Package java.security

Class AlgorithmParametersSpi

java.lang.Object
java.security.AlgorithmParametersSpi
Direct Known Subclasses:
AlgorithmParametersSpi, AlgorithmParametersSpi, AlgorithmParametersSpi, BaseAlgorithmParameters
public abstract class AlgorithmParametersSpi
extends Object
AlgorithmParametersSpi is the Service Provider Interface (SPI) definition for AlgorithmParameters.
See Also:
AlgorithmParameters

  • Constructor Summary

    Constructors
    Constructor Description
    AlgorithmParametersSpi()  

  • Method Summary

    Modifier and Type Method Description
    protected abstract byte[] engineGetEncoded()
    Returns the parameters in their default encoding format.
    protected abstract byte[] engineGetEncoded​(String format)
    Returns the parameters in the specified encoding format.
    protected abstract <T extends AlgorithmParameterSpec>
    T    		 engineGetParameterSpec​(Class<T> paramSpec)
    Returns the AlgorithmParameterSpec for this AlgorithmParametersSpi.
    protected abstract void engineInit​(byte[] params)
    Initializes this AlgorithmParametersSpi with the specified byte[] using the default decoding format for parameters.
    protected abstract void engineInit​(byte[] params, String format)
    Initializes this AlgorithmParametersSpi with the specified byte[] using the specified decoding format.
    protected abstract void engineInit​(AlgorithmParameterSpec paramSpec)
    Initializes this AlgorithmParametersSpi with the specified AlgorithmParameterSpec.
    protected abstract String engineToString()
    Returns a string containing a concise, human-readable description of this AlgorithmParametersSpi.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • AlgorithmParametersSpi

      public AlgorithmParametersSpi()

  • Method Details

    • engineInit

      protected abstract void engineInit​(AlgorithmParameterSpec paramSpec) throws InvalidParameterSpecException
      Initializes this AlgorithmParametersSpi with the specified AlgorithmParameterSpec.
      Parameters:
      paramSpec - the parameter specification.
      Throws:
      InvalidParameterSpecException - if this AlgorithmParametersSpi has already been initialized or the given paramSpec is not appropriate for initializing this AlgorithmParametersSpi.

    • engineInit

      protected abstract void engineInit​(byte[] params) throws IOException
      Initializes this AlgorithmParametersSpi with the specified byte[] using the default decoding format for parameters. The default encoding format is ASN.1.
      Parameters:
      params - the encoded parameters.
      Throws:
      IOException - if this AlgorithmParametersSpi has already been initialized, or the parameter could not be encoded.

    • engineInit

      protected abstract void engineInit​(byte[] params, String format) throws IOException
      Initializes this AlgorithmParametersSpi with the specified byte[] using the specified decoding format.
      Parameters:
      params - the encoded parameters.
      format - the name of the decoding format.
      Throws:
      IOException - if this AlgorithmParametersSpi has already been initialized, or the parameter could not be encoded.

    • engineGetParameterSpec

      protected abstract <T extends AlgorithmParameterSpec> T engineGetParameterSpec​(Class<T> paramSpec) throws InvalidParameterSpecException
      Returns the AlgorithmParameterSpec for this AlgorithmParametersSpi.
      Parameters:
      paramSpec - the type of the parameter specification in which this parameters should be converted.
      Returns:
      the AlgorithmParameterSpec for this AlgorithmParametersSpi.
      Throws:
      InvalidParameterSpecException - if this AlgorithmParametersSpi has already been initialized, or if this parameters could not be converted to the specified class.

    • engineGetEncoded

      protected abstract byte[] engineGetEncoded() throws IOException
      Returns the parameters in their default encoding format. The default encoding format is ASN.1.
      Returns:
      the encoded parameters.
      Throws:
      IOException - if this AlgorithmParametersSpi has already been initialized, or if this parameters could not be encoded.

    • engineGetEncoded

      protected abstract byte[] engineGetEncoded​(String format) throws IOException
      Returns the parameters in the specified encoding format.
      Parameters:
      format - the name of the encoding format.
      Returns:
      the encoded parameters.
      Throws:
      IOException - if this AlgorithmParametersSpi has already been initialized, or if this parameters could not be encoded.

    • engineToString

      protected abstract String engineToString()
      Returns a string containing a concise, human-readable description of this AlgorithmParametersSpi.
      Returns:
      a printable representation for this AlgorithmParametersSpi.