Certificateless Strong Key-Insulated Signature Without Random Oracles
WAN Zhong-mei 1(万中美), Meng Xiang-qin 1(孟祥芹), HONG Xuan2 (洪 璇)
(1. College of Science, Hohai University, Nanjing 210098, China;
2. Department of Computer Science, Shanghai Normal University, Shanghai 200234, China)
Abstract Abstract: 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 private key leakage problems in certificateless
signature schemes, we propose a new certificateless strong key-insulated
signature scheme. Our scheme has two desirable properties. First, its
security can be proved without utilizing the random oracle model. Second, it
solves the key escrow problems in identity-based key-insulated signatures (IBKISs).
the Natioal Natural Science Foundation of China (Nos. 61003215, 61005049,60903178 and 61103183), the Fundamental Research Funds for the Central Universities (No.2010B09614) and the Foundation of Hohai University (No. 2084/409265)
Corresponding Authors:
WAN Zhong-mei (万中美),
E-mail: wan-zmei@163.com
