diff options
Diffstat (limited to 'lib/Crypto/SelfTest/Util/test_number.py')
| -rw-r--r-- | lib/Crypto/SelfTest/Util/test_number.py | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Crypto/SelfTest/Util/test_number.py b/lib/Crypto/SelfTest/Util/test_number.py index f34233f..0502e9e 100644 --- a/lib/Crypto/SelfTest/Util/test_number.py +++ b/lib/Crypto/SelfTest/Util/test_number.py @@ -252,11 +252,14 @@ class MiscTests(unittest.TestCase): def test_isPrime(self): """Util.number.isPrime""" + self.assertEqual(number.isPrime(-3), False) # Regression test: negative numbers should not be prime + self.assertEqual(number.isPrime(-2), False) # Regression test: negative numbers should not be prime self.assertEqual(number.isPrime(1), False) # Regression test: isPrime(1) caused some versions of PyCrypto to crash. self.assertEqual(number.isPrime(2), True) self.assertEqual(number.isPrime(3), True) self.assertEqual(number.isPrime(4), False) self.assertEqual(number.isPrime(2L**1279-1), True) + self.assertEqual(number.isPrime(-(2L**1279-1)), False) # Regression test: negative numbers should not be prime # test some known gmp pseudo-primes taken from # http://www.trnicely.net/misc/mpzspsp.html for composite in (43 * 127 * 211, 61 * 151 * 211, 15259 * 30517, @@ -273,6 +276,14 @@ class MiscTests(unittest.TestCase): self.assertEqual(number.size(0xa2ba40),8*3) self.assertEqual(number.size(0xa2ba40ee07e3b2bd2f02ce227f36a195024486e49c19cb41bbbdfbba98b22b0e577c2eeaffa20d883a76e65e394c69d4b3c05a1e8fadda27edb2a42bc000fe888b9b32c22d15add0cd76b3e7936e19955b220dd17d4ea904b1ec102b2e4de7751222aa99151024c7cb41cc5ea21d00eeb41f7c800834d2c6e06bce3bce7ea9a5L), 1024) + def test_negative_number_roundtrip_mpzToLongObj_longObjToMPZ(self): + """Test that mpzToLongObj and longObjToMPZ (internal functions) roundtrip negative numbers correctly.""" + n = -100000000000000000000000000000000000L + e = 2L + k = number._fastmath.rsa_construct(n, e) + self.assertEqual(n, k.n) + self.assertEqual(e, k.e) + def get_tests(config={}): from Crypto.SelfTest.st_common import list_test_cases return list_test_cases(MiscTests) |