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Harald Welte laforge at gnumonks.orgHi Marco, On Wed, Mar 30, 2016 at 11:26:06PM +0200, Marco Heumann wrote: > a student college and me are using the osmo-sim-auth tool for a student > project. We have valid data for our SIM card since it's a special > ordered test SIM card. are you aware that test sim cards sometimes use different algorithms (XOR instead of MILENAGE) and even might have the sequence number (SQN) handling turned off? > In 2G mode we get the correct RES value, but in 3G mode we always get > only an AUTS value. We calculated the SQN value from the AUTS to > verify that we have the correct SQN value, but still we only get AUTS > as return. What is your expectation? What do you expect in addition to the AUTS? Have you actually bothered to look at the code of osmo-sim-auth.py? In UMTS AKA case, there is only a single print line: »·······ret = u.authenticate(rand_bin, autn_bin, ctx='3G') »·······if len(ret) == 1: »·······»·······print "AUTS:\t%s" % b2a_hex(byteToString(ret[0])) »·······else: »·······»·······print "RES:\t%s" % b2a_hex(byteToString(ret[0])) »·······»·······print "CK:\t%s" % b2a_hex(byteToString(ret[1])) »·······»·······print "IK:\t%s" % b2a_hex(byteToString(ret[2])) »·······»·······if len(ret) == 4: »·······»·······»·······print "Kc:\t%s" % b2a_hex(byteToString(ret[3])) maybe you simply want to add the print-out of what you wnat to see printed? -- - Harald Welte <laforge at gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)