net.jradius.util

Class MSCHAP

java.lang.Object

net.jradius.util.MSCHAP

public final class MSCHAP
extends Object

MSCHAP implementation translated into Java from the original pseudocode can be found in RFC 2759 and 2433.

Author:

David Bird

Constructor Summary

Constructors

Constructor and Description
MSCHAP()

Method Summary

Modifier and Type	Method and Description
static void	DesHash(byte[] key, int offsetKey, byte[] Cypher, int offsetCypher)
static byte[]	doMSCHAPv1(byte[] Password, byte[] AuthChallenge) Do MSCHAPv1 (supports using NT Password)
static byte[]	doMSCHAPv2(byte[] UserName, byte[] Password, byte[] AuthChallenge) Do MSCHAPv2
static byte[]	LmChallengeResponse(byte[] Challenge, byte[] Password)
static byte[]	LmPasswordHash(byte[] Password)
static boolean	verifyMSCHAPv2(byte[] UserName, byte[] Password, byte[] Challenge, byte[] Response)

Methods inherited from class java.lang.Object

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

Constructor Detail

MSCHAP

public MSCHAP()

Method Detail

DesHash

public static void DesHash(byte[] key,
                           int offsetKey,
                           byte[] Cypher,
                           int offsetCypher)

LmPasswordHash

public static byte[] LmPasswordHash(byte[] Password)

LmChallengeResponse

public static byte[] LmChallengeResponse(byte[] Challenge,
                                         byte[] Password)

doMSCHAPv1

public static byte[] doMSCHAPv1(byte[] Password,
                                byte[] AuthChallenge)
                         throws NoSuchAlgorithmException

Do MSCHAPv1 (supports using NT Password)

Parameters:

Password - The User's Password value in bytes

AuthChallenge - The 16 byte authentication challenge

Returns:

Returns a 50 byte array - the MSCHAP Response

Throws:

NoSuchAlgorithmException

doMSCHAPv2

public static byte[] doMSCHAPv2(byte[] UserName,
                                byte[] Password,
                                byte[] AuthChallenge)
                         throws NoSuchAlgorithmException

Do MSCHAPv2

Parameters:

UserName - The User-Name attribute value bytes

Password - The User's Password value in bytes

AuthChallenge - The 16 byte authentication challenge

Returns:

Returns a 50 byte array - the MSCHAPv2 Response

Throws:

NoSuchAlgorithmException

verifyMSCHAPv2

public static boolean verifyMSCHAPv2(byte[] UserName,
                                     byte[] Password,
                                     byte[] Challenge,
                                     byte[] Response)
                              throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException