Hkdf.CrHkdf.derive: def of bend-osdev-crypto@0.1.0.0
Import: import bend-osdev-crypto@0.1.0.0/hkdf.bend as Hkdf
Lines 60-62 of bend-osdev-crypto@0.1.0.0/hkdf.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-crypto@0.1.0.0/hkdf.bend&start_line=60&end_line=62

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

# Extract, then expand: the KDF interface's ~derive (secret, salt, info, len)
def CrHkdf.derive(~bsize: Nat, ~dsize: Nat, ~digest: B.Octets -> B.Octets, ikm: B.Octets, salt: B.Octets, info: B.Octets, len: Nat) -> Result<&2, &2, Cr.CrError, B.Octets>:
  CrHkdf.expand(~bsize, ~dsize, ~digest, CrHkdf.extract(~bsize, ~dsize, ~digest, salt, ikm), info, len)

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.1/bytes.bend&name=Octets
  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/hkdf.bend&name=CrHkdf.expand
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-crypto@0.1.0.0/hkdf.bend&name=CrHkdf.extract