1. A. Webster and S. E. Tavares, On the design of S-boxes, in H. C. Williams (Ed.): Advances in Cryptology-Proc. of CRYPTO’ 85, Springer-Verlag, NY, pp. 523–534, 1986.
2. National Institute for Standards and Technology, Data Encryption Standard (DES), FIPS PUB 46-2, US Department of Commerce, Dec. 30, 1993.
3. X. Lai, On the design and security of block ciphers, ETH Series in Info. Proc., vol. 1, Konstanz: Hartung-Gorre Verlag, 1992.
4. National Institute for Standards and Technology, DES Modes of Operation, FIPS PUB 46-2, US Department of Commerce, Dec. 2, 1980.
5. J. Reason, End-to-end Confidentiality for Continuous-media Applications in Wireless Systems, Dissertation, UC Berkeley, December 2000.