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Comment by wlesieutre | Hacker News Reader

Get a pebble! You can have TOTP codes on your wrist where it's a lot harder to lose.

Presumably similar apps available for Android Wear and Apple Watch, but those are too smart for my tastes.

Kickstarter idea: a pebble, but just as a 2FA, on your wrist.

Wasn't there some RSA authentication fob you could attach to your keys a while back? It generated keys like Google Authenticator and worked without internet thanks to the magic of RSA.

EDIT: RSA SecurID[0]

[0]: https://en.wikipedia.org/wiki/RSA_SecurID

RSA is the company, the RSA algorithm isn't involved in this product. It actually uses a TOTP [1], a variant of HOTP.

Here's the famous Blizzard authenticator in the manufacturer's original branding [2], from a competitor. There are others like this.

[1] https://en.wikipedia.org/wiki/Time-based_One-time_Password_A... [2] https://www.vasco.com/products/two-factor-authenticators/har...

Right, my mistake. I wasn't sure when I was writing the comment. When I made the edit, I forgot to change the "magic of RSA" part

Authenticator Plus[1] has an android wear view, but it goes into lockdown mode if your phone is offline. Luckily (but also insecurely) it also supports regularly backing up two factor codes to google drive with gpg encryption, for when you crack the digitizer on your phone and need to get a new phone.

   1: https://play.google.com/store/apps/details?id=com.mufri.authenticatorplus&hl=en

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