摘要
有序多重签名方案一般都是基于离散对数或身份的,存在着证书管理问题或是密钥托管问题。广义指定多个验证者签名体制允许签名的持有者指定多个签名的验证者,只有被指定的验证者可以验证签名的有效性。将无证书签名体制和广义指定多个验证者签名体制相结合,提出了无证书广义指定多个验证者有序多重签名方案及其安全模型。在随机预言模型下的安全性分析表明:该方案可以抵抗适应性选择消息攻击,其不可伪造性基于BDH困难假设。
Sequential multi-signature schemes were based on discrete logarithm problem or identity, and existed certificate management and key escrow problems. Universal designated multi-verifiers signature scheme allowed a signature holder to designate a set of signature verifiers, in such a way that only designated verifiers could verify the efficiency of the signature. Combining certificateless signature with universal designated multi-verifiers signature, certificateless universal designated muhi-verifiers sequential multi-signature scheme and its safety requirement were proposed. Security proofs based on the random oracle model indicate that this scheme can resist the adaptively select of message attack, and its security relies on the BDH assumption.
出处
《计算机应用》
CSCD
北大核心
2009年第6期1643-1645,共3页
journal of Computer Applications
基金
教育部科学技术研究重点项目(208148)
甘肃省教育厅重点项目(0801-01)
关键词
无证书
有序多重签名
广义指定多个验证者
BDH问题
certificateless
sequential multi-signature
universal designated multi-verifiers
BDH problem
