@misc{cryptoeprint:2010:071, author = {Didier Alqui\'e}, title = {2-round Substitution-Permutation and 3-round Feistel Networks have bad Algebraic Degree}, howpublished = {Cryptology ePrint Archive, Report 2010/071}, year = {2010}, url = {http://eprint.iacr.org/2010/071}, }