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[liberationtech] Opensource SDK for SIM hacking

Jon Gosier jon at
Mon Jan 21 04:51:11 PST 2013

Thanks Jacob!  We weren't aware of any of these and if they offer the
solutions we need we'll just build on them (of course contributing as
well). So much appreciated!

As for where we sit in the ecosystem, where we don't have to recreate the
wheel in low-level programming, we won't. We ultimately care mostly about
the GUI and ease-of-use, to enable projects related to humanitarian and
journalist needs in developing countries.


On Mon, Jan 21, 2013 at 6:46 AM, Jacob Appelbaum <jacob at>wrote:

> Jon Gosier:
> > Hey all,
> >
> > Thought I would share our Open SIM Kit ( project
> with
> > the list.  The project aims to be an open source SDK of sorts for hacking
> > SIM cards. In practice, this allows users to modify the contents of SIM
> > cards. The goals of the project:
> Hi,
> How does this compare with the suite of tools that Harald
> Welte/Osmocom/Syscom and others have been working on for the last ~5+
> years?
> These are the projects that come to mind:
>  Osmocom SIMtrace is a software and hardware system for passively
>  tracing SIM-ME communication between the SIM card and
>  the mobile phone.:
>  Osmocom Card Operating System (COS):
>  A command line tool for (U)SIM authentication
>  A python tool to program magic SIMs:
>  Henryk Ploetz' smardcard shell:
> Also, I believe that has been using these tools (and a vendor
> in China) to produce full SIM cards with fully programmable k{i}.
> Can you explain where your new project fits in the current ecosystem?
> All the best,
> Jacob
> --
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Jon Gosier
Founder, Abayima
Mobile: (520) 301-7906 <> | @abayima <> |
Bio <>

*TED Senior Fellow Alum*
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