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Java Standard Edition (SE)

KeyManagerFactory


compact1, compact2, compact3
javax.net.ssl

Class 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 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 to the desired algorithm name.

        Returns:
        the default algorithm name as specified by the ssl.KeyManagerFactory.algorithm security property, or an implementation-specific default if no such property exists.
        See Also:
        security properties
      • 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,
                                                          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(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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