本文在分析普通信道上传送保密密钥的几种现行方案的基础上,提出一种以微机密码器为基础的准一次一密保密通信体制。论证表明,该体制在通信中,达到了近于一次一密乱码本式保密体制的保密程度,几乎是不可被破译的。该方案利用现代大规模集成电路易于实现,且价格低廉,使用方便。它是一种切实可行的保密通信体制。 Based on the analysis of several current schemes for transmitting secret keys over common channels, this paper proposes a quasi-one-time secure communication system based on microcomputer coders. Argumentation shows that in the communications system, the system has reached the level of confidentiality of nearly one secret random code confidential system and can hardly be deciphered. The program is easy to use modern large-scale integrated circuits, and the price is low, easy to use. It is a practical security communication system.