摘要
针对目前基于身份无可信中心数字签名方案效率较低的问题,提出了一个新的基于身份无可信中心的数字签名方案,并在随机预言模型下证明该方案能抵抗适应性选择消息和身份的存在性伪造攻击。该方案与其它基于身份无可信中心签名方案相比,具有更高的效率。
A new ID-based signature scheme without a trusted party is introduced against the problem of the low efficiency of identity- based signature scheme without a trusted party. This scheme is proved secure against existential forgery on adaptively chosen message and ID attack under random oracle model. The efficiency of this scheme is higher than the other identity-based signature scheme without a trusted party.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第23期5607-5609,共3页
Computer Engineering and Design
基金
国家自然科学基金项目(60373026)
关键词
基于身份
无可信中心
签名
双线性对
随机预言模型
identity-based
non-trusted party
signature
bilinear pairings
random oracle model