Olivier Billet Matthew J. B. Robshaw Thomas Peyrin On Building Hash Functions from Multivariate Quadratic Equations. 82-95 2007 conf/acisp/2007 ACISP http://dx.doi.org/10.1007/978-3-540-73458-1_7 db/conf/acisp/acisp2007.html#BilletRP07