摘要
证书管理是目前信息安全问题解决方案中应用比较广泛的PKI的瓶颈,而利用双线性配对构造的基于身份密码体制则能很好地解决这一问题.在研究各种基于配对的密码体制的基础上,认为基于配对的密码体制要想得到广泛的实际应用,必须解决下列问题:(1)必须对双线性Diffie-Hellman问题进一步研究,判断其是否为一困难问题.(2)找到更加高效的计算双线性配对的算法.(3)提出更多安全、高效的基于配对的特殊签名方案,如门限签名、代理签名等.
Certificate managing is always the bottleneck of PKI, which is the main way to resolve information security problem, but ID-based crypto system constructed by bilinear pairing can solve well. Based on the study of some based-pairing cryptosystem, we can find them must resolve the following questions: (1) Decide whether Bilinear Diffie-Hellman Problem is realy a hard question or not; (2) Find more efficient arithmitric to compute bilinear pairing; (3) Propose more secure, efficient and special signature schemes, such as threshold signature and proxy signature etc.
出处
《河南理工大学学报(自然科学版)》
CAS
2006年第3期183-186,共4页
Journal of Henan Polytechnic University(Natural Science)
基金
国家自然科学基金资助项目(90104032)