com.mindbright.ssh2

Class SSH2KEXECDHSHA2NIST

java.lang.Object

com.mindbright.ssh2.SSH2KeyExchanger

com.mindbright.ssh2.SSH2KEXECDHSHA2NIST

Direct Known Subclasses:

SSH2KEXECDHSHA2NIST.P256, SSH2KEXECDHSHA2NIST.P384, SSH2KEXECDHSHA2NIST.P521

public abstract class SSH2KEXECDHSHA2NIST
extends SSH2KeyExchanger

Base class for ECC DH key exchange as defined in RFC 5656

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SSH2KEXECDHSHA2NIST.P256
static class	SSH2KEXECDHSHA2NIST.P384
static class	SSH2KEXECDHSHA2NIST.P521

Field Summary

Fields

Modifier and Type	Field and Description
protected java.security.spec.ECPoint	clientE
protected java.security.interfaces.ECPrivateKey	ecPrivateKey
protected java.security.interfaces.ECPublicKey	ecPublicKey
protected byte[]	exchangeHash_H
protected java.security.spec.ECPoint	serverF
protected byte[]	serverHostKey
protected java.security.KeyPair	serverKey
protected java.security.MessageDigest	sha2
protected byte[]	sharedSecret_K
protected SSH2Transport	transport

Constructor Summary

Constructors

Constructor and Description
SSH2KEXECDHSHA2NIST()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	computeExchangeHash_H()
protected void	computeSharedSecret_K(java.security.spec.ECPoint point)
protected java.security.MessageDigest	createHash()
static java.security.spec.ECPoint	frombytes(byte[] b, java.security.spec.EllipticCurve curve)
protected void	generateECKeyPair()
abstract java.lang.String	getECName()
byte[]	getExchangeHash_H()
java.security.MessageDigest	getExchangeHashAlgorithm()
abstract java.lang.String	getHashName()
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	sendECDHINIT(int type)
static byte[]	tobytes(java.security.spec.ECPoint e, java.security.spec.EllipticCurve curve)

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

ecPublicKey

protected java.security.interfaces.ECPublicKey ecPublicKey

ecPrivateKey

protected java.security.interfaces.ECPrivateKey ecPrivateKey

serverHostKey

protected byte[] serverHostKey

serverF

protected java.security.spec.ECPoint serverF

clientE

protected java.security.spec.ECPoint clientE

sharedSecret_K

protected byte[] sharedSecret_K

exchangeHash_H

protected byte[] exchangeHash_H

sha2

protected java.security.MessageDigest sha2

serverKey

protected java.security.KeyPair serverKey

Constructor Detail

SSH2KEXECDHSHA2NIST

public SSH2KEXECDHSHA2NIST()

Method Detail

getName

public abstract java.lang.String getName()

getECName

public abstract java.lang.String getECName()

getHashName

public abstract java.lang.String getHashName()

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

tobytes

public static byte[] tobytes(java.security.spec.ECPoint e,
             java.security.spec.EllipticCurve curve)

frombytes

public static java.security.spec.ECPoint frombytes(byte[] b,
                                   java.security.spec.EllipticCurve curve)

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(java.security.spec.ECPoint point)
                              throws SSH2Exception

Throws:

SSH2Exception

sendECDHINIT

protected void sendECDHINIT(int type)
                     throws SSH2Exception

Throws:

SSH2Exception

createHash

protected java.security.MessageDigest createHash()
                                          throws SSH2Exception

Throws:

SSH2Exception

generateECKeyPair

protected void generateECKeyPair()
                          throws SSH2Exception

Throws:

SSH2Exception