3

x��Y��@sLdd
lm
Z

ddlmZmZ
ejr.ddlmZ
d
dd�
Zdd�Z	d	d
�Z
dS)�)
�absolute_import)�m2�util)
�Optional�
cCstj
||
|�S)
ah

    Generate cryptographically strong random number.

    :param bits:   Length of random number in bits.
    :param top:    If -1, the most significant bit can be 0. If 0, the most
                   significant bit is 1, and if 1, the two most significant
                   bits will be 1.
    :param bottom: If bottom is true, the number will be odd.
    )rZbn_rand)�bits�topZbottom�r	�/usr/lib64/python3.6/BN.py�randsrc

Cs
tj
|�
S)
z�
    Generate a random number in a range.

    :param range: Upper limit for range.
    :return:      A random number in the range [0, range)
    )r�
bn_rand_range)
�ranger	r	r
�
rand_rangesrc
CsXd
dl}
|
j
dtdd�
d}t|�
}g}x$t|�
D]}||tj|�
g
7}q2Wdj|�
S)z�
    Return a random filename, which is simply a string where all
    the characters are from the set [a-zA-Z0-9].

    :param length: Length of filename to return.
    :return:       random filename string
    r
Nz7Don't use BN.randfname(), use tempfile methods instead.�)
�
stacklevelZ?abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890�)�warnings�warn�DeprecationWarning�lenr
rr�join)ZlengthrZlettersZ
lettersLenZfname�
xr	r	r
�	randfname's	








rN���)rr
)Z
__future__rZM2CryptorrZpy27plusZtypingrrrrr	r	r	r
�<module>
s