Kbkdf.CrKbkdf.counter_kdf: def of bend-osdev-crypto@0.1.0.0
Import: import bend-osdev-crypto@0.1.0.0/kbkdf.bend as Kbkdf
Lines 113-117 of bend-osdev-crypto@0.1.0.0/kbkdf.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-crypto@0.1.0.0/kbkdf.bend&start_line=113&end_line=117

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

# K_OUT of n bytes in counter mode over the MAC (~K, ~key, ~compute) with
# hlen-byte tags, an r = 8 rlen bit counter and an llen-byte [L]_2
def CrKbkdf.counter_kdf(~K: Data, ~key: B.Octets -> Result<&2, &2, Cr.CrError, K>, ~compute: K -> B.Octets -> B.Octets, ~hlen: Nat, ~rlen: Nat, ~llen: Nat, ki: B.Octets, label: B.Octets, context: B.Octets, +n: Nat) -> Result<&2, &2, Cr.CrError, B.Octets>:
  +max = Nat.sub(Nat.pow(2n, Nat.mul(8n, rlen)), 1n)
  cr.kb.checked(~K, ~compute, ~rlen, cr.kb.fits(hlen, llen, n, max), key(ki), CrKbkdf.fixed(~llen, label, context, n), n)

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.mul
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.pow
  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=bend-osdev-bytes@0.1.1.0/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/kbkdf.bend&name=CrKbkdf.fixed
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-crypto@0.1.0.0/kbkdf.bend&name=cr.kb.checked
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-crypto@0.1.0.0/kbkdf.bend&name=cr.kb.fits