sysmosim - Greencard

Harald Welte laforge at
Fri Mar 9 21:27:56 CET 2012

Hi Arjen,

On Fri, Mar 09, 2012 at 04:39:23PM +0100, Arjen Smit wrote:
> For anyone interested:
> A0 20 00 05 08  44 44 44 44 44 44 44 44 unlocks the card to allow update
> e.g the authentication Algorithm.

thanks a lot for informing the list about your progress.

> If any spec available on the sysmosim/Greencard card it would be
> appreciated.

There is no specification, sorry.  All information we know about that
card and its programming had to be reverse engineered from an
uncommented list of APDU sequences for pre-personalization and
personalization that we received from our supplier.

It would be great if you could find some time to improve the wiki page
with your findings.  Unless the community collaborates on creating a
better spec/document, there will not be one :/

- Harald Welte <laforge at> 
"Privacy in residential applications is a desirable marketing option."
                                                  (ETSI EN 300 175-7 Ch. A6)

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