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tsaitgaist ml at mail.tsaitgaist.infoHi, Here some corrections : On 14.07.2011 15:37, Dirk Kirsten wrote: > Hello, > > We would like to do some active manipulation between our ME and the SIM > card. As I understood correctly, the hardware SIMtrace project is just > about passive monitoring the traffic in between, am I right? So this > seems to be inappropriate for our aims. The hardware can co MitM. Only the software has to implement it. > > So we thought about a solution more like the RebelSIM card, which is > documented as well in the osmocomBB wiki. Unfortunately, the information > given there are also very vague. So maybe it is just outdated: Does > anybody worked with the RebelSIM card in a way that they try to > manipulate the responses from the SIM (or do something else, except from > unlocking their phone)? Is it possible to flash it via SIM card > interface?! The rebelSIM can only sniff, even that is very unstable. This is why we built SIMtrace. > > What we actually want to do is to replace same values, e.g. we want to > provide another Kc than the SIM card in fact has (this is solely a > research project). So maybe there is some other way to do is, except the > approach based on RebelSIM? If so I would be grateful for your valuable > feedback. You can also try the softSIM project. Compile osmocomBB with the SAP support from nion, and use the SAP server. Then you can change everything in software. > > Cheers, > Dirk > > Kevin