Aiming at the shortcoming of digital signature based on symmetrical and dissymmetrical cryptographic system in network, the scheme of digital signature based on hybrid pattern cryptographic system is presented. 针对网络环境下信息安全技术中基于对称和非对称密码体制的数字签名技术的不足,提出了混合方式密码体制的数字签名方案;
A Dissymmetrical Social Distance& A Study of Natives 'and Outlanders' Social Network and Social Distance in Suchou 不对称的社会距离&对苏州市本地人与外地人的关系网络和社会距离的初步研究