[freenet-support] Related topic (Privacy): Britain wants to track all telecom usage

[Brian Mearns]

I thought quite a few people on this list might be interested in this
story, regarding privacy on networks. Maybe it will lead to more
people using Freenet, or maybe it will lead to increased legal
pressure on Freenet users.

http://spectrum.ieee.org/blog/computing/it/riskfactor/british-government-we-want-access-to-your-every-phone-call-email-and-web-search

The second paragraph gives the long and short of it.

The British government has decided to go ahead with its plans under
what it calls the Intercept Modernisation Programme to force every
telecommunication company and Internet service provider to keep a
record of all of its customers' personal communications, showing who
they have contacted, when and where, as well as the web sites they
have visited, according to the London Telegraph and various other
British papers.

-Brian

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Re: [freenet-support] Remove all identifying content from posted files (especially audio)

[Brian Mearns]

On Thu, Sep 10, 2009 at 6:54 AM, SmallSister development
smallsis...@xs4all.nl wrote:
 Brian Mearns wrote:
 I understand the basic architecture of Freenet and how it protects
 contributors, but I'm concerned that the files themselves might
 contain identifying information about the source of the file. In
 particular, for audio files such as MP3, Ogg Vorbis, and Flac. Does
 anyone have any information on making sure there are no
 fingerprints left on these files when posting?

 There is no way to be certain. There could be a future algorithm piecing
 together just enough bits from a file to identify you. Word frequency
 analysis has been used to discern likely writers of a plain text file.
 Yes, you can avoid stupid mistakes by checking for known signatures
 and removing them, but that is something that would be different for
 different file types (ogg would be somewhat different from mp3; but doc
 and pdf require totally different approaches.) It would be useful to
 have tools that can identify and remove watermarks and Freenet would be
 a great place to publish them (with source code please!)

 Peter.
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Bugger, I didn't even think of steganographic watermarks (shame on
me), I was thinking more in terms of meta data known to be stored with
various file formats (like ID3 tags), but this seems to be more
complicated than I expected. Thanks for the insight.

-Brian


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