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。

youdao

The effect: faster browsing, less device power consumption and better security.

效果就是：浏览速度更快，设备功耗更低，更安全。

youdao

If the security situation continues to improve, as it did in 2008, he will argue that the Iraqis have less need for help-so the Americans can withdraw faster.

如果安全状况继续好转，就像2008年里一样，他会说伊拉克人寻求帮助的需要更少——因此美国人就能更快撤军。

youdao

This will help get through security faster.

CNN: readers share tales of terrible travel, pleasant surprises - CNN.com

There could be better, faster check-in, more or faster security lines, and airlines' ground handling companies could be incentivised to improve baggage handling speeds.

BBC: Stuck on the runway

Sales tied to its Kingsoft Internet Security business grew even faster.

FORBES: Chinese Tech Billionaire Lei Jun's Kingsoft Climbs 18% On Surge In Profit