New Constrcution of Leakage-resilient Signature in Bounded Retriveal Model
Wei Zhang · Journal of Chinese Computer Systems · 2012
Leakage-resilient cryptography is very hot in the research of cryptography.We gvie a formal definition of leakage-resilient signature,which is a extension to the standard definition of signature.We construction a new leakage-resilient signature scheme in bounded retrvieal model,and prove its security based on the standard model.Our scheme is the first leakage-resilient signature from bilinear pairings,which is combined with the characteristics of one-time signature and Waters signature.The scheme also can be improved in signature size,which overcomes the shortcoming of large signature size in one-time signature.Hence,it demonstrates a better applicability.