Module java.base
Package javax.net.ssl

Class SSLContextSpi


  • public abstract class SSLContextSpi
    extends Object
    This class defines the Service Provider Interface (SPI) for the SSLContext class.

    All the abstract methods in this class must be implemented by each cryptographic service provider who wishes to supply the implementation of a particular SSL context.

    Since:
    1.4
    See Also:
    SSLContext
    • Constructor Detail

      • SSLContextSpi

        public SSLContextSpi()
    • Method Detail

      • engineCreateSSLEngine

        protected abstract SSLEngine engineCreateSSLEngine()
        Creates a new SSLEngine using this context.

        Applications using this factory method are providing no hints for an internal session reuse strategy. If hints are desired, engineCreateSSLEngine(String, int) should be used instead.

        Some cipher suites (such as Kerberos) require remote hostname information, in which case this factory method should not be used.

        Implementation Note:
        It is provider-specific if the returned SSLEngine uses client or server mode by default for the (D)TLS connection. The JDK SunJSSE provider implementation uses server mode by default. However, it is recommended to always set the desired mode explicitly by calling SSLEngine.setUseClientMode() before invoking other methods of the SSLEngine.
        Returns:
        the SSLEngine Object
        Throws:
        IllegalStateException - if the SSLContextImpl requires initialization and the engineInit() has not been called
        Since:
        1.5
        See Also:
        SSLContext.createSSLEngine()
      • engineCreateSSLEngine

        protected abstract SSLEngine engineCreateSSLEngine​(String host,
                                                           int port)
        Creates a SSLEngine using this context.

        Applications using this factory method are providing hints for an internal session reuse strategy.

        Some cipher suites (such as Kerberos) require remote hostname information, in which case peerHost needs to be specified.

        Implementation Note:
        It is provider-specific if the returned SSLEngine uses client or server mode by default for the (D)TLS connection. The JDK SunJSSE provider implementation uses server mode by default. However, it is recommended to always set the desired mode explicitly by calling SSLEngine.setUseClientMode() before invoking other methods of the SSLEngine.
        Parameters:
        host - the non-authoritative name of the host
        port - the non-authoritative port
        Returns:
        the SSLEngine Object
        Throws:
        IllegalStateException - if the SSLContextImpl requires initialization and the engineInit() has not been called
        Since:
        1.5
        See Also:
        SSLContext.createSSLEngine(String, int)
      • engineGetDefaultSSLParameters

        protected SSLParameters engineGetDefaultSSLParameters()
        Returns a copy of the SSLParameters indicating the default settings for this SSL context.

        The parameters will always have the ciphersuite and protocols arrays set to non-null values.

        The default implementation obtains the parameters from an SSLSocket created by calling the SocketFactory.createSocket() method of this context's SocketFactory.

        Returns:
        a copy of the SSLParameters object with the default settings
        Throws:
        UnsupportedOperationException - if the default SSL parameters could not be obtained.
        Since:
        1.6
      • engineGetSupportedSSLParameters

        protected SSLParameters engineGetSupportedSSLParameters()
        Returns a copy of the SSLParameters indicating the maximum supported settings for this SSL context.

        The parameters will always have the ciphersuite and protocols arrays set to non-null values.

        The default implementation obtains the parameters from an SSLSocket created by calling the SocketFactory.createSocket() method of this context's SocketFactory.

        Returns:
        a copy of the SSLParameters object with the maximum supported settings
        Throws:
        UnsupportedOperationException - if the supported SSL parameters could not be obtained.
        Since:
        1.6

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