Re: [openpgp] SHA3 algorithm ids.
Derek Atkins <derek@ihtfp.com> Mon, 17 August 2015 05:23 UTC
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From: Derek Atkins <derek@ihtfp.com>
To: Bill Frantz <frantz@pwpconsult.com>
References: <r422Ps-1075i-B91C7CA071994E60BDD35270ADD9854F@Williams-MacBook-Pro.local>
Date: Sun, 16 Aug 2015 11:47:57 -0400
In-Reply-To: <r422Ps-1075i-B91C7CA071994E60BDD35270ADD9854F@Williams-MacBook-Pro.local> (Bill Frantz's message of "Fri, 14 Aug 2015 11:19:42 -0700")
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Cc: IETF OpenPGP <openpgp@ietf.org>, Phillip Hallam-Baker <phill@hallambaker.com>, Derek Atkins <derek@ihtfp.com>, ianG <iang@iang.org>, Peter Gutmann <pgut001@cs.auckland.ac.nz>
Subject: Re: [openpgp] SHA3 algorithm ids.
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Bill Frantz <frantz@pwpconsult.com> writes: > On 8/13/15 at 6:32 AM, derek@ihtfp.com (Derek Atkins) wrote: > >>>Yes, these chips are not going away any time soon. The number of chips being >>>made with 6502 based cores has increased every year since the 80s. But the >>>problem with the chips isn't just that they are slow. >> >>I'm not seeing 6502, but I am seeing a lot of 8051. > > I think in the IoT space, we will need to have signed software > updates. I don't think there is much of an issue taking several > seconds to verify an update signature, but these 8 bit processors seem > like the right level of hardware for these IoT devices. Yes, signed software is definitely one use case. However, often on these systems it's more than just authenticating a software update; sometimes it might actually want to check the signature on every bootup (to prevent an attack on the flash/firmware)! I'll note that there are alternate algorithms that run much faster than ECC (e.g. Algebraic Eraser can run in the tens of miliseconds instead of the ones of seconds of ECC)! However my real point is that we should not ignore these platforms, and more specifically we should remember that they might not have the power to run the same algorithms that work fine on our x86-64 servers. > Cheers - Bill -derek -- Derek Atkins 617-623-3745 derek@ihtfp.com www.ihtfp.com Computer and Internet Security Consultant
- [openpgp] SHA3 algorithm ids. Werner Koch
- Re: [openpgp] SHA3 algorithm ids. Paul Wouters
- Re: [openpgp] SHA3 algorithm ids. Phillip Hallam-Baker
- Re: [openpgp] SHA3 algorithm ids. ianG
- Re: [openpgp] SHA3 algorithm ids. Phillip Hallam-Baker
- Re: [openpgp] SHA3 algorithm ids. ianG
- Re: [openpgp] SHA3 algorithm ids. Christoph Anton Mitterer
- Re: [openpgp] SHA3 algorithm ids. Phillip Hallam-Baker
- Re: [openpgp] SHA3 algorithm ids. ianG
- Re: [openpgp] SHA3 algorithm ids. Werner Koch
- Re: [openpgp] SHA3 algorithm ids. Peter Gutmann
- Re: [openpgp] SHA3 algorithm ids. Christoph Anton Mitterer
- Re: [openpgp] SHA3 algorithm ids. Stephen Farrell
- Re: [openpgp] SHA3 algorithm ids. ianG
- Re: [openpgp] SHA3 algorithm ids. Derek Atkins
- Re: [openpgp] SHA3 algorithm ids. Phillip Hallam-Baker
- Re: [openpgp] SHA3 algorithm ids. Werner Koch
- Re: [openpgp] SHA3 algorithm ids. ianG
- Re: [openpgp] SHA3 algorithm ids. Paul Wouters
- Re: [openpgp] SHA3 algorithm ids. Phillip Hallam-Baker
- Re: [openpgp] SHA3 algorithm ids. Peter Gutmann
- Re: [openpgp] SHA3 algorithm ids. Phillip Hallam-Baker
- [openpgp] Why or why not SHA{2,3}-512 (was: SHA3 … Werner Koch
- [openpgp] WWhy or why not SHA{2,3}-512 (was: SHA3… Werner Koch
- Re: [openpgp] SHA3 algorithm ids. Werner Koch
- Re: [openpgp] SHA3 algorithm ids. Werner Koch
- Re: [openpgp] SHA3 algorithm ids. Daniel Kahn Gillmor
- Re: [openpgp] SHA3 algorithm ids. Daniel Kahn Gillmor
- Re: [openpgp] SHA3 algorithm ids. Peter Gutmann
- [openpgp] SHA-x performance (was: SHA3 algorithm … Werner Koch
- Re: [openpgp] SHA-x performance (was: SHA3 algori… Daniel Kahn Gillmor
- Re: [openpgp] SHA-x performance (was: SHA3 algori… Peter Gutmann
- Re: [openpgp] SHA-x performance (was: SHA3 algori… Dang, Quynh
- Re: [openpgp] SHA-x performance Werner Koch
- Re: [openpgp] SHA3 algorithm ids. ianG
- Re: [openpgp] SHA-x performance Werner Koch
- Re: [openpgp] Why or why not SHA{2, 3}-512 (was: … Phillip Hallam-Baker
- Re: [openpgp] SHA-x performance Peter Gutmann
- Re: [openpgp] Why or why not SHA{2, 3}-512 Werner Koch
- Re: [openpgp] SHA-x performance ianG
- Re: [openpgp] SHA-x performance Phillip Hallam-Baker
- Re: [openpgp] SHA3 algorithm ids. Derek Atkins
- Re: [openpgp] SHA-x performance ianG
- Re: [openpgp] SHA3 algorithm ids. Phillip Hallam-Baker
- Re: [openpgp] SHA-x performance Bill Frantz
- Re: [openpgp] SHA-x performance Hilarie Orman
- Re: [openpgp] WWhy or why not SHA{2, 3}-512 (was:… Phillip Hallam-Baker
- Re: [openpgp] SHA-x performance NIIBE Yutaka
- Re: [openpgp] SHA3 algorithm ids. Derek Atkins
- Re: [openpgp] SHA-x performance Peter Gutmann
- Re: [openpgp] SHA3 algorithm ids. Bill Frantz
- Re: [openpgp] SHA3 algorithm ids. ianG
- Re: [openpgp] SHA3 algorithm ids. Derek Atkins
- Re: [openpgp] SHA3 algorithm ids. Bill Frantz
- Re: [openpgp] SHA3 algorithm ids. Phillip Hallam-Baker
- Re: [openpgp] SHA3 algorithm ids. Peter Gutmann
- Re: [openpgp] SHA3 algorithm ids. Andrey Jivsov
- Re: [openpgp] SHA3 algorithm ids. ianG
- Re: [openpgp] SHA3 algorithm ids. Robert J. Hansen
- Re: [openpgp] SHA3 algorithm ids. Werner Koch