Wonil Lee Mridul Nandi Palash Sarkar Donghoon Chang Sangjin Lee Kouichi Sakurai PGV-Style Block-Cipher-Based Hash Families and Black-Box Analysis. 39-48 http://search.ieice.org/bin/summary.php?id=e88-a_1_39&category=D&year=2005&lang=E&abst= 2005 88-A IEICE Transactions 1 db/journals/ieicet/ieicet88a.html#LeeNSCLS05