ajanta.agent
Class TargetedState

java.lang.Object
  |
  +--ajanta.agent.TargetedState

public class TargetedState

extends java.lang.Object

In some applications, an agent programmer needs to protect items in the agent's state such that they are only accessible to certain servers . Items are targeted towards particular servers, and need to be selectively revealed to those servers alone. To facilitate this, we provide a TargetedState object in Ajanta's generic agent.

See Also:

ReadOnlyContainer, AppendOnlyContainer

Field Summary

java.util.Vector	objs
java.util.Vector	servers

Constructor Summary

TargetedState(java.util.Vector objs, java.util.Vector servers, java.security.interfaces.DSAPrivateKey key)

Method Summary

boolean

verify(java.security.interfaces.DSAPublicKey key) It is called to ensure that the encrypted objects and their intended targets have not been tampered with.

Methods inherited from class java.lang.Object

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

Field Detail

objs

public java.util.Vector objs

servers

public java.util.Vector servers

Constructor Detail

TargetedState

public TargetedState(java.util.Vector objs,
                     java.util.Vector servers,
                     java.security.interfaces.DSAPrivateKey key)
              throws java.security.NoSuchAlgorithmException,
                     java.security.InvalidKeyException,
                     java.security.SignatureException,
                     java.io.IOException

Parameters:

objs - vector of objects encrypted using the public key of the server for which it is targeted.

servers - vector of server identities corresponding to each entry in objs

key - owner's DSA private key

Method Detail

verify

public boolean verify(java.security.interfaces.DSAPublicKey key)
               throws java.security.NoSuchAlgorithmException,
                      java.security.InvalidKeyException,
                      java.security.SignatureException,
                      java.io.IOException

It is called to ensure that the encrypted objects and their intended targets have not been tampered with.

Parameters:

key - agent's public key

Returns:

true if the not tempered, false otherwise.

java.security.NoSuchAlgorithmException

java.security.InvalidKeyException

java.security.SignatureException

java.io.IOException