case 2:
                this.macSigningKey = new byte[40];
                auth.getUserSessionKey(transport.getContext(), serverEncryptionKey, this.macSigningKey, 0);
                System.arraycopy(auth.getUnicodeHash(transport.getContext(), serverEncryptionKey), 0, this.macSigningKey, 16, 24);
                break;
            case 3:
            case 4:
            case 5:
                this.macSigningKey = new byte[16];

     * 
     * @param tc
     * @param chlng
     * @return the hash for the given challenge
     * @throws GeneralSecurityException
     */
    public byte[] getUnicodeHash ( CIFSContext tc, byte[] chlng ) throws GeneralSecurityException {
        switch ( tc.getConfig().getLanManCompatibility() ) {
        case 0:
        case 1:
        case 2:

        default:
            return getPreNTLMResponse( password, challenge );
        }
    }
/**
 * Computes the 24 byte Unicode password hash given the 8 byte server challenge.
 */
    public byte[] getUnicodeHash( byte[] challenge ) {
        if( hashesExternal ) {
            return unicodeHash;
        }
        switch (LM_COMPATIBILITY) {
        case 0:
        case 1:
        case 2: