Package net.schmizz.sshj.transport.kex

Class KeyExchangeBase

java.lang.Object

net.schmizz.sshj.transport.kex.KeyExchangeBase

All Implemented Interfaces:

KeyExchange

Direct Known Subclasses:

AbstractDH

public abstract class KeyExchangeBase
extends Object
implements KeyExchange

Field Summary

Fields

Modifier and Type	Field	Description
protected final Digest	digest
protected byte[]	H
protected PublicKey	hostKey
private byte[]	I_C
private byte[]	I_S
protected Transport	trans
private String	V_C
private String	V_S

Constructor Summary

Constructors

Constructor	Description
KeyExchangeBase(Digest digest)

Method Summary

Modifier and Type	Method	Description
byte[]	getH()
Digest	getHash()	The message digest used by this key exchange algorithm.
PublicKey	getHostKey()
void	init(Transport trans, String V_S, String V_C, byte[] I_S, byte[] I_C)	Initialize the key exchange algorithm.
protected Buffer.PlainBuffer	initializedBuffer()

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.schmizz.sshj.transport.kex.KeyExchange

getK, next

Field Details

trans

protected Transport trans

digest

protected final Digest digest

H

protected byte[] H

hostKey

protected PublicKey hostKey

V_S

private String V_S

V_C

private String V_C

I_S

private byte[] I_S

I_C

private byte[] I_C

Constructor Details

KeyExchangeBase

public KeyExchangeBase(Digest digest)

Method Details

init

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

Description copied from interface: KeyExchange

Initialize the key exchange algorithm.

Specified by:

init in interface KeyExchange

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:

GeneralSecurityException

TransportException - if there is an error sending a packet

initializedBuffer

protected Buffer.PlainBuffer initializedBuffer()

getH

public byte[] getH()

Specified by:

getH in interface KeyExchange

Returns:

the computed H parameter

getHash

public Digest getHash()

Description copied from interface: KeyExchange

The message digest used by this key exchange algorithm.

Specified by:

getHash in interface KeyExchange

Returns:

the message digest

getHostKey

public PublicKey getHostKey()

Specified by:

getHostKey in interface KeyExchange

Returns:

the host key determined from server's response packets