com.viaoa.comm.ssl

Class SSLBase

java.lang.Object

com.viaoa.comm.ssl.SSLBase

Direct Known Subclasses:

SSLClient, SSLServer

public abstract class SSLBase
extends Object

SSL base class used by client and server to be able to send/receive data that is first encrypted.

Author:

vvia

Field Summary

Fields

Modifier and Type	Field and Description
protected String	host
protected int	port
static String[]	PREFERRED_CIPHER_NAMES Preferred encryption cipher to use for SSL sockets.
protected SSLContext	sslContext
protected SSLEngine	sslEngine

Constructor Summary

Constructors

Constructor and Description
SSLBase(String host, int port)

Method Summary

Modifier and Type	Method and Description
protected abstract SSLContext	createSSLContext() Implemented by Server/Client to set up correct ssl context.
protected abstract SSLEngine	createSSLEngine()
protected SSLContext	getSSLContext()
protected SSLEngine	getSSLEngine()
void	initialize() This can be called to initialize the SSLEngine, etc.
byte[]	input() performs a blocking read.
protected void	input(byte[] bs, int len, boolean bHandshakeOnly)
protected void	log(String msg)
void	output(byte[] bs, int offset, int len) This is the only way to send data to the client computer.
protected void	receiveInput(byte[] bs, int offset, int len) This is unencrypted data from the client, called from input(..)
void	resetSSL() This will reset and cause the SSL handshaking to have to be done again.
protected abstract void	sendOutput(byte[] bs, int offset, int len, boolean bHandshakeOnly) This is the encrypted data that needs to go to the client.

Methods inherited from class java.lang.Object

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

Field Detail

PREFERRED_CIPHER_NAMES

public static final String[] PREFERRED_CIPHER_NAMES

Preferred encryption cipher to use for SSL sockets.

sslContext

protected SSLContext sslContext

sslEngine

protected SSLEngine sslEngine

host

protected final String host

port

protected final int port

Constructor Detail

SSLBase

public SSLBase(String host,
               int port)

Method Detail

getSSLContext

protected SSLContext getSSLContext()
                            throws Exception

Throws:

Exception

getSSLEngine

protected SSLEngine getSSLEngine()
                          throws Exception

Throws:

Exception

resetSSL

public void resetSSL()
              throws Exception

This will reset and cause the SSL handshaking to have to be done again. Should not be needed, except for testing.

Throws:

Exception

initialize

public void initialize()
                throws Exception

This can be called to initialize the SSLEngine, etc. This is not required.

Throws:

Exception

output

public void output(byte[] bs,
                   int offset,
                   int len)
            throws Exception

This is the only way to send data to the client computer.

Throws:

Exception

input

protected void input(byte[] bs,
                     int len,
                     boolean bHandshakeOnly)
              throws Exception

Throws:

Exception

createSSLContext

protected abstract SSLContext createSSLContext()
                                        throws Exception

Implemented by Server/Client to set up correct ssl context.

Throws:

Exception

createSSLEngine

protected abstract SSLEngine createSSLEngine()
                                      throws Exception

Throws:

Exception

sendOutput

protected abstract void sendOutput(byte[] bs,
                                   int offset,
                                   int len,
                                   boolean bHandshakeOnly)
                            throws Exception

This is the encrypted data that needs to go to the client. This should be overwritten to call the SSLCLient input(..) method.

Throws:

Exception

receiveInput

protected void receiveInput(byte[] bs,
                            int offset,
                            int len)
                     throws Exception

This is unencrypted data from the client, called from input(..)

Throws:

Exception

input

public byte[] input()
             throws Exception

performs a blocking read.

Throws:

Exception

log

protected void log(String msg)