def test_generate_hmac_secret_not_byte_string(self):
"""Test Otp.generate_hmac().
Check that a counter that is other than a byte string.
"""
cut = HOTP()
# If the counter byte string is less than 8 bytes
#
with self.assertRaises(TypeError):
cut.generate_hmac("1234567890", self.expected[1][0])
def test_generate_hmac_secret_not_byte_string(self):
"""Test Otp.generate_hmac().
Check that a counter that is other than a byte string.
"""
cut = HOTP()
# If the counter byte string is less than 8 bytes
#
with self.assertRaises(TypeError):
cut.generate_hmac("1234567890", self.expected[1][0])
def test_generate_hmac_counter_not_byte_string(self):
"""Test Otp.generate_hmac().
Check that a counter that is other than a byte string.
"""
cut = HOTP()
# If the counter byte string is less than 8 bytes
#
with self.assertRaises(TypeError):
cut.generate_hmac(self.secret, "1234")
def test_generate_hmac_counter_not_byte_string(self):
"""Test Otp.generate_hmac().
Check that a counter that is other than a byte string.
"""
cut = HOTP()
# If the counter byte string is less than 8 bytes
#
with self.assertRaises(TypeError):
cut.generate_hmac(self.secret, "1234")
def test_generate_hmac_bad_counter(self):
"""Test Otp.generate_hmac().
Check that a counter that is other than 8 bytes raises an error.
"""
cut = HOTP()
# If the counter byte string is less than 8 bytes
#
with self.assertRaises(ValueError):
cut.generate_hmac(self.secret, bytes.fromhex("1234"))
# If the counter byte string is more than 8 bytes
#
with self.assertRaises(ValueError):
cut.generate_hmac(self.secret,
bytes.fromhex("12345678901234567890"))
def test_generate_hmac_bad_counter(self):
"""Test Otp.generate_hmac().
Check that a counter that is other than 8 bytes raises an error.
"""
cut = HOTP()
# If the counter byte string is less than 8 bytes
#
with self.assertRaises(ValueError):
cut.generate_hmac(self.secret, bytes.fromhex("1234"))
# If the counter byte string is more than 8 bytes
#
with self.assertRaises(ValueError):
cut.generate_hmac(
self.secret, bytes.fromhex("12345678901234567890"))
def test_generate_hmac(self):
"""Test Otp.generate_hmac().
Check that the RFC4226 test cases work for generate_hmac().
"""
cut = HOTP()
for i in range(0, 10):
hmac = cut.generate_hmac(self.secret, self.expected[i][0])
self.assertEqual(self.expected[i][1], hmac)
def test_generate_hmac(self):
"""Test Otp.generate_hmac().
Check that the RFC4226 test cases work for generate_hmac().
"""
cut = HOTP()
for i in range(0, 10):
hmac = cut.generate_hmac(self.secret, self.expected[i][0])
self.assertEqual(self.expected[i][1], hmac)
def test_hmac_from_counter(self):
"""Test Otp.generate_hmac().
Check that expected HMAC-SHA-1 digest values are produced.
"""
cut = HOTP()
for i in range(0, 10):
counter = cut.num_to_counter(i)
actual_hmac = cut.generate_hmac(self.secret, counter)
self.assertEqual(self.expected[i][1], actual_hmac)
def test_hmac_from_counter(self):
"""Test Otp.generate_hmac().
Check that expected HMAC-SHA-1 digest values are produced.
"""
cut = HOTP()
for i in range(0, 10):
counter = cut.num_to_counter(i)
actual_hmac = cut.generate_hmac(self.secret, counter)
self.assertEqual(self.expected[i][1], actual_hmac)
