Discussion of New Padding Method in DES Encryption


DES is a kind of block cipher and before DES encryption the plain text be divided into the same-size blocks. But sometimes the plain text can’t be divided into the exactly size. So padding step is needed to pad the space of the block. The discussion of the block padding is the emphasis of this paper. A new padding method is given and at the last part of the paper the implementation of DES using new padding method is given.

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C. Liu, "Discussion of New Padding Method in DES Encryption," Journal of Software Engineering and Applications, Vol. 5 No. 12B, 2012, pp. 20-22. doi: 10.4236/jsea.2012.512B004.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Federal Information, ”DATA ENCRYPTION STAN-DARD (DES)”, . http://www.itl.nist.gov/fipspubs/fip46-2.htm
[2] J. Or-lin Grabbe, ”The DES Algorithm Illustrated”,. http://www.aci.net/kalliste/des.htm
[3] Alfred J. Me-nezes, Paul C. van Oorschot, Scott A. anstone, ”Hand-book of Applied Cryptography”,. CRC Press,1996, pp250-259
[4] Brice Schneier, ”Applied Cryptography 2ND Edition: Protocols, Algorithms and Source Code in C”,. Now York: Wiley John and Sons,1996

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