西安电子科技大学综合业务理论与关键技术国家重点实验室;西安电子科技大学通信工程学院;许昌学院信息工程学院;
回顾了密码学发展的3个阶段,从Hash函数及其应用、对称密码体制、非对称密码体制、密码学的应用以及密码学的发展趋势5个方面对现代密码学进行了系统阐述。主要介绍了面向软件的流密码SOSE-MANUK、面向硬件的流密码Grain-128以及消息认证码;公钥密码的最大特点是使用2个不同但相关的密钥将加密和解密能力分开,公钥密码算法的应用一般分为加/解密、数字签名和密钥交换3种,算法的安全性主要取决于构造算法所使用的数学问题的困难性,故设计公钥密码算法的关键是先找到一个合适的单向函数;密码学在实际生活中的应用有公钥基础设施、区块链及电子信封技术实现等,重点介绍了公钥基础设施;量子计算机的出现使得研究抗量子攻击的密码体制的重要性被提升到一个前所未有的高度,目前用于构建后量子密码系统的数学技巧主要有格、多变量方程、代数编码、Hash函数及同源问题等,主要介绍了格密码的发展。
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基本信息:
DOI：
中图分类号:TN918.1
引用信息:
[1]王保仓,贾文娟,陈艳格.密码学现状、应用及发展趋势[J].无线电通信技术,2019,45(01):1-8.
基金信息:
国家重点研发计划项目(2017YFB0802000);; 国家自然科学基金项目(61572390,U1736111);; 国家密码学发展基金项目(MMJJ20180111);; 河南省科技创新人才计划(184100510012);; 河南省高校科技创新人才计划(18HASTIT022);; 河南省创新型科技人才队伍建设工程