Title :
Securing JPEG architecture based on enhanced chaotic hill cipher algorithm
Author :
Hamissa, Ghada ; Abdelkader, Hatem ; Sarhan, Amany ; Fahmy, Mahmoud
Author_Institution :
Electr. Eng. Dept., KFS Univ., Kafr-Elsheikh, Egypt
fDate :
Nov. 29 2011-Dec. 1 2011
Abstract :
In the last two decades, Chaos theory has received a great deal of attention from the cryptographic community. This paper presents two ideas. First idea is using chaotic functions to overcome the weaknesses of the classical Hill cipher. The second idea is proposing a new encoder-decoder architecture, called ChaoEncoDeco, for securing JPEG images. An extra stage of encryption is embedded within the traditional JPEG codec to improve security level of such system. This security stage uses one of the chaotic functions called Logistic Map. This map is used to enhance the Hill cipher and achieve more secure encryption key. The properties of both chaotic system and of the Hill cipher encryption key are all utilized to obtain ultimate secure systems. The proposed encryption algorithm is crypto-analyzed and compared to the standard Hill cipher algorithm. Complete evaluation for the proposed architecture is also performed which indicates the effectiveness of the proposed system.
Keywords :
chaos; image coding; public key cryptography; ChaoEncoDeco encoder-decoder architecture; JPEG architecture security; JPEG image security; chaos theory; chaotic Hill cipher algorithm; cryptoanalysis; encryption; logistic map chaotic function; Chaos; Cryptography; Image coding; PSNR; Size measurement; Time measurement; Transform coding; Chaos theory; Cryptography; Hill cipher; Image Encryption; JPEG Compression; Logistic map function;
Conference_Titel :
Computer Engineering & Systems (ICCES), 2011 International Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4577-0127-6
DOI :
10.1109/ICCES.2011.6141053