Affiliation: | aIBM, T.J. Watson Research Center, Yorktown Heights, NY 10598, USA;bNTRU Cryptosystems, Inc., 35 Nagog Park, Acton, MA 01740, USA;cCNRS/École normale supérieure, DI, 45 rue d'Ulm, 75005 Paris, France;dDepartment of Computing, Macquarie University, Sydney, NSW 2109, Australia |