Jean-Sébastien Coron Helena Handschuh Marc Joye Pascal Paillier David Pointcheval Christophe Tymen Optimal Chosen-Ciphertext Secure Encryption of Arbitrary-Length Messages. 17-33 2002 conf/pkc/2002 Public Key Cryptography http://link.springer.de/link/service/series/0558/bibs/2274/22740017.htm db/conf/pkc/pkc2002.html#CoronHJPPT02