From: Theodore Ts'o <tytso-3s7WtUTddSA@public.gmane.org>
To: Stanimir Varbanov <svarbanov-NEYub+7Iv8PQT0dZR+AlfA@public.gmane.org>
Cc: Rob Herring <rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>,
Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>,
Ian Campbell
<ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>,
Matt Mackall <mpm-VDJrAJ4Gl5ZBDgjK7y7TUQ@public.gmane.org>,
Herbert Xu
<herbert-F6s6mLieUQo7FNHlEwC/lvQIK84fMopw@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Rob Landley <rob-VoJi6FS/r0vR7s880joybQ@public.gmane.org>,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Greg Kroah-Hartman
<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>,
linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 0/2] Add support for Qualcomm's PRNG
Date: Thu, 3 Oct 2013 12:51:30 -0400 [thread overview]
Message-ID: <20131003165130.GA11974@thunk.org> (raw)
In-Reply-To: <1380811955-18085-1-git-send-email-svarbanov-NEYub+7Iv8PQT0dZR+AlfA@public.gmane.org>
On Thu, Oct 03, 2013 at 05:52:33PM +0300, Stanimir Varbanov wrote:
> This patch set adds hardware RNG driver wich is used to control the
> Qualcomm's PRNG hardware block.
> The first patch document the DT bindings needed to sucessfuly probe
> the driver and the second patch adds the driver.
Is this really a PRNG (pseudo-random number generator)? What are the
guarantees which Qualcomm is providing for the PRNG? If it's really a
PRNG such as AES(i++, NSA_KEY), then kudo to Qualcomm for being
honest.
If it is supposed to be (or at least claimed to be) a secure random
number generator ala RDRAND suitable for use in cryptographic
applications, calling it a PRNG is going to be a bit misleading.
Cheers,
- Ted
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
WARNING: multiple messages have this Message-ID (diff)
From: "Theodore Ts'o" <tytso@mit.edu>
To: Stanimir Varbanov <svarbanov@mm-sol.com>
Cc: Rob Herring <rob.herring@calxeda.com>,
Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Stephen Warren <swarren@wwwdotorg.org>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Matt Mackall <mpm@selenic.com>,
Herbert Xu <herbert@gondor.hengli.com.au>,
linux-kernel@vger.kernel.org, Rob Landley <rob@landley.net>,
devicetree@vger.kernel.org, linux-doc@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH 0/2] Add support for Qualcomm's PRNG
Date: Thu, 3 Oct 2013 12:51:30 -0400 [thread overview]
Message-ID: <20131003165130.GA11974@thunk.org> (raw)
In-Reply-To: <1380811955-18085-1-git-send-email-svarbanov@mm-sol.com>
On Thu, Oct 03, 2013 at 05:52:33PM +0300, Stanimir Varbanov wrote:
> This patch set adds hardware RNG driver wich is used to control the
> Qualcomm's PRNG hardware block.
> The first patch document the DT bindings needed to sucessfuly probe
> the driver and the second patch adds the driver.
Is this really a PRNG (pseudo-random number generator)? What are the
guarantees which Qualcomm is providing for the PRNG? If it's really a
PRNG such as AES(i++, NSA_KEY), then kudo to Qualcomm for being
honest.
If it is supposed to be (or at least claimed to be) a secure random
number generator ala RDRAND suitable for use in cryptographic
applications, calling it a PRNG is going to be a bit misleading.
Cheers,
- Ted
next prev parent reply other threads:[~2013-10-03 16:51 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-03 14:52 [PATCH 0/2] Add support for Qualcomm's PRNG Stanimir Varbanov
2013-10-03 14:52 ` Stanimir Varbanov
2013-10-03 14:52 ` [PATCH 1/2] ARM: DT: msm: Add Qualcomm's PRNG driver binding document Stanimir Varbanov
2013-10-03 14:52 ` Stanimir Varbanov
2013-10-03 14:52 ` [PATCH 2/2] hwrng: msm: Add PRNG support for MSM SoC's Stanimir Varbanov
2013-10-03 14:52 ` Stanimir Varbanov
2013-10-03 19:25 ` Stephen Boyd
2013-10-03 19:25 ` Stephen Boyd
2013-10-04 16:31 ` Stanimir Varbanov
2013-10-04 16:31 ` Stanimir Varbanov
2013-10-04 16:37 ` Stephen Boyd
2013-10-04 16:37 ` Stephen Boyd
2013-10-09 8:23 ` Stanimir Varbanov
2013-10-09 8:23 ` Stanimir Varbanov
[not found] ` <1380811955-18085-1-git-send-email-svarbanov-NEYub+7Iv8PQT0dZR+AlfA@public.gmane.org>
2013-10-03 16:51 ` Theodore Ts'o [this message]
2013-10-03 16:51 ` [PATCH 0/2] Add support for Qualcomm's PRNG Theodore Ts'o
[not found] ` <20131003165130.GA11974-AKGzg7BKzIDYtjvyW6yDsg@public.gmane.org>
2013-10-04 16:23 ` Stanimir Varbanov
2013-10-04 16:23 ` Stanimir Varbanov
[not found] ` <524EEB96.6040707-NEYub+7Iv8PQT0dZR+AlfA@public.gmane.org>
2013-10-04 18:10 ` Theodore Ts'o
2013-10-04 18:10 ` Theodore Ts'o
2013-10-09 14:46 ` Stanimir Varbanov
2013-10-09 15:07 ` H. Peter Anvin
2013-10-09 16:03 ` Theodore Ts'o
2013-10-09 16:24 ` H. Peter Anvin
2013-10-10 7:46 ` rngd (was: [PATCH 0/2] Add support for Qualcomm's PRNG) Clemens Ladisch
2013-10-10 15:08 ` rngd H. Peter Anvin
2013-10-10 19:48 ` rngd Theodore Ts'o
2013-10-10 10:41 ` [PATCH 0/2] Add support for Qualcomm's PRNG Paul Mackerras
2013-10-10 15:08 ` H. Peter Anvin
2013-10-10 13:47 ` Stanimir Varbanov
2013-10-11 7:05 ` Clemens Ladisch
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20131003165130.GA11974@thunk.org \
--to=tytso-3s7wtutddsa@public.gmane.org \
--cc=devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org \
--cc=herbert-F6s6mLieUQo7FNHlEwC/lvQIK84fMopw@public.gmane.org \
--cc=ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org \
--cc=linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=mark.rutland-5wv7dgnIgG8@public.gmane.org \
--cc=mpm-VDJrAJ4Gl5ZBDgjK7y7TUQ@public.gmane.org \
--cc=pawel.moll-5wv7dgnIgG8@public.gmane.org \
--cc=rob-VoJi6FS/r0vR7s880joybQ@public.gmane.org \
--cc=rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org \
--cc=svarbanov-NEYub+7Iv8PQT0dZR+AlfA@public.gmane.org \
--cc=swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.