- cross-posted to:
- technology@beehaw.org
- cross-posted to:
- technology@beehaw.org
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The problem with passkeys is that they’re essentially a halfway house to a password manager, but tied to a specific platform in ways that aren’t obvious to a user at all, and liable to easily leave them unable to access of their accounts.
Agreed, in its current state I wouldn‘t teach someone less technically inclined to solely rely on passkeys saved by the default platform if you plan on using different devices, it just leads to trouble.
If you’re going to teach someone how to deal with all of this, and all the potential pitfalls that might lock them out of your service, you almost might as well teach them how to use a cross-platform password manager
Using a password manager is still the solution. Pick one where your passkeys can be safed and most of the authors problems are solved.
The only thing that remains is how to log in if you are not on a device you own (and don’t have the password manager). The author mentions it: the QR code approach for cross device sign in. I don’t think it’s cumbersome, i think it’s actually a great and foolproof way to sign in. I have yet to find a website which implements it though (Edit: Might be my specific setup‘s fault).
QR codes are good 50% of the time; when you’re trying to log in on a pc.
The reverse case is extremely annoyingCould you elaborate? I am assuming that everbody would have the password manager on their mobile phone with them, which is used to scan the qr code. I think that’s a reasonable assumption.
I agree that if you wanted the pc to act as the authenticator (device that has the passkey) it wouldn’t work with qr codes. But is that a usecase that happens at all for average people? Does anyone login to a mobile device that you don’t own, and you only have your pc nearby and not your own mobile phone?
I’m thinking of phone recovery, where you’re trying to get all your stuff back on a new device.
With a password manager, simply logging in will get you there and until passkeys can be synced automatically just like passwords this will need to be handled somehow.I hope I am not misunderstanding you. What you are worried about is passkeys in the password manager not syncing to new devices? They are though, with password managers that support passkeys like Bitwarden, 1Password etc…
Currently using it on Bitwarden, if I log in to a new device, the passkeys are there.
You understood correctly. Seems like I missed some news on the syncing front.
It could be your browser / system that is struggling to show it. When I use my work computer and Microsoft edge, I don’t think I’ve ever had a situation where the QR code didn’t work. When I use flatpak’d Firefox on my Linux laptop, I experience more trouble, probably because of the sandboxing.
According to the device support page i should be ok, but yeah there might be something weird going on.
His “just use email” like that isn’t very obviously worse in every respect kind of undermines his whole premise.
His whole premise is undermined by him not doing any research on the topic before deciding to write a blog post. Proton passkeys for instance, are cross platform, and the ability to transfer passkeys between devices is one of the features being worked on by the other providers.
Yeah… Why are articles like this being upvoted… I expected better from lemmy
This is the “Technology” community which isn’t for people who are actually tech-savvy in any functional way, it’s just for gadget-head laymen.
It’s 260-40 atm. That sort of ratio is a very easy sign that there’s something wrong and I often don’t bother reading the article if the ratio is that high.
It’s because he has an email company he wants you to use for $100 a year lol
Yeah I didn’t understand passkeys. I’m like why is my browser asking to store them? What if I’m using another browser? Why is my password manager fighting with my browser on where to store this passkey?
I felt so uneasy.
So I decided not to use passkeys for now until I understood what’s going on.
Passkeys are unique cert pairs for each site. The site gets the public key, you keep the private to login under your account. The site never stores your private key.
To store them simply, turn off your browsers password/passkey storage. Store them in your password manager along with other sites passwords.
Sounds similar to the SSL stuff, like for GitHub and stuff. I guess the preference in that case would be my password manager as it stores my password already.
Perhaps it’s best I pay for Bitwarden premium now and use those hardware keys people are recommending.
Also thanks!
Because its the same shit. passkeys are essentially passwordless ssh certificates. we’ve had functional MFA for ssh literally since its inception.
I’m like why is my browser asking to store them? What if I’m using another browser? Why is my password manager fighting with my browser on where to store this passkey?
The answer to all of these questions is “For the exact same reason they do all these same things with passwords”
Think of a passkey as a very, very complex password that is stored on your device (or in a password manager) that you can use to log into websites with without ever having to know what the password is, and it’s never stored on the site you’re logging into, even in a hashed format, so it literally can’t be exposed in a breach.
It’s the exact same technology you use to connect securely to every website you visit, except used in reverse.
But that’s the problem isn’t it? You have no idea what the value is, your browser on your laptop or phone you are going to lose/eeplace/reset does. Password managers are still not well understood or used by the masses and browsers stepping in here is a recipe for disaster
With chrome and Firefox maybe the user is syncing them with a profile. But that profile is also probably using a passkey on that very browser. A regular user is going to walk face first into this.
Just. Use. A. Fucking. Password. Manager.
It isn’t hard. People act like getting users to remember one password isn’t how it’s done already anyway. At least TFAing a password manager is way fucking easier than hoping every service they log into with “password123” has it’s own TFA. And since nearly every site uses shit TFA like a text or email message, it’s even better since they can use a Yubikey very easily instead.
Passkeys are a solution looking for a problem that hasn’t been solved already, and doing it badly.
Yes, use a password manager to store your passkeys.
Passkeys are a solution looking for a problem that hasn’t been solved already, and doing it badly.
You say that and then
hoping every service they log into with “password123” has it’s own TFA. And since nearly every site uses shit TFA like a text or email message
That’s literally a problem passkeys solve and password managers don’t lol
I make the assumption people are using the password managers like they should, which is generating unique, complex passwords, which is kinda the point. Once you hit a certain number of characters on a random password, you might as well not try. And passkeys don’t solve any sort of MFA problem, same as passwords.
And tell me something, do you realize how cunty you come off when you end a comment with “lol”?
And passkeys don’t solve any sort of MFA problem
They do in fact solve this problem. Passkeys are something you have, and are secured by something you know, or something you are.
They also solve an age-old problem with passwords, which is that regardless of how complex your password is, it can be compromised in a breach. Because you have no say in how a company stores your password. And if that company doesn’t offer 2FA or only offers sms or email verification, then you’re even more at risk. This problem doesn’t exist with passkeys.
Edit: lol
it can be compromised in a breach
Sure, and then that one password is compromised. Password managers make it trivial to use unique passwords for every service, so if a service is breached, you’re basically as screwed with passwords as passkeys.
The switching cost here is high, and the security benefits are marginal in practice IMO. I’m not against passkeys, but it should be something password managers handle, and I don’t have a strong preference between TOTP baked into your PW manager and passkeys.
Sure, and then that one password is compromised.
Which means that entire service you used that password to login to is compromised. If you were using passkeys however, you would have nothing compromised.
so if a service is breached, you’re basically as screwed with passwords as passkeys.
No… with a passkey you would be not screwed at all. You’d be entirely unaffected.
the security benefits are marginal in practice
I mean in your own example that’s a reduction of 100%. That’s kind of a huge difference.
that entire service you used that password to login to is compromised
If the password is compromised, it means the service is compromised and the password isn’t really protecting anything anymore. So to me, there’s no functional difference between passwords and passkeys once a service is compromised, the data is already leaked. If I’m using proper MFA, there’s no rush to reset my PW unless the service has a stupid “backdoor” that can just bypass MFA entirely, in which case passkeys wouldn’t help either (attackers would just use the backdoor).
The main value of passkeys, AFAICT, is that they’re immune to phishing attacks. Other than that, they’re equivalent to TOTP + random password, so a password manager that supports both provides nearly equivalent security to a passkey (assuming the service follows standards like storing salted hashes). And honestly, if you use a solid form of TOTP (i.e. an app, not text or email), password security isn’t nearly as critical since you can make up for it by improving the TOTP vault security.
I honestly haven’t bothered setting up passkeys anywhere, because I don’t see any real security benefit. If a service provides passkeys, it probably already supported decent MFA and random passwords. The services that should upgrade won’t, because they’ve already shown they don’t care about security by not providing decent MFA options.
In short:
- passkeys > passwords
- passkeys == random passwords + TOTP
The venn diagram of companies that support passkeys and companies that supported/support random passwords + TOTP is essentially a circle, with the former enclosed in the latter. So I don’t really see any rush to “upgrade.”
Not even close. To be honest you’re operating on so many incorrect assumptions and have such a lack of general knowledge of common attack surfaces or even the average scope of modern breaches, that digging you out of this hole would take so much more than what I can fit in a single comment.
So
If the password is compromised, it means the service is compromised and the password isn’t really protecting anything anymore
No… just no. That isn’t how it works. In reality, what commonly happens is metadata around the service is what’s targeted and compromised. So your password, email, and other data like that are what’s stolen. Maybe in plain text, maybe something hashed that a malicious actor can brute force offline without you knowing. If you’re someone using a password in this situation, your password is then used to access your account, and that actor can do any number of things while masquerading as you, potentially entirely undetected. If you’re using a passkey on the other hand, this isn’t even something you need to worry about. They cannot get access to your passkey because the service doesn’t even have it. You are entirely immune. That is something that no amount of Passwords or bolt-ons will fix.
This is the main value of passkeys, they are not shared secrets. Not only is that a huge difference, it’s the single largest paradigm shift possible. The secondary value of passkeys is that they are immune to phishing. This is also huge, as phishing is hands down the most successful way to break into someone’s account, and happens to even the most security conscious people. If a cybersecurity researchers who write books on the topic can be phished, so too can a layman such as yourself. Hand waving away a phishing immune authentication system is unhinged behavior. And it goes to show you’re not even coming from a place of curiosity or even ignorance, but likely misinformation.
In short:
- Passkeys > Passwords
- Passkeys > Random Passwords + TOTP.
You’re looking at this from the perspective of an educated end user. You’re pretty secure already from some common attack vectors. You’re also in the minority. Passkeys are largely about the health of the entire ecosystem. Not only do they protect against credentials being stolen, they also protect against phishing attacks because identity verification is built in. That is of huge value if you’re administering a site. Yes if everyone used a password manager there would be less value, but only about a third of users do that. And as an admin you can’t just say “well that guy got phished but it’s his own fault for not using a password manager.”
Password managers have only really taken off in the last half-decade, so one-third is kind of to be expected. I know they’ve been around a long time, but major adoption has been recent.
Passkeys will take a while to get wide adoption as well, especially with syncing problems that we’ve seen.
Password managers are never going to hit anywhere near 100% adoption rate. It requires knowledge on the part of the user and in many cases money. No grandma isn’t going to roll her own with keepass. Most likely she’ll never even know what a password manager is. And as long as those users are still out there, admins still have to deal with all the problems they bring.
Incidentally I looked and it’s been over a decade since I started using my first password manager. They’re not that new.
I have a sub to dashlane that came with ten additional subs and despite trying to literally give them away to family and friends and you’d think I was trying to pull teeth.
Password managers are too hard for the boomers
There was a related news recently, that bitwarden and other pw managers will be able to sync passkeys between devices. Won’t that solve these issues?
My thoughts exactly. I use Bitwarden and passkeys sync flawlessly between my devices. Password managers tied to a a device or ecosystem are stupid and people shouldn’t use them. This is true whether you use passwords or passkeys.
That said, we cannot blame users for bad UX that some platforms and some devs provide.
Isn’t your password manager tied to an ecosystem with Bitwarden ?
I’m surprised people trust third parties to hold their passwords.
Wasn’t there multiple password managers that got powned over the years ?
If you can sync Passwords you are also more exposed than some unhandy secure local password storage.
Wasn’t there multiple password managers that got powned over the years ?
Pretty much only LastPass
I can use bitwarden on Windows, Linux, Mac, iOS, Android, on desktop app or using CLI. That’s a stark difference in comparison with built in Microsoft or Apple keychains. And yes, I trust Bitwarden.
Bitwarden is not usable on Linux desktop, keeps asking for password. The password can’t be too short, so it takes some time to type it in. I turn off my computer when it’s not needed, so I would just need to type in the password when I turn it on again.
Anyone have a better solution?
Is “keeps asking for the password” the definition of “unusable on Linux”?
I have zero issue using this on Linux fwiw; yes, I am asked for password again on BW when I reboot/start my system. That is not inconvenient to me.
Yes, because it doesn’t have biometric support on Linux
The fingerprint doesn’t work on Linux last time I tried
I think its a recent addition (08/2024) on Linux.
Add support for biometric unlock on Linux
A better solution is to disable vault lock. It is very much usable (mostly talking about browser extension).
Not in all situations. And in a way a user will not be aware of. The service or website can define what type of passkey is allowed (based in attestation). You may not be able to acutally use your “movable” keys because someone else decided so. You will not notice this until you actually face such a service. And when that happens, you can be sure that the average user will not understand what ia going on. Not all passkeys are equal, but that fact is hidden from the user.
I remain hopeful. Initially, when Keypass wanted to include a simple export option there was talk of banning them from using Passkeys.
It does*.
However when I’m trying to login with a passkey in my mobile browser, Bitwarden prompt isn’t showing up. I don’t know what’s wrong.
If you’re using Android it’s more than likely just an OS issue. I have had a lot of issues on my phone trying to use passkeys let alone just the password manager.
One of many reasons I hate android. In my experience the integration with technology: late and poorly polished, early and kneecapped, initially available then removed, or non-existent.
I think its partly the fragmentation in the Android community and mostly Google’s influence.
That’s weird, it works for me. Is there something you need to click on the mobile site?
What’s your browser-Bitwarden setup?
The same flow works for me on desktop (firefox+bw plugin).
I’ve found on my android phone that the bitwarden prompt comes up more reliably if I tap on the password field instead of the username field.
This might be true, but I’m talking about passkeys, that never work :(
This article is FUD from big password.
If we all had big passwords, this may not have been an issue to begin with lol
Probably, but the real problem has been database dumps for a good number of years now. Maybe this thing fixes that?
That is true. That has been, and (for some dumb reason) continues to be, a real problem.
All the major password managers store passkeys now. I have every passkey I’ve been able to make stored in Bitwarden, and they’re accessible on all my devices.
Article is behind the times, and this dude was wrong to “rip out” passkeys as an option.
That’s a typical DHH article, essentially. He has some interesting insights, but everything else is borderline cult-leader opinions, and some people follow it as gospel
I feel like if DHH hadn’t picked Ruby on Rails it and standalone Ruby would be much more popular today.
If a password manager stores passkeys, how is that much different than just using a password manager with passwords?
Storing passwords in a password manager is storing a shared secret where you can only control the security on your end and thus is still vulnerable to theft in a breach, negligence on the part of the party you’ve shared it with, phishing, man in the middle potentially, etc.
Storing a passkey in a password manager on the other hand is storing an unshared secret that nobody but you has access to, doesn’t leave your device during use, is highly phishing resistant, can’t be mishandled by the sites you use it to connect to etc.
Can you elaborate a bit more? If I create a passkey on https://passkeys.io on my Mac, then store the passkey in a password manager like Bitwarden, I can log into that site on my phone. I was kinda under the impression that Bitwarden stored the private key on their servers, so if their site gets hacked, then the attacker has access to my passkey.io account?
Your vault is encrypted on your device before it’s sent to Bitwarden’s servers, so even they don’t have access to your passwords and passkeys.
More info on how it is encrypted is here:
https://bitwarden.com/help/what-encryption-is-used/
Pretty much every password manager works like this. Having access to your data would be a liability for them.
Bitwarden stores your passkeys on your local device. It can sync the passkey between devices but that’s end to end encrypted, bitwarden never has access to any of your passkeys or even your passwords.
I need to sync my passkeys between all my devices–which really means I need keepass to store the private keys in its DB so I can sync it with all the other keepass-compatible apps I use in various places. Last I looked, this wasn’t solved, but it’s been a minute. I’m certainly not using a centralized password manager unless they all can freely import and export from one another. I understand this is a “being worked on” problem.
So someday, yes.
Isn’t the sync for keepass-compatible apps just syncing a normal file?
Yes, it is. I just need to know that the passkeys are in that file and that all the apps I use to read that file support them.
Passkeys are also weirdly complex for the end user too, you can’t just share passkey between your devices like you can with a password, there’s very little to no documentation about what you do if you lose access to the passkeys too.
you can’t just share passkey between your devices like you can with a password
Either you enroll a system that shares them between devices without the need for special interaction (password manager, iCloud etc) or you enroll each device separately into your account.
You can have more than one passkey for a service. This is a good thing.
Gotcha, that makes more sense when explained that way!
I think that passkeys are simple, but no-one explains what they do and don’t do in specific terms.
Someone compared it to generating private/public key pairs on each device you set up, which helps me a bit, but I recently set up a passkey on a new laptop when offered and it seemed to replace the option to use my phone as a passkey for the same site (which had worked), and was asking me to scan a QR code with my phone to set it up again.
So I don’t know what went on behind the scenes there at all.
The passkey on your phone stopped working when you set one up on your laptop? I would expect the site to allow one per device instead of one per account.
It seemed that way, it asked me to scan a QR code on my phone to link it, which didn’t happen before.
Or maybe the option to use my phone was some older auth method, where I’d use the fingerprint reader on the phone to confirm a login on the laptop. I thought that was a passkey, but that doesn’t fit with what I’m reading about what it does now.
The only way I ever used passkeys is with bitwarden, and there you are sharing them between all bitwarden clients.
From my very limited experience, pass key allows to login faster and more reliable compared to letting bitwarden enter passwords and 2fa keys into the forms, but I still have the password and 2fa key stored in bitwarden as a backup in case passkey breaks.
To me, hardware tokens or passkeys are not there to replace passwords, but to offer a faster and more convenient login alternative. I do not want to rely on specific hardware (hardware token, mobile phone, etc.), because those can get stolen or lost.
Interesting, maybe I’ll give it a try. I didn’t know they could just be synced between devices on bitwarden.
you can’t just share passkey between your devices like you can with a password
You would just sign into your password manager or browser on both devices and have access to them?
Additionally, whatever app or service you’re storing them in can provide sharing features, like how Apple allows you to share them with groups or via AirDrop.
there’s very little to no documentation about what you do if you lose access to the passkeys too.
If you lose your password, there are recovery options available on almost all accounts. Nothing about passkeys means the normal account recovery processes no longer apply.
You would just sign into your password manager or browser on both devices and have access to them?
Does it work like that? Everything I see says they’re tied to that device.
If you lose your password, there are recovery options available on almost all accounts.
Fair, I guess I’ve never lost a password because it’s just a text string in my PW manager, not some auth process that can fail if things don’t work just right.
Does it work like that? Everything I see says they’re tied to that device.
It depends on what kind you want to use. If you want the most security, you can store them on something like a Yubikey, with it only being on that device and not exportable. If you get a new device, you’ll need to add that new device to your accounts. For less security but more convenience, you can have them stored in a password manager that can be synced to some service (self-hosted or in the cloud) or has a database file that can be copied.
Fair, I guess I’ve never lost a password because it’s just a text string in my PW manager, not some auth process that can fail if things don’t work just right.
That’s fair. It can be a bit of a mess with different browser, OS, and password manager support and their interactions but it has continued to get better as there is more adoption and development.
I’m excited to see where it is in another year or so, the idea of using public/private keys for logins is neat for sure.
I have never understood the goal of passkeys. Skipping 2FA seems like a security issue and storing passkeys in my password manager is like storing 2FA keys on it: the whole point is that I should check on 2 devices, and my phone is probably the most secure of them all.
I love storing 2FA in the password manager, and I use a separate 2FA to unlock the password manager
I imagine you keep your password manager unlocked, or as not requiring 2FA on trusted devices then? Re entering 2FA each session is annoying
You still have the treat of viruses or similar. If someone gets access on your device while the password manager is unlocked (ex: some trojan on your computer), you’re completely cooked. If anything it makes it worse than not having 2FA at all.
If you can access your password manager without using 2FA on your phone and have the built in phone biometrics to open it like phone pin, finger or face, someone stealing your phone can do some damage. (Well, the same stands for a regular 2FA app, but meh, I just don’t see an improvement)
I went to see HR a month ago and they had a post-it of their password for their password manager. We use passkeys too.
And this was after security training.
It feels like the goal is to get you married to one platform, and the big players are happy for that to be them. As someone who’s used Keepass for over a decade, the whole thing seems less flexible than my janky open source setup, and certainly worse than a paid/for profit solution like bitwarden.
I find phones the least secure devices simply because of how likely they are to be damaged or stolen
More than that. You probably use them in public, where there are tons of cameras. So if you forget you phone in say a restaurant, odds are they have video of you unlocking it.
And let’s not forget all the poorly secured wifi access points people commonly connect to…
That was my take too.
Security training was something you know, and something you have.
You know your password, and you have a device that can receive another way to authorize. So you can lose one and not be compromised.
Passkeys just skip that “something you have”. So you lose your password manager, and they have both?
I wish all sites using 2FA would just support hardware keys instead of authenticator apps. It’s so much easier to login to a site by just plugging in my hardware key and tapping its button, than going to my authenticator app and typing over some code within a certain time.
It’s even sinpler than email 2fa or sms 2fa or vendor app 2fa.
For authenticator app you also can’t easily add more devices unless you share the database which is bad for security. For hardware security key you can just add the key as an additional 2fa, if the site allows it.
Agreed, my main issues with hardware keys are that so few sites support them, and the OS support is kinda bad like in Windows the window pops up underneath everything and sometimes requires a pin entered.
I also hate that when I last looked nobody made a key that supports USB-C, USB-A, and NFC. So now I’ve got an awkward adapter I need to carry on my keychain.
Yeah it’s truly a shame almost no site other than google and github support hardware security keys.
For your case you would probably want a yubikey 5c and then a usb c to usb a adapter yeah. I wish for a usb a and c and nfc as well.
I’ve got one each of the USB-C and USB-A versions. The USB-A is actually the one that lives on my keychain as the connector is more robust against debris and I was able to find an adapter that is on a lanyard.
Why does anyone still give a fuck what DHH has to say any more?
Rails is a ghetto has been a thing for over a decade, and the man is basically just a tech contrarian at this point.
Whatever way the world is moving, expect DHH to have a different opinion about it.
Random email auth is some thought leadering for sure.
I disagree with most of those arguments in the article… Additionally, there is nearly no passkey using service that does require you to still have PW and 2FA login active even if you use passkeys
We are right now in the learning/testing phase. It is not a flip and suddenly only passkey work. Transition to passkey only will be a very long time, like it was for 2FA, like, my girlfriend has it on, only at about 2 services, lol.
The main problem I have is, that people without knowledge get grabbed into walled gardens using passkeys. People with knowledge know that you can use alternative apps for passkeys, like proton or strongbox (keepass).
I just wish that companies enabling passkeys would still allow password+MFA. There are several sites that, when you enable passkeys, lock you out of MFA for devices that lack a biometric second factor of authentication. I’d love to use passkeys + biometrics otherwise, since I’ve often felt that the auth problem would be best solved with asymmetric cryptography.
EDIT: I meant to say “would still allow passkeys+MFA.” hooray for sleep deprivation lol.
If companies still allowed you to login via password then any benefit you get from Passkeys would be null and void. In order to implement passkeys properly you have to disable password authentication.
The thing is it’s then on you to secure your passkey with biometrics or a password or whatever you prefer. Your phone most likely will use biometrics by default. If you’re on Mac or PC you’ll need to buy a thumbprint scanner or use camera-based window hello / secure enclave
I just don’t get why I can’t use something like TOTP from my phone or a key fob when logging in with a passkey from my desktop. Why does my second factor have to be an on-device biometrically protected keystore? The sites I’m thinking of currently support TOTP when using passwords, so why can’t they support the same thing when using passkeys? I don’t want to place all my trust in the security of my keystore. I like that I have to unlock my phone to get a TOTP. Someone would have to compromise my local keystore and my phone, which makes it a better second factor in my opinion.
EDIT: like, at work, I ssh to servers all over the damn place using an ssh key. I have to get to those servers through a jump box that requires me to unlock my phone and provide a biometric second factor before it will allow me through. That’s asymmetric cryptography + a second factor of authentication that’s still effective even if someone has compromised my machine and has direct access to my private key. That’s what I want from passkeys.
I have to get to those servers through a jump box that requires me to unlock my phone and provide a biometric second factor before it will allow me through.
That is also the case with passkeys, if you so choose. Though they are functionally similar to your SSH key, they don’t just allow you to utilize the key just by having it loaded onto your device. When you go to use a passkey you need to authenticate your key upon use, and you can do that biometrically. For example let’s say I have a passkey on my phone which is currently unlocked and in use. If somebody runs over and steals the phone from my hand and prevents it from locking, and then attempts to authenticate to a site using my passkey, they won’t be able to.
Right, but I can’t require a second factor on a different device that operates outside of my primary device’s trust store. I’m sure there is some way to make my desktop hit my phone up directly and ask for fingerprint auth before unlocking the local keystore, but that still depends on the security of my device and my trust store. I don’t want the second factor to be totally locked to the device I’m running on. I want the server to say, “oh, cool, here’s this passkey. It looks good, but we also need a TOTP from you before you can log in,” or “loving the passkey, but I also need you to respond to the push notification we just sent to a different device and prove your identity biometrically over there.” I don’t want my second factor to be on the same device as my primary factor. I don’t know why a passkey (potentially protected by local biometric auth) + a separate server-required second factor (TOTP or push notification to a different device or something) isn’t an option.
EDIT: I could make it so a fingerprint would decrypt my SSH key rather than what I have now (i.e. a password). That would effectively be the same number of factors as you’re describing for a passkey, and it would not be good enough for my organization’s security model, nor would it be good enough for me.
I mean you don’t have to authenticate your passkey with biometrics, you can use a password.
I guess I’m not really picking up on what the benefit is you’re going for. You already have a What You Have and a What You Know or What You Are, and you want a second What You Also Have thrown in there. I mean, I guess having that as an option couldn’t hurt. but I also don’t think it’s really necessary.
Passkeys are already more secure than what you’re doing now. If what you’re aiming for is for them to be even more secure than that, then that’s an admirable goal. But as of right now they are worth it just for the fact that they’re more secure than existing solutions.
I am very shitty on security (I would not write this reply on a post on the cybersecurity community), and I resisted MFA for several years as being too annoying having to login to mail/SMS. After finding open source apps supporting TOTP, I feel better about it and I manually do the syncing by just transferring the secrets between my devices offline.
Passkeys are another foreign thing that I think I will get used to eventually, but for now there are too many holes in support, too much vendor lock-in (which was my main distaste for MFA, I didn’t want MS or Google Authenticator), and cumbersome (when email and SMS were the only options for MFA, difficulty of portability for passkeys).
So the problems you have with them are already solved, in the exact same ways they were solved for password/MFA. If you let Apple manage everything for you, it doesn’t matter whether you’re using passwords or passkeys, you’re locked in either way. But you always have the option to manage your passkeys manually (just like you’re doing with your TOTP) or using a third party cross-platform solution that allows for passkey import and export.
I’m not gonna lie I still don’t understand how passkeys work, or how they’re different from 2fa. I’m just entering a PIN and it’s ok somehow? I don’t get it.
It uses asymmetric cryptography. You sign a login request with the locally stored private key and the service verifies the signature with their stored public key. The PIN on your device is used to unlock access to the private key to sign the login request.
So isn’t the pin now the weakest link and shorter than a password
Typically in most situations where a PIN is used on a modern device, it is not just the number you enter but some kind of hardware backing that is limited to the local device and also does things like rate limiting attempts.
The passkey stored locally in some kind of hardware backed store on your device or in your password manager is the first factor: something you have.
The PIN/password or fingerprint/face to unlock the device and access the stored passkey is the second factor: something you know or something you are, respectively.
Two factors gets you to 2FA.
If you’ve ever used ssh it’s very similar to how ssh keys work. You create a cryptographic key for the site; this is the passkey itself. When you go to “log in” the client and server exchange cryptographic challenges, which also verifies the site’s identity (so you can’t be phished…another site can’t pretend to be your bank, and there are no credentials to steal anyway). Keys are stored locally and are generally access restricted by various methods like PIN, passphrase, security key, OTP, etc. When you’re entering your PIN it’s how the OS has chosen to secure the key storage. But you’ve also already passed one of the security hurdles just by having access to that phone/computer. It is “something you have”.
So one password to access them all basically?
That’s quite a weakness.
It’'s really up to the end device (and the user of said device) to decide how much security to put around the local keys. But importantly, it also requires access to the device the passkeys are stored on which is a second factor. And notably many of the implementations of it require biometrics to unlock.
The “one password” thing is also true of password managers, of course. One thing about having one master passphrase is that if you do not have to remember 50 of them, then you can make that passphrase better then you otherwise might, plus it should be unique, which prevents one of the most common attack vectors.
So one password to access them all basically?
That’s essentially how all password managers work currently though?
True, I hoped for something better :-/
If it makes you feel better, most PINs on modern devices are hardware backed in some way (TPM, secure enclave, etc) and do things like rate limiting. They’ll lock out using a PIN if it’s entered incorrectly too many times.
If you get my master keepass password, you have all my passwords, too.
As I said to Spotlight7573 yes true, I just hoped for something better.
If you’re paranoid about this, go buy a yubikey and use that to secure your device/access to your passkeys. Being able to secure your own data instead of relying on the admin who may or may not know what they’re doing to secure the server is an advantage of passkeys.
It is 2FA. Just easier to use.
