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Christoffer Jerkeby kugghjul at gmail.comOn Thu, Nov 22, 2012 at 7:13 PM, Holger Hans Peter Freyther <holger at freyther.de> wrote: > On Thu, Nov 22, 2012 at 03:12:32PM +0100, Yann R. Moupinda wrote: >> >> Hi guys, > > Hi, > > >> Why does the authentication succeed buy using sysmocom sim card with weak RAND >> (10101010101010101010101010101010) and fail by using strong RAND values >> (e177842fe16c47de84784be1b4141c27) ? > > no idea, can you provide an example program (e.g. pySIM based) that illustrates > the issue? > > holger > While agreeing that you need to give an example of what goes wrong, I happen to notice all your "bad" RAND values contains lowercase HEX characters while your "good" ones only contains uppercase HEX characters. I dont know if that matters in your application. But only accepting weak keyes is not logical. Regards Kugg