一种基于PKI的企业即时通信安全方案

企业即时通信系统是即时通信技术在企业中的一种应用，面临计算机病毒，身份识别、
数据机密性、真实性、完整性和不可否认性等安全问题。PKI是基于公钥理论和技术的基础安全平台。本文设计了一种基于PKI的企业即时通信系统安全架构，并采用ECC公钥密码体制、IDEA对称密码体制和HASH-1消息摘要算法，给出基于该架构的EIM系统身份认证、数据加密、数字签名等安全问题的解决方案。
关键字：企业即时通信系统；PKI；身份认证；数据加密；数字签名
Abstract: Enterprise Instant Messenger(EIM) is an application of Instant Messenger on enterprise.It is facing many secure problems ,such as, computer virus, authentication，data secret, reality, integrity and undeniable ,and so on. PKI is a secure infrastructure based on public key theory and technology.This paper had designed a secure frame for Enterprise Instant Messenger based on PKI ,and had presented the solution of authentication,data encryption and digital signature based on the frame for EIM.
Key words：Enterprise Instant Messenger,PKI,Authentication,Data Encryption,
Digital Signature