Collaborate Disseminate
Millions of people all over the world don’t have access to clean drinking water, and it’s largely because of pollution by corporations and individuals. Solving this problem requires an affordable, scalable way to quickly judge water quality, package the data, and present it to an authority that can crack down …read more
Continue reading WaterAid Finds Potable Water and Stops Polluters
I am doing a security assessment on the communication security of a legacy IoT device. The objective is to assess and find security gaps in the current design/implementation.
The mode of assessment is manual, primarily with the reference o… Continue reading Security assessment of a legacy SSL/TLS implementation on an IoT device
One of the useful side effects of the ubiquitous availability of cellular network data modules is that they can be used to create custom mobile phones. It’s surprising in a way that we don’t see as many of these projects as we’d expect, but by way of redressing that deficiency …read more
Continue reading A Mobile Phone For The Pulse Dial Generation
I’m in the UK. In order to top up a pay-as-you-go SIM card, I had to first ring the mobile network to associate my bank card with the SIM before asking them to credit £10 to it (future top-ups don’t require a phone call). The mobile networ… Continue reading Is inputting credit card numbers over a mobile phone secure?
Some time ago I came across this article – https://www.theverge.com/2017/7/30/16058174/diy-cellphone-sniffer-gsm-imsi-catcher. It says how to do something called “IMSI catcher,” but it is not an IMSI catcher that pretends to be a telephone… Continue reading Is it possible to recognize nearby telephone numbers from computer with modem?
For many projects, a WiFi connection is overkill, too complicated, or too far away to work properly. Even though it’s relatively ubiquitous, sometimes the best choice for getting data to or from the real world is a connection to the cellular network, which can be done with the M590 module …read more
SIM cards are all around us, and with the continuing growth of the Internet of Things, spawning technologies like NB-IoT, this might as well be very literal soon. But what do we really know about them, their internal structure, and their communication protocols? And by extension, their security? To shine …read more
What attacks can a 5G network suffer from?
What encryption/decryption scheme does 5G use?
Obviously, I am asking from the perspective of a curious learner. I have googled for answers, but it is not very clear.
Does this module: https://apps.nsnam.org/app/mmwave/ also include the encryption/decryption process of the 5G? What I mean is when I run this module on ns-3, it will process encryption/decryption also?
Continue reading Simulating 5G cellular on ns-3 simulator [on hold]
I am trying to understand the process of authentication in GSM
And I know that authentication uses a challenge-response mechanism
Also algorithm A3 is used for authentication, A5 is used for encryption, and A8 is used for … Continue reading Authentication process in GSM security