Hyperchaotic encryption based on multi-scroll piecewise linear systems
García Martínez, Moises
Ontañón García Pimentel, Luis Javier
Campos Cantón, Eric
"A hyperchaotic multi-scroll piecewise linear system in R4 is binarized to generate a pseudo-random sequence which encrypt a grayscale image via symmetric-key algorithm. The sequence is analyzed throughout statistical tests according to the National Institute of Standards and Technology (NIST) specifications. The scrolls of the system are the result of a switching law that changes between the saddle hyperbolic equilibria of piecewise linear systems with eigenvalues as follows: two negative real and one pair of complex conjugate eigenvalues with positive real part. Thus, the encryption quality is evaluated depending on the variation of the number of scrolls."
Piecewise linear systems
Pseudo-random bit generator