  
  from django.utils.crypto import constant_time_compare, pbkdf2, salted_hmac
  
  
  class TestUtilsCryptoMisc(unittest.TestCase):
  
      def test_constant_time_compare(self):
          # It's hard to test for constant time, just test the result.
          self.assertTrue(constant_time_compare(b'spam', b'spam'))
          self.assertFalse(constant_time_compare(b'spam', b'eggs'))
 
</s> remove from django.utils.crypto import constant_time_compare, pbkdf2, salted_hmac
 </s> add from django.test import SimpleTestCase
from django.utils.crypto import (
    InvalidAlgorithm, constant_time_compare, pbkdf2, salted_hmac,
) </s> remove def salted_hmac(key_salt, value, secret=None):
 </s> add class InvalidAlgorithm(ValueError):
    """Algorithm is not supported by hashlib."""
    pass


def salted_hmac(key_salt, value, secret=None, *, algorithm='sha1'): </s> remove     return hmac.new(key, msg=force_bytes(value), digestmod=hashlib.sha1)
 </s> add     return hmac.new(key, msg=force_bytes(value), digestmod=hasher) </s> remove     # passing the key_salt and our base key through a pseudo-random function and
    # SHA1 works nicely.
    key = hashlib.sha1(key_salt + secret).digest()
 </s> add     # passing the key_salt and our base key through a pseudo-random function.
    key = hasher(key_salt + secret).digest() </s> remove     Return the HMAC-SHA1 of 'value', using a key generated from key_salt and a
    secret (which defaults to settings.SECRET_KEY).
 </s> add     Return the HMAC of 'value', using a key generated from key_salt and a
    secret (which defaults to settings.SECRET_KEY). Default algorithm is SHA1,
    but any algorithm name supported by hashlib.new() can be passed.
class TestUtilsCryptoMisc(SimpleTestCase):
  
  from django.utils.crypto import constant_time_compare, pbkdf2, salted_hmac
  
  
class TestUtilsCryptoMisc(SimpleTestCase):
  
      def test_constant_time_compare(self):
          # It's hard to test for constant time, just test the result.
          self.assertTrue(constant_time_compare(b'spam', b'spam'))
          self.assertFalse(constant_time_compare(b'spam', b'eggs'))
keep keep keep keep replace keep keep keep keep keep
 Refs #27468 -- Added algorithm parameter to django.utils.crypto.salted_hmac(). 
tests/utils_tests/test_crypto.py