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usim/opc: Add support to write completely random OPC 

Allow to set the OPC, write it out to the state, generate it randomly.
This commit is contained in:
Harald Welte 2012-03-22 14:31:36 +01:00 committed by Holger Hans Peter Freyther
parent 4d91bf449f
commit 93b38cd0f5
2 changed files with 18 additions and 3 deletions
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18
pySim-prog.py
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@ -99,6 +99,10 @@ def parse_options():
parser.add_option("-k", "--ki", dest="ki",
help="Ki (default is to randomize)",
)
parser.add_option("-o", "--opc", dest="opc",
help="OPC (default is to randomize)",
)
parser.add_option("-z", "--secret", dest="secret", metavar="STR",
help="Secret used for ICCID/IMSI autogen",
@ -305,6 +309,16 @@ def gen_parameters(opts):
else:
ki = ''.join(['%02x' % random.randrange(0,256) for i in range(16)])
# Ki (random)
if opts.opc is not None:
opc = opts.opc
if not re.match('^[0-9a-fA-F]{32}$', opc):
raise ValueError('OPC needs to be 128 bits, in hex format')
else:
opc = ''.join(['%02x' % random.randrange(0,256) for i in range(16)])
# Return that
return {
'name' : opts.name,
@ -314,6 +328,7 @@ def gen_parameters(opts):
'imsi' : imsi,
'smsp' : smsp,
'ki' : ki,
'opc' : opc,
}
@ -326,6 +341,7 @@ def print_parameters(params):
> MCC/MNC : %(mcc)d/%(mnc)d
> IMSI : %(imsi)s
> Ki : %(ki)s
> OPC : %(opc)s
""" % params
@ -333,7 +349,7 @@ def write_parameters(opts, params):
# CSV
if opts.write_csv:
import csv
row = ['name', 'iccid', 'mcc', 'mnc', 'imsi', 'smsp', 'ki']
row = ['name', 'iccid', 'mcc', 'mnc', 'imsi', 'smsp', 'ki', 'opc']
f = open(opts.write_csv, 'a')
cw = csv.writer(f)
cw.writerow([params[x] for x in row])

3
pySim/cards.py
View File

@ -337,9 +337,8 @@ class SysmoUSIMgr1(Card):
data, sw = self._scc._tp.send_apdu_checksw("0020000A083332323133323332")
# TODO: move into SimCardCommands
# TODO: Add OPC support support to pySIM
par = ( p['ki'] + # 16b K
32*"F" + # 32b OPC
p['opc'] + # 32b OPC
self._e_iccid(p['iccid']) + # 10b ICCID
self._e_imsi(p['imsi']) # 9b IMSI_len + id_type(9) + IMSI
)