The service was based on two key ideas: first, to guarantee user anonymity during access to web services (e-mail, Websites, etc.) and, second, to allow them to bypass the filtering policies of their access provider (company, school, etc.). The service ceased to be available in 2010. It offered an anonymous peer-to-peer network, also based on Mix, where each Mix corresponded to a peer-to-peer node.įreedom Network ( ) provided a set of private proxies administrated by the Freedom operator. The Tarzan solution is no longer maintained. Mix nodes are provided by independent institutions (universities and public infrastructures) which have officially declared that they do not store traffic traces (log files). Users must download a free program, “JonDonym Anonymous Proxy” (JAP). It is based on the Mix solution described in section 4.4.2.2. The AN.ON research project ( ) aims to allow anonymous and unobservable use of the Internet. The aim of these projects is to provide Internet users with the ability to anonymize their connections. Other poorly documented solutions, such as Anonymizer ( ), are commercialized. The Tarzan and Freedom Network projects, which are presented briefly below, are no longer maintained. The Onion Router (TOR) and Anonymity.Online (AN.ON) are two software solutions currently available to Internet users. Maryline Laurent, Claire Levallois-Barth, in Digital Identity Management, 2015 4.4.2.3 Software solutions To use any other applications through the Tor network you need to set them up to use the Tor proxy settings. If you send an email to the target from your normal email client on your desktop, use another browser, instant messaging, or use P2P software you will potentially expose who you really are by your IP address. The online application being used by the Tor network in this configuration is the Tor browser. We are now ready to go online and start our investigation without being identified. The Tor project has a page you can go to that will verify that you are using the Tor network properly or you can go to one of the websites on the Internet that grabs your IP address like to identify what IP address you are exposing to the world. Previous versions of Tor required setting the proxy settings in your browser to use the Tor network, but this is all done automatically during the installation of the latest Tor browser bundle. Click on the executable file and the Tor project installs. Go to the Tor project website ( and download the current Tor Browser Bundle Windows installer. Using Tor in your investigations is as easy as downloading it and installing the Tor browser. We can use Tor to prevent a suspect webpage from identifying us. Our browsers can reveal our IP addresses, what kind of browser we are using, and its version. If you are investigating a webpage or website, we know that there is certain information that our browser tells that server or website about who we are and potentially where we are. So how does the investigator implement Tor during their investigations? Well, the simplest method is to use the Tor network to hide browsing activity. This is due to the increase in most users’ Internet bandwidth, the constant upgrading and improving of the Tor software and its easy integration into the popular browsers. Using Tor during online investigations is much easier now than in the past. You can still use the installed “Vadalia” (like the onion) package to proxy your own browser through the Tor network, although the Tor project no longer recommends this practice. The current Tor Browser bundle installs its own browser version that does not allow the user to change the proxy settings in the browser. Thus you have effectively hidden from the end website you are visiting or target user that you may be communicating with through the Internet (Please note this is an over simplification of the process and exact details of how the Tor network works can be found on the project website). The Tor network in its simplest description strips that information out and only provides the end user with an IP address belonging to the Tor network and not you. This exposure of your IP address is what can tell the target who you are and possibly where you are in the world. These servers easily identify who you are by your IP address so they can communicate back with you. Your browser normally makes a call out through your Internet Service Provider to servers on the Internet.
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