This NTP client key is used, along with the Autokey protocol, to authenticate the support.ntp.org time-server to your time-server and to guard against various attacks (e.g. server spoofing). Please see the Autokey documentation for more information about NTP Cryptography.
For more information about configuring NTP Cryptography see ConfiguringAutokey or the ntp-keyge n documentation.
Click the Download Key button to download your ntpkey or cut and paste the keyfile into your favorite text editor. Then copy this file into your ntpkeys directory.