Chaotic video objects encryption based on mixed feedback, multiresolution decomposition and time-variant S-boxes

Ntalianis, KS; Kollias, SD

dc.contributor.author	Ntalianis, KS	en
dc.contributor.author	Kollias, SD	en
dc.date.accessioned	2014-03-01T02:43:10Z
dc.date.available	2014-03-01T02:43:10Z
dc.date.issued	2005	en
dc.identifier.issn	15224880	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/31265
dc.subject	Chaos	en
dc.subject	Feed-back	en
dc.subject	Layered access	en
dc.subject	Multiresolution decomposition	en
dc.subject	Time-variant S-Boxes	en
dc.subject	Video object encryption	en
dc.subject.other	Layered access	en
dc.subject.other	Multiresolution decomposition	en
dc.subject.other	Time-variant S-Boxes	en
dc.subject.other	Video object encryption	en
dc.subject.other	Chaos theory	en
dc.subject.other	Color image processing	en
dc.subject.other	Feature extraction	en
dc.subject.other	Feedback	en
dc.subject.other	Multimedia systems	en
dc.subject.other	Wireless telecommunication systems	en
dc.subject.other	Public key cryptography	en
dc.title	Chaotic video objects encryption based on mixed feedback, multiresolution decomposition and time-variant S-boxes	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/ICIP.2005.1530254	en
heal.identifier.secondary	http://dx.doi.org/10.1109/ICIP.2005.1530254	en
heal.identifier.secondary	1530254	en
heal.publicationDate	2005	en
heal.abstract	The increasing popularity of multimedia applications creates an increasing need for secure storage and transmission techniques. Especially wireless communications, which can be easily intercepted, should be protected by eavesdroppers. Towards this direction several encryption schemes have been proposed in literature, however most of them do not consider regions of interest (video objects). These regions may need better protection, may be the only regions that need protection, or should be accessed separately according to different privileges. For these reasons in this paper a video objects chaotic encryption system is proposed. Initially stereoscopic pairs are analyzed and video objects are automatically extracted using a color segments fusion approach. Next for each video object multiresolution decomposition is performed and the pixels of the lowest resolution level are encrypted using a chaotic cipher module. Finally the encrypted regions are propagated to the higher resolution levels and the encryption process is repeated until the highest level is reached. The system presents robustness against known cryptanalytic attacks, enables layered access of multimedia content and the overall security can be enhanced due to region topology. © 2005 IEEE.	en
heal.journalName	Proceedings - International Conference on Image Processing, ICIP	en
dc.identifier.doi	10.1109/ICIP.2005.1530254	en
dc.identifier.volume	2	en
dc.identifier.spage	1110	en
dc.identifier.epage	1113	en