摘要
针对在线/离线签名用于待签署的信息一旦被确定,就必须用极少的时间生成签名的情况,构造了两种基于双线性对的在线/离线签名方案.在标准模型下,新方案被证明是安全的.并且,在不提高总体计算量的前提下,新方案的在线阶段计算量是文献改进前方案计算量的1/4.
Online/Offline signatures are used in a particular scenario where the signer must respond quickly once the message to be signed is presented. This paper presents two online/offline signature schemes from bilinear pairings. Without the random oracle assumption, these two schemes are proved secure. Furthermore, without increasing the overall computation, the new schemes＇ online computation requires only about one fourth of that of the old schemes
出处
《广东工业大学学报》
CAS
2007年第4期63-66,共4页
Journal of Guangdong University of Technology
基金
广东省科技计划资助项目(2004B10101004)
