On Thu, Sep 01, 2022 at 04:25:07PM +0000, Hannes Tschofenig wrote: > Hi Ajitomi, > > The challenge is that the COSE WG has already defined formats for > certain public keys and, at least at the last IETF meeting, was in > favor of using those existing key formats. > > Having multiple ways to encode the same information is not great.
Unfortunately, using the existing formats is a tradeoff: Smaller keys and messages for increased implementation complexity (at least if using stock HPKE libraries). And sometimes not having multiple ways to encode the same information would require adding more explicit checks, which is not great either. Which is why I want to see compact NIST curves in HPKE: Even smaller keys without extra complexity. -Ilari _______________________________________________ COSE mailing list [email protected] https://www.ietf.org/mailman/listinfo/cose
