Loading Singpass root signing certificate

In order to verify if a Sign with Singpass signature is valid, see here.

Before that, the Singpass root signing certificate must be installed on your device. If you do not have the Singpass root signing certificate on your device, please follow the steps below.

For government agencies, this should already be automatically available on your GSIB. If it is not, please raise a ticket to AFM to push “GSSP_Acrobat Reader Digital Signature Fix_2.0” to the agency's GSIBs. For the rest of the agencies, you may follow the steps below or approach your IT department to push the certificates so that it applies across your agency.

1. Go to IMDA's website and download Root CA: Singapore National Root CA - G1 Certificate.

   

2. In your folder that you have chosen, you should find the file SNRCA-G1.cer.

   

3. Open Adobe PDF reader. If you do not have this, you may download and install here.

   

4. Click "Acrobat Reader" on the top left.

   

5. Navigate to "Preferences"

   
6. Under Categories, find and click "Signatures".

   

7. Click "more" under Identities and Trusted Certificates.

   

8. Click on "Trusted Certificates"

   

9. Click Import

   

10. Under contacts, click "Browse" and choose the certificate you have downloaded in earlier step.

    

    

11. Under certificates, click on Singapore National Root CA - G1 and then click Trust

    

    

12. Check "Use this certificate as a trusted root" with a tick and press OK

    

13. Click on Import

    

    You should now be able to see Singapore National Root CA - G1 under your Trusted Certificates.

    

14. Enable certification revocation checking This can be found under preferences > signatures > verification

    

    

    All done!