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Dieter Spaar spaar at mirider.augusta.deHello Sebastien, On Tue, 16 Mar 2010 00:09:46 +0100, "=?UTF-8?Q?S=C3=A9bastien_Lorquet?=" <squalyl at gmail.com> wrote: > > Sylvain, if I evolve your algorithm, then I think we don't need to store > anything in EEPROM. Just keep that in RAM and force a renegociation at MS > boot. What do you think of that? Just a question: Why do you want to avoid writing Kc to the EEPROM ? The cards I know have a quite huge number of EPPROM write cycles, e.g. for a certain MULTOS card the number is specified to be 500.000. I don't know the number for the card you use, but I expect it to be at least 100.000. For our purpose this should be really good enough, I would expect more writes to EF LOCI and EF BCCH than to EF KC. A question to the list: does anyone know where to get a tool to cut out a SIM from a standard smart card ? I don't prefer doing this with a knife or similar, this might only be OK for one or two pieces and the result also does not look too good. Best regards, Dieter -- Dieter Spaar, Germany spaar at mirider.augusta.de