mheyder

Rails.application.config.action_dispatch.cookies_rotations.tap do |cookies|
  salt = 'authenticated encrypted cookie'
  encrypted_cookie_cipher = 'aes-256-gcm'
  
  key_generator = ActiveSupport::KeyGenerator.new(ENV['OLD_SECRET_KEY_BASE'], iterations: 1000)
  key_len = ActiveSupport::MessageEncryptor.key_len(encrypted_cookie_cipher)
  secret = key_generator.generate_key(salt, key_len)

  cookies.rotate :encrypted, secret
end