Variations to the cryptographics algorithms AES and TWOFISH

P.  Freyre; N.  Díaz; O.  Cuellar

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 Cipher AES Twofish S-boxes MDS 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: 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},
      url = {https://eprint.iacr.org/2015/1080}
}