\edZddlZddlZdZ ejZ ejdZddZy#e$reZY"wxYw#e $rddZYywxYw) z* Secret utilities. .. versionadded:: 3.5 Nct|}t|}t|t|k7ryd}t||D]\}}|t|t|z z}!|dk(S)anReturn True if both string or binary inputs are equal, otherwise False. This function should take a constant amount of time regardless of how many characters in the strings match. This function uses an approach designed to prevent timing analysis by avoiding content-based short circuiting behaviour, making it appropriate for cryptography. Fr)strlenzipord)firstsecondresultxys 8/usr/lib/python3/dist-packages/oslo_utils/secretutils.py_constant_time_comparersh JE [F 5zS[  FE6""1#a&3q6/!" Q;Fusedforsecurityc0tj||S)aReturn an md5 hashlib object using usedforsecurity parameter For python distributions that support the usedforsecurity keyword parameter, this passes the parameter through as expected. See https://bugs.python.org/issue9216 rhashlibmd5stringrs r rr4s{{6?CCrc,tj|S)zReturn an md5 hashlib object without usedforsecurity parameter For python distributions that do not yet support this keyword parameter, we drop the parameter rrs r rr=s {{6""r)rT) __doc__rhmacrcompare_digestconstant_time_compareAttributeErrorr_ TypeErrorrr r!so  &3 //# E*AD 323###s 4A>> A  A