usim/opc: Add support to write completely random OPC
Allow to set the OPC, write it out to the state, generate it randomly.
diff --git a/pySim-prog.py b/pySim-prog.py
index 481d070..2ed3260 100755
--- a/pySim-prog.py
+++ b/pySim-prog.py
@@ -99,6 +99,10 @@
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 @@
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 @@
'imsi' : imsi,
'smsp' : smsp,
'ki' : ki,
+ 'opc' : opc,
}
@@ -326,6 +341,7 @@
> MCC/MNC : %(mcc)d/%(mnc)d
> IMSI : %(imsi)s
> Ki : %(ki)s
+ > OPC : %(opc)s
""" % params
@@ -333,7 +349,7 @@
# 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])