# Identity Management Index

Users and Certificates
Find out how to add users to the Enterprise Gateway User Store, and how to import, export, and create X.509 certificates using the Certificate Store.
Attributes
Learn how to extract user attributes from various sources, including databases, LDAP directories, HTTP headers, request body, SAML Assertions, and many more. The extracted user attributes can then be used in subsequent filters for authorization and other such purposes.
Authentication
The Enterprise Gateway offers a number of different security filters that can be used to authenticate clients.
Authorization
Similarly, the Enterprise Gateway can authorize users according to their user-specific attributes (e.g. "role"), X.509 certificate attributes, SAML attribute assertions, and many more.
Kerberos
The Enterprise Gateway can act as both a Kerberos Client and a Kerberos Service.
Certificates
Discover the myriad ways that the Enterprise Gateway can validate end-users' X.509 certificates, including OCSP, CRL, XKMS, amongst others.