João Pedro Dias
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  • Increasing the Dependability of Internet-of-Things Systems in the context of End-User Development Environments

    April 01, 2022 research phd engineering software iot

    Today, 1 April of 2022, I have successfully defended my PhD thesis work on Software Engineering and Internet-of-Things entitled “Increasing the Dependability of Internet-of-Things Systems in the context of End-User Development Environments”. Here follows the abstract.

  • Notes on (Software Engineering) Research

    December 01, 2021 research phd engineering software

    Now that I’ve finally delivered my PhD thesis (awaiting public defense), and after sharing for more than 3 years my tools, strategies, and tips for surviving in the academic world by word of mouth, I have finally got the time — and energy — to put this in a written form.

  • Listening to Satellites and Other Adventures

    September 28, 2021 radio satellites sdr

    Radio communications always had my curiosity, but little to no focus. Recently I bought a Software-defined Radio (SDR) and started doing some experiments… and now I’m building my own antennas for receiving satellite images. These are some field notes on radio waves and others.

  • A (not so) Gentle Intro to Active Directory: ØxOPOSɆC [0xF09F8EA3] Challenge

    June 30, 2021 activedirectory oposec infosec writeup

    Yet another month, yet another ØxOPOSɆC meetup. This is a write-up on the 0xF09F8EA3 edition Microsoft Active Directory challenge. Since it is my first challenge dealing with AD and domain controllers, some field notes and introductory notes are also presented.

  • Yet Another Raspberry Pi Cluster

    March 20, 2021 raspberrypi hardware devops network

    Those who are hardware tinkers and hackers know how easy it is to accumulate hardware thingies: single-board computers, microcontrollers, sensors and so on. One of those are Raspberry Pi’s of different version that lay around accomulating dust. It was time to give some usage to those idle computing resources in the form of a cluster for doing some experiments with networking, distributed computing, automation, etc.

  • Adventures in Reverse: D-Link DVA-G3170i

    February 02, 2021 hardware reverse iot router

    There are places over Portugal where fibre connections are still a mirage, and all we’ve got are DSL connections, more specifically Asymmetric DSL (ADSL). The ISP modem + router combo has been updated through the years, and some old ones have been left behind. One of those was a D-Link DVA-G3170i from 2011, which seemed a good practice target for some hardware reversing.

  • ØxOPOSɆC Mɇɇtuᵽ Summer Challenge 2020

    September 23, 2020 oposec infosec ctf

    “Based in Porto, the ØxOPOSɆC group was started by g33ks who are passionate about security. The meetup primary mission is to discuss and tackle upsurging security issues by leveraging the expertise and know-how of members of the group.” This year edition of the Summer Challenge consisted of 13 challenges belonging to 4 different categories, namely: Misc (3), Crypto (3), Web (3) and Trivia (4).

  • Summer 2020 RCTS CERT CTF Write-Up

    August 06, 2020 ctf security writeup

    This year the Computer Emergency Response Team (CERT) of the RCTS – The Science, Technology and Society Network – also known as NREN (National Research and Education Network), part of the FCCN (Foundation for National Scientific Computing) of the Portuguese Foundation for Science and Technology (FCT), organized for the first time a Capture The Flag competition targetting students from Portugal at different scholar degrees. The competition consisted of 21 challenges belonging to 7 different categories, namely: Reverse (5), Steganography (3), Web (3), Crypto (3), Forensics (4), Misc (2) and Wifi (1).

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