PKI系统加密算法应用研究

公钥基础设施（Public Key Infrastructure，简称PKI）是保障大型开放式网络环境下网络和信息系统安全的最可行措施。PKI系统能够提供公钥加密和数字签名服务，基本满足信息系统的安全性和认证应用需求。PKI系统通过应用加密算法实现数据的机密性、完整性和不可否认性的保护验证过程；因此，PKI系统可广泛应用于众多领域，便于建立和维护安全可信的网络计算环境。

Investigation in Encryption Arithmetic Applied in PKI System

Public Key Infrastructure is the most feasible measure to guarantee the security of network and information system in the large-scale open network environment.PKI system can provide service of public key encryption and numeric signature.It can meet the requirement for security and authentication basically.The system realizes the process of protection and validation by applying encryption arithmetic,which includes the confidentiality,integrality and incontestability of data.Thus the system can be used in man...