Installing the BDO Trusted Publisher certificate for digital signatures

Installing a Trusted Publisher certificate allows an application or macro-enabled file that has been embedded with a digital signature from a trusted source to run on an endpoint.

A digital signature is like a seal of approval. A signature provides assurance to the user that the code is safe to run because of the cost and rigorous process required to obtain the signature and apply it to an application or macro. The signature also provides assurance in other ways: it ensures the code is from the source listed in the certificate that was used to sign the code, and it ensures the code has not been tampered with after the creators of the certificate signed it.

Downloading the BDO Trusted Public Certificate

  1. Download the Certificate: Click this link to download the zip file, which contains the certificate. It will be called “”.
  2. Save the Certificate: If prompted, choose a location on your computer to save the file and confirm the download.
  3. Unzip the Certificate file: Navigate to the location where you saved the “" zip file, right click on it and select 'Extract all'. Select the folder you want to extract the document to and confirm 'Extract' 

Installing the Certificate in the Trusted Publishers Store

  1. Open the Certificate: Navigate to the folder where you extracted the Zip file, where the “bdo_new_zealand_limited.cer” certificate file should be located. Double-click on it to open the Certificate dialog box.
  2. Install Certificate: Click on the ‘Install Certificate…’ button to start the Certificate Import Wizard.
  3. Choose Store Location: Choose ‘Current User’ to trust the certificate for your user account only.
  4. Place the Certificate: Select ‘Place all certificates in the following store’ and click ‘Browse’.
  5. Select the Trusted Publishers Store: In the ‘Select Certificate Store’ dialog box, scroll down and select ‘Trusted Publishers’. Click ‘OK’.
  6. Complete the Installation: Click ‘Next’ and then ‘Finish’ to complete the certificate installation. You may be prompted to enter an administrator password if you selected ‘Local Machine’ in step 3.

Trusting the Certificate for Macros

  1. Open the Macro-Enabled Document: Locate the macro-enabled document that you want to open and double-click on it.
  2. Trust the Publisher: If a security warning appears asking if you want to enable macros from the publisher, check the publisher’s name to ensure it matches “BDO New Zealand Limited”.
  3. Enable Macros: Click ‘Enable Content’ or ‘Enable Macros’ to trust “BDO New Zealand Limited” and open the document without further warnings.

Caution: Installing a Trusted Publisher certificate allows all applications and macros signed by the certificate run.   If you no longer need to interact with BDO New Zealand files and applications, we recommend you remove the “BDO New Zealand Limited” certificate:

  1. Open Certificate Manager: Click Start – Run.   Type “certmgr.msc” and click OK
  2. Chose the Trusted Publishers store.  Expand Trusted Publishers – Certificates
  3. Delete the certificate: Right click on the “BDO New Zealand Limited” certificate, and select Delete