@misc{cryptoeprint:2013:106, author = {Roohallah Rastaghi}, title = {URDP: General Framework for Direct CCA2 Security from any Lattice-Based PKE Scheme}, howpublished = {Cryptology ePrint Archive, Report 2013/106}, year = {2013}, url = {http://eprint.iacr.org/2013/106}, }