[Python-Dev] Right place for PBKDF2 wrapper

[Brett Cannon]

On Sat, Oct 12, 2013 at 1:19 PM, Christian Heimes <christian at python.org>wrote:

> Hi,
>
> I have written a interface to OpenSSL's PKCS5_PBKDF2_HMAC() function. It
> implements PKCS#5's password based key derivation function 2 with HMAC
> as pseudo-random function. It supports any digest that is supported by
> OpenSSL, e.g. SHA-1, SHA-256 and SHA-512. It's a low level inteface that
> takes the digest as unicode name, password and salt as bytes/buffer,
> keylen and rounds as int.
>
> I'd like to add the feature to Python 3.4. Now I'm looking for a good
> place to put it and some high level functions. In the future I like to
> add scrypt and bcrypt key stretching and key derivation functions, too.
> What's a good place for them??
>
> [SNIP]
> * add PBKDF2 to ``hashlib``
> * make ``hashlib`` a package and add PBKDF2 to a new ``hashlib.kdf`` module
> * make ``hashlib`` a package and add PBKDF2 to a new ``hashlib.pbkdf2``
> module
>

One of these three depending on how bug the new API is (smaller the less
need to add new modules).
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