对两类无证书签名方案的密码学分析-免费论文 Key words：certificateless signature； public-key replacement attack proxy signature；摘 要： Xu 等提出的无证书签名方案和 Fan 的无证书代理签[gap=142]关键词：无...
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In Asiacrypt 2003,the concept of certificateless signature scheme was introduced. In this new paradigm,the necessity of certificates has been successfully removed and the key escrow problem does not exist.
在2003年Asiacrypt上无证书签名的概念被提出，采用这种签名机制不仅无需证书，而且也解决了密钥托管的问题。
参考来源 - 期刊学术社区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.
在k-CAA和Inv-CDH困难假设下提出了一个可证明安全的无证书签名方案。
参考来源 - 数字签名技术的若干问题研究·2,447,543篇论文数据，部分数据来源于NoteExpress
通过对一个标准模型下可证安全的无证书签名方案进行分析，指出该方案是不安全的。
A certificateless signature scheme provably secure in the standard model is analyzed. It points out that the scheme is insecure.
给出了对一个已有的高效无证书签名方案的替换公钥攻击，表明了在该方案中，攻击者可以通过替换签名者公钥伪造签名；进而针对该攻击提出了改进方案。
Through the cryptanalysis of a new threshold proxy signature scheme based on bilinear pairings, it is found that the scheme cant resist forgery attack and public-key substitute attack.
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