Message information may be authenticated with error-control code, message authenticated code and digital signature.
报文信息的鉴别认证可采用差错控制码、报文鉴别码与数字签名进行。
We need choice appropriate real-time error control code in order to get low code error ratio in the process of the communication.
在通信过程中，为了要获得比较低的误码率，需要选择合适的实时差错控制方式。
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