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Issue 18240: The HMAC module is no longer restricted to bytes and accepts

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any bytes-like object, e.g. memoryview. Original patch by Jonas Borgström.
This commit is contained in:
Christian Heimes 2013-07-01 13:08:42 +02:00
parent ec4bdac8dd
commit 04926aeb2f
5 changed files with 33 additions and 11 deletions
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18
Doc/library/hmac.rst
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@ -16,20 +16,26 @@ This module implements the HMAC algorithm as described by :rfc:`2104`.
.. function:: new(key, msg=None, digestmod=None)
Return a new hmac object. *key* is a bytes object giving the secret key. If
*msg* is present, the method call ``update(msg)`` is made. *digestmod* is
the digest constructor or module for the HMAC object to use. It defaults to
the :func:`hashlib.md5` constructor.
Return a new hmac object. *key* is a bytes or bytearray object giving the
secret key. If *msg* is present, the method call ``update(msg)`` is made.
*digestmod* is the digest constructor or module for the HMAC object to use.
It defaults to the :func:`hashlib.md5` constructor.
.. versionchanged:: 3.4
Parameter *key* can be a bytes or bytearray object. Parameter *msg* can
be of any type supported by :mod:`hashlib`.
An HMAC object has the following methods:
.. method:: HMAC.update(msg)
Update the hmac object with the bytes object *msg*. Repeated calls are
equivalent to a single call with the concatenation of all the arguments:
Update the hmac object with *msg*. Repeated calls are equivalent to a
single call with the concatenation of all the arguments:
``m.update(a); m.update(b)`` is equivalent to ``m.update(a + b)``.
.. versionchanged:: 3.4
Parameter *msg* can be of any type supported by :mod:`hashlib`.
.. method:: HMAC.digest()