On Tue, Aug 18, 2020, at 09:04, Christopher Patton wrote:
> Just to be clear, you're proposing something like this? Referring to
> the KDF API called for in draft-irtf-cfrg-hpke-05:
>
> config_digest = Expand(PRK=Extract("some_salt", "some_label",
> IKM=config), "some_info", 16)
> It's maybe more hashing than necessary, but I'd be good with this.
Something like that yeah. And yes, that's a lot of hashing. But that's a
lower-order concern. Maybe if we try to find a KDF that doesn't cost so much
to operate we won't feel so bad about this.
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