Did you just find a download or a file on your computer that has been digitally signed by CADSTA Pty Ltd? If so, please read on.
You will probably see CADSTA Pty Ltd when clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view additional details from the CADSTA Pty Ltd certificate with the following procedure:
Here is a screenshot of a file that has been digitally signed by CADSTA Pty Ltd:

As you can see in the screenshot above, Windows reports that "This digital signature is OK". This implies that the file has been published by CADSTA Pty Ltd and that the file has not been tampered with.
If you click the View Certificate button shown in the screenshot above, you can view all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, etc. You can also see the address for CADSTA Pty Ltd, such as the street name, city and country.
DigiCert SHA2 Assured ID Code Signing CA has issued the CADSTA Pty Ltd certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the CADSTA Pty Ltd files I've collected, thanks to the FreeFixer users.At the moment there's no scan result available for any of the CADSTA Pty Ltd files, but they have been queued for scanning. Please reload this page in 5-10 minutes to check if the scan result is available.
| Detection Ratio | File Name |
|---|---|
| Queued for scan.. | cadstakeysrv.exe |
The analysis is done on certificates with the following serial numbers: