收稿日期: 2014-08-27
修回日期: 2015-05-06
网络出版日期: 2015-09-15
基金资助
国家自然科学基金(61303247)和国家863计划项目(2012AA01A403)资助
Efficient attribute-based signature with constant signature size
Received date: 2014-08-27
Revised date: 2015-05-06
Online published: 2015-09-15
张严 , 张立武 , 张茉莉 . 常数签名长度的高效基于属性签名协议设计[J]. 中国科学院大学学报, 2015 , 32(5) : 708 -713 . DOI: 10.7523/j.issn.2095-6134.2015.05.019
As a new cryptographic tool, attribute-based signature(ABS) allows user to sign messages using his attributes. The signature could be verified to satisfy some predicate without exposing any particular attributes or identity information of the signer. These properties effectively protect user's privacy while achieving attribute-based access control. In this paper, we propose an efficient threshold attribute-based signature scheme with constant signature size and constant pairing computation during verification. The scheme has been proved to be unforgeable and unconditionally anonymous. Compared with other existing constant-size ABS schemes, our scheme is short in signature size while keeps the secret key size acceptable.
Key words： attribute-based; digital signature; efficiency
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