Substitution Boxes (S-Boxes) play an important role in many modern-day cryptographic
algorithms, more commonly known as ciphers. Without carefully chosen S-Boxes, such …

Boolean functions represent an important primitive in the design of various cryptographic
algorithms. There exist several well-known schemes where a Boolean function is used to …

Cryptographic algorithms are used to ensure confidentiality, integrity and authenticity of data
in information systems. One of the important areas of modern cryptography is that of …

Nonlinear substitutions or S-boxes are important cryptographic primitives of modern
symmetric ciphers. They are designed to complicate the plaintext-ciphertext dependency …

The role of Boolean functions is prominent in several areas including cryptography,
sequences, and coding theory. Therefore, various methods for the construction of Boolean …

Boolean functions are used as nonlinear filter functions and combiner functions in several
stream ciphers. The security of these stream ciphers largely depends upon cryptographic …

S-boxes, the key nonlinear component in numerous cryptographic systems, play a crucial
role in ensuring security. The quest for random highly nonlinear S-boxes, a desirable …

Cryptography, the art and science of creating secret codes, and cryptanalysis, the art and
science of breaking secret codes, underwent a similar and parallel course during history …

The problem of nonlinear substitution generation (S-boxes) is investigated in many related
works in symmetric key cryptography. In particular, the strength of symmetric ciphers to linear …

The aim of the research presented in this paper is to investigate the use of genetic algorithm
in the cryptanalysis of transposition cipher. The applicability of genetic algorithms for …