{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T13:28:49Z","timestamp":1780579729291,"version":"3.54.1"},"reference-count":42,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2017,12,11]],"date-time":"2017-12-11T00:00:00Z","timestamp":1512950400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Nowadays, in the modern digital era, the use of computer technologies such as smartphones, tablets and the Internet, as well as the enormous quantity of confidential information being converted into digital form have resulted in raised security issues. This, in turn, has led to rapid developments in cryptography, due to the imminent need for system security. Low-dimensional chaotic systems have low complexity and key space, yet they achieve high encryption speed. An image encryption scheme is proposed that, without compromising the security, uses reasonable resources. We introduced a chaotic dynamic state variables selection procedure (CDSVSP) to use all state variables of a hyper-chaotic four-dimensional dynamical system. As a result, less iterations of the dynamical system are required, and resources are saved, thus making the algorithm fast and suitable for practical use. The simulation results of security and other miscellaneous tests demonstrate that the suggested algorithm excels at robustness, security and high speed encryption.<\/jats:p>","DOI":"10.3390\/sym9120312","type":"journal-article","created":{"date-parts":[[2017,12,11]],"date-time":"2017-12-11T12:26:37Z","timestamp":1512995197000},"page":"312","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Chaotic Dynamical State Variables Selection Procedure Based Image Encryption Scheme"],"prefix":"10.3390","volume":"9","author":[{"given":"Zia","family":"Bashir","sequence":"first","affiliation":[{"name":"Department of Mathematics, Quaid-i-Azam University, Islamabad-45320, Pakistan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jaros\u0142aw","family":"W\u0105tr\u00f3bski","sequence":"additional","affiliation":[{"name":"Faculty of Economics and Management, University of Szczecin, Mickiewicza 64, 71-101 Szczecin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tabasam","family":"Rashid","sequence":"additional","affiliation":[{"name":"Department of Mathematics, University of Management and Technology, Lahore-54770, Pakistan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sohail","family":"Zafar","sequence":"additional","affiliation":[{"name":"Department of Mathematics, University of Management and Technology, Lahore-54770, Pakistan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wojciech","family":"Sa\u0142abun","sequence":"additional","affiliation":[{"name":"Department of Artificial Intelligence method and Applied Mathematics in the Faculty of Computer Science and Information Technology, West Pomeranian University of Technology in Szczecin, \u017bo\u0142nierska 49, 71-210 Szczecin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2017,12,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1259","DOI":"10.1142\/S021812749800098X","article-title":"Symmetric ciphers based on two-dimensional chaotic maps","volume":"8","author":"Fridrich","year":"1998","journal-title":"Int. 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