H.J.贝克尔以Racal-Datacom公司的MA4261型语言保密机为参考基准,研究了数字语言保密的某些较新的概念。对语言进行保密,以对付非法窃听,传统的作法都是采用模拟技术。这种技术靠时间 H.J. Becker used Racal-Datacom’s MA4261 language security machine as a reference to study some of the more recent concepts of digital language secrecy. Confidentiality of the language to deal with illegal eavesdropping, the traditional practice is the use of simulation technology. This technique depends on time