def hash(self, sa, da, priority, msduData ):
""" The TKIP MIC appends sa, da and priority to msduData
and uses the result in the Michael keyed hash
to create an 8 octet MIC value
"""
assert( 0 <= priority <= 15 ), 'Priority must be 4 bit value'
assert( (len(sa)==6) and (len(da)==6) ), 'Addresses must be 6 octets'
if self.version == 'D3':
micData = da + sa + chr(priority) + 3*chr(0) + msduData
elif self.version == 'D2':
micData = da + sa + msduData
else:
raise 'bad version'
return Michael.hash(self, micData)
def hash(self, sa, da, priority, msduData ):
""" The TKIP MIC appends sa, da and priority to msduData
and uses the result in the Michael keyed hash
to create an 8 octet MIC value
"""
assert( 0 <= priority <= 15 ), 'Priority must be 4 bit value'
assert( (len(sa)==6) and (len(da)==6) ), 'Addresses must be 6 octets'
if self.version == 'D3':
micData = da + sa + chr(priority) + 3*chr(0) + msduData
elif self.version == 'D2':
micData = da + sa + msduData
else:
raise 'bad version'
return Michael.hash(self, micData)
def runSingleTest(key, data, micResult):
print "============================="
key = a2b_hex(key)
knownMICResult = a2b_hex(micResult)
print "key: ", b2a_hex(key)
print "data: ", b2a_hex(data)
print "knownMIC: ", b2a_hex(knownMICResult)
micAlg = Michael(key)
calculatedMIC = micAlg.hash(data)
print "CalcMIC: ", b2a_hex(calculatedMIC)
self.assertEqual(calculatedMIC, knownMICResult)
# alternate calling sequence
micAlg = Michael()
micAlg.setKey(key)
calculatedMIC = micAlg.hash(data)
self.assertEqual(calculatedMIC, knownMICResult)
# yet another way to use algorithm
calculatedMIC = micAlg(data)
self.assertEqual(calculatedMIC, knownMICResult)
def runSingleTest(key,data,micResult):
print "============================="
key = a2b_hex(key)
knownMICResult = a2b_hex(micResult)
print "key: ",b2a_hex(key)
print "data: ",b2a_hex(data)
print "knownMIC: ", b2a_hex(knownMICResult)
micAlg = Michael(key)
calculatedMIC = micAlg.hash(data)
print "CalcMIC: ", b2a_hex(calculatedMIC)
self.assertEqual( calculatedMIC, knownMICResult )
# alternate calling sequence
micAlg = Michael()
micAlg.setKey(key)
calculatedMIC = micAlg.hash(data)
self.assertEqual( calculatedMIC, knownMICResult )
# yet another way to use algorithm
calculatedMIC = micAlg(data)
self.assertEqual( calculatedMIC, knownMICResult )
def __init__(self, key=None, version='D3'):
""" """
self.version = version
Michael.__init__(self, key)
def __init__(self, key=None, version='D3'):
""" """
self.version = version
Michael.__init__(self,key)