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Protection of Privacy on the Internet

JAP makes it possible to surf the internet anonymously and unobservably.

Due to recent events, we would like to be sure to point out, that the JAP software is in development and therefore does not yet offer maximum protection. (see below ... )

Without Anonymization, every computer in the internet communicates using a traceable Address. That means:

• the website visited,
• the internet service provider (ISP),
• and any eavesdropper on the internet connection

Info: Leaving a data trail online...

How it works

Instead of connecting directly to a webserver, users take a detour, connecting with encryption through several intermediaries, so-called mixes.

Info: JAP uses a predetermined sequence for the mixes. Such a sequence of linked mixes is called a mix cascade. Users can choose between different mix cascades. - more...

Since many users use these intermediaries at the same time, the internet connection of any one single user is hidden among the connections of all the other users. No one, not anyone from outside, not any of the other users, not even the provider of the intermediary service can determine which connection belongs to which user.

Info: A relationship between a connection and its user could only be determined if all intermediaries worked together to sabotage the anonymization. - a detailed description of mixing principles...

The intermediaries (mix providers) are generally provided by independent institutions which officially declare, that they do not keep connection log files or exchange such data with other mix providers.

It is also planned, that independent watchdogs, who work in the name of the JAP users, will insure that the mix providers hold to their official declarations.

Download JAP

Attention! The first release of JAP is downloadable free of charge and already protects your privacy against most observers like your ISP, your network operator, or your boss. However, this version does not yet achieve the full security and anonymity that we strive for. It does not protect you against an adversary who has the capability to observe all communication links on the Internet.

If you'd like to be informed about newer versions and other important changes to JAP, please subscribe to our mailing lists.

Please choose your operating system:

• Windows 95/98/ME/NT/2000/XP
• Apple Macintosh
• OS/2
• Others (especially Unix/Linux)

Help and FAQ

Help is available Online or can be downloaded as a PDF Document. If you still have questions, take a look at the FAQ (Frequently Asked Questions).

Development

Information about JAP development is available on our developer pages. Here you will find the newest source codes from JAP, mixes, and Infoservice. You can submit a bug report or join the mailing list or discussion forum.

Feedback

Do you have suggestions, comments, criticisms? Please take part in our Questionnaire.

Maintenance times

We cannot guarantee our services (mixes, infoservice, website, download, etc.) and would like to apologize for any inconvenience caused due to system down time.

• Because JAP is a research project, it is continuously being further developed. Nevertheless, we attempt to offer a stable, downloadable version at all times, and to keep the service available except for the following maintenance hours:
  • Monday, 2:00PM - 4:00PM (CEST)
  • Wednesday, 2:00PM - 4:00PM (CEST)
  That is Central European Standard Time. Subtract 6 hours to get Eastern Standard Time (EST).
• At the moment, the web server, mixes, and infoservice are run by universities and other public infrastructures and are free of charge for the user (even though a lot of extra data traffic is produced). Unfortunately, power supplies or data networks sometimes fail or are switched off for maintenance. We will try to keep you informed in the 'News' column on this website about planned maintenance but in case of an unforeseen failure, we are powerless. :)

Project Leadership	Contact Information
University of Regensburg Chair of Information Security                             Prof. Dr. Hannes Federrath D-93040 Regensburg	Technical University Dresden Institute for System Architecture Stefan Köpsell D-01062 Dresden

E-mail: jap[at]inf.tu-dresden.de

For support questions, please use only the discussion forum or our help section.

WWW: http://anon.inf.tu-dresden.de/

JAP is a software development within the Project Anonymity in the Internet sponsored by the German Research Foundation and the Federal Ministry of Economics and Technology. The Project works closely with the Independent Center for Data Privacy Schleswig-Holstein. You can learn more about data privacy at the Virtual Data Privacy Office.

Visitors since 18.12.2000

Current Version: 00.04.017 JAP and Tor: JAP now also works with the Tor anonymization system. (May 11, 2005) Stop SPAM CookieCooker scrambles cookies, manages your web accounts, protects against SPAM by using trash addresses and blocks (flash) advertisement. Dataprotection in Internet Explorer 6.0! Dataprotection-Configurationfile to download - prevents profiling by Cookies.

 

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