隐蔽信道 meaning in Chinese

covert channel

A subliminal channel is a covert communication channel to send a message to an authorized receiver . this channel is constructed in the output crypto - data of an applied public - key cryptosystem such as digital signature , authentication , and so on . the message can not be discovered by any unauthorized receivers
阈下信道是指在基于公钥密码技术的数字签名、认证等应用密码体制的输出密码数据中建立起来的一种隐蔽信道，除指定的接收者外，任何其他人均不知道密码数据中是否有阈下消息存在。