Benoît Libert Kenneth G. Paterson Elizabeth A. Quaglia Anonymous Broadcast Encryption: Adaptive Security and Efficient Constructions in the Standard Model. 206-224 2012 Public Key Cryptography https://doi.org/10.1007/978-3-642-30057-8_13 conf/pkc/2012 db/conf/pkc/pkc2012.html#LibertPQ12