javax.crypto.spec
Class RC2ParameterSpec

java.lang.Object
  |
  +--javax.crypto.spec.RC2ParameterSpec

All Implemented Interfaces:

AlgorithmParameterSpec

public class RC2ParameterSpec

extends Object

implements AlgorithmParameterSpec

RC2 parameter specification.

Attention: This is not a SUN implementation!

This class has been developed by IAIK according to the documentation publically available.
For SUNīs documentation of this class see http://java.sun.com/security/JCE1.2/spec/apidoc/index.html

This class represents an initialization vector (IV), used as parameter by the RC2 algorithm.

Version:

File Revision 18

See Also:

AlgorithmParameterSpec

Constructor Summary

RC2ParameterSpec(int effectiveKeyBits)
Creates a RC2ParametersSpec from the given effectiveKeyBits value.

RC2ParameterSpec(int effectiveKeyBits, byte[] initVector)
Creates a RC2 Parameter specification by using the first 8 bytes of the supplied byte array as initialization vector (IV).

RC2ParameterSpec(int effectiveKeyBits, byte[] initVector, int offset)
Creates a RC2 Parameter specification by using 8 bytes of the supplied byte array as IV, beginning at the given offset.

Method Summary

boolean	equals(Object otherObject) This object and the other object are considered equal if the other object is an instance of this class and if their effective key sizes and IVs are equal (they are also considered equal if both are null).
int	getEffectiveKeyBits() Return the number of effective key bits.
byte[]	getIV() Returns a copy of the initialization vector (IV) as byte array representation.
int	hashCode() Calculate a hash code for this object.

Methods inherited from class java.lang.Object

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

Constructor Detail

RC2ParameterSpec

public RC2ParameterSpec(int effectiveKeyBits)

Creates a RC2ParametersSpec from the given effectiveKeyBits value.

Parameters:

effectiveKeyBits - the number of effective key bits

RC2ParameterSpec

public RC2ParameterSpec(int effectiveKeyBits,
                        byte[] initVector)

Creates a RC2 Parameter specification by using the first 8 bytes of the supplied byte array as initialization vector (IV).

Parameters:

effectiveKeyBits - the number of effective key bits

initVector - the byte array holding the IV

RC2ParameterSpec

public RC2ParameterSpec(int effectiveKeyBits,
                        byte[] initVector,
                        int offset)

Creates a RC2 Parameter specification by using 8 bytes of the supplied byte array as IV, beginning at the given offset.

Parameters:

effectiveKeyBits - the number of effective key bits

initVector - the byte array holding the IV

offset - the offset indicating the start position within the input IV byte array

Method Detail

getEffectiveKeyBits

public int getEffectiveKeyBits()

Return the number of effective key bits.

getIV

public byte[] getIV()

Returns a copy of the initialization vector (IV) as byte array representation.

Returns:

a copy of the initialization vector (IV) as byte array representation

equals

public boolean equals(Object otherObject)

This object and the other object are considered equal if the other object is an instance of this class and if their effective key sizes and IVs are equal (they are also considered equal if both are null).

Overrides:

equals in class Object

Parameters:

otherObject - The other object for comparison.

Returns:

true, if effective key sizes and IVs are equal. false, otherwise.

hashCode

public int hashCode()

Calculate a hash code for this object. Includes the effective key size and the IV if present.

Overrides:

hashCode in class Object

Returns:

A hash code for this object.