A Broadcast Encryption Scheme with Free-Riders but Unconditional Security

2005 - Ulrich Greveler, Andre Adelsbach,

First International Conference on Digital Rights Management, Sydney 2005 to appear: Springer LNCS. [PDF]

Establishing a Key Hierarchy for Conditional Access without Encryption.

1996 - Jörg Schwenk,

Proc. IFIP Communications and Multimedia Security 1996, Chapman & Hall, London.