屏慕注入密钥是在实际使用过程中产生并正在逐步完善的,该密钥管理方法开始在远程点对点的微机保密通信中得到应用,这时,屏幕注入密钥主要注入主密钥。随着微机的普及、办公量自动化的需要,并为了充分利用现有的电话交换系统实现一对多机的点对点的远程通信。这样,如果还是一对用户终端分发一个密钥,那未,随着通信用户的不 The key injection process is actually generated and is gradually being improved. The key management method is applied in the remote point-to-point computer-based secure communication. At this moment, the key is injected into the main key. With the popularization of microcomputer, office automation needs, and in order to make full use of the existing telephone exchange system to achieve one-to-many machine point to point remote communication. In this way, if a user terminal is still distributed a key, then, with the communication user’s