Keyring problem

[leezu]

Somehow the key with which all maui packages are signed got lost on my system. So whenever I do an apt-get update I will be greeted with an error message about a missing public key 9066E1D9C0E66C45.

Which package do I need to install to 'trust' this key again?

I believe the problem is due to netrunner-keyring being marked obsolete since recent days. It was therefore removed from my system. However I can't reinstall it, as it is now missing from the repositories..?

Thanks.