Tracking Linux users via TCP source port selection algorithm

>**Attack model:** We assume the victim’s (Linux-based) device runs a browser that renders a web page containing a “tracking snippet” – a small piece of HTML and Javascript code (which runs in the browser’s Javascript sandbox). The snippet implements the client-side logic of the tracking technique. It can be embedded in web pages served by, e.g., commerce websites or 3rd-party advertisements. When a device visits these pages, the tracking server logic calculates a unique ID for that device, allowing tracking …

algorithm linux port privacy tcp tracking