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"""
PKCS#11 DES Secret Keys
"""
import pkcs11
from pkcs11 import KeyType, Mechanism
from . import TestCase, requires
class DESTests(TestCase):
@requires(Mechanism.DES2_KEY_GEN)
def test_generate_des2_key(self):
key = self.session.generate_key(KeyType.DES2)
self.assertIsInstance(key, pkcs11.SecretKey)
@requires(Mechanism.DES3_KEY_GEN)
def test_generate_des3_key(self):
key = self.session.generate_key(KeyType.DES3)
self.assertIsInstance(key, pkcs11.SecretKey)
@requires(Mechanism.DES2_KEY_GEN, Mechanism.DES3_CBC_PAD)
def test_encrypt_des2(self):
key = self.session.generate_key(KeyType.DES2)
iv = self.session.generate_random(64)
crypttext = key.encrypt("PLAIN TEXT_", mechanism_param=iv)
plaintext = key.decrypt(crypttext, mechanism_param=iv)
self.assertEqual(plaintext, b"PLAIN TEXT_")
@requires(Mechanism.DES3_KEY_GEN, Mechanism.DES3_CBC_PAD)
def test_encrypt_des3(self):
key = self.session.generate_key(KeyType.DES3)
iv = self.session.generate_random(64)
crypttext = key.encrypt("PLAIN TEXT_", mechanism_param=iv)
plaintext = key.decrypt(crypttext, mechanism_param=iv)
self.assertEqual(plaintext, b"PLAIN TEXT_")
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