X25519.bxor: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/spec/crypto/curve25519/x25519.bend as X25519
Lines 70-76 of bend-collections-laws-crypto@1.0.0.0/spec/crypto/curve25519/x25519.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/curve25519/x25519.bend&start_line=70&end_line=76

import Base

# swap ^= k_t, on bits
def bxor(a: Nat, b: Nat) -> Nat:
  match a:
    case 0n:
      b
    case 1n+q:
      Nat.sub(1n, b)

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub