0381701 20240111140820.720121029235959.9 000309921800030 84867503681 10.1142/S0218127412502318 11 s. DVD Rom cav_un_epca*02567760218-1274229 (2012)World Scientific Publishing Nonlinear system desynchronization chaos shift keying generalized Lorenz system 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. 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. textový dokument http://library.utia.cas.cz/separaty/2012/TR/celikovsky-0381701.pdf http://dx.doi.org/10.1142/S0218127412502318 524 kB GAP103/12/1794 GA ČR CZ cav_un_auth*0283207 This paper describes the chaos shift keying method based on the second derivative desynchronization error and provides its security analysis, especially against the attacks by power and return map analysis. Desynchronization chaos shift keying method (DECSK) uses methods to detect the correct bit by detecting the wrong bit. Various modifications are possible, here the method using sharp increase of error in the second derivative of synchronizing signal is used. The proposed method requires very reasonable amount of data to encrypt and time to decrypt one bit. Basically, to encrypt one bit, only one iteration (i.e. only one real number of six valid digits) is needed. At the same time, thanks to the desynchronization detection based on the synchronization error second derivative, almost 100% of the carrying chaotic signal can be used. The security of the proposed method can be systematically investigated showing its good resistance against typical decryption attacks. 2013 BC 2 4 A 4a 20231122135233.5 RVO:67985556 http://hdl.handle.net/11104/0212112 MATHEMATICSINTERDISCIPLINARYAPPLICATIONS|MULTIDISCIPLINARYSCIENCES 1.019 0.263 8.2 0.00894 0.385 4121 353 63 0.551 25.16 1.05 Q1 22.785 57.945 Q4 Q3 2012 Soubory v repozitáři: celikovsky-0381701.pdf 84867503681 SCOPUS 000309921800030 WOS textový dokument 524 kB cav_un_epca*0256776 International Journal of Bifurcation and Chaos 0218-1274 1793-6551 Roč. 22 č. 9 2012 , 1250231-1-1250231-11 World Scientific Publishing