Hendrik Schmidt – Page 2

March 16, 2016 by Hendrik Schmidt

Troopers16 – GSM Network

Hello Troopers!

only a few seconds left! As a short reminder, there is a GSM network running on Troopers 2016. It should be available in the whole building. To attend the network you need to

Get a SIM Card @Troopers_Desk
Put it in your phone
Start the phone

That’s it!

You can always dial *#100# to get your phone number. All further information (and a phonebook) you’ll find on gsm.troopers.de, but here again a brief summary:

gsm.troopers.de
Phonebook
Update your name in phonebook via sending your_name to 1000
Submit tokens via sending your_token to 1111 (you must register at the terminal first)

Please note, against to our announcement, there is not Internet (GPRS) yet. Due to questions and problems, please contact Kevin Redon or Hendrik Schmidt. Have fun!

Events

March 10, 2016 by Hendrik Schmidt

TelcoSecDay 2016 – Final Agenda and more

Only a few days left until Troopers! I’d like to use this chance to publish the final agenda of TelcoSecDay 2016. We will start around 8:30am and will finish at about 6:15pm. After this, we will have a shared dinner in the historic center of Heidelberg. The exact location will be announced during the TSD.
Continue reading “TelcoSecDay 2016 – Final Agenda and more”

Events

March 3, 2016 by Hendrik Schmidt

Troopers16 – GSM Network

Same as last year, we will have a GSM based telephony network running at Troopers 2016. The network will be a closed network, which means it only can be used with Troopers SIM cards and between Troopers attendees only. You can use the network for

doing Voice Calls
send Short Messages (SMS)
have Internet Access
submit Challenge Tokens (see below)

Continue reading “Troopers16 – GSM Network”

Events

February 3, 2016 by Hendrik Schmidt

TelcoSecDay 2016 – Second Round of Talks

I am very happy to announce the second round of talks for the TelcoSecDay 2016. As mentioned in my previous post it will take place on March 15th. All invitations should be out by now; if you think you can contribute to the group and you are willing to join us – please let me know (hschmidt@ernw.de).

Still, not all talks are confirmed but the newly published talks will provide an idea about TSD 2016 and its discussions.
Continue reading “TelcoSecDay 2016 – Second Round of Talks”

Events

January 16, 2016 by Hendrik Schmidt

TelcoSecDay – First Round of Talks

Dear all,
This year the TelcoSecDay will take place on March 15th. For those of you who does not know about: the TelcoSecDay it is a sub-event of Troopers bringing together researchers, vendors and practitioners from the telecommunication / mobile security field.
Continue reading “TelcoSecDay – First Round of Talks”

Breaking

January 6, 2016 by Hendrik Schmidt

Security Analysis of VoLTE, Part 1

Hello everybody,
this time I’d like to share some thoughts and results about our telco research last year. We gathered a lot of information out of some projects we’d like to share and discuss with you. The following sections also provide an idea of the upcoming Telecommunication Security Workshop I will give with Kevin Redon at Troopers (click). The workshop will be about Radio Network Security (covered by Kevin) and security aspects of the Core Network (covered by myself), mainly focusing on Voice over LTE (VoLTE). That’s also the topic of today’s post.
Continue reading “Security Analysis of VoLTE, Part 1”

Building

May 17, 2015 by Hendrik Schmidt

How to Get a BaseStation

In our talks in the past we showed what might be possible if an attacker gets access to backhaul and/or core network of a telecommunication provider. In a security analysts perspective this is really disgusting, but provider always will argument that those attack scenarios are not realistic.

Continue reading “How to Get a BaseStation”

Events

March 18, 2015 by Hendrik Schmidt

GSM@Troopers

Additionally to Wifi, Troopers is also offering a GSM network.
If you want to use it, simply ask your phone to scan for available mobile networks. There you should see the usual T-Mobile D, Vodafone.de, E-Plus, O2-de operators, but also the unusual D 23 or 262 23. Just select this one, and your are done. You also can use the Troopers SIMs which you get on the welcome desk on the ground floor.

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Breaking

January 2, 2015 by Hendrik Schmidt

Telco Research 2015

Hello and a happy new year 2015 to everybody!

As follow up of our 2014 talk “LTE vs. Darwin” I want to inform you about our telco research in 2015. We are currently dealing with the so called IP Multimedia Subsystem (IMS), which handles the call and media logic of 4G telecommunication networks. This network part provides functions like VoIP (or VoLTE) and takes care of the interconnection to other call or media related networks.
Continue reading “Telco Research 2015”

Events

May 2, 2014 by Hendrik Schmidt

Hackito Ergo Sum 2014

Greetings from Heidelberg to Paris,

and thanks for a great time at HES14! A nice venue (a museum), sweet talks and stacks of spirit carried us through the three day con. It all set off with a keynote byTROOPERs veteran Edmond ‘bigezy’ Rogers, who stuck to a quite simple principle: “People do stupid things” and I guess every single one of you has quite a few examples for that on offer. Next to every speaker referenced that statement at some point during her/his talk. Furthermore we presented an updated version of our talk LTE vs. Darwin, covering our research of security in LTE networks and potential upcoming problems.

For those who missed HES2014, we prepared a short summary of some of the talks that inspired us.

Continue reading “Hackito Ergo Sum 2014”