Journal of Applied Sciences ›› 2015, Vol. 33 ›› Issue (6): 655-662.doi: 10.3969/j.issn.0255-8297.2015.06.009

• Special Issue: Information Security of Multimedia Contents • Previous Articles     Next Articles

Region-Selected Image Encryption with Combination of DNA Coding and Chaos

PENG Shan, LONG Min   

  1. School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha 410014, China
  • Received:2015-06-23 Revised:2015-07-17 Online:2015-11-30 Published:2015-11-30

Abstract: A scheme for encrypting user-defined image region is proposed. The region may be chosen interactively by the user using a mouse or directly entering position parameters. Key streams are generated from a chaotic system. The image is randomly substituted based on DNA encoding. Information about the user-defined region is embedded into the encrypted image with reversible watermarking before transmission. The receiver can directly extract the region information without relying on any additional transmission. Tests and analysis show that the scheme can meet security requirements with good flexibility and practicability.

Key words: DNA encoding, image encryption, user-defined region, reversible watermarking, chaotic sequence

CLC Number: