Rosario Gennaro Stanislaw Jarecki Hugo Krawczyk Tal Rabin Secure Applications of Pedersen's Distributed Key Generation Protocol. 373-390 2003 conf/ctrsa/2003 CT-RSA http://dx.doi.org/10.1007/3-540-36563-X_26 db/conf/ctrsa/ctrsa2003.html#GennaroJKR03