Re: [lamps] [CFRG] [EXTERNAL] Re: LAMPS Virtual Interim in Sept. 2022
Orie Steele <orie@transmute.industries> Fri, 16 September 2022 16:57 UTC
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From: Orie Steele <orie@transmute.industries>
Date: Fri, 16 Sep 2022 11:56:50 -0500
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To: Mike Ounsworth <Mike.Ounsworth=40entrust.com@dmarc.ietf.org>
Cc: Russ Housley <housley@vigilsec.com>, LAMPS <spasm@ietf.org>, "cfrg@irtf.org" <cfrg@irtf.org>, Mike Prorock <mprorock@mesur.io>
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Subject: Re: [lamps] [CFRG] [EXTERNAL] Re: LAMPS Virtual Interim in Sept. 2022
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+1 especially to this part: > - You can externalize that first hashing step of the Dilithium / Falcon sign / verify algs outside of the crypto module without breaking interop, but doing so will need to be mentioned in the standards, and will need security review. We were concerned about the potential impact of this on https://datatracker.ietf.org/doc/draft-prorock-cose-post-quantum-signatures/ It's not clear to me if we would need to make changes, or take a dependency on a CFRG related item. Unsure if I should be adding the cose list here as well, but happy to support however I can. Regards, OS On Fri, Sep 16, 2022 at 11:46 AM Mike Ounsworth <Mike.Ounsworth= 40entrust.com@dmarc.ietf.org> wrote: > + CFRG as this is request for crypto security review > > > Sorry for the late reply, > > Could I get a slot at the LAMPS interim to discuss the hash-then-sign > issue for Dilithium and Falcon? > > > > Issue summary: > > - Needing to stream your entire message to your crypto module is dumb > (think streaming an entire firmware image to your network HSM for > code-signing, or to your TPM for secure boot validation; yuck). > - You want to send just a hash. > - Both Dilithium and Falcon have, as their first internal step' a hash of > the message prepended with a nonce (the pubkey for Dilithium, and a random > r for Falcon), I assume in order to block pre-computed collision attacks. > - If you, for example, do SHA256(m) before calling Dilithium.sign(), then > you have re-introduced that collision attack. > - You can externalize that first hashing step of the Dilithium / Falcon > sign / verify algs outside of the crypto module without breaking interop, > but doing so will need to be mentioned in the standards, and will need > security review. > > --- > Mike Ounsworth > > -----Original Message----- > From: Spasm <spasm-bounces@ietf.org> On Behalf Of Russ Housley > Sent: September 8, 2022 3:21 PM > To: LAMPS <spasm@ietf.org> > Cc: Tim Hollebeek <tim.hollebeek@digicert.com> > Subject: [EXTERNAL] Re: [lamps] LAMPS Virtual Interim in Sept. 2022 > > WARNING: This email originated outside of Entrust. > DO NOT CLICK links or attachments unless you trust the sender and know the > content is safe. > > ______________________________________________________________________ > A few things for tomorrow have come up, which prevented us from picking > that date. So, we care going to hold the LAMPS Virtual Interim on 19 Sept. > 2022 at 9:00 Eastern. > > We already have two agenda items. Please let us know if you want to > present on another topic. > > Russ & Tim > > > > On Aug 24, 2022, at 12:07 PM, Russ Housley <housley@vigilsec.com> wrote: > > > > Two agenda topics did not get covered at IETF 114: > > - draft-perret-prat-lamps-cms-pq-kem > > - draft-kario-pkcs12-pbmac1 > > > > There may be other topics that have progressed enough to need some > discussion. > > > > Tim and I think that 60 minutes will be enough to to cover these topics. > > > > Please fill out the following poll to help us find the best time for the > meeting: > > > https://urldefense.com/v3/__https://doodle.com/meeting/participate/id/dN9x14vb__;!!FJ-Y8qCqXTj2!ZDZM1GgJw-UNsq7N5jg8dUYx470A6dFZyNqiwQrJRoRhH73AH0b35-Kl0QnYNyJLmi_5VMh0JJP1FOEFWwmtfYwZA0K4$ > > > > Russ & Tim > > > > > > _______________________________________________ > > Spasm mailing list > > Spasm@ietf.org > > > https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/spasm__;!!FJ-Y8qCqXTj2!ZDZM1GgJw-UNsq7N5jg8dUYx470A6dFZyNqiwQrJRoRhH73AH0b35-Kl0QnYNyJLmi_5VMh0JJP1FOEFWwmtfZyACGq2$ > > _______________________________________________ > Spasm mailing list > Spasm@ietf.org > > https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/spasm__;!!FJ-Y8qCqXTj2!ZDZM1GgJw-UNsq7N5jg8dUYx470A6dFZyNqiwQrJRoRhH73AH0b35-Kl0QnYNyJLmi_5VMh0JJP1FOEFWwmtfZyACGq2$ > Any email and files/attachments transmitted with it are confidential and > are intended solely for the use of the individual or entity to whom they > are addressed. If this message has been sent to you in error, you must not > copy, distribute or disclose of the information it contains. Please notify > Entrust immediately and delete the message from your system. > > _______________________________________________ > CFRG mailing list > CFRG@irtf.org > https://www.irtf.org/mailman/listinfo/cfrg > -- *ORIE STEELE* Chief Technical Officer www.transmute.industries <https://www.transmute.industries>
- [lamps] DRAFT LAMPS Agenda for IETF 114 Russ Housley
- Re: [lamps] DRAFT LAMPS Agenda for IETF 114 Brockhaus, Hendrik
- Re: [lamps] DRAFT LAMPS Agenda for IETF 114 Dmitry Belyavsky
- Re: [lamps] DRAFT LAMPS Agenda for IETF 114 Russ Housley
- Re: [lamps] DRAFT LAMPS Agenda for IETF 114 Dmitry Belyavsky
- [lamps] LAMPS Virtual Interim in Sept. 2022 Russ Housley
- Re: [lamps] LAMPS Virtual Interim in Sept. 2022 Russ Housley
- Re: [lamps] [EXTERNAL] Re: LAMPS Virtual Interim … Mike Ounsworth
- Re: [lamps] [CFRG] [EXTERNAL] Re: LAMPS Virtual I… Orie Steele
- Re: [lamps] [EXTERNAL] Re: LAMPS Virtual Interim … Blumenthal, Uri - 0553 - MITLL
- Re: [lamps] [EXTERNAL] Re: LAMPS Virtual Interim … Mike Ounsworth
- Re: [lamps] [EXTERNAL] Re: LAMPS Virtual Interim … Ilari Liusvaara
- Re: [lamps] LAMPS Virtual Interim in Sept. 2022 Russ Housley
- Re: [lamps] [EXTERNAL] Re: LAMPS Virtual Interim … Ilari Liusvaara
- Re: [lamps] LAMPS Virtual Interim in Sept. 2022 Russ Housley
- Re: [lamps] LAMPS Virtual Interim in Sept. 2022 Hubert Kario
- Re: [lamps] LAMPS Virtual Interim in Sept. 2022 Russ Housley
- Re: [lamps] LAMPS Virtual Interim in Sept. 2022 Brockhaus, Hendrik
- Re: [lamps] LAMPS Virtual Interim in Sept. 2022 Hubert Kario