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本文首先介绍模拟和数字加密的基本概念,而后论述对现代电子密码机的若干要求并较详细地介绍密钥、密钥管理的若干问题。最后讨论如何正确评价和选择保密机的问题以及保密机今后发展的趋势,这些问题是保密机设计者和用户所关心的问题。
This paper first introduces the basic concepts of analog and digital encryption, and then discusses some of the requirements of modern electronic ciphers and describes in detail the key and key management issues. Finally, the issue of how to correctly evaluate and select the security machine and the future development of the security machine are discussed. These problems are the concerns of the security machine designer and user.