\begin{thebibliography}{MVV97}

\bibitem[BB88]{BeB88}
Pierre Beauchemin and Gilles Brassard.
\newblock A generalization of hellman's extension of shannon's approach to
  cryptography.
\newblock In Carl Pomerance, editor, {\em Proc.\ CRYPTO 87}, pages 461--461.
  Springer-Verlag, 1988.
\newblock Lecture Notes in Computer Science No.\ 293.

\bibitem[BS93]{BS93}
E.~Biham and A.~Shamir.
\newblock {\em A Differential Cryptanalysis of the Data Encryption Standard}.
\newblock Springer-Verlag, 1993.

\bibitem[dB88]{Bo88}
Bert den Boer.
\newblock Cryptanalysis of~{F.E.A.L.}
\newblock In Christoph~G. G{\"u}nther, editor, {\em Advances in
  Cryptology---{EUROCRYPT}~88}, volume 330 of {\em Lecture Notes in Computer
  Science}, pages 293--299. Springer-Verlag, 25--27~May 1988.

\bibitem[Hel80]{He80}
M.~E. Hellman.
\newblock A cryptanalytic time-memory trade off.
\newblock {\em IEEE Transactions on Information Theory}, IT-26:401--406, 1980.

\bibitem[Mat94]{Ma93}
M.~Matsui.
\newblock Linear cryptanalysis method for {DES} cipher.
\newblock {\em Lecture Notes in Computer Science}, 765:386--397, 1994.

\bibitem[Mur90]{Mu90}
S.~Murphy.
\newblock The cryptoanalysis of {FEAL}-4 with 20 chosen plaintexts.
\newblock {\em Journal of Cryptology}, 2:145--154, 1990.

\bibitem[MVV97]{MOV97}
A.~J. (Alfred~J.) Menezes, Paul~C. {Van Oorschot}, and Scott~A. Vanstone.
\newblock {\em Handbook of applied cryptography}.
\newblock The CRC Press series on discrete mathematics and its applications.
  CRC Press, 2000 N.W. Corporate Blvd., Boca Raton, FL 33431-9868, USA, 1997.

\bibitem[NBS93]{NBS93}
Data encryption standard (des).
\newblock Technical Report FIPS PUB 46-2, National Bureau of Standards, 1993.

\bibitem[NIS80]{NIST80}
Des modes of operation.
\newblock Technical Report FIPS PUB 81, National Institute of Standards and
  Technology, december 1980.

\bibitem[NIS99]{NIST99}
http://www.nist.gov/aes/, 1999.

\bibitem[Sha48]{Sh48}
C.~E. Shannon.
\newblock A mathematical theory of communication.
\newblock volume~27, pages 379--423, 623--656, 1948.

\bibitem[Sta99]{St99}
William Stallings.
\newblock {\em Cryptography and network security: principles and practice}.
\newblock Pren{\-}tice-Hall, Inc., Upper Saddle River, NJ 07458, USA, second
  edition, 1999.

\bibitem[Sti95]{St95}
Douglas~R. Stinson.
\newblock {\em Cryptography Theory and Practice}.
\newblock CRC Press, Boca Raton, 1995.

\bibitem[VK84]{VK84}
V.~L. Voydock and S.~T. Kent.
\newblock Security mechanisms in a transport layer protocol.
\newblock {\em Computer Networks}, 8:433--450, 1984.

\end{thebibliography}
