| 随机预言模型下可证安全的门限FFS签名方案 |
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| 引用本文： | 肖鸿,王宏,马润年,崔捷.随机预言模型下可证安全的门限FFS签名方案[J].西安电子科技大学学报,2011,38(6):130-133,151. |
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| 作者姓名： | 肖鸿 王宏 马润年 崔捷 |
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| 作者单位： | 空军工程大学电讯工程学院;西安电子科技大学综合业务网理论及关键技术国家重点实验室;淮北师范大学计算机学院; |
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| 基金项目： | 先进计划与智能计算省部共建教育部重点实验室开放课题资助项目(ADIC2020002); 国家自然科学基金资助项目(60773121) |
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| 摘 要： | 给出了一种随机预言模型下可证适应性安全的门限FFS签名方案的严格安全性证明.在随机预言模型下,若基础的FFS签名方案在选择消息适应性攻击下是不可伪造的,且假设计算模大安全素数的离散对数问题是困难的,证明了该方案是不可伪造的、鲁棒的和适应性安全的.
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| 关 键 词： | 门限密码学 数字签名 可验证秘密共享 可证明安全 适应性安全 |
| 收稿时间： | 2011-01-22 |
Provably secure threshold FFS signature scheme in the random oracle model |
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| XIAO Hong,WANG Hong,MA Runnian,CUI Jie.Provably secure threshold FFS signature scheme in the random oracle model[J].Journal of Xidian University,2011,38(6):130-133,151. |
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| Authors: | XIAO Hong WANG Hong MA Runnian CUI Jie |
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| Affiliation: | (1. Inst. of Telecommunication Eng., Air Force Eng. Univ., Xi'an 710077， China;
2. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an 710071， China;
3. Dept. of Computer Sci. and Tech., Huaibei Normal Univ., Huaibei 235000， China) |
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| Abstract: | A rigorous security proof of a provably adaptively-secure optimal-resilience threshold Feige-Fiat-Shamir signature scheme based on strong RSA assumption is given.In the case of the random oracle model,if the basic Feige-Fiat-Shamir signature scheme is unforgeable against the adaptive chosen message attack,and computing the discrete logarithm modulo a safe prime is hard,the new scheme can be proved to be unforgeable,robust and secure against adaptive adversary. |
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| Keywords: | threshold cryptography digital signature veriable secret sharing provably secure adaptive security |
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