///

{* ../../docs_src/security/tutorial005_an_py310.py hl[5,141,172] *}

/// info | Технические детали

`Security` на самом деле является подклассом `Depends` и имеет всего один дополнительный параметр, который мы рассмотрим позже.

Но используя `Security` вместо `Depends`, **FastAPI** будет знать, что можно объявлять security scopes, использовать их внутри и документировать API в OpenAPI.

        byte[] testGuid = new byte[16];
        for (int i = 0; i < 16; i++) {
            testGuid[i] = (byte) (i + 1);
        }
        System.arraycopy(testGuid, 0, buffer, bufferIndex + 4, 16);

        // Set security mode (2 bytes)
        int testSecurityMode = 0x0003;
        SMBUtil.writeInt2(testSecurityMode, buffer, bufferIndex + 20);

        // Set dialect (2 bytes)
        int testDialect = 0x0311;

# Gelişmiş Güvenlik

## Ek Özellikler

[Tutorial - User Guide: Security](../../tutorial/security/index.md){.internal-link target=_blank} sayfasında ele alınanların dışında güvenlikle ilgili bazı ek özellikler vardır.

/// tip | İpucu

Sonraki bölümler **mutlaka "gelişmiş" olmak zorunda değildir**.

Kullanım şeklinize bağlı olarak, çözümünüz bu bölümlerden birinde olabilir.

///

## Önce Öğreticiyi Okuyun

from base64 import b64encode
from typing import Optional

from fastapi import FastAPI, Security
from fastapi.security import HTTPBasic, HTTPBasicCredentials
from fastapi.testclient import TestClient

app = FastAPI()

security = HTTPBasic(auto_error=False)


@app.get("/users/me")
def read_current_user(credentials: Optional[HTTPBasicCredentials] = Security(security)):
    if credentials is None:
        return {"msg": "Create an account first"}

# Advanced Security { #advanced-security }

## Additional Features { #additional-features }

There are some extra features to handle security apart from the ones covered in the [Tutorial - User Guide: Security](../../tutorial/security/index.md){.internal-link target=_blank}.

/// tip

The next sections are **not necessarily "advanced"**.

And it's possible that for your use case, the solution is in one of them.

///

        byte[] buffer = createBasicNegotiateResponseBuffer();

        // Add a small security buffer at a safe offset (after the fixed structure)
        SMBUtil.writeInt2(64, buffer, 56); // Security buffer offset (relative to header start)
        SMBUtil.writeInt2(8, buffer, 58); // Security buffer length

        // Add some dummy security data at offset 64 from start
        buffer[64] = (byte) 0x4E; // NTLMSSP signature start

     */
    String getNetbiosName();

    /**
     * Disposes of the security context and releases any associated resources.
     * @throws CIFSException if an error occurs during disposal
     */
    void dispose() throws CIFSException;

    /**
     * Checks whether the specified security mechanism is supported.
     * @param mechanism the security mechanism OID to check
     * @return whether the specified mechanism is supported

 * limitations under the License.
 */
package okhttp3.tls.internal.der

import java.math.BigInteger
import java.security.GeneralSecurityException
import java.security.PublicKey
import java.security.Signature
import java.security.SignatureException
import java.security.cert.CertificateFactory
import java.security.cert.X509Certificate
import okio.Buffer
import okio.ByteString
import org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement

import secrets

from fastapi import Depends, FastAPI, HTTPException, status
from fastapi.security import HTTPBasic, HTTPBasicCredentials

app = FastAPI()

security = HTTPBasic()


def get_current_username(credentials: HTTPBasicCredentials = Depends(security)):
    current_username_bytes = credentials.username.encode("utf8")
    correct_username_bytes = b"stanleyjobson"
    is_correct_username = secrets.compare_digest(

    }

    @Test
    void testGetSecurityWithValidSecurityDescriptor() throws Exception {
        // Setup mock ShareInfo502 with a minimal valid security descriptor
        srvsvc.ShareInfo502 info502 = new srvsvc.ShareInfo502();
        // Create a minimal valid security descriptor binary
        // Format: revision(1) + sbz1(1) + control(2) + ownerOffset(4) + groupOffset(4) + saclOffset(4) + daclOffset(4) = 20 bytes minimum