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laforge, 02/19/2016 10:52 PM
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[[PageOutline]]
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= The Osmocom TETRA project =
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This project aims at practical research and experimentation with the [wiki:TETRA]
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trunked radio system.
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It is part of the bigger family of [http://osmocom.org/ Osmocom] projects,
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all aiming to create Free Software (Open Source Software) for mobile communications.
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== Software Defined Radio TETRA Air interface sniffer ==
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The [wiki:osmo-tetra] project aims at implementing the sending and
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receiving part of the TETRA MAC/PHY layer.
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Currently, it can
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 * receive, demodulate and decode TETRA downlink signals of real-world TETRA networks
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 * display information about SYNC, SYSINFO, MM and CMCE PDUs
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 * forward those TETRA downlink signals to the [http://wireshark.org/ wireshark] protocol analyzer
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 * forward IP packets contained in TETRA SNDCP to a local {{{tun/tap}}} device
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== Research on Motorola Dimetra EBTS ==
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We are currently investigating the hardware and software architecture of the [wiki:Dimetra_EBTS Motorola Dimetra EBTS],
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including its components like Base Radio, Site Controller, etc.
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The goal here is to run this equipment without a Motorla SwMI and thus have an inexpensive platform for running
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your own TETRA network for research purpose.
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== Applied Research on security of real-world TETRA networks ==
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Using the tools we develop, we are analyzing the security of real-world TETRA networks.
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Our experience so far is quite shocking: All the non-government TETRA networks that we
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have encountered use no TETRA encryption at all, i.e. they are subject to very easy
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eavesdropping attacks.
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More information will follow soon.
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= Further Reading =
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 * [wiki:FAQ] - Our Frequently Asked Questions
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 * [wiki:Funcube_Dongle] - A small receiver that can be used with [wiki:osmo-tetra]
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 * [wiki:Dimetra_EBTS] - Information on the Motorola Dimetra EBTS
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 * [wiki:TETRA_in_Germany] - Information we collect about TETRA networks in Germany
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