omniauth-trezor provides an OmniAuth strategy for Trezor Connect.

With this strategy your users can use popular Bitcoin Trezor to login to your website.

Add this line to your application's Gemfile:

gem 'omniauth-trezor'

And then execute:

$ bundle

Or install it yourself as:

$ gem install omniauth-trezor

In Rails app, add config/initializers/omniauth.rb:

Rails.application.config.middleware.use OmniAuth::Builder do
  provider :trezor, hosticon: "https://image.url"
end

Or, in a Sinatra app:

use OmniAuth::Builder do
  provider :trezor, hosticon: 'https://example.com/icon.png'
end

post '/auth/trezor/callback' do
  auth = request.env['omniauth.auth]
  # Use the auth info
end

These are the options you can specify that are relevant to Omniauth Trezor:

Challenge-response authentication via TREZOR. To protect against replay attacks, you must use a server-side generated and randomized challenge_hidden for every attempt. You can also provide a visual challenge that will be shown on the device.

• :visual_challenge - Text that will be shown on the device (defaults to Time.now.strftime("%Y-%m-%d %H:%M:%S"))
• :hidden_challenge - Hidden randomized hex string used to protect agains replay attacks (defaults to SecureRandom.hex(32))
• :hosticon - Optional site icon https url. Should be at least 48x48px.

After successful authentication request.env['omniauth.auth'].extra contains all data that was used to verify the signature: visual_challenge, hidden_challenge, signature and public_key for your additional needs (ie. audit log).

Please support development of this library by donating at: 1EqK3cYaeRWnzzEYTXcXsWBhukJcv5EpXQ

Bug reports and pull requests are welcome on GitHub at https://github.com/kraxnet/omniauth-trezor.

The gem is available as open source under the terms of the MIT License.