On Sat, May 18, 2013 at 11:48 AM, Nikita Popov <nikita....@gmail.com> wrote:

> Hi internals!
>
> I just noticed that we added the PBKDF2 algorithm two times in PHP 5.5.
> Once in the hash extension, once in the OpenSSL extension.
>
> The hash_pbkdf2 function was added via this RFC:
> https://wiki.php.net/rfc/hash_pbkdf2
>
> The openssl_pbkdf2 function probably was not noticed at that time because
> it was just commited, but not mentioned anywhere else (NEWS, UPGRADING,
> etc). Only saw it in vrana's documentation updates just now. The relevant
> commit is here: https://github.com/php/php-src/commit/f4847ef
>
> It would be nice if we could have only one of those functions. I'm
> currently tending towards the hash_ variant because of the commit message
> of the openssl_ function:
>
> > No easy way to put these in the hash extension since we don't really
> support optional
> > parameters to certain algorithms. Implemented in openssl for now since
> it has it already
> > and is pretty stable.
> >
> > Only SHA1 is confirmed to work as an algorithm but openssl has a
> parameter so it can be
> > changed in the future.
>
> It seems that the author already would have preferred it in the hash
> extension and that the openssl variant only works with sha1 (or was only
> tested with it? not sure).
>
> Nikita
>

No more opinions? It would be nice to have this resolved before 5.5,
otherwise there will be no way back.

Nikita

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