Based on the merits of the Certificateless Public Key Cryptography and combine the proxy signature, we give a proxy signature schemes and its' secure is also based on the DLP.
在结合无证书密码体制的优点与代理签名的有关知识时，本文还给出了一种代理签名的无证书数字签名。
The certificateless signature scheme can suffer from public key replacement attack so that any one can forge a valid signature on any message.
该方案能受到替换公钥攻击，以至于任何人都能对任何消息成功伪造签名。
Ring signature has high computational efficiency and strong anonymity, so the the key management can be solved by using the certificateless public key system.
而环签名具有运算效率高、匿名性强的特点，利用无证书公钥系统可解决密钥管理问题。
Because of the large amount of calculation for pairing, a partially blind signature scheme without pairing was proposed, which combined the new certificateless public key cryptosystem.
由于对运算的计算量较大，结合新的无证书的公钥密码体制，提出一种无需对运算的无证书部分盲签名方案。
This paper analyzes the security of a certificateless proxy signature scheme and shows that it is insecure against the public key replacement attack in certificateless cryptosystems.
对无证书代理签名方案进行安全性分析，指出该方案对于公钥替换攻击是不安全的，并给出具体的攻击方法。
A new efficient certificateless parallel multi-signature scheme was proposed based on the advantages of certificateless public key cryptosystem and the demands of digital multi-signature.
基于无证书公钥密码体制的优点和多重数字签名的要求，设计了一个高效的无证书并行多重签名方案。
A new efficient certificateless parallel multi-signature scheme was proposed based on the advantages of certificateless public key cryptosystem and the demands of digital multi-signature.
基于无证书公钥密码体制的优点和多重数字签名的要求，设计了一个高效的无证书并行多重签名方案。
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