org.spongycastle.crypto.tls

Class AbstractTlsClient

java.lang.Object

org.spongycastle.crypto.tls.AbstractTlsPeer

org.spongycastle.crypto.tls.AbstractTlsClient

All Implemented Interfaces:

TlsClient, TlsPeer

Direct Known Subclasses:

DefaultTlsClient, PSKTlsClient, SRPTlsClient

public abstract class AbstractTlsClient
extends AbstractTlsPeer
implements TlsClient

Field Summary

Fields

Modifier and Type	Field and Description
protected TlsCipherFactory	cipherFactory
protected short[]	clientECPointFormats
protected TlsClientContext	context
protected int[]	namedCurves
protected int	selectedCipherSuite
protected short	selectedCompressionMethod
protected short[]	serverECPointFormats
protected java.util.Vector	supportedSignatureAlgorithms

Constructor Summary

Constructors

Constructor and Description
AbstractTlsClient()
AbstractTlsClient(TlsCipherFactory cipherFactory)

Method Summary

Modifier and Type	Method and Description
protected boolean	allowUnexpectedServerExtension(java.lang.Integer extensionType, byte[] extensionData)
protected void	checkForUnexpectedServerExtension(java.util.Hashtable serverExtensions, java.lang.Integer extensionType)
TlsCipher	getCipher()
java.util.Hashtable	getClientExtensions()
ProtocolVersion	getClientHelloRecordLayerVersion() Return the ProtocolVersion to use for the TLSPlaintext.version field prior to receiving the server version.
java.util.Vector	getClientSupplementalData()
ProtocolVersion	getClientVersion()
TlsCompression	getCompression()
short[]	getCompressionMethods()
ProtocolVersion	getMinimumVersion()
TlsSession	getSessionToResume() Return the session this client wants to resume, if any.
void	init(TlsClientContext context)
boolean	isFallback()
void	notifyNewSessionTicket(NewSessionTicket newSessionTicket) RFC 5077 3.3.
void	notifySelectedCipherSuite(int selectedCipherSuite)
void	notifySelectedCompressionMethod(short selectedCompressionMethod)
void	notifyServerVersion(ProtocolVersion serverVersion)
void	notifySessionID(byte[] sessionID) Notifies the client of the session_id sent in the ServerHello.
void	processServerExtensions(java.util.Hashtable serverExtensions)
void	processServerSupplementalData(java.util.Vector serverSupplementalData)

Methods inherited from class org.spongycastle.crypto.tls.AbstractTlsPeer

notifyAlertRaised, notifyAlertReceived, notifyHandshakeComplete, notifySecureRenegotiation, shouldUseGMTUnixTime

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.spongycastle.crypto.tls.TlsClient

getAuthentication, getCipherSuites, getKeyExchange

Methods inherited from interface org.spongycastle.crypto.tls.TlsPeer

notifyAlertRaised, notifyAlertReceived, notifyHandshakeComplete, notifySecureRenegotiation, shouldUseGMTUnixTime

Field Detail

cipherFactory

protected TlsCipherFactory cipherFactory

context

protected TlsClientContext context

supportedSignatureAlgorithms

protected java.util.Vector supportedSignatureAlgorithms

namedCurves

protected int[] namedCurves

clientECPointFormats

protected short[] clientECPointFormats

serverECPointFormats

protected short[] serverECPointFormats

selectedCipherSuite

protected int selectedCipherSuite

selectedCompressionMethod

protected short selectedCompressionMethod

Constructor Detail

AbstractTlsClient

public AbstractTlsClient()

AbstractTlsClient

public AbstractTlsClient(TlsCipherFactory cipherFactory)

Method Detail

allowUnexpectedServerExtension

protected boolean allowUnexpectedServerExtension(java.lang.Integer extensionType,
                                                 byte[] extensionData)
                                          throws java.io.IOException

Throws:

java.io.IOException

checkForUnexpectedServerExtension

protected void checkForUnexpectedServerExtension(java.util.Hashtable serverExtensions,
                                                 java.lang.Integer extensionType)
                                          throws java.io.IOException

Throws:

java.io.IOException

init

public void init(TlsClientContext context)

Specified by:

init in interface TlsClient

getSessionToResume

public TlsSession getSessionToResume()

Description copied from interface: TlsClient

Return the session this client wants to resume, if any. Note that the peer's certificate chain for the session (if any) may need to be periodically revalidated.

Specified by:

getSessionToResume in interface TlsClient

Returns:

A TlsSession representing the resumable session to be used for this connection, or null to use a new session.

See Also:

SessionParameters.getPeerCertificate()

getClientHelloRecordLayerVersion

public ProtocolVersion getClientHelloRecordLayerVersion()

Description copied from interface: TlsClient

Return the ProtocolVersion to use for the TLSPlaintext.version field prior to receiving the server version. NOTE: This method is not called for DTLS.

See RFC 5246 E.1.: "TLS clients that wish to negotiate with older servers MAY send any value {03,XX} as the record layer version number. Typical values would be {03,00}, the lowest version number supported by the client, and the value of ClientHello.client_version. No single value will guarantee interoperability with all old servers, but this is a complex topic beyond the scope of this document."

Specified by:

getClientHelloRecordLayerVersion in interface TlsClient

Returns:

The ProtocolVersion to use.

getClientVersion

public ProtocolVersion getClientVersion()

Specified by:

getClientVersion in interface TlsClient

isFallback

public boolean isFallback()

Specified by:

isFallback in interface TlsClient

getClientExtensions

public java.util.Hashtable getClientExtensions()
                                        throws java.io.IOException

Specified by:

getClientExtensions in interface TlsClient

Throws:

java.io.IOException

getMinimumVersion

public ProtocolVersion getMinimumVersion()

notifyServerVersion

public void notifyServerVersion(ProtocolVersion serverVersion)
                         throws java.io.IOException

Specified by:

notifyServerVersion in interface TlsClient

Throws:

java.io.IOException

getCompressionMethods

public short[] getCompressionMethods()

Specified by:

getCompressionMethods in interface TlsClient

notifySessionID

public void notifySessionID(byte[] sessionID)

Description copied from interface: TlsClient

Notifies the client of the session_id sent in the ServerHello.

Specified by:

notifySessionID in interface TlsClient

See Also:

TlsContext.getResumableSession()

notifySelectedCipherSuite

public void notifySelectedCipherSuite(int selectedCipherSuite)

Specified by:

notifySelectedCipherSuite in interface TlsClient

notifySelectedCompressionMethod

public void notifySelectedCompressionMethod(short selectedCompressionMethod)

Specified by:

notifySelectedCompressionMethod in interface TlsClient

processServerExtensions

public void processServerExtensions(java.util.Hashtable serverExtensions)
                             throws java.io.IOException

Specified by:

processServerExtensions in interface TlsClient

Throws:

java.io.IOException

processServerSupplementalData

public void processServerSupplementalData(java.util.Vector serverSupplementalData)
                                   throws java.io.IOException

Specified by:

processServerSupplementalData in interface TlsClient

Throws:

java.io.IOException

getClientSupplementalData

public java.util.Vector getClientSupplementalData()
                                           throws java.io.IOException

Specified by:

getClientSupplementalData in interface TlsClient

Throws:

java.io.IOException

getCompression

public TlsCompression getCompression()
                              throws java.io.IOException

Specified by:

getCompression in interface TlsPeer

Throws:

java.io.IOException

getCipher

public TlsCipher getCipher()
                    throws java.io.IOException

Specified by:

getCipher in interface TlsPeer

Throws:

java.io.IOException

notifyNewSessionTicket

public void notifyNewSessionTicket(NewSessionTicket newSessionTicket)
                            throws java.io.IOException

Description copied from interface: TlsClient

RFC 5077 3.3. NewSessionTicket Handshake Message

This method will be called (only) when a NewSessionTicket handshake message is received. The ticket is opaque to the client and clients MUST NOT examine the ticket under the assumption that it complies with e.g. RFC 5077 4. Recommended Ticket Construction.

Specified by:

notifyNewSessionTicket in interface TlsClient

Parameters:

newSessionTicket - The ticket.

Throws:

java.io.IOException