Okta Admins can upload their own SAML certificates to sign the assertion for Outbound SAML apps and to sign the AuthN request and decrypt the assertion for Inbound SAML.
Note: Okta as a SAML Service Provider is referred to as Inbound SAML. Okta as a SAML Identity Provider (IdP) is referred to as Outbound SAML.
To use your own SAML certificate, update the key credential for the affected apps or IdPs.
The general procedure is the same for both the Outbound and Inbound SAML applications. However, some of the API calls are different as described in the steps below. The general procedure contains the following seven steps:
Important: In the third step, use your own process to sign the CSR. You can't move to step four until the process is completed.
For information on using the Postman REST API test client for these steps, see Get Started with the Okta REST APIs.Next: