@misc{cryptoeprint:2004:231, author = {Jung Hee Cheon and Nicholas Hopper and Yongdae Kim and Ivan Osipkov}, title = {Timed-Release and Key-Insulated Public Key Encryption}, howpublished = {Cryptology ePrint Archive, Report 2004/231}, year = {2004}, url = {http://eprint.iacr.org/2004/231}, }