class AesSivKeyManager extends KeyTypeManager<AesSivKey> {

  @Override
  public void validateKey(AesSivKey key) throws GeneralSecurityException {
    Validators.validateVersion(key.getVersion(), getVersion());
    if (key.getKeyValue().size() != 64) {
      throw new InvalidKeyException(
          "invalid key size: " + key.getKeyValue().size() + ". Valid keys must have 64 bytes.");
    }
  }

    AesSivKeyManager();

}