org.mobicents.slee.resource.parlay.util.crypto
Class CHAPUtil

java.lang.Object
  org.mobicents.slee.resource.parlay.util.crypto.CHAPUtil

public class CHAPUtil
extends java.lang.Object

This class provides utility methods for the creation, use and storage of RSA public and private keys.

Constructor Summary

CHAPUtil()

Method Summary

byte[]	generateCHAPRequestPacket(byte[] challenge) used to build the CHAP Request Packet
byte[]	generateCHAPResponsePacket(byte identifier, byte[] challenge, byte[] responseName) used to build the CHAP response packet
byte[]	generateMD5HashChallenge(byte request_id, java.lang.String sharedSecret, byte[] challenge) Takes the challenge id, shared secret and the challenge and performs a MD5 Hash operation on it
protected java.security.MessageDigest	getMd5Digest() Returns a MD5 digest.

Methods inherited from class java.lang.Object

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

Constructor Detail

CHAPUtil

public CHAPUtil()

Method Detail

generateCHAPRequestPacket

public byte[] generateCHAPRequestPacket(byte[] challenge)

used to build the CHAP Request Packet

Parameters:

challenge -

Returns:

generateCHAPResponsePacket

public byte[] generateCHAPResponsePacket(byte identifier,
                                         byte[] challenge,
                                         byte[] responseName)

used to build the CHAP response packet

Parameters:

identifier -

challenge -

responseName -

Returns:

generateMD5HashChallenge

public byte[] generateMD5HashChallenge(byte request_id,
                                       java.lang.String sharedSecret,
                                       byte[] challenge)
                                throws java.security.NoSuchAlgorithmException

Takes the challenge id, shared secret and the challenge and performs a MD5 Hash operation on it

Parameters:

request_id -

sharedSecret -

challenge -

Returns:

Throws:

java.security.NoSuchAlgorithmException

getMd5Digest

protected java.security.MessageDigest getMd5Digest()
                                            throws java.security.NoSuchAlgorithmException

Returns a MD5 digest.

Returns:

MessageDigest object

Throws:

java.security.NoSuchAlgorithmException