Non Anonymous Onion Encryption and NAT Traversal

From Kicksecure
Jump to navigation Jump to search

Your support makes
all the difference!

We believe security software like Kicksecure needs to remain open source and independent. Would you help sustain and grow the project? Learn more about our 10 year success story and maybe DONATE!

Nontanonymous213132.jpg

Using Tor for Onion Encryption / Authentication and NAT Traversal Only - Without Anonymity!

Ambox warning pn.svg.png Not anonymous!

Ambox warning pn.svg.png Documentation for this is incomplete. Contributions are happily considered! See this for potential alternatives.

Introduction[edit]

It is possible to make Tor on a server using a single Tor hop (only one Tor relay instead of three) by using Tor configuration options HiddenServiceNonAnonymousMode 1, HiddenServiceSingleHopMode 1. This is non-anonymous but faster. Server should use Onions Services Authentication. The advantage of this is to have a server which is:

  • reachable (for users having access to Tor) for NAT traversal, i.e. it works behind common NAT routers.
  • capable to secure inherently insecure protocols (such as VNC) by using the encryption / authentication provided by Tor Onion Services

Independently, if clients prefer speed over anonymity, they can configure Tor in Tor2Web mode, which means outgoing Tor circuits will have a length of one rather than three.

These two options combined reduce a 6 hop Tor connection to a 2 hop Tor connection. It's not anonymous, but providing NAT traversal as well as onion encryption / authentication.

https://forums.whonix.org/t/should-we-use-hiddenservicesinglehopmode-for-whonix-org-serverarchive.org

Server Side[edit]

Open /usr/local/etc/torrc.d/50_user.conf.

If you are using Kicksecure ™ inside Qubes, complete the following steps.

Qubes App Launcher (blue/grey "Q") → Kicksecure ™ ProxyVM (commonly named kicksecure) → Tor User Config (Torrc)

If you are using a graphical Kicksecure ™, complete the following steps.

Start Menu → Applications → Settings → /usr/local/etc/torrc.d/50_user.conf

If you are using a terminal-only Kicksecure ™, complete the following steps. sudo nano /usr/local/etc/torrc.d/50_user.conf

Add.

HiddenServiceNonAnonymousMode 1 HiddenServiceSingleHopMode 1 SocksPort 0 HiddenServiceDir /var/lib/tor/hidden_service/ HiddenServicePort 22 127.0.0.1:22 HiddenServicePort 5900 127.0.0.1:5900 HiddenServiceVersion 3 ## syntax: ## HiddenServiceAuthorizeClient auth-type client-name,client-name,… ## The auth-type can either be 'basic' for a general-purpose authorization protocol or 'stealth' for a less scalable protocol that also hides service activity from unauthorized clients. ## Valid client names are 1 to 16 characters long and only use characters in A-Za-z0-9+-_ (no spaces). HiddenServiceAuthorizeClient stealth 1234567890123456

Save and exit.

Client Side[edit]

Update the package lists.

sudo apt update

Install Tor's build dependencies.

sudo apt build-dep tor

[1]

Create directory ~/tor-src.

mkdir ~/tor-src

Change directory to ~/tor-src.

cd tor-src

Download the Tor source package.

apt source tor

Change directory to Tor source directory.

cd tor-*/

Open file debian/rules in a text editor of your choice as a regular, non-root user.

If you are using a graphical environment, run. mousepad debian/rules

If you are using a terminal, run. nano debian/rules

Change:

dh_auto_configure \ $(confflags) \ --prefix=/usr \ --mandir=\$${prefix}/share/man \ --infodir=\$${prefix}/share/info \ --localstatedir=/var \ --sysconfdir=/etc \ --disable-silent-rules \ --enable-gcc-warnings-advisory

To:

dh_auto_configure \ $(confflags) \ --prefix=/usr \ --mandir=\$${prefix}/share/man \ --infodir=\$${prefix}/share/info \ --localstatedir=/var \ --sysconfdir=/etc \ --disable-silent-rules \ --enable-gcc-warnings-advisory \ --enable-tor2web-mode

Open file src/or/config.c in a text editor of your choice as a regular, non-root user.

If you are using a graphical environment, run. mousepad src/or/config.c

If you are using a terminal, run. nano src/or/config.c

Change

V(Tor2webMode, BOOL, "0"),

To

V(Tor2webMode, BOOL, "1"),

Build the Tor package.

debuild

[2]

Footnotes[edit]

Unfinished: This wiki is a work in progress. Please do not report broken links until this notice is removed, use Search Engines First and contribute improving this wiki.
  1. ↑ sudo apt install zlib1g-dev libevent-dev asciidoc xmlto libsystemd-dev
  2. ↑
Retrieved from "https://www.kicksecure.com/w/index.php?title=Non_Anonymous_Onion_Encryption_and_NAT_Traversal&oldid=70121"