Bruno,
By default, Qlik Sense server creates its own self-signed certificates during install. If you wish to change the server certificate used by the Qlik Sense server you will want to do the following:
1. Your IIS server certificate needs to be issued from a trusted certificate authority and include the private key.
2. Import this certificate into the local machine\personal certificate store through the MMC on the Qlik Sense server.
3. Open the certificate and make note of the thumbprint for the certificate.
4. Open the Qlik Sense server QMC and click on the Proxies item in the Configure System section of the left-side menu.
5. Open the Central proxy and click on the Security list item on the right side of the screen. The Security thumbprint text box will appear.
6. Enter the thumbprint of the certificate without spaces to be safe and click Apply.
7. The QMC will prompt for restart.
Here is the reference from help.qlik.com: http://help.qlik.com/sense/en-US/online/#../Subsystems/ManagementConsole/Content/ServerUserGuide/SUG...
If you add a certificate thumbprint from a certificate without a private key the thumbprint entry will not work. If you run into problems after applying the thumbprint, I think you can go back to default settings by deleting the certificate from the MMC and stop and start the Qlik Proxy Service. Some admins prefer to turn on http in Qlik Sense Central proxy temporarily to test https functionality with the updated thumbprint. That way if something goes awry you have a back up entry method during testing.
jg
