test vectors for expander should cover dst larger than 255

cfrg / draft-irtf-cfrg-hash-to-curve

Hashing to Elliptic Curves

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test vectors for expander should cover dst larger than 255 #314

Closed armfazh closed 2 years ago

armfazh commented 3 years ago

Add a couple of test vectors for expander that cover longer dst (larger than 255)

chris-wood commented 2 years ago

DST is at most 255 bytes long, as its length must fit in a single octet. Adding test vectors for DSTs longer than this doesn't seem useful. Can we close this?

kwantam commented 2 years ago

Don't we have a provision to prehash a longer DST? I think that's what this is referring to.

chris-wood commented 2 years ago

Ah, right, this section.