Re: Re: hash_hkdf() signature and return value
| From: | Niklas Keller | Date: | Fri, 08 Sep 2017 07:57:00 +0000 |
| Subject: | Re: Re: hash_hkdf() signature and return value | ||
| References: | 1 2 3 4 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-100461@lists.php.net to get a copy of this message | ||
>
> Note for others: "The extract step in HKDF can concentrate existing
> entropy
> but cannot amplify entropy." is not came from the RFC. If a RFC states
> this I would be stunned. Please read on you'll see the evidence.
>
This is ridiculous. Be stunned. It's right in the section about
applications of HKDF: https://tools.ietf.org/html/rfc5869#section-4,
in the
middle of the second paragraph.
Please stop, it's enough.
Regards, Niklas