New chaotic key-based design for image encryption and decryption

Jui Cheng Yen*, Jiun-In  Guo

*Corresponding author for this work

Research output: Contribution to journalConference article

199 Scopus citations


In this paper, an image encryption/decryption algorithm and its VLSI architecture are proposed. According to a chaotic binary sequence, the gray level of each pixel is XORed or XNORed bit-by-bit to one of the two predetermined keys. Its features are as follows: 1) low computational complexity, 2) high security, and 3) no distortion. In order to implement the algorithm, its VLSI architecture with low hardware cost, high computing speed, and high hardware utilization efficiency is also designed. Moreover, the architecture of integrating the scheme with MPEG2 is proposed. Finally, simulation results are included to demonstrate its effectiveness.

Original languageEnglish
JournalProceedings - IEEE International Symposium on Circuits and Systems
StatePublished - 1 Jan 2000
EventProceedings of the IEEE 2000 Internaitonal Symposium on Circuits and Systems - Geneva, Switz
Duration: 28 May 200031 May 2000

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