Netrust issues multiple classes of certificates to support different certificate user communities. Each class of certificates is governed by a CP that differentiates the use of the certificates for different application purposes and/or by different certificate user communities. The CP(s) include: Netrust NetID Certificates Personal Net-ID Certificate ("NPNC") Corporate Net-ID Certificate("NCNC") Netrust Corporate OrgID Certificate Netrust Corporate OrgID Certificate ("NCOC") Netrust Corporate ProfID Certificate Netrust Corporate ProfID Certificate ("NCPC") Netrust Server Certificate Netrust NetServer Server Certificate ("NSDC") Netrust Version 3 CPs