摘要
目前,在有限域上非奇异椭圆曲线离散对数问题还没有有效的攻击方法,使其在加密技术中得到了广泛应用。提出了一种基于双线性对和公钥自证明的认证加密方案。该方案中,用户签名前不需要进行身份认证,接收者在认证签名、恢复消息时实现通信双方的身份认证,减少了通信量。同时,该方案将自证明公钥体制推广到椭圆曲线域,同样长度的密钥具有更高的安全性,在网络通信、电子商务以及IC卡等领域具有广泛的应用前景。
The elliptic curve discrete logarithm of non-singular elliptic curve over finite field has no efficient attack up to now, which made it cannot be widely applied in cryptography, An authenticated encryption scheme based on self-certified of public key from bilinear pairings is proposed. In this scheme, there is no need to implement identity authentication before signature, both user end of communication can be authenticated during the receiver verifying signature and recovering original message, and that reduces communication traffic. This scheme is based on the elliptic curve of non-singular elliptic curve over finite field, and with its security, it can be widely used in the fields as network communication, electronic commerce and IC card.
出处
《重庆邮电大学学报（自然科学版）》
2007年第5期610-612,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项目(KJ060510)
关键词
数字签名
双线性对
认证加密
公钥自证明
digital signature
bilinear pairings
authenticated encryption
self-certified of public key
