the National Natural Science Foundation of China (Nos. 61003215, 61005049, 60903178 and 61103183);the Fundamental Research Funds for the Central Universities (No. 2010B09614);the Foundation of HoHai University (No. 2084/409265)
It is important to ensure the private key secure in cryptosystem. To reduce the underlying danger caused by the private key leakage, Dodis et al. (2003) introduced the notion of key-insulated security. To handle the p...
the National Natural Science Foundation of China (Nos. 60773092,60873229,60903178 and 60672072);the Zhejiang Provincial Natural Science Foundation of China (No. Y106505);the Fundamental Research Funds for the Central Universities (No. 2010B09614);the Foundation of Hohai University (No. 2084/409265)
The only known construction of key-insulated signature(KIS) that can be proven secure in the standard model is based on the approach of using double signing. That is,the scheme requires two signatures:a signature with...
Supported by the National Natural Science Foundation ofChina (60903178)
Nowadays,indistinguishability against adaptive chosen-ciphertext attacks(IND-CCA2) has been widely accepted as a proper security criterion for encryption schemes.In this paper,an efficient conversion is proposed to ...