* {@inheritDoc}
     *
     * @see jcifs.smb.NtlmPasswordAuthenticator#getUnicodeHash(jcifs.CIFSContext, byte[])
     */
    @Override
    public byte[] getUnicodeHash ( CIFSContext tc, byte[] chlng ) throws GeneralSecurityException {
        if ( this.hashesExternal ) {
            return this.unicodeHash;
        }
        return super.getUnicodeHash(tc, chlng);
    }


    /**
     * {@inheritDoc}
     *

            case 1:
            case 2:
                macSigningKey = new byte[40];
                auth.getUserSessionKey(transport.server.encryptionKey, macSigningKey, 0);
                System.arraycopy(auth.getUnicodeHash(transport.server.encryptionKey),
                            0, macSigningKey, 16, 24);
                break;
            case 3:
            case 4:
            case 5:
                macSigningKey = new byte[16];

            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];

                } else if (session.transport.server.encryptedPasswords) {
                    lmHash = auth.getAnsiHash( session.transport.server.encryptionKey );
                    ntHash = auth.getUnicodeHash( session.transport.server.encryptionKey );
                    // prohibit HTTP auth attempts for the null session
                    if (lmHash.length == 0 && ntHash.length == 0) {

     * 
     * @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:

                    if ( server.encryptedPasswords ) {
                        this.lmHash = a.getAnsiHash(tc, server.encryptionKey);
                        this.ntHash = a.getUnicodeHash(tc, server.encryptionKey);
                        // prohibit HTTP auth attempts for the null session
                        if ( this.lmHash.length == 0 && this.ntHash.length == 0 ) {

        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: