Remove unused `compare_digest` function. (#10706)

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Patrick Cloke 2021-08-27 07:08:02 -04:00 committed by GitHub
parent e62cdbef1a
commit 029b7ad7b9
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2 changed files with 1 additions and 13 deletions

1
changelog.d/10706.misc Normal file
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Remove unused `compare_digest` function.

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@ -12,7 +12,6 @@
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import hmac
import logging
import random
from typing import List, Union
@ -60,18 +59,6 @@ from synapse.util.threepids import (
from ._base import client_patterns, interactive_auth_handler
# We ought to be using hmac.compare_digest() but on older pythons it doesn't
# exist. It's a _really minor_ security flaw to use plain string comparison
# because the timing attack is so obscured by all the other code here it's
# unlikely to make much difference
if hasattr(hmac, "compare_digest"):
compare_digest = hmac.compare_digest
else:
def compare_digest(a, b):
return a == b
logger = logging.getLogger(__name__)