New submission from Min RK: HMAC digest methods call inner.digest() with no arguments, but new-in-3.6 shake algorithms require a length argument.
possible solutions: 1. add optional length argument to HMAC.[hex]digest, and pass through to inner hash object 2. set hmac.digest_size, and use that to pass through to inner hash object if inner hash object has digest_size == 0 3. give shake hashers a default value for `length` in digest methods (logically 32 for shake_256, 16 for shake_128, I think) test: import hmac, hashlib h = hmac.HMAC(b'secret', digestmod=hashlib.shake_256) h.hexdigest() # raises on self.inner.digest() requires length argument ---------- messages: 278235 nosy: minrk priority: normal severity: normal status: open title: hmac cannot be used with shake algorithms versions: Python 3.6, Python 3.7 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue28384> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
