摘要
无证书密码体制实现无公钥证书且没有密钥托管的性质。将无证书加密方案与可验证加密方案相结合,提出了一种基于无证书的可验证加密签名方案(Certificateless Verifiably Encryption Signature scheme简称CVES),并给予该方案的正确性和不可伪造证明,该方案能有效地克服恶意签名和合谋攻击。
Certificateless cryptosystem realizes the properties of the certificateless, and the key--unescrow. So Certificateless Verifiably Encrypted Signature Scheme (CVES) was proposed, which is composed of Certificateless Encryption Scheme and Verifiably Encrypted Signature Scheme. Finally, the correctness and unforgeability of CVES was proved. This scheme can effectively overcome the malicious signature and collusion attack.
出处
《计算机科学》
CSCD
北大核心
2009年第8期105-108,共4页
Computer Science
基金
国家自然科学基金(项目编号:60773175
60673077)
广州市信息安全技术(密码学)实验室课题"无证书公钥密码系统的研究"资助
关键词
双线性对
无证书加密
可验证加密签名
不可伪造
Bilinear pairing, Certificateless cryptosystem, Verifiably encrypted signature, Unforgeability