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: / snap / core22 / current / lib / python3 / dist-packages / cryptography / hazmat / primitives /

Filename : constant_time.py

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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.


import hmac


def bytes_eq(a: bytes, b: bytes) -> bool:
    if not isinstance(a, bytes) or not isinstance(b, bytes):
        raise TypeError("a and b must be bytes.")

    return hmac.compare_digest(a, b)