A novel image encryption technique using hybrid method of discrete dynamical chaotic maps and Brownian motion

• Published in: PloS one Vol. 14; no. 12; p. e0225031
• Main Authors: Khan, Majid, Masood, Fawad, Alghafis, Abdullah, Amin, Muhammad, Batool Naqvi, Syeda Iram
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 19.12.2019; Public Library of Science (PLoS)
• Subjects: Algorithms; Analysis; Benchmarking; Benchmarks; Brownian motion; Chaos theory; Communication; Computer and Information Sciences; Computer hackers; Computer Security; Confidentiality; Cryptography; Data encryption; Design; Digital imaging; Digital media; Eavesdropping; Encryption; Engineering and Technology; Image Processing, Computer-Assisted - methods; Methods; Motion; Multimedia communications; Physical Sciences; Research and Analysis Methods; Safety and security measures; Securities analysis; Security; Security systems; Shannon, Claude; Statistical analysis; Statistical tests; Islamabad Pakistan; Pakistan
• ISSN: 1932-6203; 1932-6203
• DOI: 10.1371/journal.pone.0225031

Information security is an important and critical subject of the current digital era. Nowadays, almost all information is digital in nature and security from hackers and eavesdroppers has become vital in civil (big giant corporations) as well as in defense organizations. One type of information in bit streams is in the form of digital images. In this article, an idea to combine Brownian motion with ternary unique orientation has been implemented which is related to random motion over time and spatial coordinates. Moreover, chaotic dynamical map has been used to add one more security level to the proposed encryption scheme. The proposed scheme is evaluated on different statistical tests and these results are compared with already existing benchmarks. The results show that the proposed algorithm has better security performances as compared to existing image enciphering schemes.