Authenc.ad.au.key: def of bend-osdev-aead@0.1.0.0
Import: import bend-osdev-aead@0.1.0.0/authenc.bend as Authenc
Lines 104-107 of bend-osdev-aead@0.1.0.0/authenc.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-aead@0.1.0.0/authenc.bend&start_line=104&end_line=107

import Base
import bend-osdev-bytes@0.1.0.0/bytes.bend as B
import bend-osdev-crypto@0.1.0.0/crypto.bend as Cr

def ad.au.key(~KE: Data, ~KM: Data, ~ekey: B.Octets -> Result<&2, &2, Cr.CrError, KE>, ~mkey: B.Octets -> Result<&2, &2, Cr.CrError, KM>, +elen: Nat, +o: B.Octets) -> Result<&2, &2, Cr.CrError, AdAuthencKey<KE, KM>>:
  +n = B.Octets.len(o)
  +m = Nat.sub(n, elen)
  Result.bind(&2, &2, Cr.CrError, Unit, AdAuthencKey<KE, KM>, Cr.CrError.check(Nat.is_le(elen, n), Cr.CrBadKeyLength{n}), u => AdAuthenc.key_of(~KE, ~KM, ~ekey, ~mkey, B.Octets.drop(m, o), B.Octets.take(m, o)))

Uses (14):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_le
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result.bind
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Unit
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-aead@0.1.0.0/authenc.bend&name=AdAuthenc.key_of
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-aead@0.1.0.0/authenc.bend&name=AdAuthencKey
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=Octets
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=Octets.drop
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=Octets.len
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=Octets.take
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-crypto@0.1.0.0/crypto.bend&name=CrError
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-crypto@0.1.0.0/crypto.bend&name=CrError.check