of ensuring
security of end to end communication. The robustness and strength of modern day block …

In order to ensure the basic security of wireless sensor networks (WSNs), a block encryption
algorithm based on chaotic substitution box (S-box) is proposed. In this paper, we generated …

Efficient substitution boxes have crucial importance in the design of cryptographically strong
modern block encryption algorithms. They are the only nonlinear blocks that decide the …

The cryptanalytic resistance of modern block and stream encryption systems mainly
depends on the substitution box (S-box). In this context, the problem is thus to create an S …

An efficient algorithm for obtaining random bijective S-boxes based on chaotic maps and
composition method is presented. The proposed method is based on compositions of S …