Package net.schmizz.sshj.transport.kex

Class AbstractDHGex

java.lang.Object

net.schmizz.sshj.transport.kex.KeyExchangeBase

net.schmizz.sshj.transport.kex.AbstractDH

net.schmizz.sshj.transport.kex.AbstractDHGex

All Implemented Interfaces:

KeyExchange

Direct Known Subclasses:

DHGexSHA1, DHGexSHA256

public abstract class AbstractDHGex
extends AbstractDH

Field Summary

Fields

Modifier and Type	Field	Description
private org.slf4j.Logger	log
private int	maxBits
private int	minBits
private int	preferredBits

Fields inherited from class net.schmizz.sshj.transport.kex.AbstractDH

dh

Fields inherited from class net.schmizz.sshj.transport.kex.KeyExchangeBase

digest, H, hostKey, trans

Constructor Summary

Constructors

Constructor	Description
AbstractDHGex(Digest digest)

Method Summary

Modifier and Type	Method	Description
void	init(Transport trans, java.lang.String V_S, java.lang.String V_C, byte[] I_S, byte[] I_C)	Initialize the key exchange algorithm.
boolean	next(Message msg, SSHPacket buffer)	Process the next packet
private boolean	parseGexGroup(SSHPacket buffer)
private boolean	parseGexReply(SSHPacket buffer)

Methods inherited from class net.schmizz.sshj.transport.kex.AbstractDH

getK

Methods inherited from class net.schmizz.sshj.transport.kex.KeyExchangeBase

getH, getHash, getHostKey, initializedBuffer

Methods inherited from class java.lang.Object

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

Field Detail

log

private final org.slf4j.Logger log

minBits

private final int minBits

See Also:

Constant Field Values

maxBits

private final int maxBits

See Also:

Constant Field Values

preferredBits

private final int preferredBits

See Also:

Constant Field Values

Constructor Detail

AbstractDHGex

public AbstractDHGex(Digest digest)

Method Detail

init

public void init(Transport trans,
                 java.lang.String V_S,
                 java.lang.String V_C,
                 byte[] I_S,
                 byte[] I_C)
          throws java.security.GeneralSecurityException,
                 TransportException

Description copied from interface: KeyExchange

Initialize the key exchange algorithm.

Specified by:

init in interface KeyExchange

Overrides:

init in class KeyExchangeBase

Parameters:

trans - the transport

V_S - the server identification string

V_C - the client identification string

I_S - the server key init packet

I_C - the client key init packet

Throws:

java.security.GeneralSecurityException

TransportException - if there is an error sending a packet

next

public boolean next(Message msg,
                    SSHPacket buffer)
             throws java.security.GeneralSecurityException,
                    TransportException

Description copied from interface: KeyExchange

Process the next packet

Parameters:

msg - message identifier

buffer - the packet

Returns:

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

Throws:

java.security.GeneralSecurityException

TransportException - if there is an error sending a packet

parseGexReply

private boolean parseGexReply(SSHPacket buffer)
                       throws Buffer.BufferException,
                              java.security.GeneralSecurityException,
                              TransportException

Throws:

Buffer.BufferException

java.security.GeneralSecurityException

TransportException

parseGexGroup

private boolean parseGexGroup(SSHPacket buffer)
                       throws Buffer.BufferException,
                              java.security.GeneralSecurityException,
                              TransportException

Throws:

Buffer.BufferException

java.security.GeneralSecurityException

TransportException