The toxic gases do harn to people's health.

有毒气体危害人们健康。

A great view of Nai harn beach yet still very private.

可以很好的看到仍然是私人的奈汉海滩。

And HARN is a tool to simulate the events from devices such as alarms, notifications and command responses.

HARN模拟器则模拟了从设备发送来的事件，例如警报、通知、命令响应等。

This paper designs a kind of mutual authentication scheme, which is based on the improved algorithm of HARN digital signature. Then it is proved by using BAN Logic.

本文设计了一种基于改进的HARN数字签名算法的双向认证方案，并利用BAN逻辑对此方案进行了验证。