# Essential Algebraic Structure within the AES

@inproceedings{Murphy2002EssentialAS, title={Essential Algebraic Structure within the AES}, author={Sean Murphy and Matthew J. B. Robshaw}, booktitle={Annual International Cryptology Conference}, year={2002} }

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…

## 266 Citations

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