org.spongycastle.jce.spec

Class IESParameterSpec

java.lang.Object

org.spongycastle.jce.spec.IESParameterSpec

All Implemented Interfaces:

java.security.spec.AlgorithmParameterSpec

public class IESParameterSpec
extends java.lang.Object
implements java.security.spec.AlgorithmParameterSpec

Parameter spec for an integrated encryptor, as in IEEE P1363a

Constructor Summary

Constructors

Constructor and Description
IESParameterSpec(byte[] derivation, byte[] encoding, int macKeySize) Set the IES engine parameters.
IESParameterSpec(byte[] derivation, byte[] encoding, int macKeySize, int cipherKeySize, byte[] nonce) Set the IES engine parameters.
IESParameterSpec(byte[] derivation, byte[] encoding, int macKeySize, int cipherKeySize, byte[] nonce, boolean usePointCompression) Set the IES engine parameters.

Method Summary

Modifier and Type	Method and Description
int	getCipherKeySize() return the key size in bits for the block cipher used with the message
byte[]	getDerivationV() return the derivation vector.
byte[]	getEncodingV() return the encoding vector.
int	getMacKeySize() return the key size in bits for the MAC used with the message
byte[]	getNonce() Return the nonce (IV) value to be associated with message.
boolean	getPointCompression() Return the 'point compression' flag.
void	setPointCompression(boolean usePointCompression) Set the 'point compression' flag.

Methods inherited from class java.lang.Object

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

Constructor Detail

IESParameterSpec

public IESParameterSpec(byte[] derivation,
                        byte[] encoding,
                        int macKeySize)

Set the IES engine parameters.

Parameters:

derivation - the optional derivation vector for the KDF.

encoding - the optional encoding vector for the KDF.

macKeySize - the key size (in bits) for the MAC.

IESParameterSpec

public IESParameterSpec(byte[] derivation,
                        byte[] encoding,
                        int macKeySize,
                        int cipherKeySize,
                        byte[] nonce)

Set the IES engine parameters.

Parameters:

derivation - the optional derivation vector for the KDF.

encoding - the optional encoding vector for the KDF.

macKeySize - the key size (in bits) for the MAC.

cipherKeySize - the key size (in bits) for the block cipher.

nonce - an IV to use initialising the block cipher.

IESParameterSpec

public IESParameterSpec(byte[] derivation,
                        byte[] encoding,
                        int macKeySize,
                        int cipherKeySize,
                        byte[] nonce,
                        boolean usePointCompression)

Set the IES engine parameters.

Parameters:

derivation - the optional derivation vector for the KDF.

encoding - the optional encoding vector for the KDF.

macKeySize - the key size (in bits) for the MAC.

cipherKeySize - the key size (in bits) for the block cipher.

nonce - an IV to use initialising the block cipher.

usePointCompression - whether to use EC point compression or not (false by default)

Method Detail

getDerivationV

public byte[] getDerivationV()

return the derivation vector.

getEncodingV

public byte[] getEncodingV()

return the encoding vector.

getMacKeySize

public int getMacKeySize()

return the key size in bits for the MAC used with the message

getCipherKeySize

public int getCipherKeySize()

return the key size in bits for the block cipher used with the message

getNonce

public byte[] getNonce()

Return the nonce (IV) value to be associated with message.

Returns:

block cipher IV for message.

setPointCompression

public void setPointCompression(boolean usePointCompression)

Set the 'point compression' flag.

getPointCompression

public boolean getPointCompression()

Return the 'point compression' flag.

Returns:

the point compression flag