def updateShiftRegister(self):
"""
updateShiftRegister, updates the shift register for XOR-ing the next
byte.
INPUT:
nothing
OUTPUT:
nothing
"""
# ======== IMPLEMENTATION GOES HERE =========
if self.r_i is None:
self.r_i = auxillary.parityWordChecksum(self.dh_key)
else:
self.r_i = (self.a * self.r_i + self.b) % self.p
# ======== END IMPLEMENTATION ===============
return None
def updateShiftRegister(self):
"""
updateShiftRegister, updates the shift register for XOR-ing the next
byte.
INPUT:
nothing
OUTPUT:
nothing
"""
# ======== IMPLEMENTATION GOES HERE =========
if self.r_i is None:
self.r_i = auxillary.parityWordChecksum(self.dh_key)
else:
self.r_i = (self.a * self.r_i + self.b) % self.p
# ======== END IMPLEMENTATION ===============
return None
def test_parityWordChecksum(self):
err = "FAILED: parityWordChecksum. Non matching checksum"
self.assertEqual(candidate.parityWordChecksum(self.dh_key),
reference.parityWordChecksum(self.dh_key), err)
def test_parityWordChecksum(self): err = "FAILED: parityWordChecksum. Non matching checksum" self.assertEqual(candidate.parityWordChecksum(self.dh_key), reference.parityWordChecksum(self.dh_key), err)
