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Hyperchaotic encryption based on multi-scroll piecewise linear systems

García Martínez, M | Ontañón García, L. J [autor/a] | Campos Cantón, E [autor/a] | Celikovský, S [autor/a].
Tipo de material: Artículo en línea Artículo en línea Tema(s): Encriptación de imágenes | Encriptación hypercaótica | Sistemas lineales a trozos | Matemáticas aplicadasTema(s) en inglés: Image encryption | Hyperchaotic encryption | Piecewise linear systems | Applied mathematicsNota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Applied Mathematics and Computation. volumen 270 (November 2015), páginas 413-424. --ISSN: 0096-3003Número de sistema: 1839Resumen:
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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.

Recurso en línea: http://www.sciencedirect.com/science/article/pii/S0096300315010929
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Disponible para usuarios de ECOSUR con su clave de acceso

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. eng

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