def test_generate_2arg(self):
"""RSA (default implementation) generated key (2 arguments)"""
rsaObj = self.rsa.generate(1024, Random.new().read)
self._check_private_key(rsaObj)
self._exercise_primitive(rsaObj)
pub = rsaObj.publickey()
self._check_public_key(pub)
self._exercise_public_primitive(rsaObj)
def runTest(self):
"""CryptoPlus.Random.new()"""
# Import the OSRNG module and try to use it
from CryptoPlus import Random
randobj = Random.new()
x = randobj.read(16)
y = randobj.read(16)
self.assertNotEqual(x, y)
def test_generate_2arg(self):
"""RSA (default implementation) generated key (2 arguments)"""
rsaObj = self.rsa.generate(1024, Random.new().read)
self._check_private_key(rsaObj)
self._exercise_primitive(rsaObj)
pub = rsaObj.publickey()
self._check_public_key(pub)
self._exercise_public_primitive(rsaObj)
def _check_decryption(self, rsaObj):
plaintext = a2b_hex(self.plaintext)
ciphertext = a2b_hex(self.ciphertext)
# Test plain decryption
new_plaintext = rsaObj.decrypt((ciphertext, ))
self.assertEqual(b2a_hex(plaintext), b2a_hex(new_plaintext))
# Test blinded decryption
blinding_factor = Random.new().read(len(ciphertext) - 1)
blinded_ctext = rsaObj.blind(ciphertext, blinding_factor)
blinded_ptext = rsaObj.decrypt((blinded_ctext, ))
unblinded_plaintext = rsaObj.unblind(blinded_ptext, blinding_factor)
self.assertEqual(b2a_hex(plaintext), b2a_hex(unblinded_plaintext))
def _check_decryption(self, rsaObj):
plaintext = a2b_hex(self.plaintext)
ciphertext = a2b_hex(self.ciphertext)
# Test plain decryption
new_plaintext = rsaObj.decrypt((ciphertext,))
self.assertEqual(b2a_hex(plaintext), b2a_hex(new_plaintext))
# Test blinded decryption
blinding_factor = Random.new().read(len(ciphertext)-1)
blinded_ctext = rsaObj.blind(ciphertext, blinding_factor)
blinded_ptext = rsaObj.decrypt((blinded_ctext,))
unblinded_plaintext = rsaObj.unblind(blinded_ptext, blinding_factor)
self.assertEqual(b2a_hex(plaintext), b2a_hex(unblinded_plaintext))
def _exercise_primitive(self, rsaObj):
# Since we're using a randomly-generated key, we can't check the test
# vector, but we can make sure encryption and decryption are inverse
# operations.
ciphertext = a2b_hex(self.ciphertext)
# Test decryption
plaintext = rsaObj.decrypt((ciphertext, ))
# Test encryption (2 arguments)
(new_ciphertext2, ) = rsaObj.encrypt(plaintext, "")
self.assertEqual(b2a_hex(ciphertext), b2a_hex(new_ciphertext2))
# Test encryption (1 argument)
if not self.legacy_interface_only:
(new_ciphertext1, ) = rsaObj.encrypt(plaintext)
self.assertEqual(b2a_hex(ciphertext), b2a_hex(new_ciphertext1))
# Test blinded decryption
blinding_factor = Random.new().read(len(ciphertext) - 1)
blinded_ctext = rsaObj.blind(ciphertext, blinding_factor)
blinded_ptext = rsaObj.decrypt((blinded_ctext, ))
unblinded_plaintext = rsaObj.unblind(blinded_ptext, blinding_factor)
self.assertEqual(b2a_hex(plaintext), b2a_hex(unblinded_plaintext))
def _exercise_primitive(self, rsaObj):
# Since we're using a randomly-generated key, we can't check the test
# vector, but we can make sure encryption and decryption are inverse
# operations.
ciphertext = a2b_hex(self.ciphertext)
# Test decryption
plaintext = rsaObj.decrypt((ciphertext,))
# Test encryption (2 arguments)
(new_ciphertext2,) = rsaObj.encrypt(plaintext, "")
self.assertEqual(b2a_hex(ciphertext), b2a_hex(new_ciphertext2))
# Test encryption (1 argument)
if not self.legacy_interface_only:
(new_ciphertext1,) = rsaObj.encrypt(plaintext)
self.assertEqual(b2a_hex(ciphertext), b2a_hex(new_ciphertext1))
# Test blinded decryption
blinding_factor = Random.new().read(len(ciphertext)-1)
blinded_ctext = rsaObj.blind(ciphertext, blinding_factor)
blinded_ptext = rsaObj.decrypt((blinded_ctext,))
unblinded_plaintext = rsaObj.unblind(blinded_ptext, blinding_factor)
self.assertEqual(b2a_hex(plaintext), b2a_hex(unblinded_plaintext))
