#### SAMLv2 Attribute Query Customization

SAMLv2 Attribute Query contains the following attributes for customization:

- NameID Format

- Cert Alias

##### NameID Format

Defines the name identifier formats supported by the attribute query provider. Name identifiers are a way for providers to communicate with each other regarding a user. Single sign-on interactions support three types of identifiers:

- An X509SubjectName defines the subject name of the X509 encryption type.

- A persistent identifier is saved to a particular user's data store entry as the value of two attributes.

- A transient identifier is temporary and no data will be written to the user's persistent data store.

##### Cert Alias

This attribute defines the certificate alias elements for the provider. `signing` specifies the provider certificate alias used to find the correct signing certificate in the keystore. `Encryption` specifies the provider certificate alias used to find the correct encryption certificate in the keystore.