linux-kernel - Re: drivers/char/random.c: More futzing about

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20140611192557.GE27151@thunk.org>
Date:	Wed, 11 Jun 2014 15:25:57 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	"H. Peter Anvin" <hpa@...ux.intel.com>
Cc:	George Spelvin <linux@...izon.com>, linux-kernel@...r.kernel.org,
	mingo@...nel.org, price@....edu
Subject: Re: drivers/char/random.c: More futzing about

On Wed, Jun 11, 2014 at 09:48:31AM -0700, H. Peter Anvin wrote:
> While talking about performance, I did a quick prototype of random using
> Skein instead of SHA-1, and it was measurably faster, in part because
> Skein produces more output per hash.

Which Skein parameters did you use, and how much stack space was
required for it?  Skein-512 is described as needing 200 bytes of
state, IIRC (which I assume most of which comes from Threefish key
schedule). 

						- Ted
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/