# About the Two Factor Authentication category

**URL:** <https://onlykey.discourse.group/t/about-the-two-factor-authentication-category/16>\
**Category:** Two Factor Authentication\
**Created:** [September 15, 2020, 2:31pm UTC](https://onlykey.discourse.group/t/about-the-two-factor-authentication-category/16 "2020-09-15T14:31:38Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![t11](https://avatars.discourse-cdn.com/v4/letter/t/8e7dd6/32.png) [@t11](https://onlykey.discourse.group/u/t11)\
**Post date:** [September 15, 2020, 2:31pm UTC](https://onlykey.discourse.group/t/about-the-two-factor-authentication-category/16/1 "2020-09-15T14:31:38Z")

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Discussion and support for using OnlyKey for 2FA. See [Security Key (FIDO2 / U2F)](https://docs.crp.to/usersguide.html#universal-2nd-factor-u2f), [OAUTH TOTP](https://docs.crp.to/usersguide.html#google-authenticator-totp), [Yubico OTP](https://docs.crp.to/usersguide.html#Yubico-one-time-password), and Challenge-Response.

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**Author:** ![tfmarketing](https://avatars.discourse-cdn.com/v4/letter/t/34f0e0/32.png) [@tfmarketing](https://onlykey.discourse.group/u/tfmarketing)\
**Post date:** [March 5, 2021, 12:35pm UTC](https://onlykey.discourse.group/t/about-the-two-factor-authentication-category/16/2 "2021-03-05T12:35:17Z")

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Can you backup your \*\* 2 Factor \*\* stuff somehow?  
I know the typed passwords can be backed up

Can it export the public private keys?  
Possible to make 2 keys have same public and private key? Then i can add 2 factor accounts to one device only. If its lost i could then use the second device (which i havent added accounts to) to unlock the accounts on the first (lost) device…