@misc{cryptoeprint:2009:271, author = {Rafael Dowsley and Goichiro Hanaoka and Hideki Imai and Anderson C. A. Nascimento}, title = {Reducing the Ciphertext Size of Dolev-Dwork-Naor like Public Key Cryptosystems}, howpublished = {Cryptology ePrint Archive, Report 2009/271}, year = {2009}, url = {http://eprint.iacr.org/2009/271}, }