Purpose : SSL/TLS Certificate Installation Guide
For Cisco ASA ( Cisco ASDM 6.1+ and ASA 5505+)

NOTE:
As of November 12, 2024, Entrust introduced a new TLS certificate hierarchy as part of the deployment. The TLS certificate delivery now includes two certificate chains. The delivery of these certificate chains can be in the form of:

• Individual files. Intermediate 1 (filename: intermediate1.crt ) and Intermediate 2 (filename: intermediate2.crt ) or
• Concatenate PEM file (filename: CertificateBundle1.pem/CertificateBundle2.pem ) or
• P7B format file (filename: Certificatebundle.p7b )

Both intermediate/chain certificates must be installed in your environment.


Skip to Installation

Need help generating a Certificate Signing Request (CSR) with this server? See our article here .

Before you begin...

• Never share private key files.

• If you plan on using the same certificate on multiple servers always transfer the private key using a secure method ( e-mail is not considered a secure method of transfer ).

• Make sure you run the SSL Server Test at the end of the installation process to check your certificate configuration against SSL/TLS Best Practices.

There is a video for this solution.

Installing your Entrust SSL/TLS Certificate on a Cisco ASA SSL VPN

1.  Click the Download button in the pickup wizard to download your certificate files. Clicking the download button will produce a zip file that includes your Server Certificate, the Entrust intermediate certificates(s) and the Entrust Root certificate. Extract the files from the zip file.

2.  In the Cisco ASDM Configuration Tool, select Configuration > Device Management > Certificate Management > CA Certificates.



3. Click Add . The Install Certificate dialog box appears.

4. Enter a Trustpoint name or use the default name that appears in the box.

5. Click the Install from a file radio button and browse to the Root.crt file that you downloaded in step 1.



6. Click Install Certificate .

7. In the CA Certificate Installation dialog box, click OK to confirm the action.

8. You should now see the Entrust root certificate listed in the CA Certificate section of the ASDM.

9. Repeat steps 3 - 8 to import Intermediate.crt that you downloaded in step 1.
NOTE: As of November 12, 2024, the intermediate certificate came with two files: intermediate1.crt and intermediate2.crt. These intermediate/chain certificates must be imported into your server/appliance.

10.  Now that you have imported the root certificate and the intermediate certificates, you are ready to install your signed SSL/TLS certificate. In the Cisco ASDM Configuration Tool, in Configuration > Device Management > Certificate Management > Identity Certificates  s elect the pending certificate request and click Install.



11. In the Install Identity certificate window, click the Install from a file radio button. Browse to the ServerCertificate.crt file that was downloaded in step 1.

12. Click Install Certificate.

14. A window appears that confirms the certificate is successfully installed. Click OK to confirm.

.

15. Your certificate should now appear in the list under Identity Certificates.
Your certificate is now installed.

16. In order to use the new certificate, you must configure your SSL Settings. In the Cisco ADSM configuration tool, go to Configuration > Device Management > Advanced > SSL Settings.

18. Select the interface that will be using SSL  under Certificates and click Edit .



19. Choose your new certificate from the drop-down menu, click OK , and click Apply and then Save to complete the setup process.

Your SSL/TLS certificate should now be installed.

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: 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.