|| this.sbuf[ 7 ] != (byte) 'B' ) {
            throw new IOException("Houston we have a synchronization problem");
        }

        int nextCommand = Encdec.dec_uint32le(this.sbuf, 4 + 20);
        int maximumBufferSize = getContext().getConfig().getMaximumBufferSize();
        int msgSize = nextCommand != 0 ? nextCommand : size;
        if ( msgSize > maximumBufferSize ) {

            InvalidKeyException, IllegalBlockSizeException, BadPaddingException {
        Cipher cipher;
        byte[] decrypt;
        byte[] code = new byte[4];
        Encdec.enc_uint32le(2, code, 0);
        byte[] codeHmac = getHmac(code, key.getEncoded());

        byte[] dataChecksum = new byte[KerberosConstants.CHECKSUM_SIZE];