Package net.i2p.router.tunnel

Class HashSetIVValidator

java.lang.Object

net.i2p.router.tunnel.HashSetIVValidator

All Implemented Interfaces:

IVValidator

@Deprecated
class HashSetIVValidator
extends Object
implements IVValidator

Deprecated.

unused

waste lots of RAM

Constructor Summary

Constructors

Constructor	Description
HashSetIVValidator()	Deprecated.

Method Summary

Modifier and Type	Method	Description
boolean	receiveIV(byte[] ivData, int ivOffset, byte[] payload, int payloadOffset)	Deprecated. 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

Constructor Detail

HashSetIVValidator

public HashSetIVValidator()

Deprecated.

Method Detail

receiveIV

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

Deprecated.

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

Parameters:

ivData - data will not be modified

payload - will not be modified