iaik.pkcs.pkcs11.objects

Class X942DHParams

java.lang.Object

iaik.pkcs.pkcs11.objects.Object

iaik.pkcs.pkcs11.objects.Storage

iaik.pkcs.pkcs11.objects.DomainParameters

iaik.pkcs.pkcs11.objects.DHParams

iaik.pkcs.pkcs11.objects.X942DHParams

All Implemented Interfaces:

java.lang.Cloneable

public class X942DHParams
extends DHParams

Objects of this class represent X9.42 DH domain parameters as specified by PKCS#11 v2.11.

Version:

1.0

Author:

Karl Scheibelhofer

Invariants:

(prime_ != null) and (base_ != null) and (subprime_ != null) and (primeBits_ != null) and (subprimeBits_ != null)

Nested Class Summary

Nested classes/interfaces inherited from class iaik.pkcs.pkcs11.objects.DomainParameters

DomainParameters.VendorDefinedDomainParametersBuilder

Nested classes/interfaces inherited from class iaik.pkcs.pkcs11.objects.Object

Object.ObjectClass, Object.VendorDefinedObjectBuilder

Field Summary

Fields

Modifier and Type	Field and Description
protected ByteArrayAttribute	subprime_ The subprime (q) of this DH key.
protected LongAttribute	subprimeBits_ The length of the subprime value in bits.

Fields inherited from class iaik.pkcs.pkcs11.objects.DHParams

base_, prime_, primeBits_

Fields inherited from class iaik.pkcs.pkcs11.objects.DomainParameters

keyType_, local_, vendorDomainParametersBuilder_

Fields inherited from class iaik.pkcs.pkcs11.objects.Storage

label_, modifiable_, private_, token_

Fields inherited from class iaik.pkcs.pkcs11.objects.Object

attributeTable_, objectClass_, objectClassNames_, objectHandle_, vendorObjectBuilder_

Constructor Summary

Constructors

Modifier	Constructor and Description
	X942DHParams() Default Constructor.
protected	X942DHParams(Session session, long objectHandle) Called by getInstance to create an instance of a PKCS#11 DH private key.

Method Summary

Modifier and Type	Method and Description
protected void	allocateAttributes() Allocates the attribute objects for this class and adds them to the attribute table.
java.lang.Object	clone() Create a (deep) clone of this object.
boolean	equals(java.lang.Object otherObject) Compares all member variables of this object with the other object.
ByteArrayAttribute	getBase() Gets the base attribute of this DH key.
static Object	getInstance(Session session, long objectHandle) The getInstance method of the PrivateKey class uses this method to create an instance of a PKCS#11 DH private key.
ByteArrayAttribute	getPrime() Gets the prime attribute of this DH key.
LongAttribute	getPrimeBits() Gets the value length of the prime (in bits).
ByteArrayAttribute	getSubprime() Gets the subprime attribute of this DH key.
LongAttribute	getSubprimeBits() Gets the value length of the subprime (in bits).
protected static void	putAttributesInTable(X942DHParams object) Put all attributes of the given object into the attributes table of this object.
java.lang.String	toString() This method returns a string representation of the current object.

Methods inherited from class iaik.pkcs.pkcs11.objects.DHParams

putAttributesInTable

Methods inherited from class iaik.pkcs.pkcs11.objects.DomainParameters

getKeyType, getUnknownDomainParameters, getVendorDefinedDomainParametersBuilder, hashCode, isLocal, putAttributesInTable, setVendorDefinedDomainParametersBuilder

Methods inherited from class iaik.pkcs.pkcs11.objects.Storage

getLabel, getModifiable, getPrivate, getToken, putAttributesInTable

Methods inherited from class iaik.pkcs.pkcs11.objects.Object

checkAttributesState, checkAttributeState, getAttribute, getAttributeTable, getAttributeValue, getAttributeValues, getObjectClass, getObjectClassName, getObjectHandle, getSetAttributes, getSetAttributes, getUnknownObject, getVendorDefinedObjectBuilder, putAttribute, putAttributesInTable, readAttributes, removeAttribute, setObjectHandle, setVendorDefinedObjectBuilder, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

subprime_

protected ByteArrayAttribute subprime_

The subprime (q) of this DH key.

subprimeBits_

protected LongAttribute subprimeBits_

The length of the subprime value in bits.

Constructor Detail

X942DHParams

public X942DHParams()

Default Constructor.

X942DHParams

protected X942DHParams(Session session,
                       long objectHandle)
                throws TokenException

Called by getInstance to create an instance of a PKCS#11 DH private key.

Parameters:

session - The session to use for reading attributes. This session must have the appropriate rights; i.e. it must be a user-session, if it is a private object.

objectHandle - The object handle as given from the PKCS#111 module.

Throws:

TokenException - If getting the attributes failed.

Preconditions:

(session != null)

Method Detail

getInstance

public static Object getInstance(Session session,
                                 long objectHandle)
                          throws TokenException

The getInstance method of the PrivateKey class uses this method to create an instance of a PKCS#11 DH private key.

Parameters:

session - The session to use for reading attributes. This session must have the appropriate rights; i.e. it must be a user-session, if it is a private object.

objectHandle - The object handle as given from the PKCS#111 module.

Returns:

The object representing the PKCS#11 object. The returned object can be casted to the according sub-class.

Throws:

TokenException - If getting the attributes failed.

Postconditions:

(result != null)

Preconditions:

(session != null)

putAttributesInTable

protected static void putAttributesInTable(X942DHParams object)

Put all attributes of the given object into the attributes table of this object. This method is only static to be able to access invoke the implementation of this method for each class separately (see use in clone()).

Parameters:

object - The object to handle.

Preconditions:

(object != null)

allocateAttributes

protected void allocateAttributes()

Allocates the attribute objects for this class and adds them to the attribute table.

Overrides:

allocateAttributes in class DHParams

clone

public java.lang.Object clone()

Create a (deep) clone of this object.

Overrides:

clone in class DHParams

Returns:

A clone of this object.

Postconditions:

(result != null) and (result instanceof X942DHParams) and (result.equals(this))

equals

public boolean equals(java.lang.Object otherObject)

Compares all member variables of this object with the other object. Returns only true, if all are equal in both objects.

Overrides:

equals in class DHParams

Parameters:

otherObject - The other object to compare to.

Returns:

True, if other is an instance of this class and all member variables of both objects are equal. False, otherwise.

getPrime

public ByteArrayAttribute getPrime()

Gets the prime attribute of this DH key.

Overrides:

getPrime in class DHParams

Returns:

The prime attribute.

Postconditions:

(result != null)

getBase

public ByteArrayAttribute getBase()

Gets the base attribute of this DH key.

Overrides:

getBase in class DHParams

Returns:

The base attribute.

Postconditions:

(result != null)

getSubprime

public ByteArrayAttribute getSubprime()

Gets the subprime attribute of this DH key.

Returns:

The subprime attribute.

Postconditions:

(result != null)

getPrimeBits

public LongAttribute getPrimeBits()

Gets the value length of the prime (in bits).

Overrides:

getPrimeBits in class DHParams

Returns:

The prime bits attribute.

Postconditions:

(result != null)

getSubprimeBits

public LongAttribute getSubprimeBits()

Gets the value length of the subprime (in bits).

Returns:

The subprime bits attribute.

Postconditions:

(result != null)

toString

public java.lang.String toString()

This method returns a string representation of the current object. The output is only for debugging purposes and should not be used for other purposes.

Overrides:

toString in class DHParams

Returns:

A string presentation of this object for debugging output.

Postconditions:

(result != null)