com.entrust.toolkit.security.spec

Class CAST128MacParameterSpec

java.lang.Object

com.entrust.toolkit.security.spec.CAST128MacParameterSpec

All Implemented Interfaces:

ASN1Type, java.security.spec.AlgorithmParameterSpec

public class CAST128MacParameterSpec
extends java.lang.Object
implements java.security.spec.AlgorithmParameterSpec, ASN1Type

This class implements the CAST128Mac Parameter structure as defined in RFC 2144.

It specifies the length of the MAC, and the length of the key (both in bits).

 CAST128MacParameter ::= SEQUENCE {
     macLength    INTEGER,    -- MAC length, in bits
     keyLength    INTEGER,    -- Key length, in bits
 }
 

Since:

7.0

Constructor Summary

Constructors

Constructor and Description
CAST128MacParameterSpec() The default constructor.
CAST128MacParameterSpec(ASN1Object obj) Creates a new CAST128MacParameterSpec object from an ASN1Object.
CAST128MacParameterSpec(int macLength, int keyLength) Creates a new CAST128MacParameterSpec object with the specified components.

Method Summary

Modifier and Type	Method and Description
void	decode(ASN1Object obj) Decodes a CAST128MacParameterSpec object from an ASN1Object.
int	getKeyLength() Returns the length (size) of the key.
int	getMacLength() Returns the length (size) of the MAC.
void	setKeyLength(int keyLength) Sets the length (size) of the key.
void	setMacLength(int macLength) Sets the length (size) of the MAC.
ASN1Object	toASN1Object() Encodes this CAST128MacParameterSpec object as an ASN1Object.
java.lang.String	toString() Creates a text representation of the ASN.1 structure of this CAST128MacParameterSpec object.

Methods inherited from class java.lang.Object

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

Constructor Detail

CAST128MacParameterSpec

public CAST128MacParameterSpec()

The default constructor.

It creates a new CAST128MacParameterSpec object with a default MAC length of 64 and a default key length of 128.

CAST128MacParameterSpec

public CAST128MacParameterSpec(int macLength,
                               int keyLength)

Creates a new CAST128MacParameterSpec object with the specified components.

Parameters:

macLength - the MAC length in bits

keyLength - the key length in bits

CAST128MacParameterSpec

public CAST128MacParameterSpec(ASN1Object obj)
                        throws CodingException

Creates a new CAST128MacParameterSpec object from an ASN1Object.

The ASN1Object must be a CAST128MacParameter structure.

Parameters:

obj - the ASN.1 representation of a CAST128MacParameter structure

Throws:

CodingException - thrown if an errors occurs while decoding the ANS1Object

Method Detail

getMacLength

public int getMacLength()

Returns the length (size) of the MAC.

Returns:

the MAC length in bits

getKeyLength

public int getKeyLength()

Returns the length (size) of the key.

Returns:

the key length in bits

setMacLength

public void setMacLength(int macLength)

Sets the length (size) of the MAC.

Parameters:

macLength - the MAC length in bits

setKeyLength

public void setKeyLength(int keyLength)

Sets the length (size) of the key.

Parameters:

keyLength - the key length in bits

decode

public void decode(ASN1Object obj)
            throws CodingException

Decodes a CAST128MacParameterSpec object from an ASN1Object.

The ASN1Object must be a CAST128MacParameter structure.

Specified by:

decode in interface ASN1Type

Parameters:

obj - an ASN.1 representation of a CAST128MacParameter structure

Throws:

CodingException - thrown if an errors occurs while decoding the ANS1Object

toASN1Object

public ASN1Object toASN1Object()

Encodes this CAST128MacParameterSpec object as an ASN1Object.

Specified by:

toASN1Object in interface ASN1Type

Returns:

an ASN.1 representation of the CAST128MacParameter structure

toString

public java.lang.String toString()

Creates a text representation of the ASN.1 structure of this CAST128MacParameterSpec object.

Overrides:

toString in class java.lang.Object

Returns:

a text representation of the ASN.1 structure of this object