Seqiv.AdSeqiv.iv: def of bend-osdev-aead@0.1.0.0
Import: import bend-osdev-aead@0.1.0.0/seqiv.bend as Seqiv
Lines 39-44 of bend-osdev-aead@0.1.0.0/seqiv.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-aead@0.1.0.0/seqiv.bend&start_line=39&end_line=44

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

# The IV of sequence number seq (big-endian bytes, at most as long as the
# salt): the salt XOR seq, right-aligned
def AdSeqiv.iv(~KA: Data, k: AdSeqivKey<KA>, +seq: B.Octets) -> B.Octets:
  match k:
    case AdSeqivKey{ka, +salt}:
      O.CrOct.xor(salt, B.Octets.append(B.Octets.zeros(Nat.sub(B.Octets.len(salt), B.Octets.len(seq))), seq))

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-aead@0.1.0.0/seqiv.bend&name=AdSeqivKey
  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.append
  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.zeros
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-crypto@0.1.0.0/octets.bend&name=CrOct.xor