On 08/24/2013 01:42 AM, Kevin Franks wrote: > Hi. I read the FAQ question that says "I don't want my node to be > used to harbor child porn, offensive content or terrorism. What can I > do?" > > My question is, if I use freenet, how can I tell if my computer has > such content installed on my computer, and how to get rid of it when > I stop using Freenet? Thanks.
To answer your immediate question, you cannot - practically speaking - tell what content is stored on your computer specifically. Doing so requires a concerted effort and the use of tools that could - but to my knowledge do not - exist. Even then, you would be unable to identify everything. You can remove the content Freenet has stored on your computer by uninstalling Freenet. If you are on Windows, there is an uninstaller. I don't know about OS X. On Linux one can delete the directory Freenet is installed in. More abstractly - as to why one's Freenet node could be used to store undesirable content. Freenet functions as an encrypted storage device distributed between the hard drives of all the users of the software. Instead of storing entire files, things are stored in encrypted pieces called "blocks." When you use a key - they can start with CHK, KSK, SSK, or USK - the key contains information on how to find the blocks for that file and also how to decrypt the blocks once they are fetched. Without the key it is effectively impossible to tell what blocks belong to what files, or what those files are. Philosophically speaking, Freenet is a medium for censorship-resistant communication. As one would expect this means it is designed to be very difficult to censor or block, and contains no mechanism intended to remove objectionable content. From a technological point of view one cannot have free speech with exceptions. If a capability to remove objectionable content exists, that capability can be used to censor arbitrary content. Freenet is a tool, and some people choose to use it for things that are considered offensive or objectionable. In a sense, that they are able to do so demonstrates that it has achieved something of its goal.
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