The class name of the subject builder. 

• com.entrust.adminservices.cagw.common.subjects.BasicSubjectBuilder
• com.entrust.adminservices.cagw.common.subjects.SubAltNameSubjectBuilder
• com.entrust.adminservices.cagw.common.subjects.TemplateSubjectBuilder

Mandatory: No. This optional parameter defaults to com.entrust.adminservices.cagw.common.subjects.BasicSubjectBuilder.