Managing Encryption and Key Publication Independently in Digital Rights Management Systems.
Goichiro HanaokaKazuto OgawaItsuro MurotaGo OhtakeKeigo MajimaSeiichi GohshiKimiyuki OyamadaSeiichi NambaHideki ImaiPublished in: IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2004)