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"""
Some tests for the rsa/key.py file.
"""
import unittest
import rsa.key
import rsa.core
class BlindingTest(unittest.TestCase):
def test_blinding(self):
"""Test blinding and unblinding.
This is basically the doctest of the PrivateKey.blind method, but then
implemented as unittest to allow running on different Python versions.
"""
pk = rsa.key.PrivateKey(3727264081, 65537, 3349121513, 65063, 57287)
message = 12345
encrypted = rsa.core.encrypt_int(message, pk.e, pk.n)
blinded = pk.blind(encrypted, 4134431) # blind before decrypting
decrypted = rsa.core.decrypt_int(blinded, pk.d, pk.n)
unblinded = pk.unblind(decrypted, 4134431)
self.assertEqual(unblinded, message)
class KeyGenTest(unittest.TestCase):
def test_custom_exponent(self):
priv, pub = rsa.key.newkeys(16, exponent=3)
self.assertEqual(3, priv.e)
self.assertEqual(3, pub.e)
def test_default_exponent(self):
priv, pub = rsa.key.newkeys(16)
self.assertEqual(0x10001, priv.e)
self.assertEqual(0x10001, pub.e)
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