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通信系统所追求的主要性能指标之一是它的保密性,话音信号和数字信号一样,不同密级的通信,其保密等级不同.高等级的保密通信,有必要也应该重投资金,而对其复杂性、灵活性和体积重量等方面应放宽条件,以便对付具有一定破译手段和设备的对手.而战术级的围歼、追捕战斗,对手一般是不具备破译手段的罪犯,即使具有某些破译条件,只要在有限的时间内保密通信未被攻破,则已达到保密目的.因为耗时过限的破译没有价值.本文从保密学角度说明话音保密通信的组成,给出实际的话路加密系统原理,阐述其硬件、软件设计思想.
One of the key performance indicators pursued by a communication system is its confidentiality, as is the case for voice signals and digital signals, and for different levels of communication, the levels of security are different.High-level secure communication makes it necessary and desirable to re-invest funds Complexity, flexibility and volume and weight should be relaxed in order to deal with a certain opponent with the means of deciphering and equipment.While the tactical level to annihilate, chase and fight, the opponent is generally not a means of deciphering criminals, even with some deciphering conditions , As long as the confidential communication is not compromised within a limited time, the purpose of confidentiality has been reached because the time-consuming deciphering has no value.This paper describes the composition of voice-secured communication from the perspective of secrecy, gives the actual voice encryption system principle, Describe its hardware and software design ideas.