@misc{cryptoeprint:2010:121, author = {Chen Huiyan and Li Zichen}, title = {Lattice-Based Public Key Cryptosystem Provably Secure against Adaptive Chosen Ciphertext Attack}, howpublished = {Cryptology ePrint Archive, Report 2010/121}, year = {2010}, url = {http://eprint.iacr.org/2010/121}, }