Those who wish to do so can choose from plenty of great VPN services that are perfectly suited for this, and there are even specialized BitTorrent proxies such as BTguard.

The benefit of the above services is that they allow users to browse and download ‘anonymously,’ but at full speeds. The downside is that users have to cough up a few bucks a month for these premium services.

Perhaps in an attempt to avoid a paid subscription, there is also a certain group of BitTorrent users who use the Tor network to anonymize their traffic. This is a big problem. Although one BitTorrent user taking this option is unlikely to prove problematic, a few thousand can cause some serious damage, in more ways than one.

Aside from crippling the network by transferring massive amounts of data over a system that is set up for web browsing, Tor servers are also being monitored and subsequently notified by copyright holders for facilitating “infringing” transfers. The DMCA notices that copyright holders send out are strictly speaking not a problem, but some ISPs freak out over them, which may lead to servers being disconnected.

One Tor service that has received its fair share of DMCA notices over the last month is Torservers.net. A few days ago the operator posted a collection of 190 recent DMCA notices, and that only represented those received in a 20 day period. Most of the automated notices received were sent by MediaSentry (now Peer Media), on behalf of several major movie studios and other copyright holders.

As the Torservers.net operator Moritz Bartl explains, Tor servers are protected by the DMCA just like major ISPs are, but that doesn’t mean the avalanche of DMCA notices can’t do any harm. The companies where Torservers.net rents its servers may become worried about the large amounts of complaints being received and decide to kick their client nonetheless.

This is exactly what happened to Torservers.net in the past.

“The most frighting example was Softlayer. We had a deal with 100tb.com, a team of friendly and understanding people that use Softlayer as data center. Nonetheless, Softlayer cut us off after one single DMCA complaint that referenced a port we didn’t even allow to exit at that time,” Bartl told TorrentFreak.

“They did not care and didn’t want to hear any explanations, they just forced us off their network. This is an absurd situation similar to the recent Facebook incidents, because anyone could send DMCA complaints, and it is very hard to find ISPs that first ask for proof before taking action,” he added.

Talking to TorrentFreak, Moritz Bartl further said that he encourages the public to take a look at the emails to see if there’s a clear pattern to identify. This will help him and others to control the DMCA spam. Eventually, he might end up blocking the IP-addresses of all major BitTorrent trackers as a last resort.

Hosting companies who are Tor friendly and can take DMCA notices in their stride are being welcomed to get in touch too. The Torservers.net operator tried to contact the senders of the notices to come to a more workable solution, but thus far they seem to be unreachable.

The ultimate setup for Torservers.net is one where the hosting provider reassigns the IP-range to them, so they can handle the abuse emails directly. For ARIN IPs this doesn’t work, but then the provider could simply forward the DMCA notices, automatically or not, so Torservers.net can take care of it.

“We auto-reply to Mediasentry DMCA spam, telling them that we are not allowed to keep customer logs based on the German telecommunications law, and that we are not liable for content transmission. That’s what every ISP in the world should do – unless local laws require them to keep customer logs that is. Only a few countries really force you to keep customer logs though,” Bartl said.

The most important lesson, however, is that those who value anti-censorship tools should not abuse Tor by running their BitTorrent traffic over it. Although the massive amount of DMCA notices shows that it works, it may eventually mean that Tor is no longer available to the people who it was built for.

Source: Tor Servers Bombarded With BitTorrent DMCA Notices

However, if website blocking should prove ineffective at reducing infringement these requests would become pointless even if authorized. So, to ascertain the effectiveness of blocking, Secretary of State for Culture Jeremy Hunt asked communications watchdog Ofcom to look into the matter and report back by spring.

But as the wheels and processes slowly turn, accompanied by calls from the Open Rights Group for citizens to challenge the proposals, those unencumbered by layers of bureaucracy are acting quickly.

As widely predicted, a way around website blocking has been found quicker than it has even been assessed, let alone implemented. First up, one the MPAA’s primary blocking targets – Usenet indexing site Newzbin2.

“Since web blocking seems to be the new DRM for the Dirty Half Dozen and our name has featured high as a prospective victim of a domain name grab or a block, we thought we’d address the problem by the use of the free speech tool Tor,” Mr White from Newzbin2 told TorrentFreak today.

“We have set up a hidden Tor service accessible at http://sc3njt2i2j4fvqa3.onion,” he added.

Without going into huge amounts of detail, what Newzbin2 have done is set up what is known as a ‘hidden service’ with the world-famous TOR anonymity network. This means that by using the above URL with a TOR-enabled browser, anyone can access Newzbin2, even if its domain name is blocked or seized.

For those that don’t want to install TOR there is also another solution. By exchanging the .onion pseudo-TLD with tor2web.org (e.g http://sc3njt2i2j4fvqa3.tor2web.org), .onion URLs can be accessed from a normal browser with no addons whatsoever.

“By running a hidden service we make the MPA’s attempt to knock our name off the web entirely futile,” says Mr White.

“Newzbin2: 1 Stupids: 0,” he concludes.

Source: Newzbin2 Uses TOR To Kill Domain Blocking Before It Even Happens

A question which regularly pops up in the TorrentFreak mailbox is “How do hide myself online? How can I get free anonymous BitTorrent?” Our answer is usually something along the lines of “Free anonymous BitTorrent isn’t really a reality right now. You could use TOR but please, please don’t. It’s slow and really, the people who run TOR do not want it flooded with torrent traffic. Your best option is to use a VPN service, but this will cost you a few bucks.”

Maybe, just maybe, in future our answers will be different. Allow us to introduce BitBlinder, a new and free cross-platform (Mac support coming soon) open source project which not only claims to make anonymous BitTorrent transfers a reality but also hides your IP address while browsing the web. Its functionality also extends to the bypassing of some web filters and in the future will be compatible with more applications, such as email, IRC and instant messaging clients.

Although anonymity with the previously-mentioned TOR is good, using it for torrents is a big no – it’s too slow and the operators of the network do not appreciate it. BitBlinder was born to solve the problems that TOR couldn’t. TorrentFreak caught up with Josh Albrecht, one of the creators of BitBlinder, for the lowdown.

“BitBlinder is an attempt to address the aforementioned issues with Tor – we want to make online anonymity fast, usable, and ubiquitous to the point that organizations give up on spying and filtering us,” Josh told TorrentFreak. “BitBlinder is actually built on much of the same technology as Tor, though we have a completely separate network.”

The anonymity itself is provided by BitBlinder’s own P2P network, inside which everyone is required to contribute their own bandwidth to proxy other users’ data. The diagram below shows a standard user setup, without anonymity;

As seen in the diagram below, your request for data using BitBlinder is passed encrypted through multiple peers. Each peer in the chain only knows the IP address of the next person in the chain, not the original requester/sender.

Since decent BitTorrent-capable anonymity services cost money these days, how can BitBlinder offer the same for free? The key is to think of it as operating a little like a private BitTorrent tracker.

In order to maintain a good ratio on a private tracker, at a minimum you need to upload the same amount of data as you downloaded. With BitBlinder there is a similar system – in order to get the service for free you have to proxy X GB of data for other people inside the swarm if you want to share X GB of anonymized data. In common with some new accounts on private trackers, BitBlinder accounts come pre-loaded with some free credit to get the user going – 2GB to be precise. If anyone prefers not to be bound by ratio rules in the future, just like on many private trackers it will also be possible to buy ‘upload credit’ to use BitBlinder, but there is no reason why people can’t use it for free, as long as they share their bandwidth as detailed above.

At this point some readers will be asking how it’s possible for no-one to know what’s going on inside the BitBlinder swarm, yet somehow BitBlinder manages anonymity ratio tracking. It is possible though, and for those interested to learn about the micro-payment system BitBlinder’s is based on, further (highly technical) reading can be found here (pdf).

Of course, since traffic is sent from your PC to others in the BitBlinder swarm before reaching its destination in order to anonymize it, it won’t be as quick as regular non-anonymous BitTorrent use, but Josh told us speeds should be respectable and in any event, much faster than TOR. Indeed, within a few seconds of starting a ‘Steal This Film’ torrent from The Pirate Bay, we experienced speeds in excess of 2Mbit/s, which is massively faster than my previous experiences of BitTorrent over TOR.

For Windows users the BitBlinder package comes in a 17mb installer. The torrent client is a custom version of BitTornado and although it doesn’t have all the features of say uTorrent, more features will be added as time goes by. The bundled anonymous browser is naturally built on Firefox.

Josh told us that the BitBlinder network could be made to work with uTorrent or another browser such as Internet Explorer but unfortunately both applications are closed source, which means that it’s impossible to be certain that all data will be sent through other users (proxies) in the BitBlinder swarm and not directly to the Internet. For the same reasons, Flash is unavailable in the bundled version of Firefox.

Another trick up BitBlinder’s sleeve is the development of techniques to bypass web filters.

“BitTorrent encryption is pretty good at avoiding ISP level restrictions but it doesn’t do much for things like avoiding university or corporate firewalls. One of Tor’s goals is to circumvent the Great Firewall of China and we hope to make BitBlinder even better,” explained Josh. “Filters generally work by either blocking ports, a certain IP address, or by inspecting the traffic itself for specific protocols. We’re working hard to make BitBlinder effective against all three of these methods, but we still have some work to do on these features, so results may vary.”

Since BitBlinder has an anonymous browser, it should prove useful if you don’t want your employer knowing what you’re doing on Facebook or other social networks, for example. Indeed, if these sites are blocked it’s possible to use the BitBlinder network to access them. Of course, the anonymity would also be useful for signing up to and using the HTTP element of a torrent site.

Inevitably there are some issues with an anonymity system such as BitBlinder, and they parallel those experienced by users of TOR. Any traffic generated inside the BitBlinder network eventually needs to escape to the wider Internet. In order to facilitate this, some users need to act as an exit point. In basic terms, this means that an exit node operator’s IP address will be associated with the traffic leaving the network.

Before panic sets in, this is not necessarily bad news. Acting as an exit node provides the operator with plausible deniability, since they will have no idea what data is passing through. It would also be difficult to say if the data leaving that PC had originated from there or elsewhere, extending the deniability of their own traffic too. And it’s not as if that user’s IP address wasn’t perfectly visible already before BitBlinder came along.

For most users, however, opting to act as a beginning or middle proxy in the BitBlinder network means that no-one outside can see any traffic emanating from their PC and the good news is that this internal traffic still adds upload/download credit to the user’s account.

Time will tell if BitBlinder lives up to its dreams (and everyone else’s) but from what we’ve seen so far in the beta version, things are looking very promising indeed. That said, remember folks this is a beta and it is likely people will uncover bugs so please be patient and consider allowing the app to send crash reports, it will help the team a lot.

BitBlinder can be downloaded here – don’t forget to register and please read the instructions on how to forward ports etc, it will be good for your ratio.

New users should note that invite codes will be sent out at a controlled rate. Early adopters will be able to register fairly quickly but as more and more people apply, the longer the wait will become. This is merely to ensure a healthy network with an adequate number of quality proxies.

Source: Free Anonymous BitTorrent Becomes Reality With BitBlinder