the original subject was "reducing the negative anonymity impact for Tor node operators running nodes at home" but then I thought it is a bit to long for a subject line :)
As a tor user you gain anonymity - as a Tor node operator you loose anonymity. I would call this a valid statement under certain circumstances. The positive site effect of a dynamic IP address (lease <1d or even <1w) is, that your IP is of less use to people trying to track you based on your IP address. If you run a Tor node at your home IP address you will loose the positive side effect of a dynamic IP address and your IP layer anonymity decreases to that of a static IP address because your node identity links all your public IP addresses. Actually it is even worse than being on a static IP address because an IP address (alone) does not offer the same amount of certainty as cryptographic ID's do (node fingerprint). A tracker would have to wonder if IP address Y was assigned to the same person if he/she sees it again after some months - there is no such doubt if the IP hosts a Tor node. For a Tor node operator (running a node at home) the server descriptor archive becomes a data retention database, but the server descriptor archive is not the problem. This issue is even more relevant for Tor nodes running on mobile devices (e.g. a laptop) If you are running a Tor node on your notebook you should reset longterm keys and Nickname depending on your location. Even the fact that you are running a tor node is sensitive information because this reduces your anonymity set from on out of ~2^32 to one out of 2^32 ;) I submitted a Tor feature request to reduce the privacy impact for Tor node operators running nodes at home: https://trac.torproject.org/projects/tor/ticket/2980 best regards, tagnaq PS: I'm speaking only about non-exit nodes here because running an exit at home and mixing your traffic with an exit is not a good idea[1]. [1] https://blog.torproject.org/blog/tips-running-exit-node-minimal-harassment _______________________________________________ tor-talk mailing list [email protected] https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk
