com.mindbright.ssh2

Class SSH2KEXDHGroupNumSHA1

java.lang.Object

com.mindbright.ssh2.SSH2KeyExchanger

com.mindbright.ssh2.SSH2KEXDHGroupNumSHA1

Direct Known Subclasses:

SSH2KEXDHGroup14SHA1, SSH2KEXDHGroup1SHA1

public abstract class SSH2KEXDHGroupNumSHA1
extends SSH2KeyExchanger

Base class for diffie hellman key exchange using predefined groups.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.math.BigInteger	clientE
protected javax.crypto.interfaces.DHPrivateKey	dhPrivateKey
protected javax.crypto.interfaces.DHPublicKey	dhPublicKey
protected byte[]	exchangeHash_H
protected java.math.BigInteger	serverF
protected byte[]	serverHostKey
protected java.security.KeyPair	serverKey
protected java.security.MessageDigest	sha1
protected byte[]	sharedSecret_K
protected SSH2Transport	transport

Constructor Summary

Constructors

Constructor and Description
SSH2KEXDHGroupNumSHA1()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	computeExchangeHash_H()
protected void	computeSharedSecret_K(javax.crypto.spec.DHPublicKeySpec peerPubSpec)
protected java.security.MessageDigest	createHash()
protected void	generateDHKeyPair(javax.crypto.spec.DHParameterSpec dhParams)
byte[]	getExchangeHash_H()
java.security.MessageDigest	getExchangeHashAlgorithm()
abstract java.math.BigInteger	getGroupG()
abstract java.math.BigInteger	getGroupP()
abstract java.lang.String	getName()
byte[]	getSharedSecret_K()
void	init(SSH2Transport transport)
void	init(SSH2Transport transport, java.security.KeyPair serverKey)
void	processKEXMethodPDU(SSH2TransportPDU pdu)
protected void	sendDHINIT(int type)

Methods inherited from class com.mindbright.ssh2.SSH2KeyExchanger

getHostKeyAlgorithms, getInstance

Methods inherited from class java.lang.Object

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

Field Detail

transport

protected SSH2Transport transport

dhPublicKey

protected javax.crypto.interfaces.DHPublicKey dhPublicKey

dhPrivateKey

protected javax.crypto.interfaces.DHPrivateKey dhPrivateKey

serverHostKey

protected byte[] serverHostKey

serverF

protected java.math.BigInteger serverF

clientE

protected java.math.BigInteger clientE

sharedSecret_K

protected byte[] sharedSecret_K

exchangeHash_H

protected byte[] exchangeHash_H

sha1

protected java.security.MessageDigest sha1

serverKey

protected java.security.KeyPair serverKey

Constructor Detail

SSH2KEXDHGroupNumSHA1

public SSH2KEXDHGroupNumSHA1()

Method Detail

getGroupP

public abstract java.math.BigInteger getGroupP()

getGroupG

public abstract java.math.BigInteger getGroupG()

getName

public abstract java.lang.String getName()

init

public void init(SSH2Transport transport)
          throws SSH2Exception

Specified by:

init in class SSH2KeyExchanger

Throws:

SSH2Exception

init

public void init(SSH2Transport transport,
        java.security.KeyPair serverKey)
          throws SSH2Exception

Throws:

SSH2Exception

processKEXMethodPDU

public void processKEXMethodPDU(SSH2TransportPDU pdu)
                         throws SSH2Exception

Specified by:

processKEXMethodPDU in class SSH2KeyExchanger

Throws:

SSH2Exception

getExchangeHashAlgorithm

public java.security.MessageDigest getExchangeHashAlgorithm()

Specified by:

getExchangeHashAlgorithm in class SSH2KeyExchanger

getSharedSecret_K

public byte[] getSharedSecret_K()

Specified by:

getSharedSecret_K in class SSH2KeyExchanger

getExchangeHash_H

public byte[] getExchangeHash_H()

Specified by:

getExchangeHash_H in class SSH2KeyExchanger

computeExchangeHash_H

protected void computeExchangeHash_H()

computeSharedSecret_K

protected void computeSharedSecret_K(javax.crypto.spec.DHPublicKeySpec peerPubSpec)
                              throws SSH2Exception

Throws:

SSH2Exception

sendDHINIT

protected void sendDHINIT(int type)
                   throws SSH2Exception

Throws:

SSH2Exception

createHash

protected java.security.MessageDigest createHash()
                                          throws SSH2Exception

Throws:

SSH2Exception

generateDHKeyPair

protected void generateDHKeyPair(javax.crypto.spec.DHParameterSpec dhParams)
                          throws SSH2Exception

Throws:

SSH2Exception