net.java.sip.communicator.impl.neomedia.transform.srtp
Class SRTCPTransformer

java.lang.Object
  net.java.sip.communicator.impl.neomedia.transform.srtp.SRTCPTransformer

All Implemented Interfaces:

PacketTransformer

public class SRTCPTransformer
extends Object
implements PacketTransformer

SRTCPTransformer implements PacketTransformer. It encapsulate the encryption / decryption logic for SRTCP packets

Author:

Bing SU (nova.su@gmail.com), Werner Dittmann <Werner.Dittmann@t-online.de>

Constructor Summary

SRTCPTransformer(SRTPTransformEngine engine)
Constructs a SRTCPTransformer object.

SRTCPTransformer(SRTPTransformEngine forwardEngine, SRTPTransformEngine reverseEngine)
Constructs a SRTCPTransformer object.

Method Summary

void	close() Closes this SRTCPTransformer and the underlying transform engine.
RawPacket	reverseTransform(RawPacket pkt) Decrypts a SRTCP packet
RawPacket	transform(RawPacket pkt) Encrypts a SRTCP packet

Methods inherited from class java.lang.Object

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

Constructor Detail

SRTCPTransformer

public SRTCPTransformer(SRTPTransformEngine engine)

Constructs a SRTCPTransformer object.

Parameters:

engine - The associated SRTPTransformEngine object for both transform directions.

SRTCPTransformer

public SRTCPTransformer(SRTPTransformEngine forwardEngine,
                        SRTPTransformEngine reverseEngine)

Constructs a SRTCPTransformer object.

Parameters:

forwardEngine - The associated SRTPTransformEngine object for forward transformations.

reverseEngine - The associated SRTPTransformEngine object for reverse transformations.

Method Detail

close

public void close()

Closes this SRTCPTransformer and the underlying transform engine. It closes all stored crypto contexts. It deletes key data and forces a cleanup of the crypto contexts.

Specified by:

close in interface PacketTransformer

reverseTransform

public RawPacket reverseTransform(RawPacket pkt)

Decrypts a SRTCP packet

Specified by:

reverseTransform in interface PacketTransformer

Parameters:

pkt - encrypted SRTCP packet to be decrypted

Returns:

decrypted SRTCP packet

transform

public RawPacket transform(RawPacket pkt)

Encrypts a SRTCP packet

Specified by:

transform in interface PacketTransformer

Parameters:

pkt - plain SRTCP packet to be encrypted

Returns:

encrypted SRTCP packet