摘要
利用椭圆曲线上双线性映射的特性,提出了一种基于身份的签密方案。分析结果表明,该方案除了满足一般签密方案的安全性外,还满足公开验证性和前向安全性。当发送方与接收方发生争议时,任何第3方都可以验证签名的有效性,但只有指定的接收者才可以解密恢复出消息明文。
A new ID-based signcryption scheme is proposed based on the characteristics of bilinear map on elliptic curve. The analysis result shows that this scheme not only has the properties of the common signcryption scheme, but also satisfies the public verifiability and forward security. When two parties in the communication crash with each other, any third one can verify the validity of the signature, but only the receiver can recover the plaintext.
出处
《重庆邮电大学学报（自然科学版）》
2008年第6期763-765,共3页
Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)
基金
重庆市教委科学技术研究(KJ060510)
关键词
双线性映射
签密
公开验证
前向安全
bilinear map
signcryption
public verifiability
forward security
