java.lang.Object
- javax.net.ssl.KeyManagerFactory

```
public class KeyManagerFactory
extends Object
```
This class acts as a factory for key managers based on a source of key material. Each key manager manages a specific type of key material for use by secure sockets. The key material is based on a KeyStore and/or provider specific sources.

Since:

1.4

See Also:
KeyManager

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`KeyManagerFactory(KeyManagerFactorySpi factorySpi, Provider provider, String algorithm)` Creates a KeyManagerFactory object.

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Method Summary

Methods
Modifier and Type	Method and Description
`String`	`getAlgorithm()` Returns the algorithm name of this `KeyManagerFactory` object.
`static String`	`getDefaultAlgorithm()` Obtains the default KeyManagerFactory algorithm name.
`static KeyManagerFactory`	`getInstance(String algorithm)` Returns a `KeyManagerFactory` object that acts as a factory for key managers.
`static KeyManagerFactory`	`getInstance(String algorithm, Provider provider)` Returns a `KeyManagerFactory` object that acts as a factory for key managers.
`static KeyManagerFactory`	`getInstance(String algorithm, String provider)` Returns a `KeyManagerFactory` object that acts as a factory for key managers.
`KeyManager[]`	`getKeyManagers()` Returns one key manager for each type of key material.
`Provider`	`getProvider()` Returns the provider of this `KeyManagerFactory` object.
`void`	`init(KeyStore ks, char[] password)` Initializes this factory with a source of key material.
`void`	`init(ManagerFactoryParameters spec)` Initializes this factory with a source of provider-specific key material.

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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - KeyManagerFactory
```
protected KeyManagerFactory(KeyManagerFactorySpi factorySpi,
                 Provider provider,
                 String algorithm)
```
    Creates a KeyManagerFactory object.
    
    Parameters:
    factorySpi - the delegate
    provider - the provider
    algorithm - the algorithm
- Method Detail
  - getDefaultAlgorithm
```
public static final String getDefaultAlgorithm()
```
    Obtains the default KeyManagerFactory algorithm name.
    The default algorithm can be changed at runtime by setting the value of the "ssl.KeyManagerFactory.algorithm" security property (set in the Java security properties file or by calling Security.setProperty(java.lang.String, java.lang.String)) to the desired algorithm name.
    
    Returns:
    the default algorithm name as specified in the Java security properties, or an implementation-specific default if no such property exists.
    See Also:
    Security.setProperty(java.lang.String, java.lang.String)
  - getAlgorithm
```
public final String getAlgorithm()
```
    Returns the algorithm name of this KeyManagerFactory object.
    This is the same name that was specified in one of the getInstance calls that created this KeyManagerFactory object.
    
    Returns:
    the algorithm name of this KeyManagerFactory object.
  - getInstance
```
public static final KeyManagerFactory getInstance(String algorithm)
                                           throws NoSuchAlgorithmException
```
    Returns a KeyManagerFactory object that acts as a factory for key managers.
    This method traverses the list of registered security Providers, starting with the most preferred Provider. A new KeyManagerFactory object encapsulating the KeyManagerFactorySpi implementation from the first Provider that supports the specified algorithm is returned.
    Note that the list of registered providers may be retrieved via the Security.getProviders() method.
    
    Parameters:
    algorithm - the standard name of the requested algorithm. See the Java Secure Socket Extension Reference Guide for information about standard algorithm names.
    
    Returns:
    the new KeyManagerFactory object.
    
    Throws:
    
    NoSuchAlgorithmException - if no Provider supports a KeyManagerFactorySpi implementation for the specified algorithm.
    
    NullPointerException - if algorithm is null.
    See Also:
    Provider
  - getInstance
```
public static final KeyManagerFactory getInstance(String algorithm,
                            String provider)
                                           throws NoSuchAlgorithmException,
                                                  NoSuchProviderException
```
    Returns a KeyManagerFactory object that acts as a factory for key managers.
    A new KeyManagerFactory object encapsulating the KeyManagerFactorySpi implementation from the specified provider is returned. The specified provider must be registered in the security provider list.
    Note that the list of registered providers may be retrieved via the Security.getProviders() method.
    
    Parameters:
    algorithm - the standard name of the requested algorithm. See the Java Secure Socket Extension Reference Guide for information about standard algorithm names.
    provider - the name of the provider.
    
    Returns:
    the new KeyManagerFactory object.
    
    Throws:
    
    NoSuchAlgorithmException - if a KeyManagerFactorySpi implementation for the specified algorithm is not available from the specified provider.
    
    NoSuchProviderException - if the specified provider is not registered in the security provider list.
    
    IllegalArgumentException - if the provider name is null or empty.
    
    NullPointerException - if algorithm is null.
    See Also:
    Provider
  - getInstance
```
public static final KeyManagerFactory getInstance(String algorithm,
                            Provider provider)
                                           throws NoSuchAlgorithmException
```
    Returns a KeyManagerFactory object that acts as a factory for key managers.
    A new KeyManagerFactory object encapsulating the KeyManagerFactorySpi implementation from the specified Provider object is returned. Note that the specified Provider object does not have to be registered in the provider list.
    
    Parameters:
    algorithm - the standard name of the requested algorithm. See the Java Secure Socket Extension Reference Guide for information about standard algorithm names.
    provider - an instance of the provider.
    
    Returns:
    the new KeyManagerFactory object.
    
    Throws:
    
    NoSuchAlgorithmException - if a KeyManagerFactorySpi implementation for the specified algorithm is not available from the specified Provider object.
    
    IllegalArgumentException - if provider is null.
    
    NullPointerException - if algorithm is null.
    See Also:
    Provider
  - getProvider
```
public final Provider getProvider()
```
    Returns the provider of this KeyManagerFactory object.
    
    Returns:
    the provider of this KeyManagerFactory object
  - init
```
public final void init(KeyStore ks,
        char[] password)
                throws KeyStoreException,
                       NoSuchAlgorithmException,
                       UnrecoverableKeyException
```
    Initializes this factory with a source of key material.
    The provider typically uses a KeyStore for obtaining key material for use during secure socket negotiations. The KeyStore is generally password-protected.
    For more flexible initialization, please see init(ManagerFactoryParameters).
    
    Parameters:
    ks - the key store or null
    password - the password for recovering keys in the KeyStore
    
    Throws:
    
    KeyStoreException - if this operation fails
    
    NoSuchAlgorithmException - if the specified algorithm is not available from the specified provider.
    
    UnrecoverableKeyException - if the key cannot be recovered (e.g. the given password is wrong).
  - init
```
public final void init(ManagerFactoryParameters spec)
                throws InvalidAlgorithmParameterException
```
    Initializes this factory with a source of provider-specific key material.
    In some cases, initialization parameters other than a keystore and password may be needed by a provider. Users of that particular provider are expected to pass an implementation of the appropriate ManagerFactoryParameters as defined by the provider. The provider can then call the specified methods in the ManagerFactoryParameters implementation to obtain the needed information.
    
    Parameters:
    spec - an implementation of a provider-specific parameter specification
    
    Throws:
    
    InvalidAlgorithmParameterException - if an error is encountered
  - getKeyManagers
```
public final KeyManager[] getKeyManagers()
```
    Returns one key manager for each type of key material.
    
    Returns:
    the key managers
    
    Throws:
    
    IllegalStateException - if the KeyManagerFactory is not initialized

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Vielen Dank im Voraus.

Dokument erstellt 11/06/2005, zuletzt geändert 04/03/2020
Quelle des gedruckten Dokuments:https://www.gaudry.be/de/java-api-rf-javax/net/ssl/keymanagerfactory.html

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Referenzen

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Inhaltsverzeichnis Haut

Class KeyManagerFactory

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

KeyManagerFactory

Method Detail

getDefaultAlgorithm

getAlgorithm

getInstance

getInstance

getInstance

getProvider

init

init

getKeyManagers

Referenzen