A Novel Approach of Image Encryption and Decryption using Coupled Chaotic System
Rekha Raj1, Salim Paul2

1Rekha Raj, Department of Electronics & Communication, SCT College of Engineering, Pappanamcode, Thiruvananthapuram (Kerala), India.
2Salim Paul, Department of Electronics and Communication, SCT College of Engineering, Pappanamcode, Thiruvananthapuram (Kerala), India.

Manuscript received on 13 June 2016 | Revised Manuscript received on 20 June 2016 | Manuscript Published on 30 June 2016 | PP: 109-112 | Volume-5 Issue-5, June 2016 | Retrieval Number: E4619065516/16©BEIESP
Open Access | Editorial and Publishing Policies | Cite | Mendeley | Indexing and Abstracting
© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Security is an important problem while transmitting information through an open network. Secure transmission can be done by encrypting the information. There are several methods of encryption. A novel encryption and decryption technique is discussed in this paper. Here the cryptosystem used is a coupled chaotic system in which two one dimensional chaotic maps are combined and used for encryption. A new algorithm is developed for the implementation of the coupled chaotic system. Security analysis and Statistical analysis show that this system can encrypt images effectively and can withstand several attacks like brute force attack, chosen plaintext attack etc
Keywords: Cipher, Coupled Chaotic System, Encryption, Decryption, Security Key, Symmetric

Scope of the Article: Image Processing