## CryptoDB

### Paper: Efficient and Provably-Secure Certificateless Short Signature Scheme from Bilinear Pairings

Authors: Hongzhen Du Qiaoyan Wen URL: http://eprint.iacr.org/2007/250 Search ePrint Search Google In this paper, we present a certificateless signature (CLS) scheme that is proved to be secure in the random oracle model under the hardness assumptions of k-CAA and Inv-CDHP. Our scheme upholds all desirable properties of previous CLS schemes, and requires general cryptographic hash functions instead of the MapToPoint hash function which is inefficient and probabilistic. Furthermore, our scheme requires less computation cost and significantly more efficient than all known CLS schemes, and the size of signatures generated by our scheme is approximate 160 bits, which is the shortest certificateless signatures so far. So it can be used widely, especially in low-bandwidth communication environments.
##### BibTeX
@misc{eprint-2007-13531,
title={Efficient and Provably-Secure Certificateless Short Signature Scheme from Bilinear Pairings},
booktitle={IACR Eprint archive},
keywords={public-key cryptography / certificateless signature, k-CAA, bilinear pairings},
url={http://eprint.iacr.org/2007/250},
note={ duhongzhen@gmail.com 13689 received 25 Jun 2007},
author={Hongzhen Du and Qiaoyan Wen},
year=2007
}