0342105 20240903170620.820100413235959.9 000277828600001 77953550221 On the anti-synchronization detection for the generalized Lorenz system and its applications to secure encryption 18 s. cav_un_epca*02971630023-5954Kybernetika461 (2010)1-18Ústav teorie informace a automatizace AV ČR, v. v. i. observer nonlinear system chaos shift keying generalized Lorenz system synchronization anti-synchronization secure communication cav_un_auth*0215855 Lynnyk Volodymyr Teorie řízení Department of Control Theory TŘ TR UTIA-B Department of Control Theory Ústav teorie informace a automatizace AV ČR, v. v. i. cav_un_auth*0101074 Čelikovský Sergej Teorie řízení Department of Control Theory TŘ TR UTIA-B Department of Control Theory Ústav teorie informace a automatizace AV ČR, v. v. i. textový dokument http://library.utia.cas.cz/separaty/2010/TR/lynnyk-0342105.pdf 313 kB GA102/08/0186 GA ČR CZ cav_un_auth*0239127 CEZ:AV0Z10750506 In this paper, a modified version of the Chaos Shift Keying (CSK) scheme for secure encryption and decryption of data will be discussed. The classical CSK method determines the correct value of binary signal through checking which initially unsynchronized system is getting synchronized. On the contrary, the new anti-synchronization CSK (ACSK) scheme determines the wrong value of binary signal through checking which already synchronized system is loosing synchronization. The ACSK scheme is implemented and tested using the so-called /emph{generalized Lorenz system} (GLS) family making advantage of its special parametrization. Such an implementation relies on the parameter dependent synchronization of several identical copies of the GLS obtained through the observer-based design for nonlinear systems. The purpose of this paper is to study and compare two different methods for the anti-synchronization detection, including further underlying theoretical study of the GLS. 2011 BC 4 A O 4a 4o 20231122134005.5 http://hdl.handle.net/11104/0184929 COMPUTERSCIENCECYBERNETICS 0.562 0.219 8.1 0.00125 0.22 463 73 21 0.323 20.57 0.48 Q2 27.15 23.684 Q3 Q2 2010 Soubory v repozitáři: lynnyk-0342105.pdf, 0342105.pdf 77953550221 SCOPUS 000277828600001 WOS textový dokument 313 kB cav_un_epca*0297163 Kybernetika 0023-5954 Roč. 46 č. 1 2010 1 18 Ústav teorie informace a automatizace AV ČR, v. v. i.