com.entrust.toolkit.security.crypto.ec

Class EcdsaWithSpecifiedParameters

java.lang.Object

java.security.AlgorithmParametersSpi

com.entrust.toolkit.security.crypto.ec.EcdsaWithSpecifiedParameters

public final class EcdsaWithSpecifiedParameters
extends java.security.AlgorithmParametersSpi

An opaque representation of the algorithm parameters required by Entrust's SPECIFIEDwithECDSA digital signature algorithm implementation.

For a detailed description of the values contained in a set of SPECIFIEDwithECDSA algorithm parameters, refer to the documentation on the corresponding transparent algorithm parameters representation EcdsaWithSpecifiedParameterSpec . To convert this opaque representation into a transparent representation call getParameterSpec(EcdsaWithSpecifiedParameterSpec.class). Finally, for parsing and encoding of this parameter specification, only the 'ASN.1' encoding is supported; by default the 'ASN.1' encoding is used.

Since:

8.0

See Also:

EcdsaWithSpecifiedSignature, EcdsaWithSpecifiedParameterSpec

Constructor Summary

Constructors

Constructor and Description
EcdsaWithSpecifiedParameters() The constructor; creates a new instance of SPECIFIEDwithECDSA digital signature algorithm parameters.

Method Summary

Modifier and Type	Method and Description
protected byte[]	engineGetEncoded() Returns the parameters in their primary encoding format.
protected byte[]	engineGetEncoded(java.lang.String format) Returns the parameters encoded in the specified format.
protected <T extends java.security.spec.AlgorithmParameterSpec> T	engineGetParameterSpec(java.lang.Class<T> paramSpec) Returns a (transparent) specification of this parameters object.
protected void	engineInit(java.security.spec.AlgorithmParameterSpec paramSpec) Initializes this parameters object using the parameters specified in paramSpec.
protected void	engineInit(byte[] params) Imports the specified parameters and decodes them according to the primary decoding format for parameters.
protected void	engineInit(byte[] params, java.lang.String format) Imports the parameters from params and decodes them according to the specified decoding format.
protected java.lang.String	engineToString() Returns a formatted string describing the parameters.

Methods inherited from class java.lang.Object

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

Constructor Detail

EcdsaWithSpecifiedParameters

public EcdsaWithSpecifiedParameters()

The constructor; creates a new instance of SPECIFIEDwithECDSA digital signature algorithm parameters.

This should never be invoked manually. It only exists so that the Java Cryptography Architecture can create new instances of SPECIFIEDwithECDSA digital signature algorithm parameters.

Method Detail

engineInit

protected void engineInit(java.security.spec.AlgorithmParameterSpec paramSpec)
                   throws java.security.spec.InvalidParameterSpecException

Initializes this parameters object using the parameters specified in paramSpec.

Specified by:

engineInit in class java.security.AlgorithmParametersSpi

Parameters:

paramSpec - the parameter specification.

Throws:

java.security.spec.InvalidParameterSpecException - if the given parameter specification is inappropriate for the initialization of this parameter object.

engineInit

protected void engineInit(byte[] params)
                   throws java.io.IOException

Imports the specified parameters and decodes them according to the primary decoding format for parameters.

The primary decoding format for parameters is ASN.1.

Specified by:

engineInit in class java.security.AlgorithmParametersSpi

Parameters:

params - the encoded parameters.

Throws:

java.io.IOException - on decoding errors

engineInit

protected void engineInit(byte[] params,
                          java.lang.String format)
                   throws java.io.IOException

Imports the parameters from params and decodes them according to the specified decoding format.

If format is null, the primary decoding format for parameters is used. The primary decoding format is ASN.1.

Specified by:

engineInit in class java.security.AlgorithmParametersSpi

Parameters:

params - the encoded parameters.

format - the name of the decoding format.

Throws:

java.io.IOException - on decoding errors

engineGetParameterSpec

protected <T extends java.security.spec.AlgorithmParameterSpec> T engineGetParameterSpec(java.lang.Class<T> paramSpec)
                                                                                  throws java.security.spec.InvalidParameterSpecException

Returns a (transparent) specification of this parameters object.

Specified by:

engineGetParameterSpec in class java.security.AlgorithmParametersSpi

Parameters:

paramSpec - the specification class in which the parameters should be returned.

Returns:

the parameter specification.

Throws:

java.security.spec.InvalidParameterSpecException - if the requested parameter specification is inappropriate for this parameter object.

engineGetEncoded

protected byte[] engineGetEncoded()
                           throws java.io.IOException

Returns the parameters in their primary encoding format.

The primary encoding format for parameters is ASN.1.

Specified by:

engineGetEncoded in class java.security.AlgorithmParametersSpi

Returns:

the parameters encoded using the specified encoding scheme.

Throws:

java.io.IOException - on encoding errors.

engineGetEncoded

protected byte[] engineGetEncoded(java.lang.String format)
                           throws java.io.IOException

Returns the parameters encoded in the specified format.

If format is null, the primary encoding format for parameters is used. The primary encoding format is ASN.1.

Specified by:

engineGetEncoded in class java.security.AlgorithmParametersSpi

Parameters:

format - the name of the encoding format.

Returns:

the parameters encoded using the specified encoding scheme.

Throws:

java.io.IOException - on encoding errors.

engineToString

protected java.lang.String engineToString()

Returns a formatted string describing the parameters.

Specified by:

engineToString in class java.security.AlgorithmParametersSpi

Returns:

a formatted string describing the parameters.