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How to generate ECC Certificate Signing Request using Microsoft Management Console (MMC) on Microsoft Windows 2012 ?

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ECC Certificate Signing Request (CSR) Help

For Microsoft Management Console (MMC) on Windows Server 2012


  • Microsoft Windows Vista and above
  • Microsoft Windows Server 2008 and above

Here is the Process:

1.  Go to Start menu and search for MMC.

2. Open Microsoft Management Console (MMC).

3.  Go to File > Add/Remove Snap-in.

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4.  Click Certificates, and select Add.

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5.  Select Computer Account, and click Next.

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6.  Select Local Computer and click Finish

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7.  Click OK to close the Snap-ins window.

8.  Double-click Certificates (local computer) to expand its view.

9.  Expand the Personal folder in the Certificates. Right-click then All Tasks, select Advanced Operations and Create Custom Request.

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10. Click next on the Certificate Enrollment wizard

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11. Select the option Proceed without enrollment policy then click Next to continue.

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12. On Template option, select (No Template) CNG Key and PKCS #10 on Request format option. Click next.


13. Expand Details selecting the dropdown arrow and then click on Properties button.

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14. On General tab , type in Friendly Name for your SSL certificate and Description (optional). Click on Subject tab to continue for the next entries.

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15. On the Subject Name:Type dropdown box select Common Name as your option. Type your fully qualified domain name in the Value field and then click Add button.

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16. Please consult the table below for a complete list of entries that must be included, and can be added from the same dropdown box from which you added the Common Name.

Type Prefix Description Example
Common name cn Domain to be secured by certificate
Organization o Organization’s legal business name Entrust Inc.
Organizational Unit ou Department in the organization IT
Locality l Business location - city Ottawa
State st Business location – state/province Ontario
Country c Business location - country CA

If Subject Alternative Names (SAN) are required on the certificate, under the Alternative name section select DNS on the drop down menu and then provide the value relating to the SAN you wish to include. Repeat the process to add more SANs if required. User-added image

17. Go to the Private Key Tab and select the arrow button to the right of Cryptographic Service Provider to expand the list of all CSPs. Select one of the ECC curves such as ECDSA_P256, Microsoft Software Key Storage:


18.  Expand Key options section by clicking the down arrow button on the side and (optional): check the box for Make Private Key Exportable . Review that all these options have been selected, and click Ok button to continue.


19.  Click Next button to continue to save your CSR.


20.  Click on Browse button to select the location where the certificate signing request (CSR) will be saved. Type the file name and make sure the Base 64 is selected as File Format . Click Finish button. Your CSR now has been generated. Click Finish button to close the window.

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21.  Here is the sample of the CSR when you opened it with Notepad.

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If you have any questions or concerns please contact the Entrust Certificate Services Support department for further assistance:

Hours of Operation:
Sunday 8:00 PM ET to Friday 8:00 PM ET
North America (toll free): 1-866-267-9297
Outside North America: 1-613-270-2680 (or see the list below)
NOTE: Smart Phone users may use the 1-800 numbers shown in the table below.
Otherwise, it is very important that international callers dial the UITF format exactly as indicated. Do not dial an extra "1" before the "800" or your call will not be accepted as an UITF toll free call.

Country Number
Australia 0011 - 800-3687-7863
Austria 00 - 800-3687-7863
Belgium 00 - 800-3687-7863
Denmark 00 - 800-3687-7863
Finland 990 - 800-3687-7863 (Telecom Finland)
00 - 800-3687-7863 (Finnet)
France 00 - 800-3687-7863
Germany 00 - 800-3687-7863
Hong Kong 001 - 800-3687-7863 (Voice)
002 - 800-3687-7863 (Fax)
Ireland 00 - 800-3687-7863
Israel 014 - 800-3687-7863
Italy 00 - 800-3687-7863
Japan 001 - 800-3687-7863 (KDD)
004 - 800-3687-7863 (ITJ)
0061 - 800-3687-7863 (IDC)
Korea 001 - 800-3687-7863 (Korea Telecom)
002 - 800-3687-7863 (Dacom)
Malaysia 00 - 800-3687-7863
Netherlands 00 - 800-3687-7863
New Zealand 00 - 800-3687-7863
Norway 00 - 800-3687-7863
Singapore 001 - 800-3687-7863
Spain 00 - 800-3687-7863
Sweden 00 - 800-3687-7863 (Telia)
00 - 800-3687-7863 (Tele2)
Switzerland 00 - 800-3687-7863
Taiwan 00 - 800-3687-7863
United Kingdom 00 - 800-3687-7863
0800 121 6078
+44 (0) 118 953 3088