›› 2011, Vol. 24 ›› Issue (3): 1-.

• Articles •     Next Articles

Chaotic Digital Image Encryption and its Hardware Implementation Based on DSP Technology

 XU Xiao-Yun, YU Si-Min, XU Li-Guo   

  1. (College of Automation,Guangdong University of Technology,Guangzhou 510006,China)
  • Online:2011-03-15 Published:2011-03-11

Abstract:

A novel method for realizing chaotic digital image encryption and its hardware implementation based on DSP is presented.By the discrete and digital process technology,the three-dimensional Lorenz chaotic system is made discrete and Lorenz chaotic iteration sequence is generated by using Hardware Description Language C and DSP technology.Red,green,and blue tricolor signals of the image are encrypted and decrypted,respectively.On the basis of the DSP exploitation platform with TMS320VC5509A chip,a gray image with an   BMP format is taken as an example.The digital image encryption and decryption algorithm using Lorenz chaotic sequence is designed,and DSP hardware implementation result is given.

Key words: Lorenz system;image encryption;DSP;chaos encryption;hardware implementation

CLC Number: 

  • TN910