Omniauth Swedbank

Omniauth strategy for using Swedbank as an authentication service provider.

Supported Ruby versions: 2.7+

omniauth-citadele - strategy for authenticating with Citadele
omniauth-dnb - strategy for authenticating with DNB
omniauth-nordea - strategy for authenticating with Nordea
omniauth-seb-elink - strategy for authenticating with SEB

Installation

Add these lines to your application's Gemfile (omniauth-rails_csrf_protection is required if using Rails):

gem 'omniauth-rails_csrf_protection'
gem 'omniauth-swedbank'

And then execute:

$ bundle

Or install it yourself as:

$ gem install omniauth-rails_csrf_protection omniauth-swedbank

v009 Migration

Swedbank will shut down banklink protocol v008 on 2026-06-02. See Migration Guide for details.

Usage

Here's a quick example, adding the middleware to a Rails app in config/initializers/omniauth.rb:

Rails.application.config.middleware.use OmniAuth::Builder do
  provider :swedbank,
    File.read("path/to/private.key"),
    File.read("path/to/bank.crt"),
    ENV['SWEDBANK_SND_ID'],
    ENV['SWEDBANK_REC_ID'],
    version: '009'
end

The version option defaults to '008' for backward compatibility. Set it to '009' when you're ready to migrate (requires a new bank certificate from banklink.swedbank.com).

Auth Hash

v009

{
  provider: 'swedbank',
  uid: '374042-80367',
  info: {
    full_name: 'ARNIS RAITUMS',
    country: 'LV'
  },
  extra: {
    raw_info: {
      VK_SERVICE: '3013',
      VK_VERSION: '009',
      VK_DATETIME: '2026-04-29T12:00:00+0300',
      VK_SND_ID: 'SWEDBANK_LV',
      VK_REC_ID: 'MPLMT',
      VK_NONCE: '20170425114529204413',
      VK_USER_NAME: 'ARNIS RAITUMS',
      VK_USER_ID: '374042-80367',
      VK_COUNTRY: 'LV',
      VK_OTHER: '',
      VK_TOKEN: '7',
      VK_RID: '',
      VK_MAC: 'qrEMRf6YV...',
      VK_ENCODING: 'UTF-8'
    }
  }
}

v008 (deprecated)

{
  provider: 'swedbank',
  uid: '374042-80367',
  info: {
    full_name: 'ARNIS RAITUMS'
  },
  extra: {
    raw_info: {
      VK_SERVICE: '3003',
      VK_VERSION: '008',
      VK_SND_ID: 'HP',
      VK_REC_ID: 'MPLMT',
      VK_NONCE: '20170425114529204413',
      VK_INFO: 'ISIK:090482-12549;NIMI:DACE ĀBOLA',
      VK_MAC: 'qrEMRf6YV...',
      VK_ENCODING: 'UTF-8'
    }
  }
}

Contributing

Fork it
Create your feature branch (git checkout -b my-new-feature)
Commit your changes (git commit -am 'Add some feature')
Push to the branch (git push origin my-new-feature)
Create new Pull Request