Skipping, Cascade, and Combined Chain Schemes for Broadcast Encryption.

Jung Hee Cheon Nam-Su Jho Myung-Hwan Kim Eun Sun Yoo Skipping, Cascade, and Combined Chain Schemes for Broadcast Encryption. 5155-5171 2008 54 IEEE Transactions on Information Theory 11 http://dx.doi.org/10.1109/TIT.2008.928959 db/journals/tit/tit54.html#CheonJKY08