I had a bluetooth deadbolt. I was able to give my friend a virtual key when he came to visit as I didn't have a spare for the deadbolt.
The key was encrypted based on a username and password and I could revoke it at will. It filled a need for the time he stayed at my place and worked great.
The key was encrypted based on a username and password and I could revoke it at will. It filled a need for the time he stayed at my place and worked great.