ROS certificate
Your certificate stays in this browser. Brickie never receives it, and cannot file on your behalf without you present.
Checking this device…
Load your certificate
Choose the certificate file you downloaded from ROS and enter the password you use to log in to ROS.
If Revenue told you to convert that password to a base64 MD5 hash, that is for other software. Brickie does the conversion for you — enter the password itself.
Keep the original certificate file. It is stored only in this browser, so it is lost if you clear browsing data, switch browser, or use another computer. Loading it again takes a few seconds and is nothing to worry about.