org.PingOO.DLAI.PPM.security
Class FromServerSignature

java.lang.Object
  |
  +--org.PingOO.DLAI.PPM.security.FromServerSignature

public final class FromServerSignature

extends java.lang.Object

This class can verify the signature of the incoming messages.
It contains the key sent by the server at the beginning od the connection.

Since:

PingOO 2.0

Version:

2.0

Author:

Fabrice Bouyé (bouye@cur-archamps.fr)

Field Summary

private static java.security.PublicKey

publicKey The public key need to verify the signature of the datas.

Constructor Summary

private

FromServerSignature() Needed to hide the constructor from the outside.

Method Summary

static java.security.PublicKey	getPublicKey() Returns the server's public key.
static void	setPublicKey(java.security.PublicKey key) Sets the public key needed to verify the signature of the incoming messages from the server.
static boolean	verifySignature(byte[] data, byte[] signature) Verify the signature of a byte array.

Methods inherited from class java.lang.Object

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

Field Detail

publicKey

private static java.security.PublicKey publicKey

The public key need to verify the signature of the datas.

Constructor Detail

FromServerSignature

private FromServerSignature()

Needed to hide the constructor from the outside.

Method Detail

getPublicKey

public static java.security.PublicKey getPublicKey()

Returns the server's public key.

Returns:

The server's public key.

setPublicKey

public static final void setPublicKey(java.security.PublicKey key)

Sets the public key needed to verify the signature of the incoming messages from the server.

verifySignature

public static final boolean verifySignature(byte[] data,
                                            byte[] signature)
                                     throws java.lang.NullPointerException

Verify the signature of a byte array.

Parameters:

data - The byte array to verify.

signature - The supposed corresponding signature.

Returns:

true if the message and the signature are correct, false otherwise.

Throws:

java.lang.NullPointerException - If data or if signature is null.