(Mac) Verifying Your Code Signing Certificate Installation

How to Verify Your Code Signing Certificate Is Installed

After generating your Code Signing Certificate, we recommend that you take a second to verify that your certificate is installed in the keychain or in the browser’s Certificate Store.

Safari and Chrome
Removing the “This certificate was signed by an unknown authority” Warning Message
Firefox

Safari and Chrome: Verifying Your Code Signing Certificate Is Installed

If you used Safari or Chrome to install your Code Signing Certificate, the certificate should be located in the login keychain.

1. Open Keychain Access.

   In the Finder window, under Favorites, click Applications, click Utilities, and then double-click Keychain Access.

   

2. In the Keychain Access window, under Keychains, click login, under Category, click Certificates, and you should see your Code Signing Certificate, if your certificate was installed in your keychain.

   

3. Expand your code signing certificate, and you should see a private key.

   Note: If the certificate does not have a private key that corresponds to the certificate, you will need to re-key your certificate inside your DigiCert account and go through the installation process again.

   

4. Once you have verified that your certificate is installed and that it has a corresponding private key, you can use your code signing certificate to start signing code.

   For code signing instructions, please see our Code Signing Support & Tutorial page.

Removing the “This certificate was signed by an unknown authority” Warning Message

If you receive the “This certificate was signed by an unknown authority” warning message, do the following:

How to Install the DigiCert Intermediate Certificate

1. Open your code signing certificate.

   Right-click your certificate and in the list of options, click Get Info.

   

2. In your “Code Signing Certificate” window, expand Details.

   

3. In the Extension Certificate Authority Information Access section, under Method #2 CA Issuers, to the right of URI, click the Intermediate Certificate link.

   

4. After Safari downloads the Intermediate Certificate, double-click the certificate to open it and install it in your login keychain.

   

5. Close the Intermediate Certificate.

6. In your login keychain, where the warning message was located, you should now see the “This certificate is valid” message.

   

Firefox: Verifying Your Code Signing Certificate Is Installed

1. In Firefox, go to Preferences.

   

2. In the Preferences window, click Advanced, next, click Certificates, and then, click View Certificates.

   

3. In the Certificate Manager window, click Your Certificates, you should see the code signing certificate that you just installed.

   If you have multiple code signing certificates, use the expiration date to determine which certificate is the correct one. To view the details of the certificate, select the certificate and then click View.

   

4. Once you have verified that your certificate is installed, you can use your code signing certificate to start signing code.

   For code signing instructions, please see our Code Signing Support & Tutorial page.