Tor (short for The onion router) is a system intended to enable online anonymity. Tor client software routes Internet traffic through a worldwide volunteer network of servers in order to conceal a user's location or usage from anyone conducting network surveillance or traffic analysis.

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Tor traffic correlation attacks by global adversaries

I recently came across a paper called "Users Get Routed: Traffic Correlation on Tor by Realistic Adversaries" (Aaron Johnson et al) ... which seems to be saying that adversaries (like the NSA) that ...
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230 views

Encryption key exchange for Tor

I've been studying how Tor works - including the great QA "Why can a Tor exit node decrypt data, but not the entry node?". I understand the concept of onion routing and multiple layers of ...
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194 views

Torception: An onion within an onion

With the recent takedown of silkroad, I am pondering on how anonymous you actually can be on the Tor Network. Other more legal or moral uses such as anonymity as a right, or avoiding censorship. These ...
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3answers
414 views

Is there an anti-proxy detection available?

Sites like Wikipedia and Google (among others) don't let you sign up through a proxy or TOR (at least with Google, you have to provide SMS verification if you sign up through proxy.) Somehow they ...
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2answers
223 views

Why would Tor not be vulnerable to this easy-sounding attack?

I'm thinking of this attack on Tor, which I'm sure won't work, as it is much too simple. Mr. Blackhat sets up lots of intermediate nodes. However, whenever TCP connections come in, they are given ...
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581 views

How actually is Tor hidden service hidden from public?

Let's suppose I have a web server X, listening on port N for instance and configured as a Tor hidden service. How and where is implemented its' hiddenness from public access?
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709 views

Interesting article on a vulnerability found in Tor

This article describes how French researchers compromised users using Tor. I'm not sure I fully understand or agree with it. I don't see what Bit Torrent has to do with anything? I mean they start out ...
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3answers
1k views

How Tor, Privoxy, Vidalia and Polipo are getting together?

I realized that these applications are frequently used together. What is the role of each software in the mission of anonymity and privacy on the web? While I understand Vidalia is a GUI provider, I ...
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2answers
108 views

Can Tor nodes infect my computer with malware?

Can I get "hacked" by a Tor node? My computer is sending packets through the Tor nodes and receiving packets from them as well. Can I be sure that there are no Tor nodes that manipulate the packets ...
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62 views

How do two Tor relays communicate with one another?

Nodes don't know each other's IP address right? So how do they manage to address one another when it comes to sending data?
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6k views

Why is JavaScript disabled in the Tor Browser Bundle?

Didn't Tor create a local socks proxy? Why doesn't all the Web traffic go over this local socks proxy and why is JavaScript disabled in the Tor Browser bundle? If you would connect with firefox for ...
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1answer
2k views

How can I get the IP address for a ToR Hidden Service (HSP) with a .onion address?

I'd like to find out the IP address of a given .onion address. Is it possible for me to simply assign an exit node (that I control) to my client and just monitor it to determine what IP address ...
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675 views

Using tor with SET to bypass firewall policy?

I'm doing a credential harvesting attack using SET from backtrack. I want to sent a spoof email using an open relay server. However, any outbound connection for smtp is blocked by the firewall. I ...
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2answers
94 views

Can software projects which accept government funding be trusted?

You may know or probably are using TOR client which provides anonymity to the users but how can one be sure they are secure when browsing using this client and its network since its funded by feds? ...
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1answer
433 views

How to run a tor hidden service from home securely?

Another theoretical question about Tor: Imagine I am running a dissident web site as a hidden service. How can I reduce the chances that I get caught? Assume I am running the server from home, over a ...
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2answers
773 views

Using Tor from behind a Proxy (like Burp Suite)

I am interested in exploring a bit of the darknet, and I was wondering about the feasibility of running a Tor exit node from behind a local proxy like Burp Suite so that I could ID the destination ...
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2answers
62 views

How are packets received by a Tor exit node routed back through the Tor circuit?

What happens to the packets that the exit node sends/receives from the desired web server? Does each response packet get routed back through the Tor circuit (encrypting on the way) individually? If ...
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3answers
205 views

What are reasons why one shouldn't run Tor at a network level?

I've been considering proxying all web traffic on my network transparently through Tor and dividing up my bandwidth to share with the rest of the Tor network. Practically speaking, what are some of ...
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1answer
843 views

How was Lulzsec caught? [closed]

I saw that the leader connected to IRC without using TOR and they traced their IP address, but the identity of each member was supposed to be unknown to the others. So even if the leader was acting as ...
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2answers
128 views

Can ISP use MITM attack to “break” encrypted traffic?

Use connection of A and B as an example. Their communications were encrypted by Public Key Encryption. Before they exchange their public key, ISP MITM attacked. A got "B"'s public key (ISP generated) ...
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1answer
2k views

Is TOR used to perform hostile hacking?

I was wondering, if in order to protect myself from hostile hacking, should I consider access via TOR to be OK to perform e.g. havoc without anyone being able to track my ip back?
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4answers
241 views

Will the “Tor Browser” maintain a safe & anonymous internet connection over a computer's sleep/standby-and-resume cycle?

Will the "Tor Browser" maintain a safe & anonymous internet connection over a computer's sleep/standby-and-resume cycle? Is it safe to assume that when the computer sleeps the (internet) ...
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2answers
395 views

Tor - chain of connected nodes?

For a long time now I have been wondering how to find out where you actually connect to with Tor. The only thing you can do in Vidalia is show a Network Map of all available Nodes worldwide, which is ...
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1answer
167 views

What does Bluffdale mean for privacy?

I posted a question related to tracing webserver attacks over here and the responses got me google-ing. My understanding has always been that privacy is dead and that essentially there's always ...
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79 views

Anonymity of Bitcoin

I just asked myself that when you have bitcoin network, which is as we know "pseudo" anonym. Because of the transaction logs of the network (which are afaik endless), it seems that transactions are ...
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396 views

Downloading through Tor or not Tor?

If I download a file through TOR, will it be any different than if I download a file through a normal internet browser? I've downloaded stuff through TOR but it's always really slow. I was wondering ...
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38 views

Is this a secure way to connect with Tor?

I was discussing the use of tor with a friend, and he happened to suggest a way to remain secure when using applications on the terminal (Lynx, Nmap etc.) His suggestion was this: ssh-keygen -b 4096 ...
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163 views

Separating Apache and MySQL over Tor for security, performance, and reliability

I'm trying to set up a hidden web service over the Tor network, and I was thinking of making a configuration where my Apache server and my database server are located on different networks. I know ...
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303 views

Tor traffic seems to be exiting from different Tor exit nodes - is that expected?

I seem to be observing some odd behaviour whilst experimenting with TOR. It's entirely possible this is just my own ignorance as well, in which case I would appreciate some ...
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1answer
482 views

What's most standard way to secure internet connections and protect privacy?

It's common knowledge that Wi-Fi, or other Internet connections, should be encrypted via a VPN to be secure, and to hide our real IP address from intermediary network observers. However, one can't ...
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59 views

Tor IP and cookies in hidden services

So when you connect to tor it gives you a specific IP right, who's IP is this exactly? And when you visit an open website who's IP is visible to the site, mine or the exit node. And while you're ...
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42 views

Traffic anonymization through routing - software and algorithms

I stumbled upon an interview with "the grugq" in which he is talking about how hackers anonymize their traffic, i.e. hide their original ip address (- this is also what I will mean by "anonymizing" in ...
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80 views

What is known about recent zero day flaw with Tails up to this point in time and is Tails able to keep us anonymous from a global adversary? [closed]

Following is a excerpt from COMPUTERWORLD Yesterday, in talking about the zero-day vulnerability in Tails, Exodus Intelligence wrote: "We publicized the fact that we’ve discovered these ...
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1answer
367 views

Which is more secure - a VPN, a proxy-server, Tor, etc.? And why so, exactly? [closed]

I want to know how to ensure the most complete anonymity when browsing the internet and connecting to remote servers: I want to be as anonymous and secret as possible. I don't know exactly how VPNs ...
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614 views

Tor alternatives (change IP address often) [closed]

Are there any services that like Tor let you have many IP addresses and change them quite often? PS. The problem with Tor is that they list publicly their exit nodes, so its very simple to detect that ...
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990 views

Best practices for operating a Bitcoin-Qt client regarding netwok privacy?

As privacy is part of security, I know there is a Bitcoin SE here but they couldn't answer my question so I hope it's appropriate to ask it here. I don't ask about how to secure my wallet on my ...
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559 views

How can i protect myself from tor vulnerability on windows

Recently I came across an article regarding Tor. According to article there is speculation that the uncovered malware was used by a law enforcement agency to harvest the IP addresses of users ...
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53 views

TOR security if ISP blocks TLS channel?

If ISP blocks TLS channel while a user is using TOR, can he read the TOR traffic, since TOR uses TLS encryption ?
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1k views

tor and widecap dns leak

I am using a program that I coded in C#. All it does is use HttpWebRequest to request some pages and read info from them. I tried running it through Tor. I installed the Vidalia Bundle and Widecap. My ...
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121 views

How much I can depend on TOR to protect my identity, especially from outlook.com

guys I am using Tor browser from some time, few weeks maybe and I am still trying to determine the level of anonymity that the browser gives. I am using the browser to advertise a service that I am ...
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1answer
112 views

Is there a way of determining if tor is running on a remote machine?

In most of the companies, IT guys block some sites and by using TOR or other VPNs people walk around these blocks and gain access to blocked content. My question is, assuming TOR is running on ...
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188 views

Can Tor browser bundle be attacked like this?

When using the Tor browser bundle, you load the check.torproject.org on start. It tells you when there is a security update to downloads, and let's you click a link to get it. The way for users to ...
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1answer
64 views

Is running a TOR node from device in home network secure?

I want to run a TOR node using a small ARM device mini server. I already have a good firewall set but feel a bit uncomfortable when giving away my IP address to the open web by opening a port. If I ...
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1answer
60 views

Tor, PGP and Tor Entrance Nodes

Imagine alice posts her public PGP key on her website and bob encrypts a widget with that public key then sends it to alice over Tor. If alice's key is widely and publically available and an attacker ...
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2answers
46 views

how does tor protect data packets? [duplicate]

When you're using tor can't the third parties copy all the data that's going back to your device and decrypt it later, let's say I downloaded some doc files, the data has to come back to your device ...
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2k views

Can I use tor browser to make myself anonomous? [duplicate]

OK, I came across tor browser couple of years ago. Then I have been using tor browser some some reason or another. Normally I use Firefox or Google chrome but if I want to hide my IP then I use tor. ...
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1answer
144 views

Security risk among shared wifi users [duplicate]

I understand that the shared users on a wifi can see each other's HTTP traffic using proper tools. Is it possible for shared users to read HTTPS traffic or encrypted traffic like TOR ?
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1answer
114 views

Using a virtual machine for increased layer of privacy (w/ tor)?

One of my friends told me that running tor in a virtual machine Linux and then passing it through a proxy on the underlying Windows would provide in his words great security. Is this true?
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96 views

VPN tunnel in VPN tunnel

I'm wondering if there is an easy way to establish VPN tunnels through other VPN tunnels to get onion routing like properties (sender anonymity). Since VPN builds a tunnel, it should be easy to set up ...
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134 views

Check if i'm using a filtered network [closed]

I would like to know if the connection in my office is filtered, because i cannot access Faceboook neither Youtube but i can access google with no problems, but Tor i can access all the websites. i ...