org.jpos.iso.filter
Class MD5Filter

java.lang.Object
  org.jpos.iso.filter.MD5Filter

All Implemented Interfaces:

Configurable, ISOFilter

public class MD5Filter
extends Object
implements ISOFilter, Configurable

Computes an MD5 based Message Authentication Code on outgoing messages and checks that MAC on incoming ones.

Since:

1.2.8

Version:

$Revision$ $Date$

Author:

Alejandro P. Revilla

See Also:

ISOFilter

Nested Class Summary

Nested classes/interfaces inherited from interface org.jpos.iso.ISOFilter

ISOFilter.VetoException

Constructor Summary

MD5Filter()

Method Summary

ISOMsg	filter(ISOChannel channel, ISOMsg m, LogEvent evt)
int[]	getFields(ISOMsg m) factory method
protected byte[]	getKey() hook for custom key storage (i.e.
void	setConfiguration(Configuration cfg)
void	setFields(int[] fields)

Methods inherited from class java.lang.Object

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

Constructor Detail

MD5Filter

public MD5Filter()

Method Detail

setConfiguration

public void setConfiguration(Configuration cfg)
                      throws ConfigurationException

Specified by:

setConfiguration in interface Configurable

Parameters:

cfg -

• key - initial key
• fields - Space separated field list

Throws:

ConfigurationException

setFields

public void setFields(int[] fields)

getFields

public int[] getFields(ISOMsg m)

factory method

Parameters:

m - current ISOMsg

Returns:

key fields associated with this ISOMsg

filter

public ISOMsg filter(ISOChannel channel,
                     ISOMsg m,
                     LogEvent evt)
              throws ISOFilter.VetoException

Specified by:

filter in interface ISOFilter

Parameters:

channel - current ISOChannel instance

m - ISOMsg to filter

evt - LogEvent

Returns:

an ISOMsg (possibly parameter m)

Throws:

ISOFilter.VetoException

getKey

protected byte[] getKey()

hook for custom key storage (i.e. crypto cards)