Paper 2015/1080

Variations to the cryptographics algorithms AES and TWOFISH

P. Freyre, N. Díaz, and O. Cuellar

Abstract

The cryptographic algorithms AES and Twofish guarantee a high diffusion by the use of fixed 4x4 MDS matrices. In this article variations to the algorithms AES and Twofish are made. They allow that the process of cipher - decipher come true with MDS matrices selected randomly from the set of all MDS matrices with the use of proposed algorithm. A new key schedule with a high diffusion is designed for the algorithm AES. Besides proposed algorithm generate new S - box that depends of the key.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Preprint.
Keywords
Block CipherAESTwofishS-boxesMDS matrix.
Contact author(s)
pfreyre @ matcom uh cu
History
2016-03-28: last of 2 revisions
2015-11-09: received
See all versions
Short URL
https://ia.cr/2015/1080
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2015/1080,
      author = {P.  Freyre and N.  Díaz and O.  Cuellar},
      title = {Variations to the cryptographics algorithms AES and TWOFISH},
      howpublished = {Cryptology ePrint Archive, Paper 2015/1080},
      year = {2015},
      note = {\url{https://eprint.iacr.org/2015/1080}},
      url = {https://eprint.iacr.org/2015/1080}
}
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