SSO Gateway for CA Siteminder, IBM Tivoli, OpenAM, ..etc.
SAML Gateway, IdP SAML Gateway, SP SAML Gateway, Okta SPGW
For instance, SSOgen acts as a Service Provider, and extends Okta SAML IdP SSO to traditional web servers that do not support SAML Authentication.
At the same time, SSOgen can act as SAML IdP for other SAML SP Applications. SAML Gateway be be either SAML IdP Gateway & SAML SP Gateway. This is also known as Okta SPGW.