Tim Grembowski Roar Lien Kris Gaj Nghi Nguyen Peter Bellows Jaroslav Flidr Tom Lehman Brian Schott Comparative Analysis of the Hardware Implementations of Hash Functions SHA-1 and SHA-512. 75-89 2002 conf/isw/2002 ISC http://link.springer.de/link/service/series/0558/bibs/2433/24330075.htm db/conf/isw/isc2002.html#GrembowskiLGNBFLS02