Re:Two Factor Auth List
by torbjorn on Monday March 17, 2014 @05:12PM
(#7418124)
I use two factor authentication apps on my phone to generate my one time passwords. This works great for me but I always wonder what I will do if I lose my phone.
I've backed up the authenticator apps. I am correct in assuming I can restore the one time password generators from the back-ups? Is there anything else I should do?
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Re:Two Factor Auth List
by rahimnathwani on Monday March 17, 2014 @09:20PM
(#7419353)
If you have a phone and a tablet, install Google Authenticator and Authy on each, and scan the QR code with each app (a total of 4 times). As long as the clocks are in sync it will work fine, and protects access in case of:
- loss of 1 device, and - one of the apps not being available (e.g. during a stuck iOS app update)
I have used Titanium Backup to restore Google Authenticator and Battle.net Mobile Authenticator onto a different device and both apps have retained my accounts with no problem at all. So yes, you are correct in assuming that you can restore OTP generators from backups.
I can also confirm this. AS well as local, I have set Titanium Backup to send an additional (encrypted) backup to a cloud storage service as well (in my case Google Drive). I have restored from Titanium Backup many times with different ROMS and different phones.