org.jitsi.impl.neomedia.transform.sdes

Class SDesControlImpl

java.lang.Object

org.jitsi.service.neomedia.AbstractSrtpControl<SDesTransformEngine>

org.jitsi.impl.neomedia.transform.sdes.SDesControlImpl

All Implemented Interfaces:

SDesControl, SrtpControl

public class SDesControlImpl
extends AbstractSrtpControl<SDesTransformEngine>
implements SDesControl

Default implementation of SDesControl that supports the crypto suites of the original RFC4568 and the KDR parameter, but nothing else.

Author:

Ingo Bauersachs

Nested Class Summary

Nested classes/interfaces inherited from interface org.jitsi.service.neomedia.SrtpControl

SrtpControl.TransformEngine

Field Summary

Fields inherited from class org.jitsi.service.neomedia.AbstractSrtpControl

transformEngine

Fields inherited from interface org.jitsi.service.neomedia.SDesControl

SDES_CIPHER_SUITES

Fields inherited from interface org.jitsi.service.neomedia.SrtpControl

RTP_SAVP, RTP_SAVPF

Constructor Summary

Constructors

Constructor and Description
SDesControlImpl() SDESControl

Method Summary

Modifier and Type	Method and Description
protected SDesTransformEngine	createTransformEngine() Initializes a new SDesTransformEngine instance to be associated with and used by this SDesControlImpl instance.
ch.imvs.sdes4j.srtp.SrtpCryptoAttribute	getInAttribute() Gets the crypto attribute of the incoming MediaStream.
ch.imvs.sdes4j.srtp.SrtpCryptoAttribute[]	getInitiatorCryptoAttributes() Returns the crypto attributes enabled on this computer.
ch.imvs.sdes4j.srtp.SrtpCryptoAttribute	getOutAttribute() Gets the crypto attribute of the outgoing MediaStream.
boolean	getSecureCommunicationStatus() Gets the default secure/insecure communication status for the supported call sessions.
Iterable<String>	getSupportedCryptoSuites() Gets all supported cipher suites.
ch.imvs.sdes4j.srtp.SrtpCryptoAttribute	initiatorSelectAttribute(Iterable<ch.imvs.sdes4j.srtp.SrtpCryptoAttribute> peerAttributes) Select the local crypto attribute from the initial offering (@see getInitiatorCryptoAttributes()) based on the peer's first matching cipher suite.
boolean	requiresSecureSignalingTransport() Returns true, SDES always requires the secure transport of its keys.
ch.imvs.sdes4j.srtp.SrtpCryptoAttribute	responderSelectAttribute(Iterable<ch.imvs.sdes4j.srtp.SrtpCryptoAttribute> peerAttributes) Chooses a supported crypto attribute from the peer's list of supplied attributes and creates the local crypto attribute.
void	setConnector(AbstractRTPConnector connector) Sets the RTPConnector which is to use or uses this SRTP engine.
void	setEnabledCiphers(Iterable<String> ciphers) Sets the enabled SDES ciphers.
void	start(org.jitsi.utils.MediaType mediaType) Starts and enables zrtp in the stream holding this control.

Methods inherited from class org.jitsi.service.neomedia.AbstractSrtpControl

cleanup, doCleanup, getSrtpControlType, getSrtpListener, getTransformEngine, registerUser, setMasterSession, setMultistream, setSrtpListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jitsi.service.neomedia.SrtpControl

cleanup, getSrtpControlType, getSrtpListener, getTransformEngine, registerUser, setMasterSession, setMultistream, setSrtpListener

Constructor Detail

SDesControlImpl

public SDesControlImpl()

SDESControl

Method Detail

getInAttribute

public ch.imvs.sdes4j.srtp.SrtpCryptoAttribute getInAttribute()

Description copied from interface: SDesControl

Gets the crypto attribute of the incoming MediaStream.

Specified by:

getInAttribute in interface SDesControl

Returns:

the crypto attribute of the incoming MediaStream.

getInitiatorCryptoAttributes

public ch.imvs.sdes4j.srtp.SrtpCryptoAttribute[] getInitiatorCryptoAttributes()

Returns the crypto attributes enabled on this computer.

Specified by:

getInitiatorCryptoAttributes in interface SDesControl

Returns:

The crypto attributes enabled on this computer.

getOutAttribute

public ch.imvs.sdes4j.srtp.SrtpCryptoAttribute getOutAttribute()

Description copied from interface: SDesControl

Gets the crypto attribute of the outgoing MediaStream.

Specified by:

getOutAttribute in interface SDesControl

Returns:

the crypto attribute of the outgoing MediaStream.

getSecureCommunicationStatus

public boolean getSecureCommunicationStatus()

Description copied from interface: SrtpControl

Gets the default secure/insecure communication status for the supported call sessions.

Specified by:

getSecureCommunicationStatus in interface SrtpControl

Returns:

default secure communication status for the supported call sessions.

getSupportedCryptoSuites

public Iterable<String> getSupportedCryptoSuites()

Description copied from interface: SDesControl

Gets all supported cipher suites.

Specified by:

getSupportedCryptoSuites in interface SDesControl

Returns:

all supported cipher suites.

createTransformEngine

protected SDesTransformEngine createTransformEngine()

Initializes a new SDesTransformEngine instance to be associated with and used by this SDesControlImpl instance.

Specified by:

createTransformEngine in class AbstractSrtpControl<SDesTransformEngine>

Returns:

a new SDesTransformEngine instance to be associated with and used by this SDesControlImpl instance

See Also:

AbstractSrtpControl.createTransformEngine()

initiatorSelectAttribute

public ch.imvs.sdes4j.srtp.SrtpCryptoAttribute initiatorSelectAttribute(Iterable<ch.imvs.sdes4j.srtp.SrtpCryptoAttribute> peerAttributes)

Select the local crypto attribute from the initial offering (@see getInitiatorCryptoAttributes()) based on the peer's first matching cipher suite.

Specified by:

initiatorSelectAttribute in interface SDesControl

Parameters:

peerAttributes - The peer's crypto offers.

Returns:

A SrtpCryptoAttribute when a matching cipher suite was found; null, otherwise.

requiresSecureSignalingTransport

public boolean requiresSecureSignalingTransport()

Returns true, SDES always requires the secure transport of its keys.

Specified by:

requiresSecureSignalingTransport in interface SrtpControl

Returns:

true

responderSelectAttribute

public ch.imvs.sdes4j.srtp.SrtpCryptoAttribute responderSelectAttribute(Iterable<ch.imvs.sdes4j.srtp.SrtpCryptoAttribute> peerAttributes)

Chooses a supported crypto attribute from the peer's list of supplied attributes and creates the local crypto attribute. Used when the control is running in the role as responder.

Specified by:

responderSelectAttribute in interface SDesControl

Parameters:

peerAttributes - The peer's crypto attribute offering.

Returns:

The local crypto attribute for the answer of the offer or null if no matching cipher suite could be found.

setConnector

public void setConnector(AbstractRTPConnector connector)

Sets the RTPConnector which is to use or uses this SRTP engine. The implementation of SDesControlImpl does nothing because SDesControlImpl does not utilize the RTPConnector.

Specified by:

setConnector in interface SrtpControl

Parameters:

connector - the RTPConnector which is to use or uses this SRTP engine

setEnabledCiphers

public void setEnabledCiphers(Iterable<String> ciphers)

Description copied from interface: SDesControl

Sets the enabled SDES ciphers.

Specified by:

setEnabledCiphers in interface SDesControl

Parameters:

ciphers - The list of enabled ciphers.

start

public void start(org.jitsi.utils.MediaType mediaType)

Description copied from interface: SrtpControl

Starts and enables zrtp in the stream holding this control.

Specified by:

start in interface SrtpControl

Parameters:

mediaType - the media type of the stream this control controls.