net.i2p.router.tunnel
Class DummyValidator

java.lang.Object
  net.i2p.router.tunnel.DummyValidator

All Implemented Interfaces:

IVValidator

 class DummyValidator
extends Object
implements IVValidator

accept everything

Method Summary

static DummyValidator	getInstance()
boolean	receiveIV(byte[] ivData, int ivOffset, byte[] payload, int payloadOffset) receive the IV for the tunnel message, returning true if it is valid, or false if it has already been used (or is otherwise invalid).

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static DummyValidator getInstance()

receiveIV

public boolean receiveIV(byte[] ivData,
                         int ivOffset,
                         byte[] payload,
                         int payloadOffset)

Description copied from interface: IVValidator

receive the IV for the tunnel message, returning true if it is valid, or false if it has already been used (or is otherwise invalid). To prevent colluding attackers from successfully tagging the tunnel by switching the IV and the first block of the message, the validator should treat the XOR of the IV and the first block as the unique identifier, not the IV alone (since the tunnel is encrypted via AES/CBC). Thanks to dvorak for pointing out that tagging!

Specified by:

receiveIV in interface IVValidator