Class DHGClient

java.lang.Object

org.apache.sshd.common.util.logging.AbstractLoggingBean

org.apache.sshd.common.kex.dh.AbstractDHKeyExchange

org.apache.sshd.client.kex.AbstractDHClientKeyExchange

org.apache.sshd.client.kex.DHGClient

All Implemented Interfaces:

ClientSessionHolder, KeyExchange, NamedResource, SessionContextHolder, SessionHolder<Session>

public class DHGClient
extends AbstractDHClientKeyExchange

Base class for DHG key exchange algorithms. Implementations will only have to configure the required data on the DHG class in the getDH() method.

Field Summary

Fields

Modifier and Type	Field	Description
protected AbstractDH	dh
protected final DHFactory	factory
private KeyEncapsulationMethod.Client	kemClient

Fields inherited from class AbstractDHKeyExchange

h, hash, i_c, i_s, k, v_c, v_s

Fields inherited from class AbstractLoggingBean

log

Fields inherited from interface KeyExchange

GROUP_KEX_OPCODES_MAP, SIMPLE_KEX_OPCODES_MAP

Fields inherited from interface NamedResource

BY_NAME_COMPARATOR, NAME_EXTRACTOR

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DHGClient(DHFactory factory, Session session)

Method Summary

Modifier and Type	Method	Description
protected AbstractDH	getDH()
final String	getName()
void	init(byte[] v_s, byte[] v_c, byte[] i_s, byte[] i_c)	Initialize the key exchange algorithm.
static KeyExchangeFactory	newFactory(DHFactory delegate)
boolean	next(int cmd, Buffer buffer)	Process the next packet
protected void	verifyCertificate(Session session, OpenSshCertificate openSshKey)

Methods inherited from class AbstractDHClientKeyExchange

getClientSession

Methods inherited from class AbstractDHKeyExchange

getE, getEValue, getF, getFValue, getH, getHash, getK, getSession, normalize, setE, setF, toString, updateE, updateE, updateF, updateF, validateEValue, validateFValue

Methods inherited from class AbstractLoggingBean

debug, debug, debug, debug, debug, error, error, error, error, error, getSimplifiedLogger, info, info, warn, warn, warn, warn, warn, warn, warn, warn

Methods inherited from class Object

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

Methods inherited from interface SessionHolder

getSessionContext

Field Details

factory

protected final DHFactory factory

dh

protected AbstractDH dh

kemClient

private KeyEncapsulationMethod.Client kemClient

Constructor Details

DHGClient

protected DHGClient(DHFactory factory,
 Session session)

Method Details

getName

public final String getName()

Returns:

The resource name

newFactory

public static KeyExchangeFactory newFactory(DHFactory delegate)

init

public void init(byte[] v_s,
 byte[] v_c,
 byte[] i_s,
 byte[] i_c)
          throws Exception

Description copied from interface: KeyExchange

Initialize the key exchange algorithm.

Specified by:

init in interface KeyExchange

Overrides:

init in class AbstractDHKeyExchange

Parameters:

v_s - the server identification string

v_c - the client identification string

i_s - the server key initialization packet

i_c - the client key initialization packet

Throws:

Exception - if an error occurs

getDH

protected AbstractDH getDH()
                    throws Exception

Throws:

Exception

next

public boolean next(int cmd,
 Buffer buffer)
             throws Exception

Description copied from interface: KeyExchange

Process the next packet

Parameters:

cmd - the command

buffer - the packet contents positioned after the command

Returns:

a boolean indicating if the processing is complete or if more packets are to be received

Throws:

Exception - if an error occurs

verifyCertificate

protected void verifyCertificate(Session session,
 OpenSshCertificate openSshKey)
                          throws Exception

Throws:

Exception