Package net.ME1312.SubData.Client.Encryption

Class DHE

java.lang.Object

net.ME1312.SubData.Client.Encryption.DHE

All Implemented Interfaces:

Cipher, CipherFactory

public class DHE
extends Object
implements Cipher, CipherFactory

Diffie-Hellman Exchange Handler Class (agrees upon and uses an AES encryption key)

Method Summary

Modifier and Type	Method	Description
static void	addCipher(String handle, Supplier<Pair<Cipher,String>> generator, Function<String,Cipher> parser)
void	decrypt(DataClient client, InputStream in, OutputStream out)	Decrypt Data
void	encrypt(DataClient client, InputStream in, OutputStream out)	Encrypt Data
static DHE	get(int keyLength)	Get the DHE instance
Cipher	getCipher(String handle, String key)	Get a cipher by name
String	getName()	Get the name of this Cipher
Pair<Cipher,String>	newCipher(String handle)	Get a cipher by name
static void	removeCipher(String handle)
void	retire(DataClient client)	Retire this encryption method for a specified Client

Methods inherited from class java.lang.Object

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

Method Details

getName

public String getName()

Description copied from interface: Cipher

Get the name of this Cipher

Specified by:

getName in interface Cipher

Returns:

Cipher Name

get

public static DHE get(int keyLength)

Get the DHE instance

Returns:

DHE

encrypt

public void encrypt(DataClient client,
 InputStream in,
 OutputStream out)
             throws Exception

Description copied from interface: Cipher

Encrypt Data

Specified by:

encrypt in interface Cipher

Parameters:

client - Client

in - Decrypted Data

out - Encrypted Data

Throws:

Exception

decrypt

public void decrypt(DataClient client,
 InputStream in,
 OutputStream out)
             throws Exception

Description copied from interface: Cipher

Decrypt Data

Specified by:

decrypt in interface Cipher

Parameters:

client - Client

in - Encrypted Data

out - Decrypted Data

Throws:

Exception

retire

public void retire(DataClient client)

Description copied from interface: Cipher

Retire this encryption method for a specified Client

Specified by:

retire in interface Cipher

Parameters:

client - Client

newCipher

public Pair<Cipher,String> newCipher(String handle)

Description copied from interface: CipherFactory

Get a cipher by name

Specified by:

newCipher in interface CipherFactory

Parameters:

handle - Cipher name

Returns:

Cipher/Token pair

getCipher

public Cipher getCipher(String handle,
 String key)

Description copied from interface: CipherFactory

Get a cipher by name

Specified by:

getCipher in interface CipherFactory

Parameters:

handle - Cipher name

key - Token

Returns:

Cipher

addCipher

public static void addCipher(String handle,
 Supplier<Pair<Cipher,String>> generator,
 Function<String,Cipher> parser)

removeCipher

public static void removeCipher(String handle)