org.universAAL.ri.gateway.communication.cipher

Class LegacyBlowfishCipher

java.lang.Object

org.universAAL.ri.gateway.communication.cipher.LegacyBlowfishCipher

All Implemented Interfaces:

SocketCipher

public class LegacyBlowfishCipher
extends Object
implements SocketCipher

Author:

amedrano

Field Summary

Fields

Modifier and Type	Field and Description
static String	HASH_KEY The Key for encryption.

Constructor Summary

Constructors

Constructor and Description
LegacyBlowfishCipher()

Method Summary

Modifier and Type	Method and Description
SocketCipher	acceptedSocket(Socket socket) Used to set the socket, specially to add the accepted socket.
Socket	createClientSocket(InetAddress host, int port) Create and connect a Socket.
ServerSocket	createServerSocket(int port, int backlog, InetAddress ifAddress) Create a ServerSocket.
Message	readMessage() Read data from a stream and decrypt it and convert to a Message.
boolean	sendMessage(Message m) This method encrypt and send the given data by adding at the begging of the encrypted data the length of the data that will be sent
boolean	setup(Properties props) Set up the Cipher with the properties.

Methods inherited from class java.lang.Object

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

Field Detail

HASH_KEY

public static final String HASH_KEY

The Key for encryption.

See Also:

Constant Field Values

Constructor Detail

LegacyBlowfishCipher

public LegacyBlowfishCipher()

Method Detail

setup

public boolean setup(Properties props)

Set up the Cipher with the properties.

Specified by:

setup in interface SocketCipher

Returns:

createServerSocket

public ServerSocket createServerSocket(int port,
                                       int backlog,
                                       InetAddress ifAddress)
                                throws IOException

Create a ServerSocket.

Specified by:

createServerSocket in interface SocketCipher

Parameters:

port - the port to listen to.

backlog - the number of allowed pending connections.

ifAddress - the address to which to bind.

Returns:

The Server Socket.

Throws:

IOException

See Also:

ServerSocketFactory.createServerSocket(int, int, InetAddress)

acceptedSocket

public SocketCipher acceptedSocket(Socket socket)

Used to set the socket, specially to add the accepted socket.

Specified by:

acceptedSocket in interface SocketCipher

createClientSocket

public Socket createClientSocket(InetAddress host,
                                 int port)
                          throws IOException

Create and connect a Socket. Automatically sets the Socket.

Specified by:

createClientSocket in interface SocketCipher

Parameters:

host - The address of the server.

port - The port of the server.

Returns:

An opened socked.

Throws:

IOException

See Also:

SocketFactory.createSocket(InetAddress, int)

sendMessage

public boolean sendMessage(Message m)
                    throws org.bouncycastle.crypto.CryptoException,
                           IOException

This method encrypt and send the given data by adding at the begging of the encrypted data the length of the data that will be sent

Specified by:

sendMessage in interface SocketCipher

Parameters:

m - message to be sent.

Returns:

Throws:

org.bouncycastle.crypto.CryptoException

EOFException - This means the underlying socket is closed.

IOException

readMessage

public Message readMessage()
                    throws org.bouncycastle.crypto.CryptoException,
                           IOException

Read data from a stream and decrypt it and convert to a Message. The protocol read at the beginning 4 bytes representing the actual size of the encrypted message that will follow.

Specified by:

readMessage in interface SocketCipher

Returns:

the decrypted message

Throws:

IOException

ClassNotFoundException

org.bouncycastle.crypto.CryptoException

EOFException - This means the underlying socket is closed.