PROOF.kb_checked_len: def of bend-osdev-crypto@0.1.0.0
Import: import bend-osdev-crypto@0.1.0.0/PROOF.bend as PROOF
Lines 731-736 of bend-osdev-crypto@0.1.0.0/PROOF.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-crypto@0.1.0.0/PROOF.bend&start_line=731&end_line=736

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
import bend-osdev-crypto@0.1.0.0/kbkdf.bend as Kb

def kb_checked_len(~K: Data, ~compute: K -> B.Octets -> B.Octets, ~rlen: Nat, fits: Bool, kr: Result<&2, &2, Cr.CrError, K>, +fixed: B.Octets, +n: Nat) -> {Result.map(&2, &2, Cr.CrError, B.Octets, Nat, o => B.Octets.len(o), Kb.cr.kb.checked(~K, ~compute, ~rlen, fits, kr, fixed, n)) == Result.map(&2, &2, Cr.CrError, B.Octets, Nat, o => n, Kb.cr.kb.checked(~K, ~compute, ~rlen, fits, kr, fixed, n)) : Result<&2, &2, Cr.CrError, Nat>}:
  match fits:
    case False{}:
      {==}
    case True{}:
      kb_key_len(~K, ~compute, ~rlen, kr, fixed, n)

Uses (9):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  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=Base/base.bend&name=Result.map
  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.len
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-crypto@0.1.0.0/PROOF.bend&name=kb_key_len
  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=cr.kb.checked