Because a MAC can be computed faster than a digital signature, it is practical for transport layer security like SSL, where a large volume of data is transmitted.
由于MAC的计算要比数字签名快，因此它对于诸如ssl等数据传输量很大的传输层安全性来说是实用的。
Result Image data can be transmitted steadily to the destination in security, therefore, the time of urgent consultation can be saved.
结果影像资料数据能够安全稳定的传输到目的地，为紧急会诊节约时间。
The technology of VPN is the network security technology which is added encrypt and attestation in the process when the data is transmitted.
VPN技术就是在数据传送过程中加上了加密和认证的网络安全技术。
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