Package org.bouncycastle.jcajce.provider.asymmetric.dh

Class AlgorithmParametersSpi

java.lang.Object

java.security.AlgorithmParametersSpi

org.bouncycastle.jcajce.provider.asymmetric.dh.AlgorithmParametersSpi

public class AlgorithmParametersSpi
extends AlgorithmParametersSpi

Constructor Summary

Constructors

Constructor	Description
AlgorithmParametersSpi()

Method Summary

Modifier and Type	Method	Description
protected byte[]	engineGetEncoded()	Return the PKCS#3 ASN.1 structure DHParameter.
protected byte[]	engineGetEncoded(String format)	Returns the parameters in the specified encoding format.
protected AlgorithmParameterSpec	engineGetParameterSpec(Class paramSpec)	Returns the AlgorithmParameterSpec for this AlgorithmParametersSpi.
protected void	engineInit(byte[] params)	Initializes this AlgorithmParametersSpi with the specified byte[] using the default decoding format for parameters.
protected void	engineInit(byte[] params, String format)	Initializes this AlgorithmParametersSpi with the specified byte[] using the specified decoding format.
protected void	engineInit(AlgorithmParameterSpec paramSpec)	Initializes this AlgorithmParametersSpi with the specified AlgorithmParameterSpec.
protected String	engineToString()	Returns a string containing a concise, human-readable description of this AlgorithmParametersSpi.
protected boolean	isASN1FormatString(String format)
protected AlgorithmParameterSpec	localEngineGetParameterSpec(Class paramSpec)

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

isASN1FormatString

protected boolean isASN1FormatString(String format)

engineGetParameterSpec

protected AlgorithmParameterSpec engineGetParameterSpec(Class paramSpec)
                                                 throws InvalidParameterSpecException

Description copied from class: AlgorithmParametersSpi

Returns the AlgorithmParameterSpec for this AlgorithmParametersSpi.

Specified by:

engineGetParameterSpec in class 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 byte[] engineGetEncoded()

Return the PKCS#3 ASN.1 structure DHParameter.

  DHParameter ::= SEQUENCE {
                   prime INTEGER, -- p
                   base INTEGER, -- g
                   privateValueLength INTEGER OPTIONAL}
 

Specified by:

engineGetEncoded in class AlgorithmParametersSpi

Returns:

the encoded parameters.

engineGetEncoded

protected byte[] engineGetEncoded(String format)

Description copied from class: AlgorithmParametersSpi

Returns the parameters in the specified encoding format.

Specified by:

engineGetEncoded in class AlgorithmParametersSpi

Parameters:

format - the name of the encoding format.

Returns:

the encoded parameters.

localEngineGetParameterSpec

protected AlgorithmParameterSpec localEngineGetParameterSpec(Class paramSpec)
                                                      throws InvalidParameterSpecException

Throws:

InvalidParameterSpecException

engineInit

protected void engineInit(AlgorithmParameterSpec paramSpec)
                   throws InvalidParameterSpecException

Description copied from class: AlgorithmParametersSpi

Initializes this AlgorithmParametersSpi with the specified AlgorithmParameterSpec.

Specified by:

engineInit in class AlgorithmParametersSpi

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 void engineInit(byte[] params)
                   throws IOException

Description copied from class: AlgorithmParametersSpi

Initializes this AlgorithmParametersSpi with the specified byte[] using the default decoding format for parameters. The default encoding format is ASN.1.

Specified by:

engineInit in class AlgorithmParametersSpi

Parameters:

params - the encoded parameters.

Throws:

IOException - if this AlgorithmParametersSpi has already been initialized, or the parameter could not be encoded.

engineInit

protected void engineInit(byte[] params,
String format)
                   throws IOException

Description copied from class: AlgorithmParametersSpi

Initializes this AlgorithmParametersSpi with the specified byte[] using the specified decoding format.

Specified by:

engineInit in class AlgorithmParametersSpi

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.

engineToString

protected String engineToString()

Description copied from class: AlgorithmParametersSpi

Returns a string containing a concise, human-readable description of this AlgorithmParametersSpi.

Specified by:

engineToString in class AlgorithmParametersSpi

Returns:

a printable representation for this AlgorithmParametersSpi.