Why are we adding scrypt and not argon2 anyway?

On Wed, Sep 7, 2016, at 03:25, Christian Heimes wrote:
> 
> Christian Heimes added the comment:
> 
> Benjamin, what's your take on Alex's suggestion?
> 
> <Crys> gutworth: Alex_Gaynor has asked me if hashlib.scrypt() can go into
> 2.7, too. It's a password-based KDF like hashlib.pbkdf2() but more secure
> than PBKDF2. It requires OpenSSL 1.1.0.
> <Alex_Gaynor> gutworth: I think it'd be good if this were approved, for
> the same reasons as PEP466
> <Crys> contrary to PKBDF2 it doesn't make sense to have a pure-Python
> implementation. scrypt uses ChaCha20 cipher. I don't want to add a cipher
> to CPython core (possible legal issue) and it's not available in OpenSSL
> < 1.1.0.
> 
> ----------
> nosy: +benjamin.peterson
> versions: +Python 2.7
> 
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> <http://bugs.python.org/issue27928>
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