Modified Chaotic Key-Based Algorithm for Image Encryption and its VLSI Realization

Author

Rao, K. Deergha ; Gangadhar, Ch.

Author_Institution

Osmania Univ., Hyderabad

fYear

2007

fDate

1-4 July 2007

Firstpage

439

Lastpage

442

Abstract

Chaos based encryption may offer new quality in secure data transmission. A recently proposed chaotic-key based algorithm (CKBA) has been shown to be unavoidably susceptible to chosen/known-plaintext attacks and ciphertext-only attacks. In this paper, modified chaotic-key based algorithm (MCKBA) is proposed to enhance the security of CKBA. The enhanced security of the proposed algorithm is analyzed through cryptanalysis. Further, VLSI architecture of the proposed algorithm is designed. The VLSI architecture is implemented on an image using XILINX´s ModelSim to demonstrate the effectiveness of the proposed scheme.

Keywords

VLSI; chaos; cryptography; image processing; VLSI realization; chaos based encryption; chosen/known-plaintext attacks; ciphertext-only attacks; cryptanalysis; image encryption; modified chaotic key-based algorithm; secure data transmission; Algorithm design and analysis; Chaos; Chaotic communication; Cryptography; Data communication; Data security; Navigation; Pixel; Switches; Very large scale integration; VLSI; chaos; cryptography; image decryption; image encryption;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Signal Processing, 2007 15th International Conference on

Conference_Location

Cardiff

Print_ISBN

1-4244-0881-4

Electronic_ISBN

1-4244-0882-2

Type

conf

DOI

10.1109/ICDSP.2007.4288613

Filename

4288613