iaik.pkcs.pkcs11.parameters

Class EcDH1KeyDerivationParameters

java.lang.Object

iaik.pkcs.pkcs11.parameters.DHKeyDerivationParameters

iaik.pkcs.pkcs11.parameters.EcDH1KeyDerivationParameters

All Implemented Interfaces:

Parameters, java.lang.Cloneable

Direct Known Subclasses:

EcDH2KeyDerivationParameters

public class EcDH1KeyDerivationParameters
extends DHKeyDerivationParameters

This abstract class encapsulates parameters for the DH mechanisms Mechanism.ECDH1_DERIVE and Mechanism.ECDH1_COFACTOR_DERIVE.

Version:

1.0

Author:

Karl Scheibelhofer

Nested Class Summary

Nested classes/interfaces inherited from class iaik.pkcs.pkcs11.parameters.DHKeyDerivationParameters

DHKeyDerivationParameters.KeyDerivationFunctionType

Field Summary

Fields

Modifier and Type	Field and Description
protected byte[]	sharedData_ The data shared between the two parties.

Fields inherited from class iaik.pkcs.pkcs11.parameters.DHKeyDerivationParameters

keyDerivationFunction_, publicData_

Constructor Summary

Constructors

Constructor and Description
EcDH1KeyDerivationParameters(long keyDerivationFunction, byte[] sharedData, byte[] publicData) Create a new EcDH1KeyDerivationParameters object with the given attributes.

Method Summary

Modifier and Type	Method and Description
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.
java.lang.Object	getPKCS11ParamsObject() Get this parameters object as an object of the CK_ECDH1_DERIVE_PARAMS class.
byte[]	getSharedData() Get the data shared between the two parties.
int	hashCode() The overriding of this method should ensure that the objects of this class work correctly in a hashtable.
void	setSharedData(byte[] sharedData) Set the data shared between the two parties.
java.lang.String	toString() Returns the string representation of this object.

Methods inherited from class iaik.pkcs.pkcs11.parameters.DHKeyDerivationParameters

getKeyDerivationFunction, getPublicData, setKeyDerivationFunction, setPublicData

Methods inherited from class java.lang.Object

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

Field Detail

sharedData_

protected byte[] sharedData_

The data shared between the two parties.

Constructor Detail

EcDH1KeyDerivationParameters

public EcDH1KeyDerivationParameters(long keyDerivationFunction,
                                    byte[] sharedData,
                                    byte[] publicData)

Create a new EcDH1KeyDerivationParameters object with the given attributes.

Parameters:

keyDerivationFunction - The key derivation function used on the shared secret value. One of the values defined in KeyDerivationFunctionType.

sharedData - The data shared between the two parties.

publicData - The other partie's public key value.

Preconditions:

((keyDerivationFunction == KeyDerivationFunctionType.NULL) or (keyDerivationFunction == KeyDerivationFunctionType.SHA1_KDF) or (keyDerivationFunction == KeyDerivationFunctionType.SHA224_KDF) or (keyDerivationFunction == KeyDerivationFunctionType.SHA256_KDF) or (keyDerivationFunction == KeyDerivationFunctionType.SHA384_KDF) or (keyDerivationFunction == KeyDerivationFunctionType.SHA512_KDF) or (keyDerivationFunction == KeyDerivationFunctionType.SHA1_KDF_ASN1) or (keyDerivationFunction == KeyDerivationFunctionType.SHA1_KDF_CONCATENATE)) and (publicData != null)

Method Detail

clone

public java.lang.Object clone()

Create a (deep) clone of this object.

Overrides:

clone in class DHKeyDerivationParameters

Returns:

A clone of this object.

Postconditions:

(result != null) and (result instanceof EcDH1KeyDerivationParameters) and (result.equals(this))

getPKCS11ParamsObject

public java.lang.Object getPKCS11ParamsObject()

Get this parameters object as an object of the CK_ECDH1_DERIVE_PARAMS class.

Returns:

This object as a CK_ECDH1_DERIVE_PARAMS object.

Postconditions:

(result != null)

getSharedData

public byte[] getSharedData()

Get the data shared between the two parties.

Returns:

The data shared between the two parties.

setSharedData

public void setSharedData(byte[] sharedData)

Set the data shared between the two parties.

Parameters:

sharedData - The data shared between the two parties.

Preconditions:

(sharedData != null)

toString

public java.lang.String toString()

Returns the string representation of this object. Do not parse data from this string, it is for debugging only.

Overrides:

toString in class DHKeyDerivationParameters

Returns:

A string representation of this object.

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 DHKeyDerivationParameters

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.

hashCode

public int hashCode()

The overriding of this method should ensure that the objects of this class work correctly in a hashtable.

Overrides:

hashCode in class DHKeyDerivationParameters

Returns:

The hash code of this object.