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src/OpenSSL/rand.py
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Alex Gaynor
Fix approximately 100 mypy errors in test_crypto.py (#1394)
07 янв 2025, 19:45
Не верифицирован
07 янв 2025, 19:45
ee017b2
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""" PRNG management routines, thin wrappers. """ from __future__ import annotations import warnings from OpenSSL._util import lib as _lib warnings.warn( "OpenSSL.rand is deprecated - you should use os.urandom instead", DeprecationWarning, stacklevel=3, ) def add(buffer: bytes, entropy: int) -> None: """ Mix bytes from *string* into the PRNG state. The *entropy* argument is (the lower bound of) an estimate of how much randomness is contained in *string*, measured in bytes. For more information, see e.g. :rfc:`1750`. This function is only relevant if you are forking Python processes and need to reseed the CSPRNG after fork. :param buffer: Buffer with random data. :param entropy: The entropy (in bytes) measurement of the buffer. :return: :obj:`None` """ if not isinstance(buffer, bytes): raise TypeError("buffer must be a byte string") if not isinstance(entropy, int): raise TypeError("entropy must be an integer") _lib.RAND_add(buffer, len(buffer), entropy) def status() -> int: """ Check whether the PRNG has been seeded with enough data. :return: 1 if the PRNG is seeded enough, 0 otherwise. """ return _lib.RAND_status()