Questions tagged [relay-adversary]

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1answer
35 views

Do the Tor network nodes store the clients' IP by default?

Imagine the following police investigation: Investigators request information from, for example, Facebook, from a certain profile. Facebook delivers the IP address associated with the profile, and ...
4
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2answers
499 views

What is the point of a relay family?

Consider the following recommendation, taken from the official FAQ : You should set MyFamily if you have administrative control of the computers or of their network, even if they're not all in ...
5
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1answer
78 views

What if a powerful adversary controls a lot of relays?

Given that anyone can set up a relay server, what if a powerful adversary sets up a lot of relays around the world?
3
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1answer
235 views

Does a Tor node “know” what layer of the onion they are in?

I think a Tor circuit looks like this when sent Key1.Encrypt(Key2.Encrypt(Key3.Encrypt(Key4.Encrypt(Key5.encrypt(DATA))))); ... where KeyX represents the RSA or ECC encryption of a node in the chain....
6
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1answer
184 views

How can we get more community-operated (non-NSA) Tor relays set up?

One of the greatest threats I can see to the anonymity of the Tor network and its users, is NSA/GCHQ (etc.)-operated Tor nodes. No matter how state-of-the-art 'good practice' a Tor user adheres to - ...
2
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1answer
56 views

Probability by bandwidth: Using multiple or one Relay with equal total Bandwidth

Is there a higher probability, if an attacker is using one OR of bandwidth 5 MB/s than 5 ORs with each 1 MB/s? If you calculate the probability of picking a certain OR, you can use the weighted ...
0
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1answer
16 views

Cannot find the Amazon E2C Image

cloud.torproject.org describes an image that can be used in Amazon E2C service. It mentions that this image is already configured with package updates and port forwarding. The images have been ...
2
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1answer
4k views

Editing the torrc file to set up a Tor Exit Relay in Ubuntu 14.01 LTS server

I would like to know the changes required in the following torrc file to configure tor running on my server to be a Tor relay and or a Tor Exit relay. I think I would first start with a Tor middle ...
1
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0answers
63 views

Is traffic analysis easier for relay adversaries than for network adversaries?

I gather that relay adversaries employ traffic analysis to determine that two of their relays are part of the same circuit. And I vaguely recall a comment, perhaps on the Tor Project blog, that ...