• DOI:10.1007/3-540-45708-9_1
Corpus ID: 1864109

Essential Algebraic Structure within the AES

@inproceedings{Murphy2002EssentialAS,
  title={Essential Algebraic Structure within the AES},
  author={Sean Murphy and M. Robshaw},
  booktitle={CRYPTO},
  year={2002}
}

Sean Murphy, M. Robshaw

Published in CRYPTO 2002

Mathematics, Computer Science

One difficulty in the cryptanalysis of the Advanced Encryption Standard AES is the tension between operations in the two fields GF(28) and GF(2). This paper outlines a new approach that avoids this conflict. We define a new block cipher, the BES, that uses only simple algebraic operations in GF(28). Yet the AES can be regarded as being identical to the BES with a restricted message space and key space, thus enabling the AES to be realised solely using simple algebraic operations in one field GF… CONTINUE READING

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