org.jgroups.auth
Class MD5Token

java.lang.Object
  extended by org.jgroups.auth.AuthToken
      extended by org.jgroups.auth.MD5Token
All Implemented Interfaces:
java.io.Serializable, Streamable

public class MD5Token
extends AuthToken

This is an example of using a preshared token that is encrypted using an MD5/SHA hash for authentication purposes. All members of the group have to have the same string value in the JGroups config.

Configuration parameters for this example are shown below:

Author:
Chris Mills
See Also:
AuthToken, Serialized Form

Field Summary
static java.lang.String TOKEN_ATTR
           
static java.lang.String TOKEN_TYPE
           
 
Fields inherited from class org.jgroups.auth.AuthToken
log
 
Constructor Summary
MD5Token()
           
MD5Token(java.lang.String token)
           
MD5Token(java.lang.String token, java.lang.String hash_type)
           
 
Method Summary
 boolean authenticate(AuthToken token, Message msg)
          This method should be implemented to perform the actual authentication of joining members.
 java.lang.String getName()
          Used to return the full package and class name of the implementation.
 void readFrom(java.io.DataInputStream in)
          Read the state of the current object (including superclasses) from instream Note that the input stream must not be closed
 void setValue(java.util.Properties properties)
          Called during the setup of the AUTH protocol to pass property values from the JGroups config XML document to the implementing class.
 void writeTo(java.io.DataOutputStream out)
          Write the entire state of the current object (including superclasses) to outstream.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

TOKEN_ATTR

public static final java.lang.String TOKEN_ATTR
See Also:
Constant Field Values

TOKEN_TYPE

public static final java.lang.String TOKEN_TYPE
See Also:
Constant Field Values
Constructor Detail

MD5Token

public MD5Token()

MD5Token

public MD5Token(java.lang.String token)

MD5Token

public MD5Token(java.lang.String token,
                java.lang.String hash_type)
Method Detail

setValue

public void setValue(java.util.Properties properties)
Description copied from class: AuthToken
Called during the setup of the AUTH protocol to pass property values from the JGroups config XML document to the implementing class.

Specified by:
setValue in class AuthToken
Parameters:
properties - a java.util.Properties object of config parameters

getName

public java.lang.String getName()
Description copied from class: AuthToken
Used to return the full package and class name of the implementation. This is used by the AUTH protocol to create an instance of the implementation.

Specified by:
getName in class AuthToken
Returns:
a java.lang.String object of the package and class name

authenticate

public boolean authenticate(AuthToken token,
                            Message msg)
Description copied from class: AuthToken
This method should be implemented to perform the actual authentication of joining members.

Specified by:
authenticate in class AuthToken
Parameters:
token - the token sent by the joiner
msg - the Message object containing the actual JOIN_REQ
Returns:
true if authenticaion passed or false if it failed.

writeTo

public void writeTo(java.io.DataOutputStream out)
             throws java.io.IOException
Description copied from interface: Streamable
Write the entire state of the current object (including superclasses) to outstream. Note that the output stream must not be closed

Throws:
java.io.IOException

readFrom

public void readFrom(java.io.DataInputStream in)
              throws java.io.IOException,
                     java.lang.IllegalAccessException,
                     java.lang.InstantiationException
Description copied from interface: Streamable
Read the state of the current object (including superclasses) from instream Note that the input stream must not be closed

Throws:
java.io.IOException
java.lang.IllegalAccessException
java.lang.InstantiationException


Copyright ? 1998-2006 Bela Ban. All Rights Reserved.