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  2. C. Cid, S. Murphy, and M. Robshaw, Small scale variants of the AES, in LNCS 3557, Eds. Gilbert, H. and Handschuh, H., Springer, 2005, pp. 145-162.
  3. Carlos Cid, Sean Murphy, and Matthew Robshaw, Algebraic Aspects of the Advanced Encryption Standard, Springer, New York, 2006, pp. viii+147.[MR]