Louis Granboulan Phong Q. Nguyen Fabrice Noilhan Serge Vaudenay 57-71 2000 conf/sacrypt/2000 Selected Areas in Cryptography http://link.springer.de/link/service/series/0558/bibs/2012/20120057.htm db/conf/sacrypt/sacrypt2000.html#GranboulanNNV00