Re: [lamps] FW: New Version Notification for draft-massimo-lamps-pq-sig-certificates-00.txt

[Ilari Liusvaara <[e-mail]>]

On Fri, Jul 08, 2022 at 08:08:24PM +0000, Massimo, Jake wrote:
> Hi!
> 
> I'd like to introduce the 00 draft of the I-D we discussed @ IETF 113
> (and we will discuss again @ IETF 114) that will document algorithm
> identifiers and ASN.1 encoding format for NIST's PQC signature
> algorithms in X.509. As discussed by Sean Turner in the introduction
> of the I-D draft-turner-lamps-nist-pqc-kem-certificates, we are
> splitting up the KEMs from the signature algorithms into separate
> I-Ds. This is the signature algorithm part. We focus on single PQC
> algorithm rather than hybrid constructions that are covered in other
> drafts. We are planning to use the algorithm identifiers assigned by
> NIST. The draft discusses the signature algorithm Dilithium.
> 
> If there are any feedback or comments to the draft in advance to the
> meeting, feel free to contact me.

Don't split the private key into fields. Standard Dilithium
implementation takes the private key as octet string (as this is crypto-
graphic BCP), so any splitting causes application to need to perform
redundant merging/splitting in order to adapt what is in private key
with what Dilithium implementation takes.

And things get even worse as tr is SHAKE output which gets sticked
into a BIT STRING... Which is a cursed combination.


> On 08/07/2022, 11:37, "[e-mail]" <[e-mail]> wrote:
> 
>     has been successfully submitted by Jake Massimo and posted to the
>     IETF repository.
> 
>     Name:           draft-massimo-lamps-pq-sig-certificates
>     Revision:       00
>     Title:          Algorithms and Identifiers for Post-Quantum Algorithms
>     Document date:  2022-07-08
>     Group:          Individual Submission
>     Pages:          12
>     URL:            https://www.ietf.org/archive/id/draft-massimo-lamps-pq-sig-certificates-00.txt
>     Status:         https://datatracker.ietf.org/doc/draft-massimo-lamps-pq-sig-certificates/
>     Html:           https://www.ietf.org/archive/id/draft-massimo-lamps-pq-sig-certificates-00.html
>     Htmlized:       https://datatracker.ietf.org/doc/html/draft-massimo-lamps-pq-sig-certificates
 

-Ilari