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| -rw-r--r-- | Doc/library/os.rst | 5 | ||||
| -rw-r--r-- | Python/random.c | 5 |
2 files changed, 6 insertions, 4 deletions
diff --git a/Doc/library/os.rst b/Doc/library/os.rst index 729fa14..a092413 100644 --- a/Doc/library/os.rst +++ b/Doc/library/os.rst @@ -3377,8 +3377,9 @@ Miscellaneous Functions This function returns random bytes from an OS-specific randomness source. The returned data should be unpredictable enough for cryptographic applications, though its exact quality depends on the OS implementation. On a Unix-like - system this will query /dev/urandom, and on Windows it will use CryptGenRandom. - If a randomness source is not found, :exc:`NotImplementedError` will be raised. + system this will query ``/dev/urandom``, and on Windows it will use + ``CryptGenRandom()``. If a randomness source is not found, + :exc:`NotImplementedError` will be raised. For an easy-to-use interface to the random number generator provided by your platform, please see :class:`random.SystemRandom`. diff --git a/Python/random.c b/Python/random.c index 1d470c7..9c9370c 100644 --- a/Python/random.c +++ b/Python/random.c @@ -218,8 +218,9 @@ lcg_urandom(unsigned int x0, unsigned char *buffer, size_t size) } } -/* Fill buffer with size pseudo-random bytes, not suitable for cryptographic - use, from the operating random number generator (RNG). +/* Fill buffer with size pseudo-random bytes from the operating system random + number generator (RNG). It is suitable for for most cryptographic purposes + except long living private keys for asymmetric encryption. Return 0 on success, raise an exception and return -1 on error. */ int |