Regarding Encryption....

Discussion of Transmission that doesn't fit in the other categories
digitlman
Posts: 3
Joined: Mon Jun 21, 2010 1:10 pm

Regarding Encryption....

Postby digitlman » Sat Jun 26, 2010 11:51 am

I haveTransmission set to ignore unencrypted peers.

If I have Transmission set to encryption, as well as setting the incoming port to port 21, will that ensure that the network cannot be ID'd as torrent traffic, and also ensure that no DPI can glean the file names or type of payload in the traffic?

Rolcol
Posts: 337
Joined: Sun Aug 10, 2008 8:00 am

Re: Regarding Encryption....

Postby Rolcol » Mon Jun 28, 2010 12:00 am

It's still possible to "guess" that the user is running bittorrent by the way the packets are moving.

JohnnyC35
Posts: 3
Joined: Sun Aug 01, 2010 11:09 pm

Re: Regarding Encryption....

Postby JohnnyC35 » Sun Aug 01, 2010 11:12 pm

I would like to know how to set up encryption as well. The encryption offered by transmission and deluge apparently aren't enough to thwart torrent blocking. Maybe the next version of either will offer RC4 strength encryption like Vuze

Level 5

Note: This is level is available from Azureus 3.0.2.3_B05 onwards.

Level 5 is only intended for people who have problems with a specific traffic shaping method employed by sandvine traffic shaping hardware, see Bad ISPs to discover if this applies to you. The premise of this method is to minimize the amount of unencrypted information leaked. To enable it select following settings:

1. Tools -> Options -> Connection -> Transport Encryption (See here)
* Enable require encryption
* Select RC4
* Disable both fallback checkboxes
2. Tools -> Options -> Tracker -> Client
* Enable Do not announce the listening port to the tracker
* Set the peer limit to a low figure, start with 1 or 2
* set the Minimum time between tracker announces to 900 for example
3. Adjust DHT settings (2 mutually exclusive alternatives):
* Disable the DHT:

Go to Tools -> Options -> Plugins -> Distributed DB and uncheck Enable the distributed database

* Try to get more peers via DHT:

Go to Tools -> Options -> Plugins -> Distributed Tracker and uncheck Only track normal torrents[...]

4. Try to seed a torrent you haven't seeded within the last few hours or so before applying these settings

lazybones
Posts: 219
Joined: Sun Jan 24, 2010 12:41 am

Re: Regarding Encryption....

Postby lazybones » Mon Aug 02, 2010 1:57 am

It is not that they are breaking the encryption but detecting the behavior of the protocol, the only way past that is for a full tunnel out of your ISP to a proxy before making the connection, and that gets slow really fast.

Bittorrent does some specific things, such as going to a tracker, which can be easily detected or built into a blacklist. Also DHT for P2P has to send out at least the first part of its handshake a specific way.. This can also be detected.

It really depends how good the ISP Deep packet detection is.

JohnnyC35
Posts: 3
Joined: Sun Aug 01, 2010 11:09 pm

Re: Regarding Encryption....

Postby JohnnyC35 » Mon Aug 02, 2010 10:41 am

the only way past that is for a full tunnel out of your ISP to a proxy before making the connection, and that gets slow really fast.


so does Vuze use either of those via the RC4? I get slow speeds not using it but once it is enabled and I reset mdm/router the speeds are back up? I just figured if one program is able to battle sandvine then others should be able to

JohnnyC35
Posts: 3
Joined: Sun Aug 01, 2010 11:09 pm

Re: Regarding Encryption....

Postby JohnnyC35 » Tue Aug 03, 2010 12:08 am

was able to fix my issue of sandvine and bloaty Vuze by using Lince.

Jordan
Transmission Developer
Posts: 2311
Joined: Sat May 26, 2007 3:39 pm
Location: Titania's Room

Re: Regarding Encryption....

Postby Jordan » Tue Aug 03, 2010 8:22 pm

JohnnyC35 wrote:I would like to know how to set up encryption as well. The encryption offered by transmission and deluge apparently aren't enough to thwart torrent blocking. Maybe the next version of either will offer RC4 strength encryption like Vuze

You certainly have been busy making this claim -- here, and in the Vuze forums, and in the Linux Mint forums.

To clarify a misconception -- Deluge and Transmission both have RC4 based encryption, same as Vuze. The encryption spec for BitTorrent is well-defined and implemented by all the major players.

In fact, the Lince application you're advocating uses the same bittorrent engine as Deluge, whose encryption you complained about in your Mint post.


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