iaik.pkcs.pkcs11.objects

Class DHParams

java.lang.Object

iaik.pkcs.pkcs11.objects.Object

iaik.pkcs.pkcs11.objects.Storage

iaik.pkcs.pkcs11.objects.DomainParameters

iaik.pkcs.pkcs11.objects.DHParams

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

X942DHParams

public class DHParams
extends DomainParameters

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

Version:

1.0

Author:

Karl Scheibelhofer

Invariants:

(prime_ != null) and (base_ != null) and (primeBits_ != 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	base_ The base (g) of this DH key.
protected ByteArrayAttribute	prime_ The prime (p) of this DH key.
protected LongAttribute	primeBits_ The length of the prime value in bits.

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
	DHParams() Default Constructor.
protected	DHParams(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).
protected static void	putAttributesInTable(DHParams 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.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

prime_

protected ByteArrayAttribute prime_

The prime (p) of this DH key.

base_

protected ByteArrayAttribute base_

The base (g) of this DH key.

primeBits_

protected LongAttribute primeBits_

The length of the prime value in bits.

Constructor Detail

DHParams

public DHParams()

Default Constructor.

DHParams

protected DHParams(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(DHParams 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 DomainParameters

clone

public java.lang.Object clone()

Create a (deep) clone of this object.

Overrides:

clone in class DomainParameters

Returns:

A clone of this object.

Postconditions:

(result != null) and (result instanceof DHParams) 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 DomainParameters

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.

Returns:

The prime attribute.

Postconditions:

(result != null)

getBase

public ByteArrayAttribute getBase()

Gets the base attribute of this DH key.

Returns:

The base attribute.

Postconditions:

(result != null)

getPrimeBits

public LongAttribute getPrimeBits()

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

Returns:

The prime 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 DomainParameters

Returns:

A string presentation of this object for debugging output.

Postconditions:

(result != null)