Another strongly unforgeable signature scheme in the standard model
Xueli Wang · Journal of Guangzhou University · 2008
In this paper,we first propose a new and more generic paradigm (than Boneh’s one) which modularly transforms any weakly unforgeable signature scheme into a strongly unforgeable one. Then,by applying the paradigm to the Waters signature scheme,we construct a new strongly unforgeable signature scheme which is provably secure under the CDH assumption over bilinear groups in the standard model. In our signature scheme,the major computation can be performed off-line and the on-line computation is very fast.