Bitcoin Forum

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So basically, this device is used to manage passwords and OTP (One-Time Password) for 2FA authentication. I read your post and mostly what I understand is it focus more on 2FA. Even though using a authenticator such as google auth and authy are still helpful and those who got your pass and username won't do much unless they can get the OTP in your phone or devices. The Yubikey 5 NFC cost $45 and $100+ if you buy a Yubikey set if someone is interested to buy. The price is from amazon.

This sounds cool, can we import our google authenticator keys to this authenticator dongle and vice versa? do you have a video on how to use this and what is the price range just curious. If its really affordable and flexible for sure I am gonna buy it, thanks for the info.

OP already mentioned that Yubikey 5 (that he uses) supports U2F, so yeah you can use it with Google[1]. It's priced around $45 USD for a single one.

Do check the official website: https://www.yubico.com/product/yubikey-5-nfc

[1] Additional info: https://support.yubico.com/support/solutions/articles/15000006418-using-your-yubikey-with-google

I read up news, Trezor hardware wallet already has further expanded ability with a secure and comfortable two-factor authentication.

Trezor reserve as a hardware security U2F with backup/recovery functions (seed/mnemonic phrase)^[1]

https://wiki.trezor.io/images/T1_U2F_Github.jpg

disclaimer: i don't use it, you can read manual setting up trezor as 2fa hardware^[2] with your own risk

[1]. https://wiki.trezor.io/U2F
[2]. https://wiki.trezor.io/User_manual:Two-factor_Authentication_with_U2F

Here is a pretty good article explaining the main differences between TOTP and U2F.
Unlike TOTP with U2F you don't have to share a seed with the server, so it doesn't need to store it and to send it to you, and you don't have to send any symmetric code.

https://miro.medium.com/max/1539/0*nWGWoyFQ_SVN_KnZ.

https://miro.medium.com/max/1545/0*bIvDncDvMoCNxFeL.

https://blog.trezor.io/why-you-should-never-use-google-authenticator-again-e166d09d4324

Yes but unfortunately very few exchanges are currently proposing U2F authentification  :(
I've seen Binance, Coinbase and Bitfinex are offering it
https://www.binance.com/en/blog/351376985820852224/You-Can-Now-Use-Hardware-Security-Keys-on-Binance
https://blog.coinbase.com/securing-your-crypto-with-security-keys-and-webauthn-551124b72d8e
https://support.bitfinex.com/hc/en-us/articles/115003616589-Universal-2nd-Factor-U2F-2FA-Setup

But other big ones like Kraken for example are only planning to add this protocol
https://support.kraken.com/hc/en-us/articles/360001363963-Yubikey-and-2FA-device-compatibility

i just picked one of these up (yubikey 5 nfc). using google auth most places still and slowly changing over to yubi wherever i can. now that i know how easy it is, gonna grab some more, mainly the cheaper simple ones just to register as backups.

having my email and such protected by this is a great feeling. i was always worried my google auth token could be compromised during generation (screenshot or such). never happened that i know of but still.

trezor can do this too but who wants what is obviously a crypto wallet on their key chain.

I've been reading this topic and was thinking "why on earth would somebody buy this, since the hardware wallets can handle the job?" when I've finally read this.
Yep. This can be the main selling point imho.

I still believe that hardware wallets for day-to-day transactions should not have big amounts of coins on them (the big amounts can stay on another hardware or paper wallet in a safe), but they could still attract the eyes.
This device definitely deserves a second look.

they claim its immune to badusb and such, which is a necessity if youre plugging it into untrusted systems.

https://www.yubico.com/blog/yubikey-badusb/

of course DYOR

very cool, but how practical is this tho? trezors are huge comparing to the rest of the devices in the segment

I found other security keys

Yubico YubiKey 5 NFC (https://www.amazon.com/Yubico-YubiKey-USB-Authentication-Security/dp/B07HBD71HL?tag=zd-buy-button-20&acsubtag=ag%3A454dca25-f211-4de9-bd34-0d550c6fa6da%7Cvg%3A-%7Cst%3Aamp/)
Yubico Yubikey 5C (https://www.amazon.com/Yubico-YubiKey-Factor-Authentication-Security/dp/B07HBCTYP1?tag=zd-buy-button-20&acsubtag=ag%3A454dca25-f211-4de9-bd34-0d550c6fa6da%7Cvg%3A-%7Cst%3Aamp)
Yubico YubiKey 5 Nano (https://www.amazon.com/Yubico-YubiKey-USB-Authentication-Security/dp/B07HBDX2CM?tag=zd-buy-button-20&acsubtag=ag%3A454dca25-f211-4de9-bd34-0d550c6fa6da%7Cvg%3A-%7Cst%3Aamp)
CryptoTrust OnlyKey (https://www.amazon.com/OnlyKey-Stealth-Black-Case-Communication/dp/B06Y1CSRZX?tag=zd-buy-button-20&acsubtag=ag%3A454dca25-f211-4de9-bd34-0d550c6fa6da%7Cvg%3A-%7Cst%3Aamp)
Thetis Fido U2F Security Key (https://www.amazon.com/Thetis-Universal-Authentication-Protection-SalesForce/dp/B07RL99HZ6?tag=zd-buy-button-20&acsubtag=ag%3A454dca25-f211-4de9-bd34-0d550c6fa6da%7Cvg%3A-%7Cst%3Aamp)
Thetis FIDO U2F Security Key with Bluetooth (https://www.amazon.com/Thetis-Two-Factory-Authentication-Protection-Compatible/dp/B07HHLPFFZ?tag=zd-buy-button-20&acsubtag=ag%3A454dca25-f211-4de9-bd34-0d550c6fa6da%7Cvg%3A-%7Cst%3Aamp)
Google Titan Security Keys (https://store.google.com/us/product/titan_security_key?hl=en-US)
Kensington Verimark Fingerprint Key (https://www.amazon.com/Kensington-VeriMark-Fingerprint-Black-K67977WW/dp/B01NAVWPOJ?tag=zd-buy-button-20&acsubtag=ag%3A454dca25-f211-4de9-bd34-0d550c6fa6da%7Cvg%3A-%7Cst%3Aamp/)

but since I haven't yet had any experience with security keys it's hard for me to know which one is the best.

Am I right in understanding that the most functional and convenient to date is the Yubico YubiKey 5 NFC security key?


 

yes, yubico are currently leading here. i would recommend to test couple different models since they have different workflows (nfc/port)

theres also new keys with fido2 https://www.yubico.com/products/security-key/

When you see something like that theres always a thought "well this one is reported, but what if other ones just not yet"  ;D but they probably done full revision of all current lineup

Yubikey is great - I bought my first Yubikey back in 2016, but the problem is that I didn't fasten it to my keychain and ended up losing it after a couple of months. Since then, I regularly use my Trezor as a second factor. If someone is not in the know, then I remind you that any Trezor, in addition to the function of a wallet for cryptocurrencies, can be used as a second factor for authentication. Very convenient indeed.

yes, trezor is a good backup to a yubikey.

of course i like having several yubikeys for just such a situation.. lost or broken although it seems awful tough to break.

also a yubikey doesnt scream "crypto" if you use it in public for 2fa.

another advantage a yubikey has over a trezor -- no bad usb infection possible. which i believe (not entirely sure) a trezor is susceptible to.

i use both btw

I don't know, how many yubikeys were sold in total compared with Trezors?


BadUSB is unlikely, the user would have to be socially engineered to ignore bootloader warnings at every step and even after changing firmware to a malicious one. The warnings about unsigned firmware won't disappear because the bootloader is in a write-protected area. The attack would be easier to conduct if Satoshi Labs was compromised, and afaik multiple people have to sign the firmware.

yubikeys vs trezors? no hard data but id imagine yubikeys far outnumber trezors.. yubikeys can be for work, computer logins, banking, email login etc.

are we talking about the same badusb here? badusb infects the usb chip itself, not the regular firmware of the device. so no approving bad bootloader etc, it just happens without user intervention.. poof the usb controler chip in the trezor  is now compromised.. it can make the usb chip into any HID device it wants. it can emulate a keyboard for instance, and send keystrokes. or make itself look like a mass storage device and send a file. all with the trezor otherwise acting fine and with genuine firmware. as its the usb chip thats infected, not the trezor attached to the usb chip.

https://www.wired.com/2014/10/code-published-for-unfixable-usb-attack/

yubikeys dont have a usb controller chip afaik (according to yubikey anyway, its a custom deal as it doesnt need full usb functionality) so its immune.

perhaps my data is out of date?

There are several BadUSB attacks and not all controllers are vulnerable, Trezors have been pretty extensively tested/attacked/audited, none of the attacks to date involve BadUSB so I imagine it's safe in this regard.

true but the trezor allows written seed based backup of your 2fa master code (whatever you call it). it can be recreated on another trezor, if needed. once a yubikey is toast you need a another that was already registered to that account/device/whatever, or some other secondary way to get in. then delete the old hardware key and add a new one. whereas a new trezor restored with the seed acts exactly like the old one. plug it in and go.

trezor makes a great backup to a yubikey imo. both have strengths and weaknesses as far as 2FA.

Not unless a user wanted to have a more useful security key such as using Ledger and Trezor as their 2FA physical key -- in which is much expensive yet the features and use, even the security measures, can be the same level as the YubiKey but on the upper hand when it comes to being a hardware wallet as well (which is really their focus). Hence, if the user were more onto cryptocurrencies and a security-sensitive with his holdings, yet a little wanted to be secured in passwords per se, I guess Ledger and Trezor are better. (just my .69 cents)

The yubikey is small and very tight to the touch, and really has nothing to break unless it is exposed to very high temperatures. Therefore, in terms of reliability, it is great.

He is not afraid of water, he is not afraid of falls even from great heights. The same cannot be said about Trezor.

If the Trezor gets caught in heavy rain or falls into the water, then everything will be over with him. Therefore, they are both good, but each in their own area.

fresh or grey water in a trezor may not kill it if dried/cleaned properly. yubikey doesnt care of course.

but step on a trezor vs step on a yubikey. yeah no contest. but ive dropped a trezor from like 4 or 5 feet dozens of times too.

There's also a metallic one (made from aluminium), this might be fine when stepped on but it's expensive compared to every other hardware wallet on the market.

oops forgot that one. i did want a couple when i saw them too.

Special leather covers are sold for the Trezor, they certainly increase its mechanical strength, but still, in terms of strength, it loses much to the yubikey.  And i think even if the Trezor will is in a leather case and someone weighing over 200 pounds steps on it with their heels, not even a leather case will help him.

In any case, the yubikey looks much stronger and more durable than the teresor. It would be nice to get the Trezor developers to think about improving their devices a bit so that they don't look like empty plastic boxes.

It would be great if the Trezor was also completely monolithic.