摘要
理想格下认证密钥交换协议,如基于密钥封装机制,基于环上带误差学习或数论研究单元等理想格难题的协议,存在构造不合理、证明紧致性低以及实现效率低等问题。可考虑采用隐式认证协议设计方法、抵御小域攻击算法技巧以及高效调和技术等对其加以改进。构造强安全模型与量子随机预言机对指导协议设计十分重要。
Authentication key exchange protocols from ideal lattices, which based on keyencapsulation mechanism,and directly based on some problems such as ring learning with errors or number theory research unit, have shortcomings that their construction is not reasonable, security proof is not tightly and implementation is inefficiency. These protocols may be improved by using implicit authentication protocol design methods,techniques to resist small field attacks and efficient conciliating technique. To construct a strong security model and a quantum random oracle machine s very important for the design of these protocols.
作者
李灏
王立斌
LIHao;WANG Libin(School of Computer Science,South China Normal University,Guangzhou 510631, China)
出处
《西安邮电大学学报》
2017年第6期1-8,共8页
Journal of Xi’an University of Posts and Telecommunications
基金
广东省自然科学基金资助项目(2015A030313379)
关键词
认证密钥交换
里想格
强安全模型
量子攻击
authenticated key exchange,ideal lattices,strong security model,quantum attack
