Function importGenericSecretKey

lib/internal/crypto/keys.js:1251–1290

(
  algorithm,
  format,
  keyData,
  extractable,
  keyUsages,
)

}

function importGenericSecretKey(
  algorithm,
  format,
  keyData,
  extractable,
  keyUsages,
) {
  const usagesSet = new SafeSet(keyUsages);
  const { name } = algorithm;
  if (extractable)
    throw lazyDOMException(`${name} keys are not extractable`, 'SyntaxError');

  if (hasAnyNotIn(usagesSet, ['deriveKey', 'deriveBits'])) {
    throw lazyDOMException(
      `Unsupported key usage for a ${name} key`,
      'SyntaxError');
  }

  let handle;
  switch (format) {
    case 'KeyObjectHandle': {
      handle = keyData;
      break;
    }
    case 'raw-secret':
    case 'raw': {
      handle = new KeyObjectHandle();
      handle.init(kKeyTypeSecret, keyData);
      break;
    }
    default:
      return undefined;
  }

  return new InternalCryptoKey(
    handle,
    { name },
    getUsagesMask(usagesSet),
    false);
}

module.exports = {
  // Public API.