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Re: [tor-talk] Fwd: ANONdroid

On 01/25/2012 10:29 PM, Maxim Kammerer wrote:
> Can any of you clarify this please? JonDonym's Wikipedia page [1]
> claims that no backdoor was ever installed in running MIX routers.

What is a "backdoor":

A "backdoor" offers unrestricted access to the law enforcement agencies
and intelleigence services without support of the service operators.

Such a "backdoor" was built into the Greek Vodafone network for law
enforcement wiretapping capabilities and was requested by FBI director
Robert Mueller from US companies. If Mueller’s wish were granted, the
FBI would gain undetected real-time access to suspects’ Skype calls,
Facebook chats, and other online communications­ and in "clear text".

Such a "backdoor" is not part of JonDonym.

JonDonym law enforcement:

It is possible, to deanonymize a single user by some features (user IP
address, website monitoring or user account). The idedentify feature for
the malicious user has to be provided by the law enforcement agency and
all operators have to get an official order in their country.

The deanonymisation can only be done by collecting all log together
(usually done by the law enforcement agency), it can not be done by a
single mix operator.

All other user of JonDonym will use the mix cascades without logging.

An scientific paper about the "Revocable Anonymity" impleneted by
JonDonym you may find the publications list at:


Best regards
Karsten N.
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