DOI QR코드

DOI QR Code

A Stream Ciphering Method using a Chaotic System

  • Choi, Hyun-Jun (Department of Information and Communication Engineering, Anyang University) ;
  • Seo, Young-Ho (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Kim, Dong-Wook (Kwangwoon University)
  • 투고 : 2010.07.12
  • 심사 : 2010.07.31
  • 발행 : 2010.08.31

초록

In this paper, we presented a ciphering method whose target data is any kind of digital bit-stream. It uses a chaotic system as the main encrypting tool, MISR (Multi-Input Signature Register), and shift-and-rotation function, all of which are exclusive-ORed with the plaintext. Also, it incorporates a cipher text feedback mode such that part of the previously ciphered data is fed back to encrypt the current data. The encryption block size and the amount of feedback data are different at each ciphering operation. Experimental results with the image/video date showed that this method has enough speed and encryption effect with negligible latency time. Thus, we are expecting it to have various application areas that need high speed stream ciphering with high security level.

키워드

참고문헌

  1. W. Stallings, "Cryptography and Network Security Encryption", Prentice Hall, 2003
  2. M. Robshaw, Stream Ciphers, RSA Lab. Technical Report TR-701, RSA Lab., Redwood City, July 1995.
  3. R. Rogaway and D. Coppersmith, "A Soft-ware-oriented Encryption Algorithm", Cambridge Security Workshop, pp. 56-63, 1994.
  4. R. L. Rivest, The RC4 Encryption Algorithm, RSA Data Security Inc., March 1992.
  5. K. Klomkarn, A. Jansri, and P. Sooraksa, "A Design of Stream Cipher Based on Multi-Chaotic Functions", ISCIT2004, pp.26-29, 2004.
  6. S. Lian, J. Sun, Z. Wang, and Y. Dai, "A Fast Video Encryption Scheme Based-on Chaos", ICCARV2004, pp.126-131, 2004.
  7. Hirsch, Morris W , "Differential Equations, Dynamical Systems, and an Introduction to Chaos", Academic Pr, 2003.