cryptoSecretboxDetached static method

DetachedCipher cryptoSecretboxDetached(
  1. Uint8List m,
  2. Uint8List n,
  3. Uint8List k
)

Implementation

static DetachedCipher cryptoSecretboxDetached(
    Uint8List m, Uint8List n, Uint8List k) {
  RangeError.checkValueInInterval(n.length, cryptoSecretboxNoncebytes,
      cryptoSecretboxNoncebytes, 'n', 'Invalid length');
  RangeError.checkValueInInterval(k.length, cryptoSecretboxKeybytes,
      cryptoSecretboxKeybytes, 'k', 'Invalid length');

  final _c = calloc<Uint8>(m.length);
  final _mac = calloc<Uint8>(cryptoSecretboxMacbytes);
  final _m = m.toPointer();
  final _n = n.toPointer();
  final _k = k.toPointer();

  try {
    _cryptoSecretbox
        .crypto_secretbox_detached(_c, _mac, _m, m.length, _n, _k)
        .mustSucceed('crypto_secretbox_detached');
    return DetachedCipher(
        c: _c.toList(m.length), mac: _mac.toList(cryptoSecretboxMacbytes));
  } finally {
    calloc.free(_c);
    calloc.free(_mac);
    calloc.free(_m);
    calloc.free(_n);
    calloc.free(_k);
  }
}