This crypto is a translation from the one used in Drupal CMS for user authentification.
Add crypto provider to transition from Drupal user accounts
Add drupal crypto to loading path
This is good, but I think this should be a separate gem, not sure I want to start supporting every transition strategy. I know we support a few, which will most likely be extracted when / if this gem gets rewritten.
Ok, be it so I'll edit the gem's name so people are aware. Thanks!