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Paper 2014/461

Provably secure and efficient certificateless signature in the standard model

Lin Cheng and Qiaoyan Wen and Zhengping Jin and Hua Zhang

Abstract

Certificateless public key cryptography eliminates inherent key escrow problem in identity-based cryptography, and does not yet requires certificates as in the traditional public key infrastructure. However, most of certificateless signature schemes without random oracles have been demonstrated to be insecure. In this paper, we propose a new certificateless signature scheme and prove that our new scheme is existentially unforgeable against adaptively chosen message attack in the standard model. Performance analysis shows that our new scheme has shorter system parameters, shorter length of signature, and higher computational efficiency than the previous schemes in the standard model.

Metadata
Available format(s)
-- withdrawn --
Category
Public-key cryptography
Publication info
Preprint. MINOR revision.
Contact author(s)
stonewoods302 @ 163 com
History
2014-06-19: withdrawn
2014-06-17: received
See all versions
Short URL
https://ia.cr/2014/461
License
Creative Commons Attribution
CC BY
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