传真通信具有实时记录性,即可实时得到传真副本,目前有着广泛应用。为了确保传真通信的安全,一般与传真密码机配合使用。本文首先分析了传真通信的现状,提出了一种传真密码机的密码设计方案,重点对传真密码机的密钥进行了设计,提出管理措施,并对密码同步进行了研究,有效地增强了传真通信的安全稳定。 Fax communications with real-time recording, real-time fax copies can be obtained, currently has a wide range of applications. In order to ensure the safety of fax communications, usually with the use of fax ciphers. In this paper, the status quo of fax communication is analyzed firstly, and then a password design scheme of fax cipher machine is proposed. The key of fax cipher machine is designed, the management measures are put forward, the password synchronization is studied, the fax is effectively enhanced Security and stability of communications.