Question

I need to convert an app authentication to self/custom authentication over devise. The existing scheme is that we have a secrete-key in our codes, salt based in database encrypted-password in database. Existing scheme is using Digest::SHA1 for encryption decryption.

What is the best way to migrate this app to Devise. I came to know that we can not decrypt SHA1 hash, so its nearly impossible to convert existing data to Devise standard BCrypt.

So how should it be possible that is use existing scheme for authentication and every thing else remains the same as came from Devise.

Answer 1

I found this a while ago. Hope it helps:

Rails Custom Authentication using Devise, DataMapper, and a Legacy Database