计算机工程与科学2013，Vol.35Issue(3)：92-96,5.DOI:10.3969/j.issn.1007-130X.2013.03.015
标准模型下可证安全的基于身份门限环签名
Provably secure identity-based threshold ring signature in the standard model
摘要
Abstract
The (t,n) threshold ring signature can be generated by any t entities of n entities group on behalf of the whole group, while the actual signers remain anonymous. At present, the security of the i-dentity based threshold ring signature schemes are almost proven under the random oracle model, while it may be not secure for those schemes under the random oracle model. There, it is meaningful to design threshold ring signature scheme in the standard model. This paper proposes a secure and efficient identity-based threshold ring signature scheme by using bilinear pairing technique, and proves that this scheme satisfies the existential unforgeability against adaptive chosen message and identity attacks in terms of the hardness of CDH problem in the standard model. Meanwhile, it is proved that the scheme satisfies the unconditional signer ambiguity.关键词
基于身份的密码学/门限环签名/标准模型/计算Diffie-Hellman问题Key words
identity based cryptography/ threshold ring signature/ standard model/computational Dif-fie-Hellman problem分类
信息技术与安全科学引用本文复制引用
孙华,钟珞,王爱民..标准模型下可证安全的基于身份门限环签名[J].计算机工程与科学,2013,35(3):92-96,5.基金项目
国家自然科学基金资助项目(61170244) （61170244）
河南省科技厅科技攻关计划项目(112102210370) （112102210370）
河南省教育厅科学技术研究重点项目(12A520002) （12A520002）
