compact1, compact2, compact3
javax.security.auth.x500

## Class X500PrivateCredential

- java.lang.Object
- - javax.security.auth.x500.X500PrivateCredential

- All Implemented Interfaces:
    Destroyable

      public final class X500PrivateCredential
      extends Object
      implements Destroyable

  This class represents an `X500PrivateCredential`. It associates an X.509 certificate, corresponding private key and the KeyStore alias used to reference that exact key pair in the KeyStore. This enables looking up the private credentials for an X.500 principal in a subject.

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `X500PrivateCredential(X509Certificate cert, PrivateKey key)` | Creates an X500PrivateCredential that associates an X.509 certificate, a private key and the KeyStore alias.
    `X500PrivateCredential(X509Certificate cert, PrivateKey key, String alias)` | Creates an X500PrivateCredential that associates an X.509 certificate, a private key and the KeyStore alias.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `destroy()` | Clears the references to the X.509 certificate, private key and the KeyStore alias in this object.
    `String` | `getAlias()` | Returns the KeyStore alias.
    `X509Certificate` | `getCertificate()` | Returns the X.509 certificate.
    `PrivateKey` | `getPrivateKey()` | Returns the PrivateKey.
    `boolean` | `isDestroyed()` | Determines if the references to the X.509 certificate and private key in this object have been cleared.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### X500PrivateCredential

          public X500PrivateCredential(X509Certificate cert,
                                       PrivateKey key)

      Creates an X500PrivateCredential that associates an X.509 certificate, a private key and the KeyStore alias.

      Parameters:
        `cert` - X509Certificate
        `key` - PrivateKey for the certificate
      Throws:
        `IllegalArgumentException` - if either `cert` or `key` is null

    - #### X500PrivateCredential

          public X500PrivateCredential(X509Certificate cert,
                                       PrivateKey key,
                                       String alias)

      Creates an X500PrivateCredential that associates an X.509 certificate, a private key and the KeyStore alias.

      Parameters:
        `cert` - X509Certificate
        `key` - PrivateKey for the certificate
        `alias` - KeyStore alias
      Throws:
        `IllegalArgumentException` - if either `cert`, `key` or `alias` is null

  - ### Method Detail

    - #### getCertificate

          public X509Certificate getCertificate()

      Returns the X.509 certificate.

      Returns:
        the X509Certificate

    - #### getPrivateKey

          public PrivateKey getPrivateKey()

      Returns the PrivateKey.

      Returns:
        the PrivateKey

    - #### getAlias

          public String getAlias()

      Returns the KeyStore alias.

      Returns:
        the KeyStore alias

    - #### destroy

          public void destroy()

      Clears the references to the X.509 certificate, private key and the KeyStore alias in this object.
      Specified by:
        `destroy` in interface `Destroyable`

    - #### isDestroyed

          public boolean isDestroyed()

      Determines if the references to the X.509 certificate and private key in this object have been cleared.

      Specified by:
        `isDestroyed` in interface `Destroyable`
      Returns:
        true if X509Certificate and the PrivateKey are null

Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2026, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.