Arjun <ccldar...@icloud.com> added the comment:
The only things I think we should add to the current hmac tests are
test_update_error_handling and test_with_invalid_msg.
For test_withnoncallable_digestmod(), hmac itself seems it can no longer be
used:
>>> hmac.HMAC(b"gggg", None, "hmac")
<module '_hashlib' from
'/Users/arjun/Python/Sources/cpython/build/lib.macosx-11.4-x86_64-3.11-pydebug/_hashlib.cpython-311d-darwin.so'>
using new
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/arjun/Python/Sources/cpython/Lib/hmac.py", line 61, in __init__
self._init_hmac(key, msg, digestmod)
File "/Users/arjun/Python/Sources/cpython/Lib/hmac.py", line 69, in _init_hmac
self._hmac = _hashopenssl.hmac_new(key, msg, digestmod=digestmod)
ValueError: unsupported hash type hmac
For tests test_small_block_size and test_no_block_size, a custom .blocksize
cannot be set (changing .block_size has no difference on digest()):
>>> hmac.HMAC(b"gggg", None, "md5").blocksize = 15
<module '_hashlib' from
'/Users/arjun/Python/Sources/cpython/build/lib.macosx-11.4-x86_64-3.11-pydebug/_hashlib.cpython-311d-darwin.so'>
using new
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'HMAC' object attribute 'blocksize' is read-only
```
class myHMAC(hmac.HMAC):
blocksize = 1
def __init__(self, key, msg, digestmod_):
super().__init__(key, msg, digestmod=digestmod_)
h = myHMAC(b"key", b"", digestmod_="md5")
h.digest() # <- works perfectly fine.
```
Does this sound okay? I can go ahead an implement it if so.
----------
nosy: +CCLDArjun -Vijay.Majagaonkar, christian.heimes, eric.araujo,
gregory.p.smith, packetslave, pitrou
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<https://bugs.python.org/issue14322>
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