SAML signing certificates contain a key pair that you associate with a SAML application. The private key signs the SAML responses that Identity as a Service returns to a SAML service provider for SAML authentication. You can export the signing certificate and import it into the SAML service provider to validate the signature that the SAML assertion returns.
Identity as a Service provides a default self-signed certificate. You can use this certificate or create your own. You can also replace a self-signed certificate with a certificate signed by a CA either by importing a signing key or with a certificate signing request (CSR). You need to export the certificate to integrate Identity as a Service with a SAML application.
Note: If you enable notifications (see Manage entitlement usage notifications), users receive an email when their certificates are soon to expire or are no longer valid.