Package com.jcraft.jsch

Class KeyExchange

java.lang.Object

com.jcraft.jsch.KeyExchange

Direct Known Subclasses:

DHECN, DHG1, DHG14, DHGEX

public abstract class KeyExchange
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
protected int	DSS
protected int	ECDSA
(package private) static java.lang.String	enc_c2s
(package private) static java.lang.String	enc_s2c
protected byte[]	H
protected byte[]	K
protected byte[]	K_S
(package private) static java.lang.String	kex
private java.lang.String	key_alg_name
(package private) static java.lang.String	lang_c2s
(package private) static java.lang.String	lang_s2c
(package private) static java.lang.String	mac_c2s
(package private) static java.lang.String	mac_s2c
(package private) static int	PROPOSAL_COMP_ALGS_CTOS
(package private) static int	PROPOSAL_COMP_ALGS_STOC
(package private) static int	PROPOSAL_ENC_ALGS_CTOS
(package private) static int	PROPOSAL_ENC_ALGS_STOC
(package private) static int	PROPOSAL_KEX_ALGS
(package private) static int	PROPOSAL_LANG_CTOS
(package private) static int	PROPOSAL_LANG_STOC
(package private) static int	PROPOSAL_MAC_ALGS_CTOS
(package private) static int	PROPOSAL_MAC_ALGS_STOC
(package private) static int	PROPOSAL_MAX
(package private) static int	PROPOSAL_SERVER_HOST_KEY_ALGS
protected int	RSA
(package private) static java.lang.String	server_host_key
protected Session	session
protected HASH	sha
static int	STATE_END
private int	type

Constructor Summary

Constructors

Constructor	Description
KeyExchange()

Method Summary

Modifier and Type	Method	Description
java.lang.String	getFingerPrint()
(package private) byte[]	getH()
(package private) HASH	getHash()
(package private) byte[]	getHostKey()
(package private) byte[]	getK()
java.lang.String	getKeyAlgorithName()
java.lang.String	getKeyType()
abstract int	getState()
protected static java.lang.String[]	guess(byte[] I_S, byte[] I_C)
abstract void	init(Session session, byte[] V_S, byte[] V_C, byte[] I_S, byte[] I_C)
abstract boolean	next(Buffer buf)
protected byte[]	normalize(byte[] secret)
protected boolean	verify(java.lang.String alg, byte[] K_S, int index, byte[] sig_of_H)

Methods inherited from class java.lang.Object

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

Field Detail

PROPOSAL_KEX_ALGS

static final int PROPOSAL_KEX_ALGS

See Also:

Constant Field Values

PROPOSAL_SERVER_HOST_KEY_ALGS

static final int PROPOSAL_SERVER_HOST_KEY_ALGS

See Also:

Constant Field Values

PROPOSAL_ENC_ALGS_CTOS

static final int PROPOSAL_ENC_ALGS_CTOS

See Also:

Constant Field Values

PROPOSAL_ENC_ALGS_STOC

static final int PROPOSAL_ENC_ALGS_STOC

See Also:

Constant Field Values

PROPOSAL_MAC_ALGS_CTOS

static final int PROPOSAL_MAC_ALGS_CTOS

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Constant Field Values

PROPOSAL_MAC_ALGS_STOC

static final int PROPOSAL_MAC_ALGS_STOC

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Constant Field Values

PROPOSAL_COMP_ALGS_CTOS

static final int PROPOSAL_COMP_ALGS_CTOS

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Constant Field Values

PROPOSAL_COMP_ALGS_STOC

static final int PROPOSAL_COMP_ALGS_STOC

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Constant Field Values

PROPOSAL_LANG_CTOS

static final int PROPOSAL_LANG_CTOS

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Constant Field Values

PROPOSAL_LANG_STOC

static final int PROPOSAL_LANG_STOC

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Constant Field Values

PROPOSAL_MAX

static final int PROPOSAL_MAX

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Constant Field Values

kex

static java.lang.String kex

server_host_key

static java.lang.String server_host_key

enc_c2s

static java.lang.String enc_c2s

enc_s2c

static java.lang.String enc_s2c

mac_c2s

static java.lang.String mac_c2s

mac_s2c

static java.lang.String mac_s2c

lang_c2s

static java.lang.String lang_c2s

lang_s2c

static java.lang.String lang_s2c

STATE_END

public static final int STATE_END

See Also:

Constant Field Values

session

protected Session session

sha

protected HASH sha

K

protected byte[] K

H

protected byte[] H

K_S

protected byte[] K_S

RSA

protected final int RSA

See Also:

Constant Field Values

DSS

protected final int DSS

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Constant Field Values

ECDSA

protected final int ECDSA

See Also:

Constant Field Values

type

private int type

key_alg_name

private java.lang.String key_alg_name

Constructor Detail

KeyExchange

public KeyExchange()

Method Detail

init

public abstract void init(Session session,
                          byte[] V_S,
                          byte[] V_C,
                          byte[] I_S,
                          byte[] I_C)
                   throws java.lang.Exception

Throws:

java.lang.Exception

next

public abstract boolean next(Buffer buf)
                      throws java.lang.Exception

Throws:

java.lang.Exception

getState

public abstract int getState()

getKeyType

public java.lang.String getKeyType()

getKeyAlgorithName

public java.lang.String getKeyAlgorithName()

guess

protected static java.lang.String[] guess(byte[] I_S,
                                          byte[] I_C)

getFingerPrint

public java.lang.String getFingerPrint()

getK

byte[] getK()

getH

byte[] getH()

getHash

HASH getHash()

getHostKey

byte[] getHostKey()

normalize

protected byte[] normalize(byte[] secret)

verify

protected boolean verify(java.lang.String alg,
                         byte[] K_S,
                         int index,
                         byte[] sig_of_H)
                  throws java.lang.Exception

Throws:

java.lang.Exception