Key and CSR Generation Instructions

An Important Note Before You Start:
By far the most common problem users have when going through this process is related to private keys. If you lose or cannot access a private key, you cannot use the certificate we issue to you and will need to request a free reissue. To ensure this never happens, we advise that a backup of the private key file is made and that a note is made of the password that is used to protect the export of the private key.

Note: In the interest of better security and the enablement of greater trust, we have decided that 1024-bit keys will now be the minimum strength used in the issuance of thawte digital certificates.

1. Start the Key/CSR Generation Process:

Under Administrative Tools, open the Internet Services Manager. Then open up the properties window for the website you wish to request the certificate for. Right-clicking on the particular website will open up its properties.

2. Click the Directory Security tab

Click the Directory Security tab and then click on the "Server Certificate" button in the Secure communications section. This will start the Web Site Certificate Wizard.

3. Select "Create a new certificate"

From the Web Site Certificate Wizard, select the "Create a new Certificate" option.

4. Prepare the request

Select the "Prepare the request now, but send it later" option from the list. You will need to prepare the request now but will only submit the request (CSR) via our online request forms. We do not accept CSR's via email.

5. Enter a certificate name and the certificate strength

At this point you will decide what encryption strength your private Key and CSR will be set at. It is advised to choose a 1024-bit key size. Please note that you can choose a larger key size although some browsers may have difficulty making a session with a bigger key size. Do not check the option ‘Select cryptographic service provider (CSP) for this certificate’.

You have now created a public/private key pair. The private key is stored locally on your machine in the MMC, and is used for decryption. The public portion is sent to thawte in the form of a Certificate Signing Request (CSR), and will be used by your users to encrypt the data they send to your site.

You will now create a Certificate Signing Request (CSR). This information will be displayed on your certificate, and identifies the owner of the key to users. The CSR is only used to request the certificate. Certain characters must be excluded from your CSR fields, or your certificate may not work.

6. Enter your Organization Information

You should enter the company name as it appears on your official company registration documents. The organization unit is optional but IIS 6.0 makes this field compulsory therefore please specify an organization unit.

7. Enter your common name

The term "common name" is X.509 speak for the name that distinguishes the certificate best, and ties it to your Organization. Enter your exact host and domain name that you wish to secure. Example: If you wish to secure www.mydomain.com, then you will need to enter the exact host (www) and domain name (mydomain.com) in this field. If you enter mydomain.com then the certificate issued to you will only work error free on https://mydomain.com. It will cause a certificate mismatch error when you or your users access the domain via https:// www.mydomain.com.

8. Enter the geographical details of your Organization

Enter your country, state or province and locality or city.

9. Choose a filename to save the request to

Enter the file name for the certificate request (CSR) and the location of where you would like to save the file (we recommend you click the ‘browse’ button and select a location to save the CSR file to). Then click "Next”.

10. Confirm your request details

The next page will display the summary of the certificate request.

11. Finish and exit the IIS Certificate Wizard

Click on 'Finish' to complete the "Web Server Certificate wizard".

12. Backup your private key

If you create a new CSR, or new Key for the same web site, you will overwrite the ones you used to request your certificate. If that happens, you cannot use the certificate we issue you and will need to request a reissue. Please ensure you have a backup of your private key in case it is lost or overwritten.

Please backup your private key using the instructions at the following link: http://www.thawte.com/support/backup.html

13. Start the thawte certificate request process

To submit the CSR for processing you should start the certificate enrollment process at the following link: https://www.thawte.com/buy

Note: If you have a SPKI or Reseller account please submit the CSR through the enrollment process in your account.

If you encounter any problems, or errors when going through these steps, please read our IIS 6.0 FAQ’s.