def test_random_of_length(self):
"""
Verify that the Python implementation guarantees byte length by
setting most significant bit to 1
"""
for x in range(10):
val = _pysrp.get_random_of_length(32)
self.assertTrue(val >> 255 == 1)
def test_random_of_length(self):
"""
Verify that the Python implementation guarantees byte length by
setting most significant bit to 1
"""
for x in range(10):
val = _pysrp.get_random_of_length(32)
self.assertTrue(val >> 255 == 1)
def test_ephemeral_length(self):
"""
Verify that all implementations require 32 bytes for ephemeral values
"""
random31 = _pysrp.long_to_bytes(_pysrp.get_random_of_length(31))
random33 = _pysrp.long_to_bytes(_pysrp.get_random_of_length(33))
def verf_len(mod, val):
with self.assertRaises(ValueError) as ctx:
mod.User('uname', 'pwd', bytes_a=val)
self.assertIn('bytes_a', str(ctx.exception) )
with self.assertRaises(ValueError) as ctx:
mod.Verifier('uname', random31, random31, random31, bytes_b=val)
self.assertIn('bytes_b', str(ctx.exception) )
for mod in [_ctsrp, _pysrp]:
for val in [random31, random33]:
verf_len(mod, val)
def test_ephemeral_length(self):
"""
Verify that all implementations require 32 bytes for ephemeral values
"""
random31 = _pysrp.long_to_bytes(_pysrp.get_random_of_length(31))
random33 = _pysrp.long_to_bytes(_pysrp.get_random_of_length(33))
def verf_len(mod, val):
with self.assertRaises(ValueError) as ctx:
mod.User('uname', 'pwd', bytes_a=val)
self.assertIn('bytes_a', str(ctx.exception))
with self.assertRaises(ValueError) as ctx:
mod.Verifier('uname',
random31,
random31,
random31,
bytes_b=val)
self.assertIn('bytes_b', str(ctx.exception))
for mod in [_ctsrp, _pysrp]:
for val in [random31, random33]:
verf_len(mod, val)
