Questions tagged [circuit]

A Tor circuit is a private network pathway built incrementally as a series of encrypted connections through relays on the network.

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Automated script for selecting fast TOR circuit?

I noticed a significant variance in bandwidth with different TOR circuits. Some are fast enough for streaming HD videos, while others take ages just loading web pages unless Javascript is deactivated. ...
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Does Tor daemon build multiple circuit when multiple clients connects to it?

Let's say I have a Tor Browser, nodejs and curl all sending requests using Tor's SOCKS5 proxy. Will requests from different clients routed through the same exit node? Or does each client get their own ...
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Why is the pub-key of diffie hellmann from Alice (OP) to Bob (OR) encrypted?

For building a circuit Alice contacts Bob (OR) and send her pub diffie-hellmann key encrypted with Bobs pub key. Bob sends his public-diffie-hellmann key and the session key hashed ("only" TLS ...
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Hacking Tor in my spy/thriller novel

Question: What are plausible circumstances in which one could hack an individual Onion Router to discover the location of the previous router? Reason: I’m an aspiring writer, working on a spy-...
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Auto - New Tor Circuit For This Site or New Identity

Building a JS chat for local network. Users are based on IP addresses. I want to open a URL in Tor Browser with a new circuit or a new identity after a set of defined seconds automatically. Is there ...
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Tor and Submarine communications cables

According to the papers leaked by Snowden, the NSA has the ability to intercept communications carried by submarine cables. My question is: does Tor also use these submarine cables? So, can Tor be ...
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Looking for Conflux code

I'm looking for source code of Conflux tool, published here. There's statement: 'We implemented the multipath construction and cell sequencing, buffering, and reordering in the Tor source code (...
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138 views

Tor's circuits behaving in an unusual manner

As I understand it, Tor uses the same circuit for about 10 minutes or as specified in the MaxCircuitDirtiness option in the torrc file. However, I noticed something strange while trying to use curl to ...
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Tor browser 6.5-A1 not showing circuit

i just updated Tor to the newest version (6.5-A1) and i have a problem. since the update, for every site, when i try to look at the circuit, i just see this: While it should be like this While its ...
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Tor Circuit failed to be created: destroyed

Okay, so I'm running a few experiments on Tor for a course project. I keep on changing different relays to see the effects on response time. But on some of the circuits, I keep on getting this ...
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399 views

Tor failed to establish a Tor network connection [duplicate]

Please help me! Tor gets as far as establishing a circuit, then fails. It says: Tor failed to establish a Tor network connection. Establishing a Tor circuit failed (connection timeout - 161.53.160....
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Tor circuit display in Tor Browser - how can it?

If all the nodes in a Tor circuit aren't supposed to know about each other, how can the Tor Browser display the whole circuit? If it knows all the addresses in the chain, can't someone else pull that ...
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First Circuit Server Constant (New Identity) [duplicate]

No matter what I am trying, I can't change the first server in the circuit. Neither "New Identity" nor "New Circuit" or closing the browser will change it. I tried two different tor instances from ...
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How can I randomize the entry guard?

Tor is moving to a single entry node implementation (#11480). I think that's because it's statistically feasible for an adversary to deploy entry and exit nodes and perform a correlation attack by ...
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209 views

Why Atlas does not show all exit nodes Tor connect to simultaneously?

At times Tor connect to several circuits (and different exit nodes) to support multiple protocol simultaneously, In these cases, why Atlas does not show all exit nodes Tor connect to simultaneously? ...
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Weighted Bandwidth for Rendezvous Points

I wonder how the WeightedBandwidth for Rendezvous Points (RPs) is calculated. I know, its a bit complicated, because RPs are chosen in a lot of different ways: Tor tries to reuse existing circuit ...
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Tor and circuits

I'm running Tor and need to know an IP address of my latest node. There is my config: # This file was generated by Tor; if you edit it, comments will not be preserved # The old torrc file was ...
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How to make Tor use italian only proxy? [duplicate]

I need Tor to use proxy only from Italy,how can I do that?
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what is the command in torrc file to log the number of circuits through my Tor relay? [duplicate]

Could anyone tell me what command should I write in torrc file so that I can log how many circuits are connecting through my Tor relay?
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Tor Circuits vs Channels vs Connection

With respect to Tor source code, what is the different between 1- Circuits 2- Channels 3- Connections And how do they relate to each other? Thanks.
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Tor exit node is Forum spammer [closed]

When I researched the exit node for the tor circuit I was given, I saw that it was a forum spammer. Even after changing my identity , the new exit node was still listed as a forum spammer. Is this ...
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58 views

Is it possible to make a program that will use different circuit for each request? Even if the requests are parallel?

I want to make a program that will use new circuit for each request (even if the requests are parallel) to avoid linkability. Is it possible?
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398 views

Entry Node exactly the same for days. 100 request to change and remains same [duplicate]

I'm worried. I connect to exact same entry node for days. Even after 100 new circuit requests, it hasn't moved. Am I being watched? How can I get TOR to connect to different first node?
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62 views

Why are entry nodes allowed to know that they are entry nodes?

Right now, a user can be deanonymized if an attacker controls the entry node and the exit node in a Tor circuit. The attacker can discover the IP of the originator, and the site they are accessing. It ...
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62 views

Has Tor Browser stopped displaying circuits?

I started using Tor v4 most intrigued by the display of the circuit path it followed, 4 nodes from at least 2 countries and usually 3 or 4. Now at v9 I don't see it anymore. Has display of the ...
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The problem about stem's new_circuit and extend_circuit?

I have read the document of Stem. I notice that new_circuit() and extend_circuit() can create new circuit.However,I have two problems: I can't make sure when I create a new circuit, will the old ...
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561 views

Differences between Onion Routing (Public Key) and Tor-Circuit (Session Key)

I have a hard time understanding how a message is transmitted, when the Public Keys are used and when the Session Keys. Tor Client connects to a directory server to get a list of active relays & ...
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794 views

Tor 8 no longer has Green Onion with option to change circuitcharley

My PC auto-updated to Tor 8 and I no longer have the green onion on the left side of the browser where I can check my circuit or change to a new circuit. Can I roll back to an earlier version of Tor ...
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customizing tor browser bundle

I want to create a browser bundle that supports the following things: there is a standalone tor process that i launch it using the controller connection from the stem library and i manually connect ...
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2k views

Why Tor doesn't support UDP?

Tor relays reject UDP packets except DNS requests. What is the technical reason behind that UDP is not routed through Tor circuit? Are there limitations with UDP protocol that it cannot be routed ...
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would torify use the same circuit as tbb when both are in operation?

Let's say I'm using both tbb and torify at the same time. For e.g. I'm using tor to browser/look at tor.stackexchange.com. At the same time I am running torify on a different url say https://aaa.bbb....
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54 views

OR Forward and reverse keys

It's my understanding that between the user and an OR there are two symmetric keys, one for sending data forward and another for receiving data. These keys are forged according to either TAP, which ...
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232 views

Can I configure tor always to try to use three DIFFERENT countries?

I tried to find an answer to this question but I found none. I think it would be reasonable to be able to use always three DIFFERENT countries in a circuit if possible. Just as simple as that. And it ...
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Implementing the tor protocol, based on tor sources and a few clarifications

Im trying to implement a simple c# application that is based on tor protocol, without identity changes every few minutes etc. just to create a circuit and make a request. I created the onion hidden ...
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Circuit failed to establish

I'm trying to build my own circuits using stem: These are three different error messages I get from time to time: Circuit failed to be created: DESTROYED Circuit failed to be created: TIMEOUT Unable ...
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Displaying the Tor circuit via terminal

I'm using Debian 7 server. I will try to use proxychains. Is it possible to see the current Tor circuit (IP addresses) via terminal?
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Are individual circuits exposed in inter-relay traffic?

There are thousands of Tor relays. And so it's arguably impractical for each relay to maintain persistent connections with all of the others, even without padding traffic. At the other extreme, a ...
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How Tor is build and how can someone build something Tor/overlay network or routers?

Things I know: I have been using Tor for like a few years now, and I have a good idea of how "Tor/Onion routing" works. I have gone through the Tor's original paper (by Nick and Roger) and ...
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How to modify the TOR connection timeout?

TOR seems to drop the initial choice and select a new guard node, when it fails to build a circuit/connect to a guard node within a certain time interval (which is in the order of 30-60 seconds). Can ...
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How can i open a new Window at Tor Browser that has an new Circuit without click on the new Circuit Button?

I want open new windows directly with new circuit build
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Integrating Tor Browser and Python to get the same circute

This is a cross post from my StackOverFlow question(also I little edited). Ok, my question is quite straightforward: I want to use Python to make automated requests with stem (or any other library ...
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Tor Guard Selection

so I am trying to understand the Tor path selection in more details especially for the entry guard. So i read in the path-spec.txt that there is a bandwidth weighted entry guard selection where the ...
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Higher probability that nodes with higher bandwidth are selected for circuit

In the course of my master thesis I am currently trying to rebuild a simplified version of the selection algorithm from Tor. During my research, I found the following selection algorithm in some ...
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How to view circuit details (including security keys) in Tor?

I wonder if its possible to find the session keys for Tor's circuit for a hidden service such as facebookcorewwwi.onion (or public site)? There are 4 keys used in connecting to a site: Key between ...
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Why don't we have more than one entry node per tor circuit?

A typical tor circuit has Browser -> entryNode(A) -> relay(B) -> exitNode(C) -> Server This is prone to timing related attacks if both entryNode and exitNode are controlled by the ...
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Are relays chosen by location proximity, e.g. county, for circuit building?

Are relays chosen by location proximity, e.g. county, for circuit building? I know that there exists some rules but I didn't read anything about location. If the location of a client is not ...
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148 views

Does my internet speed matter?

Does my internet speed matter if I use same circuit, nodes/hops? There are 3 PC's: 1st one is connected to 100Mbps internet speed 2nd 500Mbps internet speed 3rd 1Gbps internet speed In case all of ...
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How to run TOR with circuits shorter than the default 3-node circuits

Anonymity is not required for a certain task but a changing exit node is. Might save some public resources and get a shorter ping time by running TOR with 2-node or single-node circuits. How can this ...
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How to view list of circuit IP addresses and countries on Android?

In Tor browser for Windows, I can view the list of the current circuit's IP addresses and the countries in which they are located, by clicking on the little circled 'i' icon just to the left of the ...
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Track Tor circuit via ISP logs

I have some question about the very basics of tor, as this keeps bugging me now for some time: As far as I know every tor node is only aware of the ip address of the following node. For example the ...