Update draft-irtf-cfrg-vdaf.md

Co-authored-by: Christopher Patton <[email protected]>
cfrg · Oct 11, 2023 · f8b9ce8 · f8b9ce8
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@@ -4526,7 +4526,7 @@ differential privacy.
 
 ## Requirements for XOFs {#xof-vs-ro}
 
-As described in {{xof}}, our constructions rely on an interface for eXtendable
+As described in {{xof}}, our constructions rely on eXtendable
 Output Functions (XOFs). In the security analyses of our protocols, these are
 usually modeled as random oracles. XofShake128 is designed to be
 indifferentiable from a random oracle {{MRH04}}, making it a suitable choice