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Did they improve the stories for recovery ("I lost my device") and revocation ("my device has been stolen")? As far as I knew you had to buy 2 devices to have a
by BoppreH 8y ago
Did they improve the stories for recovery ("I lost my device") and revocation ("my device has been stolen")? As far as I knew you had to buy 2 devices to have a chance of recovery, and Fido 1 explicitly said "revocation is something that needs to be resolved by each website that authenticates users", which is just asking for trouble.
I would love to have a hardware (or even phone-based) alternative to passwords, with no third-party and better privacy, but I feel like this solution only handles the happy path.
For an example of a happy-path-only system that makes me nervous, look at Google Authenticator. Recovery is made with backup codes, but they are also "resolved by each website" (https://security.stackexchange.com/questions/167563/where-to-find-google-authenticator-backup-codes https://security.stackexchange.com/questions/167563/where-to...), which often means no support at all. Not to mention having to create a new backup after creating a new account. I still use Google Authenticator myself, but I dread the day I lose my phone.
If the protocol doesn't handle recovery/authentication, the fallback is a trusted third party (e.g. email) or legal identity (e.g. scanned passport). Aside from being a huge hassle and creating a weak point, it weakens the user's privacy.
- Ajedi32 8y agoNeither of those problems (lost key, compromised key) are anything new. Why wouldn't sites just handle them the same way they currently handle revoking/resetting passwords?
- BoppreH 8y agoBecause the current way sucks. 99% of the websites (I have accounts on) rely on my email for recovery and revocation. But my inbox is not an impenetrable fortress, it's a communication channel; every device I own has access to it, and could be used as a backdoor to my entire digital life. Then there's the risk of the third-party (Google banning me, being hacked, subpoena'd, etc), the privacy factor (see the Ashley Madison leaks), the often custom code implemented by each website...
- noja 8y ago> every device I own is has access to it and this sucks. Why can't I use my google account with my tablet without it automatically getting access to gmail sync?
- krupan 8y agoSo we can't improve the current situation at all until we solve all the problems?
- BoppreH 8y agoGood point. I think these specific problems were somewhat solved by other protocols, such as SQRL, but you are absolutely right, FIDO + email is much better than password + email.
- jetrink 8y agoEvery place that I use my key gives you a set of one-time-use recovery codes. To log into your account, you can use either the key or a code. (You still need your password.) Codes can be regenerated at any time. To revoke a key, you simply remove it from your account.
- BoppreH 8y agoYou have to make sure the attacker cannot revoke your key first. If the backup code is unrevokable, then it is indeed a nice solution, albeit a high-friction one if you are doing safe backups for each new account.
- noja 8y agoCan you give a list of all these places? Gandi doesn't even have a non-human method of recovery.
- desireco42 8y agoThey should not do this, as this would make Yubico responsible for potential fraud attempts. Existing sites should do the same way they do already.
- cbhl 8y agoIt sounds like this is targeted at machines that are attached to Active Directory, in which case the fallback is the same as before (you call a help desk/sysadmin, and they "reset your password" aka verify your identity and give you a new security key).
- packet_nerd 8y ago> I still use Google Authenticator myself, but I dread the day I lose my phone. I use KeePassXC, and always add the Google auth code to both my phone and KeePassXC, and I back up my password DB (got burned big time there once....). But yeah, your point is valid. As a tech savvy guy who thinks about this stuff, it's a pain but works. But for most people manually managing and backing up multitudes of keys, passwords, and login data is just so ridiculous a thing to ask that I can't believe it's 2018 and we haven't solved this yet. There must be a better way!
- yardstick 8y agoRe Google Authenticator, as an alternative have you tried Authy? It offers a far better UX, and if you lose your phone you can easily get everything back without doing a backup/restore before hand. Plus you can run it on as many devices as you require, including desktops.
- ascorbic 8y agoI may be missing something, but Authy seems to me to break one of the main points of 2FA, which is that password breach doesn't give an attacker access to your accounts. If your Authy credentials are compromised, an attacker has access to all of your seeds and can generate codes.