Re: [lamps] LAMPS Virtual Interim in Sept. 2022
Russ Housley <housley@vigilsec.com> Fri, 16 September 2022 17:53 UTC
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From: Russ Housley <housley@vigilsec.com>
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Date: Fri, 16 Sep 2022 13:53:53 -0400
Cc: LAMPS <spasm@ietf.org>
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To: Mike Ounsworth <Mike.Ounsworth@entrust.com>
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Subject: Re: [lamps] LAMPS Virtual Interim in Sept. 2022
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Mike: I've added a topic at the end of the agenda. Please send slides. Russ > On Sep 16, 2022, at 12:44 PM, 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
- [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