Journal of shanghai Jiaotong University (Science) ›› 2011, Vol. 16 ›› Issue (5): 571-576.doi: 10.1007/s12204-011-1191-7

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Certificateless Strong Key-Insulated Signature Without Random Oracles

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. (1. College of Science, Hohai University, Nanjing 210098, China; 2. Department of Computer Science, Shanghai Normal University, Shanghai 200234, China)
  2. (1. College of Science, Hohai University, Nanjing 210098, China; 2. Department of Computer Science, Shanghai Normal University, Shanghai 200234, China)
  • Received:2011-06-12 Online:2011-10-29 Published:2011-10-20
  • Contact: WAN Zhong-mei (万中美), E-mail:wan-zmei@163.com
  • Supported by:

    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)

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).

Key words:

key-insulated| key leakage| certificateless| bilinear
Pairings

摘要: 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).

关键词:

key-insulated| key leakage| certificateless| bilinear
Pairings

CLC Number: