def CrHkdf.derive

bend-osdev-crypto@0.1.0.0 · hkdf.bend:60

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

60# Extract, then expand: the KDF interface's ~derive (secret, salt, info, len)
61def 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>:
62  CrHkdf.expand(~bsize, ~dsize, ~digest, CrHkdf.extract(~bsize, ~dsize, ~digest, salt, ikm), info, len)