Blamka.bla: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/src/crypto/argon2/blamka.bend as Blamka
Lines 18-23 of bend-collections-laws-crypto@1.0.0.0/src/crypto/argon2/blamka.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/argon2/blamka.bend&start_line=18&end_line=23

import Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake2b/types.bend as T
import bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake2b/lane.bend as L

# fBlaMka(x, y) = x + y + 2 * trunc(x) * trunc(y) mod 2^64 (RFC 9106 section 3.6).
def bla(x: T.Lane, y: T.Lane) -> T.Lane:
  match x y:
    case T.W{+xl,+xh} T.W{+yl,+yh}:
      +p = prod(xl,yl)
      L.add(L.add(T.W{xl,xh},T.W{yl,yh}),L.add(p,p))

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/argon2/blamka.bend&name=prod
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake2b/lane.bend&name=add
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake2b/types.bend&name=Lane