# SaaS and Special hashing function

**URL:** <https://forum.keycloak.org/t/saas-and-special-hashing-function/2709>\
**Category:** Getting advice\
**Created:** [May 13, 2020, 3:16pm UTC](https://forum.keycloak.org/t/saas-and-special-hashing-function/2709 "2020-05-13T15:16:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![qutorial](https://avatars.discourse-cdn.com/v4/letter/q/f14d63/32.png) [@qutorial](https://forum.keycloak.org/u/qutorial)\
**Post date:** [May 13, 2020, 3:16pm UTC](https://forum.keycloak.org/t/saas-and-special-hashing-function/2709/1 "2020-05-13T15:16:50Z")

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Dear community, we use a special argon2-based hashing function for our customer logins.  
Could we migrate to Keycloak by providing the hashing algorithm implementation (in any language you prefer) and the database?  
Could we serve as a federated auth provider to enable Keycloak as a service?  
(I do get your right, correct? - it is not only a software but an SaaS?)