module.exports = {
  crypto_verify_16,
  crypto_verify_32
}

function vn (x, xi, y, yi, n) {
  var i, d = 0
  for (i = 0; i < n; i++) d |= x[xi + i] ^ y[yi + i]
  return (1 & ((d - 1) >>> 8)) - 1
}

function crypto_verify_16(x, xi, y, yi) {
  return vn(x, xi, y, yi, 16)
}

function crypto_verify_32(x, xi, y, yi) {
  return vn(x, xi, y, yi, 32)
}