Jia Yu Fanyu Kong Xiangguo Cheng Rong Hao Guowen Li Construction of Yet Another Forward Secure Signature Scheme Using Bilinear Maps. 83-97 2008 ProvSec http://dx.doi.org/10.1007/978-3-540-88733-1_6 conf/provsec/2008 db/conf/provsec/provsec2008.html#YuKCHL08