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Open Source Network Elements for Security Analysis of Mobile Networks
For almost 20 years, digital cellular networks have been without Free /
Open Source software implementations of any of their protocols or
netwokr elements.
In 2008, the two independent and architecturally completely different
projects OpenBTS and OpenBSC have changed that for 2G networks. In
2010, they were followed by OsmocomBB, an Open Source implementation of
the GSM Mobile Station protocol stack.
It is not a coincidence that the above proejcts were a (if not the) key
enabler behind a lot of the cellular technology security research that
followed in the years after.
Despite being of such prominent importance for researching (and
ultimately improving) cellular security, the mobile industry has not
learned from 2G and not taken up the cause to funded or support the
development of Open Source reference implementations of later (3G / 4G)
protocols and network elements.
Despite the lack of support, the Osmocom project has started an
implementatation of the 3G core netwokr elements and is actively working
towards IuCS, IuPS and Iuh support in OsmoNITB and OsmoSGSN. The first
working alpha-versions of this are expected to be available at the end
of Q1/2016. Let's hope they can have an equal impact in spawning
cellular security research than the releases of OpenBSC and OsmocomBB in
the past.
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