Exemple #1
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def write_file(filename):
    """
    Write a number of random bytes (currently 1024) to the file *path*.  This
    file can then be used with :func:`load_file` to seed the PRNG again.

    :param filename: The file to write data to (``bytes`` or ``unicode``).

    :return: The number of bytes written.
    """
    filename = _path_string(filename)
    return _lib.RAND_write_file(filename)
Exemple #2
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def load_file(filename, maxbytes=_unspecified):
    """
    Read *maxbytes* of data from *filename* and seed the PRNG with it.

    Read the whole file if *maxbytes* is not specified or negative.

    :param filename: The file to read data from (``bytes`` or ``unicode``).
    :param maxbytes: (optional) The number of bytes to read.    Default is to
        read the entire file.

    :return: The number of bytes read
    """
    filename = _path_string(filename)

    if maxbytes is _unspecified:
        maxbytes = -1
    elif not isinstance(maxbytes, int):
        raise TypeError("maxbytes must be an integer")

    return _lib.RAND_load_file(filename, maxbytes)