int start = bufferIndex;
        this.isLoggedInAsGuest = ( buffer[ bufferIndex ] & 0x01 ) == 0x01 ? true : false;
        bufferIndex += 2;
        if ( this.isExtendedSecurity() ) {
            int blobLength = SMBUtil.readInt2(buffer, bufferIndex);
            bufferIndex += 2;
            this.blob = new byte[blobLength];
        }
        return bufferIndex - start;
    }