gmane.network.freenet.technical

China Tor bridge blocking details

Matthew Toseland — 2012-04-04T19:19:27

http://www.v3.co.uk/v3-uk/news/2165733/swedish-researchers-uncover-key-chinas-tor-blocking

Looks like they look for a header that looks like a connection to a bridge, then try to do a handshake. This is surprisingly sophisticated - I had expected they just created thousands of gmail accounts and harvested all the bridges by email.

Also, they appear to be able to create unidentifiable IP addresses on demand, meaning that the opennet protection schemes based on IP scarcity are not going to work.

This won't work as-is with Freenet because Freenet doesn't do handshakes unless you have the keys. However there may be (more complicated) ways to identify the traffic, and the above implies they may be sophisticated enough to implement them. It does mean that obfuscation (stego) is increasingly important.
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Freenet compared to Tahoe-LAFS

Zooko Wilcox-O'Hearn — 2012-03-23T18:28:16

Folks:

Almost a year ago I wrote a letter to the tahoe-dev mailing list
comparing Tahoe-LAFS and Freenet. Just now I was reminded of this
letter (because it is referenced from the Tahoe-LAFS FAQ ¹ which was I
was editing), and on re-reading it, I think it is still relevant.

Below is the text of this letter, which is visible on the tahoe-dev
mailing list archives here:
https://tahoe-lafs.org/pipermail/tahoe-dev/2011-July/006560.html

I hope you find it interesting! Comparing and contrasting complex
things like these can help everyone understand them better. Obviously,
writing generic criticisms about which is better than the other would
be a waste of time.

Regards,

Zooko

¹ https://tahoe-lafs.org/trac/tahoe-lafs/wiki/FAQ


Folks:

The topic has come up on the IRC channel and trac about "What's the
difference between Tahoe-LAFS and Freenet?". I will try to answer that
question here, but there are probably other important differences than
the ones I'm thinking of, so this answer shouldn't be treated as
de

help me, please,to implement project of storing datas on cellular phones

DmitryTurin.narod.ru — 2012-02-05T21:22:14

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imap and talktalk.net

Anthony Dynes — 2011-09-26T10:58:26

Hi,
     my IP provider is talktalk.net, (bad choice maybe) which dos not carry imap, i have set up thunderbird 6 as specified on the website, after a while it will say localhost in the bottom left corner, if i try to download a message say from gmail it will ask for my password, which it will not except, can you help me short of getting a new IP provider.

                                                                                                                                                  Many Thanks

                                                                                                                                                         Anthony

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Freenet on a mesh network

Sheref Younan — 2011-06-21T20:07:42

Hi,
I'm wondering about the feasibility to use Freenet over a mesh network
independent of the internet. Where every Freenet node will be a node in the
mesh, nodes will communicate with neighbours  via WiFi or other wireless
communication medium without the need of conventional Internet as a
communication medium.

This will have the advantage of offering a scalable and decentralized
network that will not need an existing Internet infrastructure and will
(among other things) resist block outs like the infamous one made in Egypt
during its revolution (January 2011)

any ideas, comments ?

Thanks,
Sheref Younan
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Freenet on a Delay-tolerant network

Tom Sparks — 2011-06-01T17:35:21

How would Freenet work on a delay-tolerant network like Probabilistic Routing Protocol using History of Encounters and Transitivity (PRoPHET) [1] ?

 [1] http://tools.ietf.org/html/draft-irtf-dtnrg-prophet

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Solution to churn problem and possibly to the Pitch Blackattack

Pierre Abbat — 2011-05-15T05:14:31

I read the Pitch Black paper and I think I've figured out a solution. Instead 
of trying to fit a circular keyspace in a graph that's spread over the 
surface of the earth with some long-distance links, I think it would be 
better to make the keyspace have more dimensions. Here's my proposal:

Break a key or location into four equal parts. These are coordinates of the 
point on a four-dimensional torus. Distance is measured in 8-space by 
embedding each torus dimension as a circle.

Every 1024 times a node adds something to its store, it performs this 
calculation: First it adds all the keys in its store as vectors in 8-space, 
then reduces that to a 4-dimensional point on the torus. Then it adds all its 
neighbors' locations and again reduces it to a point on the torus. The result 
is its new location. The location will be close to its neighbors; if the 
surface containing locations is curved, more of the store will be on the 
outside of the curve. Young nodes with few keys stored will be pulled rapidly 
to

nodes caching frequently requested files

Jan — 2011-04-18T21:02:05

Hi,

I'm completely new to freenet, actually I had this idea and someone told
me that this already exists. Awesome! So I'm not sure if this is done
already, I couldn't find anything on this. My idea is that if there are
seedboxes (sry I'm from the bt world, dunno how you call them), and, say,
50GB of free disk space, and there is this new episode of, say, Pioneer
One, and every 30 minutes he has to route the very same file. Couldn't we
implement the option to cache that file so other nodes are less seizured
and the file gets more seeders. The same technique could be used to keep
files with few seeders alive, of cause. Is this already implemented? If
not, what do you think of the idea?

-jan

Freenet doesn't start

Chris Marschner — 2011-03-11T21:43:29

I receive following error messages upon starting Freenet

"The Freenet wrapper terminated unexpectedly."

"The Freenet launcher was unable to connect to the Freenet node at port  
(8888)"   <- or any other port I tested

WebM filter

Danny — 2011-01-02T14:27:36

I see on the roadmap that a Theora filter is planned for the 0.8 release
and WebM is pushed back until 0.9. I think a WebM filter should be
supported in 0.8 if possible. It obviously provides much better video
quality than Theora. It also seems to have more momentum at the moment
with Firefox, Chrome, and Opera supporting it by about the time 0.8 is
released.
  Danny
  maminow-97jfqw80gc6171pxa8y+qA< at >public.gmane.org

Another approach to public gateways?

Matthew Toseland — 2010-12-06T17:48:01

There has been some discussion of public gateways on IRC recently, particularly by nextgens, and by an enthusiastic person joining the channel concerned with wikileaks.

The problem with public gateways has always been that the owners of these nodes are liable to get into trouble for allowing access to Bad Stuff.

I wonder if we could:
1) Have a selective gateway mode, where you only allow external access to your personal favourite sites (a checkbox when you bookmark, perhaps), AND
2) Co-ordinate between the gateways via a Web of Trust app, so that you can click on a link and have it find a gateway that has that site? AND
3) When you reach a site that isn't mirrored by anyone, try a universal gateway AND
4) If there aren't any universal gateways, or every time you see a download page, send some advertising to get the user to install Freenet, possibly with a locally served installer package (requires our packages are signed).

Obviously it wouldn't scale indefinitely, and it would be possible to fetch the ful

opennet/darknet

hppppl fdfjisoa — 2010-12-05T05:21:42

Hello, I remember all the discussions about opennet vs. darknet with difficult security issues causing the project to focus on darknet, and I am reminded of my nagging questions by recent devl discussions.
I have concerns about darknet that maybe you folks have all figured out, but I don't recall it being mentioned anywhere, so perhaps you can explain.

Many people obviously correlate the desire for anonymity for the desire to conduct 'illegal' behavior. Would I want to directly ask people I know if they run or if they would be willing to run a freenet node in a society where there may be a stigma associated with this?

What if a country makes running a freenet node illegal? Is it then more safe to be connected to people you know? Is it more safe to approach the people you know about it and risk getting turned in? Or when someone you know is caught operating a node, then they can confess about all the people they connect to, and whole groups of people can be caught at once.

I am wondering if opennet's inad

Thoughts on traffic analysis and fast nodes

Matthew Toseland — 2010-08-23T12:25:11

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Opennet harvesting

Michael Rogers — 2010-07-28T11:44:42

Sorry if this has already been discussed - I was off the list at the
time the paper was published.

Researchers at the University of Minnesota carried out an address
harvesting attack on Freenet opennet. They estimate the size of the
opennet at around 2,500 nodes at any time, from a long-term population
of around 11,100. It took a single node 2.5 hours to collect the
addresses of nearly all active opennet nodes.

Obviously the concept behind this attack isn't news to anyone here, and
I realise it's not something opennet tries to protect against, but I was
interested to see some empirical figures.

http://www-users.cs.umn.edu/~hopper/mcon-ccs.pdf

Cheers,
Michael

Semi-distributed searching (and maybe fully distributed too)

Matthew Toseland — 2010-07-19T20:55:26

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Private Information Retrieval

Michael — 2010-07-11T17:36:06

  Hi everyone,
In the original paper for Freenet (Freenet: A Distributed Anonymous 
Information Storage and Retrieval System), the authors discredit the use 
of private information retrieval protocols.

"Private Information Retrieval schemes [9] provide much stronger 
guarantees for information consumers, but only to the extent of hiding 
which piece of information was retrieved from a particular server.  In 
most cases, the fact of contacting a particular server in itself reveals 
much about the information retrieved."

I think that this isn't really the case with freenet, because no one 
knows what is on a person's server (it's encrypted); so, by contacting a 
server there is no risk.  Also, couldn't it be considered more secure 
because no one knows what data is being requested when you use a Private 
Information Retrieval (PIR) scheme.  If this were the case, there 
wouldn't be a need for routing data to anonymize origin requests.

I was wondering what people here thought and if it made sense to them, 
b

freemail via webmail interface

Tom Sparks — 2010-07-01T07:06:11

I feel a web-based interface to access freemail is missing for people who don't want to install email client
 
tom_a_sparks
Light travels faster then sound, which is why some people appear bright, until you hear them speak

voicemail/videomail via freemail

Tom Sparks — 2010-06-30T01:01:44

Is Voicemail/videomail via freemail possible?

I know speex audio codec[1] can compress 14 minutes to about 1.5Mbytes

[1] www.speex.org/

tom_a_sparks
Light travels faster then sound, which is why some people appear bright, until you hear them speak

Voltage problems lead to exploitable RSA weakness

Matthew Toseland — 2010-05-05T19:30:48

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ignore the most recent "browser plugin" email

Kyle Messner — 2010-04-02T16:16:32

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GSoC 2010 --- developing a firefox plugin

Kyle Messner — 2010-03-25T06:18:57

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