Add crypto:pbkdf2_hmac/5 BIF to the crypto module

[Nelson Vides]

Just saying, I already implemented NIFs for this a long time ago, obviously outperforming Basho’s lib by dozens of times, but also even outperforming OpenSSL’s implementation. https://github.com/esl/fast_pbkdf2/ <https://github.com/esl/fast_pbkdf2/> Just some free self-promotion there I guess, but there’s benefit to have it on OTP itself I suppose.

> On 18 Nov 2021, at 16:58, Bryan Frimin <bryan@REDACTED> wrote:
> 
> Hello everyone,
> 
> I propose to add the pbkdf2_hmac/2 function to the crypto module.
> 
> PBKD2 with HMAC is used by a lot of applications and libraries in
> Erlang, currently, most of it uses the basho one or a fork of the basho
> one.
> 
> As Erlang already binds OpenSSL and because this function is available
> even on the OpenSSL 0.9.8c, I think it can be a great UX improvement to
> have it from the OTP instead of an external library.
> 
> It's why I suggest enriching the crypto module with this function. I've
> already opened a pull request[1].
> 
> I tried as much as possible to follow the contribution guide. Don't
> hesitate to tell me if I made a mistake somewhere.
> 
> [1] https://github.com/erlang/otp/pull/5421
> 
> Regards,
> 
> -- 
> Bryan Frimin
> https://www.frimin.fr
> bryan@REDACTED


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