Re: scrypt Internet Draft

[Nick Galbreath <nickg@client9.com>]

Hi team-scrypt!

I'll read  the spec more carefully once I'm back home, but quickly...

Is there a spec for the crypt function/command line format?  Oddly the
best spec I've seen is the PHP function by the same name.

http://php.net/manual/en/function.crypt.php

FreeBSD has some details as well
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/crypt.html

and Ulrich Drepper's crypt sha-256/sha-512 impl:
http://www.akkadia.org/drepper/SHA-crypt.txt

Ideally I'd like a crypt-like format e.g. such as $7$... that
represents scrypt with related parameters.  Given that Ulrich Drepper
just wrote a txt file, and didn't appear to submit to an official
standards body, I suspect that there is no standard.

Any tips here, or possibility of adding an appendix to this spec
documenting a crypt-style format?  Or is this done, and I'm just not
seeing it?

thanks

Nick Galbreath
nickg









On Mon, Sep 17, 2012 at 8:18 PM, Colin Percival <cperciva@tarsnap.com> wrote:
> Hi all,
>
> In case anyone here is interested in standards processes, you should be
> aware that Simon Josefsson has written up scrypt as an Internet Draft
> which will hopefully end up turning into an RFC:
>   http://tools.ietf.org/html/draft-josefsson-scrypt-kdf-00
>
> --
> Colin Percival
> Security Officer Emeritus, FreeBSD | The power to serve
> Founder, Tarsnap | www.tarsnap.com | Online backups for the truly paranoid