com.ibm.crypto.fips.provider

Class DESedeKey

java.lang.Object

com.ibm.crypto.fips.provider.DESedeKey

All Implemented Interfaces:

java.io.Serializable, java.security.Key, javax.crypto.SecretKey, javax.security.auth.Destroyable

public final class DESedeKey
extends java.lang.Object
implements javax.crypto.SecretKey

This class represents a DES-EDE key.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DESedeKey(byte[] key) Creates a DES-EDE key from a given key.
DESedeKey(byte[] key, int offset) Uses the first 24 bytes in key, beginning at offset, as the DES-EDE key

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
protected void	finalize() This function zeroizes the key so that it isn't in memory when GC is done.
java.lang.String	getAlgorithm()
byte[]	getEncoded()
java.lang.String	getFormat()
int	hashCode() Calculates a hash code value for the object.
void	zeroize() This function zeroizes the key so that it isn't in memory

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.security.auth.Destroyable

destroy, isDestroyed

Constructor Detail

DESedeKey

public DESedeKey(byte[] key)
          throws java.security.InvalidKeyException

Creates a DES-EDE key from a given key.

Parameters:

key - the given key

Throws:

java.security.InvalidKeyException - if the given key has a wrong size

DESedeKey

public DESedeKey(byte[] key,
         int offset)
          throws java.security.InvalidKeyException

Uses the first 24 bytes in key, beginning at offset, as the DES-EDE key

Parameters:

key - the buffer with the DES-EDE key

offset - the offset in key, where the DES-EDE key starts

Throws:

java.security.InvalidKeyException - if the given key has a wrong size

Method Detail

getEncoded

public byte[] getEncoded()

Specified by:

getEncoded in interface java.security.Key

getAlgorithm

public java.lang.String getAlgorithm()

Specified by:

getAlgorithm in interface java.security.Key

getFormat

public java.lang.String getFormat()

Specified by:

getFormat in interface java.security.Key

hashCode

public int hashCode()

Calculates a hash code value for the object. Objects that are equal will also have the same hashcode.

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

zeroize

public void zeroize()

This function zeroizes the key so that it isn't in memory

finalize

protected void finalize()

This function zeroizes the key so that it isn't in memory when GC is done.

Overrides:

finalize in class java.lang.Object