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CLC number: TP311
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Received: 2008-10-15
Revision Accepted: 2009-10-05
Crosschecked: 2009-08-14
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Certificateless key-insulated signature without random oracles
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Zhong-mei WAN, Xue-jia LAI, Jian WENG, Sheng-li LIU, Yu LONG, Xuan HONG. Certificateless key-insulated signature without random oracles[J]. Journal of Zhejiang University Science A, 2009, 10(12): 1790-1800.
@article{title="Certificateless key-insulated signature without random oracles",
author="Zhong-mei WAN, Xue-jia LAI, Jian WENG, Sheng-li LIU, Yu LONG, Xuan HONG",
journal="Journal of Zhejiang University Science A",
volume="10",
number="12",
pages="1790-1800",
year="2009",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A0820714"
}
%0 Journal Article
%T Certificateless key-insulated signature without random oracles
%A Zhong-mei WAN
%A Xue-jia LAI
%A Jian WENG
%A Sheng-li LIU
%A Yu LONG
%A Xuan HONG
%J Journal of Zhejiang University SCIENCE A
%V 10
%N 12
%P 1790-1800
%@ 1673-565X
%D 2009
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0820714
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T1 - Certificateless key-insulated signature without random oracles
A1 - Zhong-mei WAN
A1 - Xue-jia LAI
A1 - Jian WENG
A1 - Sheng-li LIU
A1 - Yu LONG
A1 - Xuan HONG
J0 - Journal of Zhejiang University Science A
VL - 10
IS - 12
SP - 1790
EP - 1800
%@ 1673-565X
Y1 - 2009
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0820714
Abstract: Leakage of the private key has become a serious problem of menacing the cryptosystem security. To reduce the underlying danger induced by private key leakage, Dodis et al.(2003) proposed the first key-insulated signature scheme. To handle issues concerning the private key leakage in certificateless signature schemes, we devise the first certificateless key-insulated signature scheme. Our scheme applies the key-insulated mechanism to certificateless cryptography, one with neither certificate nor key escrow. We incorporate Waters (2005)’s signature scheme, Paterson and Schuldt (2006)’s identity-based signature scheme, and Liu et al.(2007)’s certificateless signature scheme to obtain a certificateless key-insulated signature scheme. Our scheme has two desirable properties. First, its security can be proved under the non-pairing-based generalized bilinear Diffie-Hellman (NGBDH) conjecture, without utilizing the random oracle model; second, it solves the key escrow problem in identity-based key-insulated signatures.
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