MD4 md4 = new MD4();
            md4.update(password.getBytes(SmbConstants.UNI_ENCODING));
            HMACT64 hmac = new HMACT64(md4.digest());
            hmac.update(user.toUpperCase().getBytes(SmbConstants.UNI_ENCODING));
            hmac.update(domain.toUpperCase().getBytes(SmbConstants.UNI_ENCODING));
            hmac = new HMACT64(hmac.digest());
            hmac.update(challenge);

        verifyAESHMAC(3, expect, key, data.getBytes(StandardCharsets.US_ASCII));
    }


    @Test
    public void testAES256Checksum () throws GeneralSecurityException {
        String data = "fourteen";
        String key = "B1AE4CD8462AFF1677053CC9279AAC30B796FB81CE21474DD3DDBCFEA4EC76D7";
        String expect = "E08739E3279E2903EC8E3836";
        verifyAESHMAC(4, expect, key, data.getBytes(StandardCharsets.US_ASCII));
    }

            // no password in tree connect
            dst[dstIndex++] = (byte)0x00;
        }
        dstIndex += writeString( path, dst, dstIndex );
        try {
            System.arraycopy( service.getBytes( "ASCII" ), 0, dst, dstIndex, service.length() );
        } catch( UnsupportedEncodingException uee ) {
            return 0;
        }
        dstIndex += service.length();
        dst[dstIndex++] = (byte)'\0';

        Encdec.enc_uint32le(len + 1, buf, i); i += 4;
        Encdec.enc_uint32le(0, buf, i); i += 4;
        Encdec.enc_uint32le(len + 1, buf, i); i += 4;
        try {
            System.arraycopy(s.getBytes("UTF-16LE"), 0, buf, i, len * 2);
        } catch( UnsupportedEncodingException uee ) {
        }
        i += len * 2;
        buf[i++] = (byte)'\0';
        buf[i++] = (byte)'\0';
        advance(i - index);

@SuppressWarnings ( "javadoc" )
public class PacMac {

    /**
     * 
     */
    private static final String HMAC_KEY = "HMAC";
    private static final byte[] MD5_CONSTANT = "signaturekey\0".getBytes(StandardCharsets.US_ASCII);
    private static final byte[] ZERO_IV = new byte[] {
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
    };

        return new String(getRaw(), UTF16LE);
    }


    /**
     * @param targetName
     * @return
     */
    private static byte[] encode ( String targetName ) {
        return targetName.getBytes(UTF16LE);
    }

    }

    int writeWireFormat( byte[] dst, int dstIndex ) {
        // write 0x20 in first byte
        dst[dstIndex] = 0x20;

        // write name
        try {
            byte tmp[] = name.getBytes( Name.OEM_ENCODING );
            int i;
            for( i = 0; i < tmp.length; i++ ) {
                dst[dstIndex + ( 2 * i + 1 )] = (byte)((( tmp[i] & 0xF0 ) >> 4 ) + 0x41 );

    }


    @Override
    protected int writeParametersWireFormat ( byte[] dst, int dstIndex ) {
        int start = dstIndex;
        byte[] descr;

        try {
            descr = DESCR.getBytes("ASCII");
        }
        catch ( UnsupportedEncodingException uee ) {
            return 0;
        }

        SMBUtil.writeInt2(NET_SHARE_ENUM, dst, dstIndex);
        dstIndex += 2;

        int start = dstIndex;
        byte[] descr;
        int which = getSubCommand() == NET_SERVER_ENUM2 ? 0 : 1;

        try {
            descr = DESCR[ which ].getBytes("ASCII");
        }
        catch ( UnsupportedEncodingException uee ) {
            return 0;
        }

        SMBUtil.writeInt2(getSubCommand() & 0xFF, dst, dstIndex);
        dstIndex += 2;

     * @param string
     * @return null terminated ASCII bytes
     */
    private static byte[] toCBytes ( String string ) {
        byte[] data = new byte[string.length() + 1];
        System.arraycopy(string.getBytes(StandardCharsets.US_ASCII), 0, data, 0, string.length());
        return data;
    }