#### **专业**攻击 { #a-professional-attack }

当然，攻击者不用手动操作，而是编写每秒能执行成千上万次测试的攻击程序，每次都会找到更多正确字符。

但是，在您的应用的**帮助**下，攻击者利用时间差，就能在几分钟或几小时内，以这种方式猜出正确的用户名和密码。

#### 使用 `secrets.compare_digest()` 修补 { #fix-it-with-secrets-compare-digest }

在此，代码中使用了 `secrets.compare_digest()`。

简单的说，它使用相同的时间对比 `stanleyjobsox` 和 `stanleyjobson`，还有 `johndoe` 和 `stanleyjobson`。对比密码时也一样。

在代码中使用 `secrets.compare_digest()` ，就可以安全地防御这整类安全攻击。

        // Test file directly in base directory
        File baseDir = new File(tempDir.toFile(), "images");
        baseDir.mkdirs();
        File directFile = new File(baseDir, "direct.png");

        Boolean result = invokeIsValidUploadPath(directFile, baseDir);
        assertTrue("File directly in base directory should be allowed", result);
    }

    @Test

---

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- **Documentation**: The [Gradle User Manual](https://docs.gradle.org/current/userguide/userguide.html) covers everything from basic to advanced configurations.

            public String getIndexFieldCreated() {
                return "created";
            }

            @Override
            public String getIndexFieldDigest() {
                return "digest";
            }

            @Override
            public String getIndexFieldUrl() {
                return "url";
            }

            @Override

  * Una cookie.
* `http`: sistemas de autenticación HTTP estándar, incluyendo:
  * `bearer`: un header `Authorization` con un valor de `Bearer ` más un token. Esto se hereda de OAuth2.
  * Autenticación básica HTTP.
  * Digest HTTP, etc.
* `oauth2`: todas las formas de OAuth2 para manejar la seguridad (llamadas "flujos").

    License. For legal entities, "You" includes any entity that
    controls, is controlled by, or is under common control with You. For
    purposes of this definition, "control" means (a) the power, direct
    or indirect, to cause the direction or management of such entity,
    whether by contract or otherwise, or (b) ownership of more than
    fifty percent (50%) of the outstanding shares or beneficial

    * Bir cookie.
* `http`: standart HTTP authentication sistemleri, örneğin:
    * `bearer`: `Authorization` header’ı; değeri `Bearer ` + bir token olacak şekilde. Bu, OAuth2’den gelir.
    * HTTP Basic authentication.
    * HTTP Digest, vb.
* `oauth2`: OAuth2 ile security’yi yönetmenin tüm yolları ("flow" olarak adlandırılır).
    * Bu flow’ların birçoğu, bir OAuth 2.0 authentication provider (Google, Facebook, X (Twitter), GitHub vb.) oluşturmak için uygundur:

        
        return baos.toByteArray();
    }
    
    private byte[] calculateBindingHash(byte[] bindingInfo) throws IOException {
        try {
            MessageDigest digest = MessageDigest.getInstance("SHA-256");
            return digest.digest(bindingInfo);
        } catch (NoSuchAlgorithmException e) {
            throw new IOException("SHA-256 not available", e);
        }
    }
    

 *
 * @author mbechler
 *
 *
 * <p>This interface is intended for internal use.</p>
 */
public interface SmbConstants {

    /**
     * Default SMB port number for direct TCP transport.
     */
    int DEFAULT_PORT = 445;

    /**
     * Default maximum number of outstanding SMB requests.
     */
    int DEFAULT_MAX_MPX_COUNT = 10;
    /**

                methodCache.put(methodKey, cacheEntry);
            }
        }

        // Yes, this might just be null.
        return (Method) cacheEntry;
    }

    /**
     * Populate the Map of direct hits. These
     * are taken from all the public methods
     * that our class provides.
     */
    private void populateMethodCache() {
        // get all publicly accessible methods