Universal 2nd Factor

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Universal 2nd Factor (AKA U2F) is a standard for two-factor authentication using hardware tokens.

Specifications: https://fidoalliance.org/specs/fido-u2f-v1.2-ps-20170411/fido-u2f-overview-v1.2-ps-20170411.html

Support

Browsers

Currently native in Chrome and Opera. Support in Firefox planned and currently existing using an addon (which hasn't been updated yet to a WebExtension).

See Also

  • TFA
  • rust-u2f for testing U2F support locally using an emulator
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