and add relevant policies on MinIO using `mc admin policy create myminio/ <group_name> group-access.json`

## Explore Further

- [MinIO STS Quickstart Guide](https://docs.min.io/community/minio-object-store/developers/security-token-service.html)

    Alternatively, OkHttp will also use Conscrypt if you install it as your
    preferred security provider. To do so, add the following code to execute
    before you create your `OkHttpClient`.

    ```
    Security.insertProviderAt(
        new org.conscrypt.OpenSSLProvider(), 1);
    ```

    Conscrypt is the bundled security provider on Android so it is not necessary
    to configure it on that platform.

import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.security.GeneralSecurityException;
import java.security.SecureRandom;
import java.util.Arrays;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

This is very useful when you need to:

* Have shared logic (the same code logic again and again).
* Share database connections.
* Enforce security, authentication, role requirements, etc.
* And many other things...

All these, while minimizing code repetition.

## First Steps { #first-steps }

### Безопасность и аутентификация { #security-and-authentication }

Встроенные функции безопасности и аутентификации. Без каких‑либо компромиссов с базами данных или моделями данных.

Все схемы безопасности, определённые в OpenAPI, включая:

* HTTP Basic.
* **OAuth2** (также с **токенами JWT**). Ознакомьтесь с руководством [OAuth2 с JWT](tutorial/security/oauth2-jwt.md){.internal-link target=_blank}.
* Ключи API в:

and [C++](https://www.tensorflow.org/api_docs/cc) APIs, as well as a
non-guaranteed backward compatible API for
[other languages](https://www.tensorflow.org/api_docs).

Keep up-to-date with release announcements and security updates by subscribing
to
[******@****.***](https://groups.google.com/a/tensorflow.org/forum/#!forum/announce).
See all the [mailing lists](https://www.tensorflow.org/community/forums).

## Install

import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.mockStatic;

import java.security.GeneralSecurityException;
import java.security.Security;
import java.util.Arrays;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

These examples are intentionally simple, but show how it all works.

In the chapters about security, there are utility functions that are implemented in this same way.

If you understood all this, you already know how those utility tools for security work underneath.

///

        assertEquals(0, cmd.readDataWireFormat(buf, 0, buf.length));
    }

    @ParameterizedTest
    @CsvSource({ "0, 0", // all zeros
            "-1, 2147483647", // negative fid, max positive security
            "12345, 999" // arbitrary numbers
    })
    void toString_includesCorrectHexValues(int fid, int securityInformation) {
        NtTransQuerySecurityDesc cmd = new NtTransQuerySecurityDesc(fid, securityInformation);

    /** Whether to use NT status codes instead of DOS error codes */
    protected boolean useNtStatus = true;
    /** Whether to use extended security negotiation */
    protected boolean useExtendedSecurity = true;
    /** Force use of extended security negotiation */
    protected boolean forceExtendedSecurity = false;
    /** Whether to negotiate only SMB2 or higher protocols */