Questions tagged [encryption]

This tag is to be used for questions about the encryption of Tor traffic or questions about encrypted data related to Tor.

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33 views

Security question regareding Tor & Anonsurf

So I have been using Parrot Security lately and I have a couple security questions regarding Tor/Anonsurf. First, when I boot up Parrot and open the Tor Browser and click connect, Tor connects, then ...
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55 views

Tails Encrypted Persistent Storage access time

How do I find the last time a Tails Encrypted Persistent Storage was accessed? Also is it possible to find the last time Tails was started?
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124 views

Can you have a setup with both VPN over Tor and Tor over VPN

Is it possible to first connect to a VPN (like NordVPN or another VPN which supports VPN over Tor) that is preconfigured for Tor and then connect to a VPN once you are browsing in Tor to encrypt both ...
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38 views

Trouble with decryption (tails 4.12)

I have been trying to decrypt messages with public pgp keys (all of which are imported into my key ring) and I always get an error saying “decryption failed no secret key” this is a problem as the ...
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82 views

What is the key blinding function used in the hidden service protocol v3?

I've read the rend-spec-v3.txt document which is supposed to be the specification for the v3 hidden service protocol. The document makes several references to a key blinding function that takes in an ...
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55 views

Tor experimentation with replay traffic

I want to replay some real traffic and send it through Tor to collect Tor encrypted traffic. From what I have read so far, the shadow simulator or a private Tor testbed seem to be the best and safest ...
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55 views

Can the Last Node See My Private Data?

I have recently started learning about TOR. One concern I have is that the last node can see my private data. For example, let's say I use TOR to create a Facebook account. As part of the create ...
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70 views

Is it possible to find encryption key in Tor Browser?

I'm doing a presentation on Tor. Is it possible to capture and find keys and decrypt data.
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200 views

Is HSDir based attack is still possible nowadays? +Need some info

I've read some information from 2014-17 about attacking possibilities which have or had nodes are called ''HSDirs'' At first what i need to know, HSDir node it is also ''exit'' or third node from ...
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99 views

Can the attacker's malicious node see the full link of .onion sites users have access to?

If we talk about .onion sites only, can the bad nodes see the part of site's link? Like "example.onion/" or full link like "example.onion/user404/data/page/example123.txt"? I don't talk about IP of ...
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74 views

Need some details about relays between user and onion sites

Can someone explain some things: Is all trafic between client and .onion server encrypted 6 times in either direction because of chain: Client -- [1 node ip -- 2 node ip -- 3 node ip] -- [3 node ...
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511 views

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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1k views

What encryption does Tails use for persistent storage?

I've gathered that persistent storage in Tails uses LUKS, but I can't find the specifics of the encryption, e.g. the algorithm. Most of the Tails website and other various places is scant with ...
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350 views

Is Tor completely anonymous?

I saw that tor has three layers of encryptions and, plus a VPN I set myself on my computer. How can someone trace back to my real IP? Is this completely anonymous?
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50 views

Specifications for Tor security in the transmision of Data

I am doing a School project based on the in depth security of tor and i can't find the up-to-date security protocols the tor uses. i have found an old thread saying it uses RSA1024 for encryption but ...
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778 views

What encryption is actually used by tor circuits?

I'm trying to determine what encryption (asymmetric and symmetric) Tor actually uses these days for client circuits. I've read the changelogs and only seem to see nebulous statements about having a ...
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197 views

Is Tor traffic using the TAP handshake vulnerable to retroactive decryption?

Assume an attacker with a record of Tor traffic between a client and guard has precomputed the 1024-bit Oakley group for Diffie-Hellman used in the TAP protocol. This would allow them to rapidly ...
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167 views

Why site security information shows "Connection Is Not Secure",eventhouth web address show HTTPS?

Is it normal that the site security information always shows "Connection Is Not Secure" on all websites even when the web address shows https.The website identity always shows "This website does not ...
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952 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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Is Mix-Kaskading based on the Onion-Routing?

[Note: I'm no native english speaker] 1981 David Chaum first introduced Mix-Networks. 1995 Tor began its life as a research project in the Naval Research Laboratory (NRL), where 1996 three ...
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79 views

Have global adversaries ever been able to decrypt hard drives storing .onion material encrypted by Veracrypt?

I'm planning on encrypting my entire HDD - which includes Tor .onion service content - using Veracrypt, the latest in encryption technology. Has Veracrypt been known to successfully encrypt .onion ...
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3answers
218 views

ultimate encryption and protection of sensitive data

I have many sensitive documentation which I am scared to lose or get somebody accessed. My question would be what is the ultimate encryption protection? I have read lot of articles saying that for ...
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1answer
45 views

Rekeying a Tor circuit

Is it possible to rekey a connection between a Tor client and a relay? By rekey I mean perform the usual x25519 key exchange to change the session key on the fly, without tearing the circuit down.
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478 views

Security: Can an exit node be set up with an encrypted connection to the service?

So far it seems that all exit note-to-server connections are communicated in plaintext. Is there a way to add something to a Linux or Windows server so that very last hop is encrypted? Or ...
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448 views

Me->VPN->Tor->Socks5->Tor: Where would a honeypot do the most damage?

Since most vpn's are untrustworthy, and Tor exit nodes can be hosted by malicious entities, im trying to create a trustless chain of anonymization and encryption. I feel as there might be flaws in my ...
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426 views

typical way to run tails virtualized on ubuntu?

To run on Ubuntu just use KVM to run tails? If you are a bit lazy like me, the idea to reboot your system seems inconvenient. But with the help of QEMU there is an easy to use alternative ...
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2answers
565 views

Tor encryption combination

I'm trying to understand exactly how Tor builds a circuit with encryption. I've read the Tor design literature and have a pretty good grasp on it, however I'm left with the following misunderstanding. ...
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5k views

HTTPS Everywhere and Tor

I don't see an option to install the HTTPS Everywhere add-on on the Tor Browser. Is the HTTPS not needed on the Tor Browser? Does Tor encrypt one's data like the HTTPS Everywhere add-on? I'm new to ...
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tor browser stuck on establishing an encrypted directory connection [duplicate]

i'm trying to connect to tor browser with all my might with my college PC to get some E-books but it's stuck at tor browser stuck on establishing an encrypted directory connection i've tried to use ...
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I seem to be blocked, despite custom bridges. How can I get around this error? [duplicate]

3/29/2017 11:51:07 AM.600 [NOTICE] DisableNetwork is set. Tor will not make or accept non-control network connections. Shutting down all existing connections. 3/29/2017 11:51:07 AM.600 [NOTICE] ...
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177 views

Does all bridge users have the same encryption key?

When I connect to a bridge is my encryption key the same as the encryption key for all other users to the same bridge or does the encryption key differ from one user to another for that same bridge? ...
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3answers
263 views

Can the tor initial client to relay or bridge connection be MITM attacked?

I am not an expert in Wireshark but I was looking at some packets through Wireshark. I noticed that when using a relay that the connection to the directory authority the first few TCP packets such as ...
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289 views

Tor's encryption confusion and client to first node encryption

From what I've read the onion routing process goes like this: The client encrypts its traffic to the destination server and sends it to the first node (encrypted); The fird node encrypts it again and ...
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108 views

Encryption by EFS

I have the Tor folder in Desktop of Windows 10. If I created another folder, encrypt it by EFS and put the Tor folder inside of it, do I gain any advantage for security? I suppose temporary files ...
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518 views

Why does Tor only work on TCP?

Is it because of the nature of it's encryption protocol? I'm assuming there are other reasons as well, but I have not been able to find any information about it.
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336 views

Is there any vulnerabilities when using socks with tails?

In the tor manual under socks port it states “The SOCKS protocol is unencrypted and (as we use it) unauthenticated” Does the socks protocol used in the loop back interface only or does the Socks ...
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7k views

How does Tor obfs4 protocol and PTs work?

Could someone explain how have many countries and corporations managed to differentiate tor traffic from normal traffic, and how exactly the obfs4 protocol (Or any other Pluggable transports) help ...
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1answer
149 views

Tor and encryption [duplicate]

Tor [network] encrypts data itself? Or does it only Tor Browser Bundle? For example, if I use an external client to connect to the Tor network and direct all traffic over Tor and use a different ...
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769 views

Why do Tor hidden service operators bother with SSL/TLS encryption?

Tor hidden services have an asymmetric key pair. That seems like it ought to do the job of authenticating the server and securing the connection to the client. When Tor clients reach out to normal ...
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1answer
558 views

Are all tor exit nodes known?

A normal tor chain is like this : Client -> Tor Node -> Tor Node -> Tor Exit Node -> Server Is it possible to have this schema ( two chains ) : Client -> Tor Node -> Tor Node ->...
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1answer
841 views

Tor Encryption Standards

I'm looking for up-to-date information on Tor encryption standards, and I can't seem to find anything newer than 2013. What encryption algorithms does Tor use? What is the reasoning behind keeping ...
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1k views

Sniff Tor onions address from a relay

Currently working on a Tor study, I would have a question regarding the tor hidden services. I read lot of technicals papers to better understand the tor working on this point, like these good ...
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1answer
7k views

What encryption algorithms does Tor use?

I am building an application that will be connected over tor, using onion services. I just realized that the file generated by Tor that contains the private key of the hidden site is only RSA 1024bits....
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91 views

TOR and Orbot, possibility to add in dynamic AES encryption structure before data is send out?

I read on the documentation about the security issues on TOR, that it is ok if the website is running on HTTPS, but how about on Orbot and site that is not running on HTTPS? Even if it is running on ...
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112 views

VPN Router + Tor and 2nd VPN Local Machine Clarifications

Hello my question is I have my router configured to connect through a vpn (VPN A). Thus all Internet traffic on my network goes through a vpn. If I run tor on a local machine with a 2nd vpn (VPN B), ...
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1answer
579 views

How do I encrypt document via right-click menu in Tails?

I don't understand the procedure here. There are some options to choose from to encrypt the file, but then I can't decrypt it because I don't have the password. How do I create a password before I ...
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850 views

How does data go through Tor

I know how Tor works (mostly) but I want to know how data returns through Tor to the user. Example: I send a message from me (Bob) to my friend (Rob) and it goes to, let's say, 3 relays. Now, when I ...
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6k views

Do all .onion addresses use SSL/TLS?

Do .onion sites encrypt the information going through the exit node? Because a lot of them start with HTTP and not HTTPS.
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87 views

Why Tor node maintains TLS keys with every other Tor node?

I read that Tor proxy maintains key with each Tor node for encryption. Then, why does a Tor node maintains TLS keys with other Tor nodes?
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1answer
65 views

Are get variables encrypted when using Tor?

I'm relatively new to Tor and I was wondering if get variables in the address bar are visible to anyone other than the client and the server. Example: randomaddress.onion/login.php?a=47 Would ...