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Java Source Code / Java Documentation » Byte Code » PROSE » ch.ethz.prose

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

ch.ethz.prose .LocalAspectManager

ch.ethz.prose .SecureLocalAspectManager

SecureLocalAspectManager

public class SecureLocalAspectManager extends LocalAspectManager (Code)

Class SecureLocalAspectManager extends LocalAspectManager. It recognizes SignedExtensions in insertExtension and performs the insertion under the permissions granted to the SecureLocalAspectManager class, in case that the signature is valid and the signer is trusted to insert extensions.

version:
   $Revision: 1.2 $
author:
   Marcel Mueller
author:

author:
Used Properties:
author:

author:

ch.ethz.prose.keystore.location
author:
Values: path to keystore to use

author:
Usage:

author:

ch.ethz.prose.keystore.password
author:
Values: password to keystore

author:
Usage:

author:

Constructor Summary
public	SecureLocalAspectManager(boolean isConnectedToVM, ch.ethz.jvmai.JVMAspectInterface ai)

Method Summary
public synchronized void	insert(Aspect ext) Insert the extension `ext` into the extension manager.
protected boolean	validateKey(PublicKey key) Decides whether a key is valid and trusted to insert an extension under the privileged permissions of this class. The actual implementation is very restricted: accepts if a trusted certificate exists in the keystore defined by the system properties `ch.ethz.prose.keystore.location` and `ch.ethz.prose.keystore.password`.

Constructor Detail

SecureLocalAspectManager
public SecureLocalAspectManager(boolean isConnectedToVM, ch.ethz.jvmai.JVMAspectInterface ai)(Code)
	Constructs an extension manager that inserts SignedExtensions under privileged rights

Method Detail

insert
public synchronized void insert(Aspect ext) throws AspectManagerException(Code)
	Insert the extension `ext` into the extension manager. If `ext` is of type `SignedAspect`, the signature is verified and if the key is known to be trusted to insert extensions, the insertion is performed exclusively under the rights granted to this class. If the extension fails the verification or the key is not trusted, it is attempted to install the extension in the usual way (without privileged permissions). Parameters: ext - the extension to be inserted exception: AspectManagerException - if extension cannot be installed

validateKey

protected boolean validateKey(PublicKey key)(Code)

Decides whether a key is valid and trusted to insert an extension under the privileged permissions of this class.

The actual implementation is very restricted: accepts if a trusted certificate exists in the keystore defined by the system properties ch.ethz.prose.keystore.location and ch.ethz.prose.keystore.password. (ATTENTION: THIS IS A HUGE SECURITY HOLE!!!). Feel free to build a subclass with a better implementation.

It was thought to attach certificates to signed extensions to help the target system to make its decision. As in JDK 1.2.2 the class java.security.cert.Certificate is not Serializable, this feature is unluckily not yet implemented.
Parameters:
key - the key that signed the extension true if a trusted certificate exists in the keystore

Fields inherited from ch.ethz.prose.LocalAspectManager

static int ABORT(Code)(Java Doc)
static int COMMIT(Code)(Java Doc)
protected JoinPointManager jpm(Code)(Java Doc)

Methods inherited from ch.ethz.prose.LocalAspectManager

public void abort(Object txId)(Code)(Java Doc)
public void classLoaded(Class newClass)(Code)(Java Doc)
public void commit(Object txId)(Code)(Java Doc)
protected void createJoinPointManager(boolean isConnected, JVMAspectInterface ai)(Code)(Java Doc)
public synchronized void doInsertExtension(Aspect ext) throws AspectManagerException(Code)(Java Doc)
public synchronized void doWithdrawExtension(Aspect ext)(Code)(Java Doc)
protected void finalize()(Code)(Java Doc)
public List getAllAspects()(Code)(Java Doc)
public JoinPointManager getJoinPointManager()(Code)(Java Doc)
public void insert(Aspect x, Object txId)(Code)(Java Doc)
public void insert(Aspect x)(Code)(Java Doc)
public boolean isConnectedToVM()(Code)(Java Doc)
public synchronized void startup()(Code)(Java Doc)
public synchronized void teardown()(Code)(Java Doc)
public void withdraw(Aspect x, Object txId)(Code)(Java Doc)
public void withdraw(Aspect x)(Code)(Java Doc)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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