Bulk importing users from multiple apps that use different password hashing

[andrej.blesic]

Here’s my scenario - I have multiple existing apps that need to use the same universal login. Ideally I would like to bulk import all of these users into Auth0 with their existing passwords carrying over.

The issue I have is that these apps used different password hashing salts and keys. I’m having trouble finding information if Auth0 supports different hashing strategies on a per-user basis within the same DB connection.

Basically if I have User A from App A using hashing key A, and User B from App B using hashing key B, if the correct custom_password_hash data is given for the individual users during import, will Auth0 be able to verify both users’ passwords and use the different hash keys on a per-user basis? Or will I have to unify the hashing strategy for all users within the same connection?

Thanks

[dawid.matuszczyk]

Hi @andrej.blesic

Welcome to the Auht0 Community!

Thank you for posting your question. I’ve checked our documentation regarding bulk user imports, and I don’t see any obstacles to why this wouldn’t work. During bulk user import, you can granularly select an algorithm used to hash the user’s password. As long as we support the chosen algorithm you should be able to bulk import users to Auth0

Bulk User Import Database Schema and Examples

Thanks
Dawid