Guido Bertoni Joan Daemen Michael Peeters Gilles Van Assche On the Indifferentiability of the Sponge Construction. 181-197 2008 EUROCRYPT http://dx.doi.org/10.1007/978-3-540-78967-3_11 conf/eurocrypt/2008 db/conf/eurocrypt/eurocrypt2008.html#BertoniDPA08