anon.crypto.tinytls.keyexchange
Class Key_Exchange

java.lang.Object
  anon.crypto.tinytls.keyexchange.Key_Exchange

Direct Known Subclasses:

DHE_DSS_Key_Exchange, DHE_RSA_Key_Exchange

public abstract class Key_Exchange
extends java.lang.Object

Author:

stefan Abstract Class which is performs the key exchange

Constructor Summary

Key_Exchange()
Constructor

Method Summary

abstract byte[]	calculateClientFinished(byte[] handshakemessages) generate the client finished message (see RFC2246)
abstract byte[]	calculateClientKeyExchange() generates the client key exchange message (see RFC2246)
abstract byte[]	calculateKeys() calculates the key material (see RFC2246 TLS Record Protocoll)
abstract byte[]	calculateServerFinished(byte[] handshakemessages) calculates server finished message
abstract byte[]	generateServerKeyExchange(IMyPrivateKey key, byte[] clientrandom, byte[] serverrandom)
abstract void	processClientFinished(byte[] verify_data, byte[] handshakemessages) checks the client finished message
abstract void	processClientKeyExchange(java.math.BigInteger dh_y) processes the client key exchange
abstract void	processServerFinished(byte[] b, int len, byte[] handshakemessages) checks the server finished message
abstract void	processServerKeyExchange(byte[] b, int b_offset, int b_len, byte[] clientrandom, byte[] serverrandom, JAPCertificate cert) Decode the server keys and check the certificate

Methods inherited from class java.lang.Object

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

Constructor Detail

Key_Exchange

public Key_Exchange()

Constructor

Method Detail

generateServerKeyExchange

public abstract byte[] generateServerKeyExchange(IMyPrivateKey key,
                                                 byte[] clientrandom,
                                                 byte[] serverrandom)
                                          throws TLSException

Throws:

TLSException

processServerKeyExchange

public abstract void processServerKeyExchange(byte[] b,
                                              int b_offset,
                                              int b_len,
                                              byte[] clientrandom,
                                              byte[] serverrandom,
                                              JAPCertificate cert)
                                       throws TLSException

Decode the server keys and check the certificate

Parameters:

bytes - server keys

clientrandom - clientrandom

serverrandom - serverrandom

servercertificate - servercertificate

Throws:

TLSException

calculateServerFinished

public abstract byte[] calculateServerFinished(byte[] handshakemessages)

calculates server finished message

Parameters:

handshakemessages - handshakemessages

Returns:

server finished message

processServerFinished

public abstract void processServerFinished(byte[] b,
                                           int len,
                                           byte[] handshakemessages)
                                    throws TLSException

checks the server finished message

Parameters:

b - server finished message

Throws:

TLSException

processClientKeyExchange

public abstract void processClientKeyExchange(java.math.BigInteger dh_y)

processes the client key exchange

Parameters:

dh_y - diffie hellman parameter

calculateClientKeyExchange

public abstract byte[] calculateClientKeyExchange()
                                           throws TLSException

generates the client key exchange message (see RFC2246)

Returns:

client key exchange message

Throws:

TLSException

processClientFinished

public abstract void processClientFinished(byte[] verify_data,
                                           byte[] handshakemessages)
                                    throws TLSException

checks the client finished message

Parameters:

verify_data - verify data

handshakemessages - handshakemessages

Throws:

TLSException

calculateClientFinished

public abstract byte[] calculateClientFinished(byte[] handshakemessages)
                                        throws TLSException

generate the client finished message (see RFC2246)

Parameters:

handshakemessages - all handshakemessages that have been send before this

Returns:

client finished message

Throws:

TLSException

calculateKeys

public abstract byte[] calculateKeys()

calculates the key material (see RFC2246 TLS Record Protocoll)

Returns:

key material