Skip to content

Use faster all-at-once xor on Python 3.2+. #5

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
JustinTArthur wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Use faster all-at-once xor on Python 3.2+. #5

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
12 changes: 10 additions & 2 deletions pbkdf2.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -101,8 +101,16 @@ def callable(obj):
return hasattr(obj, '__call__')
def b(s):
return s.encode("latin-1")
def binxor(a, b):
return bytes([x ^ y for (x, y) in zip(a, b)])
if hasattr(int, 'to_bytes') and hasattr(int, 'from_bytes'):
_sys_byteorder = sys.byteorder
_b2i = int.from_bytes
def binxor(a, b):
a_int = _b2i(a, _sys_byteorder)
b_int = _b2i(b, _sys_byteorder)
return (a_int ^ b_int).to_bytes(len(a), _sys_byteorder)
else:
def binxor(a, b):
return bytes([x ^ y for (x, y) in zip(a, b)])
from base64 import b64encode as _b64encode
def b64encode(data, chars="+/"):
if isunicode(chars):
Expand Down