For MDM-SCEP enrollment, you must add the following certificate types to Entrust Certificate Authority.

• signing
• encryption
• dual usage (signing and encryption)
• non-repudiation

See below for the required steps.

To add MDM-SCEP certificate types

1. Log into Entrust Certificate Authority Administration.
2. Export the certificate specifications to a file by selecting File > Certificate Specifications > Export.
3. Open the certificate specifications file in a text editor.

4. Add the following lines to the [Certificate Types] section.

   ; ----------------------------------------------------------------------

   ; Certificate types to be used with MDM for SCEP Enrollments

   ; ----------------------------------------------------------------------

   ent_mdm_scep_sig=enterprise,MDM-SCEP Signing,MDM-SCEP Signing Certificate

   ent_mdm_scep_enc=enterprise,MDM-SCEP Encryption,MDM-SCEP Encryption Certificate

   ent_mdm_scep_sig_enc=enterprise,MDM-SCEP Signing and Encryption,MDM-SCEP Signing and Encryption Certificate

   ent_mdm_scep_nonrep=enterprise,MDM-SCEP Signing and Nonrepudiation,MDM-SCEP Signing and Nonrepudiation Certificate

   ; ----------------------------------------------------------------------

5. Add the following lines to the [Extension Definitions] section.

   ; ----------------------------------------------------------------------

   ; Certificate definitions to be used with MDM for SCEP Enrollments

   ; ----------------------------------------------------------------------

   [ent_mdm_scep_sig Certificate Definitions]

   1=Verification_p10

   [ent_mdm_scep_sig Verification_p10 Extensions]

   keyusage=2.5.29.15,n,m,BitString,1

   [ent_mdm_scep_sig Advanced]

   noUserInDirectory=1

   [ent_mdm_scep_enc Certificate Definitions]

   1=Encryption_p10

   [ent_mdm_scep_enc Encryption_p10 Extensions]

   keyusage=2.5.29.15,n,m,BitString,001

   [ent_mdm_scep_enc Advanced]

   noUserInDirectory=1

   [ent_mdm_scep_sig_enc Certificate Definitions]

   1=Dual Usage

   [ent_mdm_scep_sig_enc Dual Usage Extensions]

   keyusage=2.5.29.15,n,m,BitString,101

   [ent_mdm_scep_sig_enc Advanced]

   noUserInDirectory=1

   [ent_mdm_scep_nonrep Certificate Definitions]

   1=Nonrepudiation

   [ent_mdm_scep_nonrep Nonrepudiation Extensions]

   keyusage=2.5.29.15,n,m,BitString,11

   [ent_mdm_scep_nonrep Advanced]

   noUserInDirectory=1

   ;-----------------------------------------------------------------------
6. Save and close the file.
7. Import the certificate specifications back into Entrust Certificate Authority. In Entrust Certificate Authority Administration, select File > Certificate Specifications > Import.