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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4
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1answer
291 views

Where along the path is encryption used?

This question is born out of two questions that I saw coming up. Is the connection between my computer and the Tor network encrypted? How does Tor encrypt my traffic before it sends it to the server?...
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2answers
478 views

Does Tor use compression?

Just curious if out of the box does Tor use a Gzip or any other kind of compression? I have done some searches but find only discussions about the Hidden Service directory.
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0answers
41 views

Pre-built circuits for a predicted port

According to the Tor documents, Tor builds 2 circuits for each predicted port. I checked the source code to find out how it can understand that it has already built one or two circuit for a predicted ...
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0answers
3k views

Tried for 120 seconds to get a connection to [scrubbed]:6667 (waiting for controller)

I'm running some experiments using the stem library where I change circuit paths fairly frequently. Every so often, I get a stream detached event and a Socks5Error: 'TTL Expired' in my Python script, ...
4
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2answers
469 views

How many streams does Tor attach to the same circuit?

How many streams does Tor attach to the same circuit, i.e. when Tor think that it is a time to build a new circuit? I know that the lifetime of a circuit is 10 minutes (for new connections). But ...
4
votes
1answer
181 views

How many preemptively built circuits?

I want to know how many preemptively circuits Tor can builds. I got confused about it when I read "Tor Path Specification". According to this article, at the startup Tor builds 3 clean circuits, but ...
7
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1answer
2k views

How to force Tor to use just one circuit?

We use Stem's launch_tor_with_config with the following config and then close all circuits opened by it (with close_circuit). MaxCircuitDirtiness and NewCircuitPeriod: tens of hours ...
3
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2answers
2k views

Can Tor change circuit while accessing a webpage?

In that case, it should download the page from the beginning because the TCP connection was closed, right? If it's not the case, how does Tor know when the site has finished loading?
9
votes
1answer
145 views

Does Tor take node age into consideration when building a circuit?

I've seen this for a while, but in my experience Tor seems to select well stablished nodes (whose uptime is >60 days) but in the specifications this is not shown. It's just that the current list of ...
1
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1answer
585 views

Is CircuitBuildTimeout saved through sessions?

In the Tor manpage I read about CircuitBuildTimeout. It is set to a default value of 60 seconds. However usually also LearnCircuitBuildTimeout is set. This enables adaptive learning of those timeouts. ...
11
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2answers
960 views

How many distinct Tor circuits are possible?

Given the current relay census, and assuming a standard Tor Browser Bundle installation, approximately how many distinct Tor circuits are possible? Once entry guards have been chosen, approximately ...
1
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1answer
161 views

Where is cookiepath of tor? [closed]

I am working on tools for change identity of tor every 3 minutes. But it require a cookie path of tor. I follow this one https://trac.torproject.org/projects/tor/ticket/4881 but didn't find its yet. ...
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2answers
158 views

How does Tor pass my traffic around and should I be worried about malicious relay operators? [closed]

I am not sure how does Tor work, how safe is it as I heard that some relays are ran by bad people or government agencies.

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