# Certificate authentication references

Find the certificate-creation reference used for Microsoft 365 app authentication. A registered app is also required, and the detailed app-registration guide remains on private hold.

!!!warning Source-derived reference
These notes were recovered from OneNote. Configuration, permissions and operating results have not been freshly verified. Confirm the applicable authority and environment before acting.
!!!

This link has the powershell required for creating the certificate [Powershell For Creating Certificate](../../access/entra/powershell-for-creating-certificate.md)

To connect to M365 using a certificate, you will also need to setup a registered App.

A detailed guide on how to set this up is in [Create and Upload Security Certificate](../../review/Review-status.md#source-93f1ad0c48054992) .

Steps 1 and 3 in that guide can be completed by [Powershell For Creating Certificate](../../access/entra/powershell-for-creating-certificate.md)

## Related guidance

- [Topic overview](Introduction.md)
- [Source review status](../../review/Review-status.md)