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Handhelds Software Hardware

Cellphone Forensic Software Open Sourced 23

Posted by michael from the copying-jason-bourne dept.
Niek writes "The Netherlands Forensic Institute (part of the Dutch Ministry of Justice) has open sourced one of their high-profile software frameworks, TULP2G. With this BSD licensed framework, one can extract and decode all data from GSM SIM cards, e.g. called phone numbers and received SMS messages. This was previously only possible with commercial software. Dutch press release, Powerpoint presentation. Earlier this year, the Dutch government GPLed their online election software."
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Cellphone Forensic Software Open Sourced More

Cellphone Forensic Software Open Sourced

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  • I think I speak for all of us when I ask... (Score:3, Funny)

    by Anonymous Coward on Thursday December 02, 2004 @11:34AM (#10975214)
    Just one question before I pack my bags. Is broadband cheap in the netherlands?
    • Word. I don't usually like to make gross generalizations (was that one right there?), but I think Holland is making an exceptional case for itself as being a Better Place (TM).
    • in all seriousness this does seem like a wonderfule thing, but does anyone know why their government is so supportive of open-source? My guess would be that their government has less pressure/influence from coperations, and thus does not share a corperation's closed-source paranoia like ours (America) does.
    • Just one question before I pack my bags. Is broadband cheap in the netherlands?

      Yes, and so is the weed :)
    • Read up on the history of Pim Fortuyn.

      The netherlands has gotten used to something called coalition goverment. Unlike the US or england we got a lot of parties ranging from (when I was young) to extreme left to extreme right. To be sure both extremes were tiny but they were there with a seat in the goverment after some elections (we are talking really really small here).

      So to get a majority the biggest partie would form a coalition with smaller parties and agree on a common policy to govern the country wi

      • Very nicely written and I think you put some of my thoughts in writing. I used to live in Nederland for three years (I am from Finland) and could see things from both point of views, immigrant and native (as I look like a Dutchman). The problem I had was that I never managed to learn Dutch properly as I worked at least 12 hours a day and most of my colleagues and friends were also non-Dutch.

  • hardware ? (Score:2, Interesting)

    by johnjones ( 14274 )
    ok so you still need a sim reader right ?

    where do I get one of those I am in the uk

    plus I am looking into recording GSM signals has anyone got any advice ?

    regards

    John Jones

    • Re:hardware ? (Score:3, Informative)

      by raider_red ( 156642 )
      Would a regular smart card reader work?

      If not, I found this [tigerdirect.com] from a quick search on Google

      • Re:hardware ? (Score:3, Informative)

        by chochos ( 700687 )
        I talked to some tech people from a smart card company a couple of months ago and from what I understood, a regular smart card reader can read SIM cards, as long as you have the software for it... which now you have...
    • G'day John... regarding the SIM reader, I saw this recently:
      http://www.mrgadget.com.au/catalog/product_info. php/products_id/558

      Ships within australia only, but I'm sure you can find it somewhere else.

    • try an e-Mobile SIM card reader, http://www.kinforce.com/en/ArticleShow.asp?Article ID=34 [kinforce.com] , about $20 off ebay.

      Since you can use this open source application it won't need to bother with the crappy software the sim reader comes with.

      You can read my short comments regarding it in my blog [blogspot.com]

  • HUH ? (Score:5, Informative)

    by makapuf ( 412290 ) on Thursday December 02, 2004 @06:15PM (#10980120)
    you know, if you really are up to that, you must think of a SIM card as a small (16-64k) filesystem.

    Files are organized into a tree structure in directories and protected (read, write..) by PIN codes. Files can be seen as fixed size arrays of fixed siez strings. The GSM standard specification (GSM 11.11) says that, and what information can be found where. (example, on the directory 'GSM' - which is really a filenumber on the sim instead of a filename), you'll have the last number dialled (LDN file).

    the procotol used to open/read files is fairly open.

    That's it. So what's so special to write such a program ? You need e.g. serial access to the card interface, the SIM specification [3gpp.org], and a small script language, then a few hours later, voila.

    (or you could put the SIM card in a phone and check the information)

    What you don't have is access to the pin protected information, and good luck to attack those since all european telco industry relies on this.

    • Re:HUH ? (Score:3, Informative)

      by ilithiiri ( 836229 )
      What you don't have is access to the pin protected information, and good luck to attack those since all european telco industry relies on this.
      Since you mean a PIN number, which normally is 4 digits 0-9, I think there would be NO problem in doing a brute-force attack to check what information can be found there.
      I.e. last number called protected by PIN? no problem, as long as you get strange characters from the decrypt you go on.. then with one PIN you get some ok characters and you investigate.
      Or not?
      • instruction READ does not provide the protected information unless you provided the PIN code. So, no copy for you of course.

        Then, 3 bad PIN renders the card unusable. No brute force.

        Even calculation times and power consumption (generally) have been randomized to prevent attacks. Info is hidden from Eletronic microscope .

        Not so trivial anymore.

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