On Fri, Dec 09, 2022 at 03:01:19PM +0000, Hannes Tschofenig wrote: > Hi Ilari > > - Define HSI so that set of fields can change. > - Parametrized by alg. > - No need for registry. > > [Hannes] In your proposal HSI is an array with no extensibility > options. In previous discussions this was justified by saying that > it is fine to create a new HSI v2 when changes are needed. > > It seems that you have changed your view on the approach. Is this > correct?
This is in line with my previous proposal. HSI and HSI v2 would have the same parameter identifier (which is the critical resource here). The recipient would use alg to decide the two apart. That is why the proposal specifies both that: - HSI parameter value is bstr / array / dictionary. - For alg==HPKE-v1-BASE, HSI parameter value is HpkeSenderInfo. ... So that when alg!=HPKE-v1-BASE, HSI parameter value can be something else than HpkeSenderInfo (e.g., HpkeSenderInfoV2). Yes, I realize that this could cause issues with some kinds of implementations. -Ilari _______________________________________________ COSE mailing list [email protected] https://www.ietf.org/mailman/listinfo/cose
