Jeongdae Hong Jinil Kim Jihye Kim Matthew K. Franklin Kunsoo Park Fair Threshold Decryption with Semi-Trusted Third Parties. 309-326 2009 ACISP http://dx.doi.org/10.1007/978-3-642-02620-1_22 conf/acisp/2009 db/conf/acisp/acisp2009.html#HongKKFP09