0421811 20240111140839.720131220235959.9 84896672674 000349902500078 10.1109/ICITST.2013.6750252 5 s. C cav_un_epca*0421810978-1-908320-16-2508-512LondonIEEE2013 Hyperchaos piecewise linear systems multi-scrolls chaotic encryption stream cypher encryption cav_un_auth*0298053 Ontanon-García L.J. MX cav_un_auth*0297166 García-Martínez M. MX cav_un_auth*0295508 Campos-Cantón E. MX cav_un_auth*0101074 Teorie řízení Department of Control Theory TŘ TR Department of Control Theory Čelikovský Sergej UTIA-B Ústav teorie informace a automatizace AV ČR, v. v. i. textový dokument 1,44 MB cav_un_auth*0283207 GAP103/12/1794 GA ČR CZ Here we use a pseudo-random bit generator based on a hyperchaotic unstable dissipative system suitable for encryption. This type of system presents saddle hyperbolic equilibrium points with eigenvalues as follows: two negative real eigenvalue, and one pair of complex conjugated eigenvalues with positive real part. The hyperchaotic system in R4 is binarized in order to generate a pseudo-random sequence, that is used to encrypt binary information of a grayscale image via symmetric-key algorithm. cav_un_auth*0298054 The 8th International Conference for Internet Technology and Secured Transactions (ICITST-2013) 09.12.2013-12.12.2013 Londýn GB BC 2014 4 PR RVO:67985556 http://hdl.handle.net/11104/0228078 2013 84896672674 SCOPUS 000349902500078 WOS textový dokument 1,44 MB cav_un_epca*0421810 Proceedings of the 8th International Conference for Internet Technology and Secured Transactions (ICITST-2013) 978-1-908320-16-2 508 512 London IEEE 2013